XenWiki - User contributions [en]

Protocols

2025-06-02T13:23:07Z

Christina: /* Protocols published in non-CSHL Journals and from Xenopus labs -click to view- */

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== '''''Books for Xenopus Research and Protocols''''' ==
*'''''Xenopus'' Protocols: Post-Genomic Approaches. ''' Hoppler and Vize, 2012 [http://xenbase.org/literature/book.do?method=display&bookId=262]
**expanded second edition with novel approaches inspired by ''X. tropicalis'' genome sequencing.

*'''The Laboratory ''Xenopus sp''.''' Green, 2010 [http://www.xenbase.org/literature/book.do?method=display&bookId=222]
**a highly detailed manual containing Xenopus husbandry, management, veterinary care, and frog and equipment vendor information

*'''''Xenopus'' Protocols: Cell Biology and Signal Transduction''' Liu (First edition), 2006 [http://www.xenbase.org/literature/book.do?method=display&bookId=206]
**step-by-step laboratory instructions, an introduction outlining the principles behind the technique, lists of the necessary equipment and reagents.

*'''Color Atlas of ''Xenopus laevis'' Histology''', Wiechmann and Wirsig-Wiechmann, 2003 [http://www.xenbase.org/literature/book.do?method=display&bookId=82]
**central source on the microscopic anatomy of cells, tissues, and major organs of Xenopus laevis.

*'''Early Development of ''Xenopus laevis'': A Laboratory Manual''', Sive, Grainger, and Harland, 2000 [http://www.xenbase.org/literature/book.do?method=display&bookId=22]
**comprehensive collection of protocols for the study of early development in Xenopus embryos

*'''Transgenic ''Xenopus'': Microinjection Methods and Developmental Neurobiology''', Seidman and Soreq, 1997 [http://www.xenbase.org/literature/book.do?method=display&bookId=203]
**referenced guide to the use of microinjected embryos studying the role and regulation of nervous system proteins during development.

*'''Atlas of ''Xenopus'' Development''', Bernardini, Prati, Bonetti, and Scari, 1999 [http://www.xenbase.org/literature/book.do?method=display&bookId=202]
**scanning, transmission, and light microscopy images of Xenopus embryonic development.

*'''Normal Table of ''Xenopus laevis'' (Daudin)''', Nieuwkoop and Faber (Third edition), 1994 [http://www.xenbase.org/literature/book.do?method=display&bookId=1]
**a systematic and chronological description of Xenopus laevis development.

*'''Xenopus laevis: Practical Uses in Cell and Molecular Biology, Volume 36''', Kay and Peng, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=204]
**detailed description of a wide range of uses for Xenopus laevis oocytes and embryos in cell and molecular biology.

*'''The early development of ''Xenopus laevis''. An atlas of the histology''', Hausen and Riebesell, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=124]
**detailed histological sections of Xenopus embryonic development

== '''''Xenopus Protocols and Video Demostrations: Online Resources''''' ==

=== '''Journal of Visualized Experiments (JOVE) - ''Xenopus'' embryo''' [http://www.jove.com/keyword/xenopus+embryo] - excellent video demonstrations and detailed protocols for a wide variety of lab protocols using ''Xenopus'' ===
**Methods for Tattooing ''Xenopus laevis'' with a Rotary Tattoo Machine- Super and Landino.[https://app.jove.com/t/67086/methods-for-tattooing-xenopus-laevis-with-a-rotary-tattoo-machine]
**Functional Evaluation of Olfactory Pathways in Living Xenopus Tadpoles - Terni et al. -[https://www.jove.com/video/58028/functional-evaluation-of-olfactory-pathways-in-living-xenopus-tadpoles]
**Obtaining Eggs from ''Xenopus laevi''s Females - Cross & Powers [http://www.jove.com/video/890/obtaining-eggs-from-xenopus-laevis-females]
**Microinjection of ''Xenopus laevis'' Oocytes - Cohen et al. - [http://www.jove.com/video/1106/microinjection-of-xenopus-laevis-oocytes]
**Fertilization of ''Xenopus'' oocytes, Host Transfer Method - Schneider et al. [http://www.jove.com/video/1864/fertilization-of-xenopus-oocytes-using-the-host-transfer-method]
**Tissue Determination Using Animal Cap Transplant (ACT) Assay in ''X. laevis'' - Viczian & Zuber [http://www.jove.com/video/1932/tissue-determination-using-animal-cap-transplant-act-assay-xenopus]
**Blastomere Explants to Test for Cell Fate Commitment - Grant et al. [http://www.jove.com/video/4458/blastomere-explants-to-test-for-cell-fate-commitment-during-embryonic]
**Transgenic ''Xenopus laevis'' by Restriction Enzyme Mediated Integration and Nuclear Transplantation - Amaya & Kroll [http://www.jove.com/video/2010/production-transgenic-xenopus-laevis-restriction-enzyme-mediated]
**Organizer and Animal Pole Explants from ''X. laevis'' Embryos and Cell Adhesion Assay - Ogata & Cho [http://www.jove.com/video/187/dissection-organizer-animal-pole-explants-from-xenopus-laevis-embryos]
**Plastic Embedding and Sectioning of ''X. laevis'' Embryos - Ogata1 et al. [http://www.jove.com/video/188/plastic-embedding-and-sectioning-of-xenopus-laevis-embryos]
**Visualizing RNA Localization in ''Xenopus'' Oocytes - Gagnon & Mowry [http://www.jove.com/video/1704/visualizing-rna-localization-in-xenopus-oocytes]
**Neural Explant Cultures from ''Xenopus laevis'' - Lowery et al. [http://www.jove.com/video/4232/neural-explant-cultures-from-xenopus-laevis]
**Translocation of Fluorescent Proteins in ''Xenopus'' Ectoderm in Response to Wnt Signaling - Itoh & Sokol [http://www.jove.com/video/2700/polarized-translocation-fluorescent-proteins-xenopus-ectoderm]
**Dissection, Culture, and Analysis of ''X. laevis'' Embryonic Retinal Tissue - McDonough et al. [http://www.jove.com/video/4377/dissection-culture-analysis-xenopus-laevis-embryonic-retinal]
**''X. tropicalis'' Egg Extracts to Identify Microtubule-associated RNAs - Sharp & Blower [http://www.jove.com/video/50434/production-xenopus-tropicalis-egg-extracts-to-identify-microtubule]
**Electroporation of Craniofacial Mesenchyme - Tabler & Liu [http://www.jove.com/video/3381/electroporation-of-craniofacial-mesenchyme]
**Electrophysiological Recording from ''Xenopus'' Nerve-muscle Co-cultures - Yazejian et al. [http://www.jove.com/video/50253/simultaneous-pre-post-synaptic-electrophysiological-recording-from]
**Single Cell Electroporation ''in vivo'' within the Intact Developing Brain - Hewapathirane & Haas - [http://www.jove.com/video/705/single-cell-electroporation-in-vivo-within-the-intact-developing-brain]
**Live-cell Imaging and Quantitative Analysis of Embryonic Epithelial Cells - Joshi & Davidson [http://www.jove.com/video/1949/live-cell-imaging-quantitative-analysis-embryonic-epithelial-cells]
**Preparation and Fractionation of ''Xenopus laevis'' Egg Extracts - Cross & Powers [http://www.jove.com/video/891/preparation-and-fractionation-of-xenopus-laevis-egg-extracts]
**In Vitro Nuclear Assembly Using Fractionated ''Xenopus'' Egg Extracts - Cross & Powers [http://www.jove.com/video/908/in-vitro-nuclear-assembly-using-fractionated-xenopus-egg-extracts]
**Study of the DNA Damage Checkpoint using ''Xenopus'' Egg Extracts - Willis et al. [http://www.jove.com/video/4449/study-of-the-dna-damage-checkpoint-using-xenopus-egg-extracts]
**Two Types of Assays for Detecting Frog Sperm Chemoattraction - Burnett et al. [http://www.jove.com/video/3407/two-types-of-assays-for-detecting-frog-sperm-chemoattraction]
**Comparative in vivo Study of gp96 Adjuvanticity in ''X. laevis'' - Nedelkovska et al. 2010. [http://www.jove.com/video/2026/comparative-vivo-study-gp96-adjuvanticity-frog-xenopus]
**Patch Clamp and Perfusion Techniques - Yang et al. [http://www.jove.com/video/2269/patch-clamp-perfusion-techniques-for-studying-ion-channels-expressed]
**Patch Clamp Recording of Ion Channels - Brown et al. [http://www.jove.com/video/936/patch-clamp-recording-of-ion-channels-expressed-in-xenopus-oocytes]
**Cation Transport in ''Xenopus'' Oocytes - Dürr et al.[http://www.jove.com/video/50201/measuring-cation-transport-nak-hk-atpase-xenopus-oocytes-atomic]
**Stem cell-like ''Xenopus'' Embryonic Explants to Study Early Neural Developmental Features In Vitro and In Vivo - BC.Durand [https://www.jove.com/video/53474/stem-cell-like-xenopus-embryonic-explants-to-study-early-neural]
**Dissection of ''Xenopus laevis'' Neural Crest for ''in vitro'' Explant Culture or in vivo Transplantation - Millet & Monsoro-Burq [https://www.jove.com/video/51118/dissection-xenopus-laevis-neural-crest-for-vitro-explant-culture-or]
**Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living ''Xenopus'' Tadpoles- Dao, Jones and Elul. 2019. [https://www.jove.com/video/60123/microinjection-dna-into-eyebuds-xenopus-laevis-embryos-imaging-gfp]
**Reconstitution Of β-catenin Degradation In Xenopus Egg Extract. Chen et al. 2020. [https://www.jove.com/video/51425/reconstitution-of-catenin-degradation-in-xenopus-egg-extract]

** ''Xenopus laevis'' Egg Extract Preparation and Live Imaging Methods for Visualizing Dynamic Cytoplasmic Organization. Xianrui Cheng and James Farrell. 2021. [https://www.jove.com/t/61923/xenopus-laevis-egg-extract-preparation-live-imaging-methods-for]

=='''Protocols published in non-CSHL Journals and from ''Xenopus'' labs -click to view-'''==
==='''''Xenopus Sperm cryopreservation'''''===
**'''Transitioning from a research protocol to a scalable applied pathway for Xenopus laevis sperm cryopreservation at a national stock center: The effect of cryoprotectants'''. Lucía Arregui, Jack C. Koch, Terrence R. Tiersch. 2023. JEZ-B molecular and Developmental Evolution[https://doi.org/10.1002/jez.b.23228]
**'''Cryopreservation of sperm of ''Xenopus laevis'' and ''Xenopus tropicalis''''' Michael G. Sargent, Timothy J. Mohun. 2005, Genesis [https://doi.org/10.1002/gene.20092]

==='''''Quantifying Transcription in Early Embryos'''''===
**'''Quantifying Nascent Transcription in Early Embryogenesis'''. Hui Chen. 2025, Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_9.]

==='''''Genotyping, Genome & DNA damage/repair'''''===
**'''Sex determination in ''Xenopus laevis'' via RT-PCR.''' Amin Eimanifar, John Aufderheide, Suzanne Z. Schneider, Henry Krueger, and Sean Gallagher 2019. "Development of an in vitro diagnostic method to determine the genotypic sex of Xenopus laevis". PeerJ January 1, 2019; 7 e6886. [[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6500372/]]
**'''Studying the DNA damage response in embryonic systems''' ElenaLo Furno, Bénédicte Recolin, Siemvan der Laan, Antoine Aze and Domenico Maiorano. 2021. Chapter Five in ''Methods in Enzymology'' Volume 661, 2021, Pages 95-120.[https://www.sciencedirect.com/science/article/abs/pii/S0076687921003591?via%3Dihub]
** '''Genotyping Tadpoles''' Susannah Rankin's Lab Protocol to determine gender via PCR. [[https://rankin.omrf.org/wp-content/uploads/sites/13/2013/02/tadpole-genotype.pdf]]

==='''''Chromosomes, DNA, Chromatin and Epigenetics'''''===
**'''Probing the Genomic Distribution of Histone Modifications in Egg Extract-Treated Sperm Nuclei.''' Florian Berger & Jérôme Jullien 2025. Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_1]
**'''HiChIP to Study 3D Genome Organization in ''Xenopus tropicalis'' Embryos.'''. Amina Hussein, Ira Blitz & Ken Cho. 2025. Methods Mol Biol Jan 01;2923:63-74. [https://doi: 10.1007/978-1-0716-4522-2_5.]

==='''''Behavioral Assays'''''===
**'''Precisely controlled visual stimulation to study experience-dependent neural plasticity in ''Xenopus'' tadpoles'''. Masaki Hiramoto and Hollis Cline. 2021. STAR Protocols | January 15, 2021. [[https://star-protocols.cell.com/protocols/361utm_campaign=STMJ_132371_CP_ALT&utm_medium=email&utm_acid=75932977&SIS_ID=&dgcid=STMJ_132371_CP_ALT&CMX_ID=&utm_in=DM121371&utm_source=AC_]]
=== '''''Cell cycle, Chromatin and Spindles''''' ===
**'''Immunochemical Detection of Modified Cytosine Species in Lampbrush Chromatin'''. Garry T. Morgan. 2021. In: Ruzov A., Gering M. (eds) DNA Modifications. Methods in Molecular Biology, vol 2198. Humana, New York, NY. [https://doi.org/10.1007/978-1-0716-0876-0_13]

==='''''Electrophysiology'''''===
**'''K+ Release Assay and K+ Measurement in Oocyte Assay'''. Hong Li. 2020. Bio-Protocol 10(21),Nov5,2020, [DOI:10.21769/BioProtoc.3802]
**'''A novel voltage-clamp/dye uptake assay reveals saturable transport of molecules through CALHM1 and connexin channels.''' Gaete et al 2021. J Gen Physiol. Nov 2; 152(11): e202012607. Published online 2020 Oct 19. doi: 10.1085/jgp.202012607. PMID:33074302.
**'''Electrophysiological Approaches for the Study of Ion Channel Function''' Guiying Cui, Kirsten A. Cottrill and Nael A. McCarty. 2021. Structure and Function of Membrane Proteins pp 49-67. [https://link.springer.com/protocol/10.1007%2F978-1-0716-1394-8_4]

=== '''''Xenopus oocyte cell free extract''''' ===
**'''DNA Damage Response in ''Xenopus laevis'' Cell-Free Extracts.''' Tomas Aparicio Casado and Jean Gautier 2021. In: Cell Cycle Checkpoints pp 103-144. Part of the Methods in Molecular Biology book series (MIMB, volume 2267). [https://link.springer.com/protocol/10.1007%2F978-1-0716-1217-0_8]
**'''Microfluidic encapsulation of ''Xenopus laevis'' cell-free extracts using hydrogel photolithography.''' Zachary Geisterfer, John Oakey, Jesse Gatlin. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100221 [[https://www.sciencedirect.com/science/article/pii/S2666166720302082?via%3Dihub]]
**''''Affinity Purification of Label-free Tubulins from ''Xenopus'' Egg Extracts''''. Sebastian Reusch, Abin Biswas, William Graham Hirst, SimoneReber. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100151. [[https://www.sciencedirect.com/science/article/pii/S2666166720301386?via%3Dihub]]
** '''Multi-purpose yolk-depleted embryo extracts.'''['''a freon-free protocol'''] Veenstra GJ, Destrée OH, Wolffe AP. Translation of maternal TATA-binding protein mRNA potentiates basal but not activated transcription in ''Xenopus'' embryos at the midblastula transition. Mol Cell Biol. 1999 Dec;19(12):7972-82. [[doi: 10.1128/MCB.19.12.7972]]. PMID: 10567523; PMCID: PMC84882.

=== '''''Xenopus oocyte expression system''''' ===
**'''The ''Xenopus'' Oocyte as an Expression System for Functional Analyses of Fish Aquaporins.''' François Chauvigné, Alba Ferré, Joan Cerdà. 2021. In: Dosch R. (eds) Germline Development in the Zebrafish. Methods in Molecular Biology, vol 2218. Humana, New York, NY. [[https://doi.org/10.1007/978-1-0716-0970-5_2]]

=== '''''Gene knock out/knock down and Gene Editing''''' ===
**'''Vivo-Morpholinos: a non-peptide transporter delivers Morpholinos into a wide array of mouse tissues'''. Morcos et al 2008. Biotechniques December 1, 2008; 45 (6): 613-4, 616, 618 passim. [https://www.xenbase.org/literature/article.do?articleId=58662&method=display] This technique has been used successfully in ''Xenopus'', See Ivanova et al 2021. XB-ART-58553, PubMed ID: 34676214. [https://www.xenbase.org/literature/article.do?articleId=58553&method=display]
**'''Morpholino Studies in ''Xenopus'' Brain Development''', Bestman and Cline. 2019, Brain Development pp 377-395, Part of the Methods in Molecular Biology book series (MIMB, volume 2047) [[https://link.springer.com/protocol/10.1007%2F978-1-4939-9732-9_21#enumeration]]
** '''Protocol for RNaseH-mediated RNA depletion''', see Supplemental file from "Optimized design of antisense oligomers for targeted rRNA depletion" by Wesley A. Phelps, Anne E. Carlson, Miler T. Lee, 2020. Nucleic Acids Research, gkaa1072, [[https://doi.org/10.1093/nar/gkaa1072]]
**'''Optimized design of antisense oligomers for targeted rRNA depletion'''. Wesley Phelps, Anne Carlson and Miler Lee. 2021. Nucleic Acids Res January 1, 2021; 49 (1): e5. [[https://academic.oup.com/nar/article/49/1/e5/5998392]] The Oligo-ASST Web tool is available at The Oligo-ASST Web tool is available at https://mtleelab.pitt.edu/oligo. Source code for the Web application and a command-line version of the program are available at https://github.com/MTLeeLab/oligo-asst.
===''RNA solubility, RNA interference (RNAi)''===
**'''A fractionation-based protocol to investigate RNA solubility phase transition during Xenopus oocyte maturation'''. Hyojeong Hwang, Meng Ma, Jing Yang 2024. STAR protocols. https://doi.org/10.1016/j.xpro.2023.102830 (OA in Cell Press- download PDF here: https://www.sciencedirect.com/science/article/pii/S2666166723007979?via%3Dihub)

**'''Application of the RNA interference technique to Xenopus embryos: Specific reduction of the β-catenin gene products by short double-stranded RNA produced by recombinant human Dicer''' Yuta Tagami, Takeshi Nishiyama, Michiko Omote, and Minoru Watanabe. 2021. Dev Growth Differ November 24, 2021;[https://onlinelibrary.wiley.com/doi/10.1111/dgd.12762]

=== '''''MassSpec & Proteomics''''' ===
** '''Quantitative Proteomics of ''Xenopus'' Embryos I, Sample Preparation'''. Meera Gupta, Matthew Sonnett, Lillia Ryazanova, Marc Presler, Martin Wühr . 2018. Methods Mol Biol 2018;1865:175-194. [[doi: 10.1007/978-1-4939-8784-9_13]]
**'''High-throughput transporter identification for small molecules in cell factories with validation using ''Xenopus'' expression assays.''' See ''Transportome-wide engineering of Saccharomyces cerevisiae,''. 2021. Wang et al. Metabolic Engineering.[https://www.sciencedirect.com/science/article/pii/S109671762100015X?via%3Dihub]
**'''Uptake Assays in Xenopus laevis Oocytes Using Liquid Chromatography-mass Spectrometry to Detect Transport Activity''' Jorgenson et al 2021. bio-protocol. [https://bio-protocol.org/e2581]
**'''Synthetic hyperacetylation of nucleosomal histones''' (protocol showing Synthetic histone acetylation inhibits DNA replication). Kajino et al 2021. RSC Chemical Biology [https://pubs.rsc.org/en/content/articlelanding/2020/CB/D0CB00029A]
** '''Xenopus laevis Oocytes Preparation for in-Cell EPR Spectroscopy''' (In-cell electron paramagnetic resonance (EPR) spectroscopy to determine the structure and dynamics of bio-macromolecules in the cell) Laura John and Malte Drescher. 2021. bio-protocol [https://bio-protocol.org/e2798]

==='''''Using Xenopus Skin to Study Cilia Development and Function'''''===
**'''Using Xenopus Skin to Study Cilia Development and Function''', Michael Werner & Brian Mitchell. 2013. Methods in Enzymology
Volume 525, 2013, Pages 191-217. [https://www.sciencedirect.com/science/article/abs/pii/B9780123979445000109?via%3Dihub]

== '''Cold Spring Harbor ''Xenopus'' Protocols''' Edited by Hazel Sive. published online 2017-2021. [http://cshprotocols.cshlp.org/search?fulltext=Xenopus&submit=yes&x=18&y=12&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic+introduction&tocsectionid=emerging+model+organisms&tocsectionid=product+protocol&tocsectionid=kit&tocsectionid=information+panel]==
Note: External links to CSHL press are provided but a subscription fee is required for access most CSHL protocols.
All CSHL protocol articles are Copyright 2018, 2019, 2020 or 2021 Cold Spring Harbor Laboratory Press- Request permission to re-use images/figures accordingly.

==='''''Husbandry and Obtaining Eggs and Embryos'''''===
**Raising and Maintaining ''Xenopus tropicalis'' from Tadpole to Adult. Maura Lane, Michael Slocum and Mustafa K Khokha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106369.long]
**Obtaining ''Xenopus tropicalis'' Eggs. Maura Lane, Emily K Mis and Mustafa K Khokha 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106344.long]
**Obtaining ''Xenopus tropicalis'' Embryos by Natural Mating. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106609.long]
**Obtaining ''Xenopus tropicalis'' Embryos by In Vitro Fertilization. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106351.long]
**Obtaining ''Xenopus laevis'' Eggs. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57590]
**Obtaining ''Xenopus laevis'' Embryos. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57598]
** Cryopreservation of ''Xenopus'' Sperm and In Vitro Fertilization Using Frozen Sperm Samples. Anna Nobel, Anita Abu-Daya, Matt Guille. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot107029.long]

=== '''''General Research Protocols''''' ===
**Microinjection of ''Xenopus tropicalis'' Embryos. Maura Lane , Emily K Mis and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107644.long]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Embryos. Jean-Pierre Saint-Jeannet. 2017 [http://cshprotocols.cshlp.org/content/2017/12/pdb.prot097287.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Oocytes. Diana Bauermeister and Tomas Pieler. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097014.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Fluorescence In Situ Hybridization of Cryosectioned ''Xenopus'' Oocytes. Christopher R. Neil and Kimberly Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.prot097030.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Whole-Mount Immunocytochemistry in ''Xenopus''. Michael W. Klymkowsky. 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.prot097295.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Microinjection of mRNAs and Oligonucleotides. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097261.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Microinjection of DNA Constructs into ''Xenopus'' Embryos for Gene Misexpression and cis-Regulatory Module Analysis. Yuuri Yasuoka and Masanori Taira. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097279.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Whole-Mount Immunofluorescence for Visualizing Endogenous Protein and Injected RNA in ''Xenopus'' Oocytes. Samantha P. Jeschonek and Kimberly L. Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097022.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Isolation of ''Xenopus'' Oocytes. Karen Newman, Tristan Aguero, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot095851.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Microinjection of ''Xenopus'' Oocytes. Tristan Aguero, Karen Newman, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot096974.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Oocyte Host-Transfer and Maternal mRNA Depletion Experiments in ''Xenopus''. Douglas W. Houston. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot096982.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Applying Tensile and Compressive Force to ''Xenopus'' Animal Cap Tissue. Georgina K. Goddard, Nawseen Tarannum, and Sarah Woolner. 2020. [http://cshprotocols.cshlp.org/content/early/2019/12/19/pdb.prot105551.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Isolation and Demembranation of ''Xenopus'' Sperm Nuclei. James W. Hazel and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099044.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Patch-Clamp and Perfusion Techniques to Study Ion Channels Expressed in ''Xenopus'' Oocytes. Guohui Zhang and Jianmin Cui. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot099051.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Heterologous Protein Expression in the ''Xenopus'' Oocyte. Jonathan S. Marchant. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096990.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Isolation and Analysis of ''Xenopus'' Germinal Vesicles. Garry T. Morgan. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096958.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**''Xenopus'' Tadpole Tissue Harvest. Matthew D. Patmann, Leena H. Shewade, Katelin A. Schneider, and Daniel R. Buchholz. 2017 [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot097675.full?sid=2def726a-9d33-480f-960a-2cb505467e1d].
**''In Vivo'' Transfection of Naked DNA into ''Xenopus'' Tadpole Tail Muscle. Lindsey Marshall, Fabrice Girardot, Barbara A. Demeneix, and Laurent Coen. 2017. [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot099366.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Cell Proliferation Analysis during ''Xenopus'' Metamorphosis: Using 5-Ethynyl-2-Deoxyuridine (EdU) to Stain Proliferating Intestinal Cells. Morihiro Okada and Yun-Bo Shi. 2017. [http://cshprotocols.cshlp.org/content/2017/9/pdb.prot097717.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''Genome Editing Protocols''''' ===
**Generating Nonmosaic Mutants in ''Xenopus'' Using CRISPR-Cas in Oocytes''' Sang-Wook Cha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot106989.long]
**CRISPR-Cas9 Mutagenesis in Xenopus tropicalis for Phenotypic Analyses in the F0 Generation and Beyond.Ira Blitz and Takuya Nakayama. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=58352]
** Modeling Human Genetic Disorders with CRISPR Technologies in ''Xenopus''. helen Willsey, Matt Guille, and Robert Grainger. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot106997.long]

=== ''''''Omics''''' ===
**Transcriptomics and Proteomics Methods for ''Xenopus'' Embryos and Tissues. Michael J. Gilchrist, Gert Jan C. Veenstra, and Ken W.Y. Cho. 2020. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/early/2019/11/26/pdb.top098350.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Mass Spectrometry-Based Absolute Quantification of Single ''Xenopus'' Embryo Proteomes. Rik G.H. Lindeboom, Arne H. Smits, Matteo Perino, Gert Jan C. Veenstra, and Michiel Vermeulen. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098376.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**INTACT Proteomics in ''Xenopus''. Lauren Wasson, Nirav M. Amin, and Frank L. Conlon. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098384.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
=== '''''Imaging''''' ===
**''Xenopus'' Tadpole Craniocardiac Imaging Using Optical Coherence Tomography. Engin Deniz, Emily K Mis, Maura Lane and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot105676.long]
**Live Imaging of Cytoskeletal Dynamics in Embryonic ''Xenopus laevis'' Growth Cones and Neural Crest Cells. Burcu Erdogan, Elizabeth Bearce, Laura Anne Lowery. 2020. [http://cshprotocols.cshlp.org/content/2021/4/pdb.prot104463.long]
**Imaging Methods in "Xenopus" Cells, Embryos, and Tadpoles. Lance A Davidson and Laura Anne Lowery. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.top105627.long]
**Imaging Structural and Functional Dynamics in ''Xenopus'' Neurons. Hollis Cline. 2021 [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.top106773.long]

=== '''''Genomes, Chromosomes, DNA, Chromatin and Epigenetics''''' ===
**''In Vitro'' Transcription Systems. Michael R. Green and Joseph Sambrook. [http://cshprotocols.cshlp.org/content/2020/1/pdb.top100750.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**ChIP-Sequencing in ''Xenopus'' Embryos. Saartje Hontelez, Ila van Kruijsbergen, and Gert Jan C. Veenstra. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097907.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Characterization in ''Xenopus laevis'' Cell-Free Egg Extracts and Embryos. Wei-Lin Wang, Takashi Onikubo, and David Shechter. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot099879.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Analysis of Chromatin Binding of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105577.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Analysis of Phosphorylation Status of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105569.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Assessing Ubiquitylation of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot104513.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Generating a Three-Dimensional Genome from ''Xenopus'' with Hi-C. Ian K. Quigley and Sven Heinz. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot098343.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**An RNA-Seq Protocol for Differential Expression Analysis. Nick D.L. Owens, Elena De Domenico, and Michael J. Gilchrist. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098368.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**DNase-seq to Study Chromatin Accessibility in Early ''Xenopus tropicalis'' Embryos. Jin Sun Cho, Ira L. Blitz, and Ken W.Y. Cho. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot098335.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Mapping Chromatin Features of ''Xenopus'' Embryos. George E. Gentsch and James C. Smith. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100263.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Reconstituting Nuclear and Chromosome Dynamics Using ''Xenopus'' Extracts. Susannah Rankin. 2019 [http://cshprotocols.cshlp.org/content/2019/3/pdb.top097105.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Extracts for Analysis of DNA Replication in a Nucleus-Free System. Justin Sparks and Johannes C. Walter. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.prot097154.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Endoplasmic Reticulum Network Formation with ''Xenopus'' Egg Extracts. Songyu Wang, Fabian B. Romano, and Tom A. Rapoport. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097204.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Chromosome Cohesion and Condensation in ''Xenopus'' Egg Extracts. Eulália M.L. da Silva and Susannah Rankin. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097121.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot104620.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Chromatin Immunoprecipitation for Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. 2018. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097725.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Endocrinology, Toxicology and Metamorphosis'''''===
**Methods for Investigating the Larval Period and Metamorphosis in ''Xenopus''. Daniel R. Buchholz and Yun-Bo Shi. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2018/10/pdb.top097667.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Frog Embryo Teratogenesis Assay—Xenopus (FETAX): Use in Alternative Preclinical Safety Assessment. Douglas J. Fort and Michael Mathis. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098319.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Following Endocrine-Disrupting Effects on Gene Expression in ''Xenopus laevis''. Petra Spirhanzlova, Michelle Leemans, Barbara A. Demeneix, and Jean-Baptiste Fini. 2019. Full-text link: [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot098301.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Larval Thymectomy of ''Xenopus laevis''. Sara Mashoof, Breanna Breaux, and Michael F. Criscitiello. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot099192.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Cell-free extracts, Cell-free systems''''' ===
**The Use of Cell-Free ''Xenopus'' Extracts to Investigate Cytoplasmic Events. Romain Gibeaux and Rebecca Heald. 2019.[[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2019/6/pdb.top097048.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Calculating the Degradation Rate of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot103481.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b].
**Special Considerations for Making Explants and Transplants with ''Xenopus tropicalis''. 2019. Marilyn Fisher and Robert M. Grainger. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]. Supplemental Material [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428/suppl/DC1].
**Filopodia-Like Structure Formation from ''Xenopus'' Egg Extracts. Helen M. Fox and Jennifer L. Gallop. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot100545.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Centromere and Kinetochore Assembly in ''Xenopus laevis'' Egg Extract. Julio C. Flores Servin and Aaron F. Straight. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot102509.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Dissecting Protein Complexes in Branching Microtubule Nucleation Using Meiotic Xenopus Egg Extracts. Jae-Geun Song and Sabine Petry. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot100958.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot097113.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Analysis of Mitotic Checkpoint Function in ''Xenopus'' Egg Extracts. Yinghui Mao. 2018 [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot099853.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Chemical Screening Using Cell-Free ''Xenopus'' Egg Extract. Matthew R. Broadus and Ethan Lee. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098277.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Robustly Cycling ''Xenopus laevis'' Cell-Free Extracts in Teflon Chambers. Jeremy B. Chang and James E. Ferrell Jr. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097212.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Microfluidic Encapsulation of Demembranated Sperm Nuclei in ''Xenopus'' Egg Extracts. John Oakey and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot102913.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Nucleus Assembly and Import in ''Xenopus laevis'' Egg Extract. Pan Chen and Daniel L. Levy. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097196.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Assembly of Spindles and Asters in ''Xenopus'' Egg Extracts. Christine M. Field and Timothy J. Mitchison. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099796.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Preparation of Cellular Extracts from ''Xenopus'' Eggs and Embryos. Matthew C. Good and Rebecca Heald. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097055.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Using the ''Xenopus'' Oocyte Toolbox. Kim L. Mowry. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/23/pdb.top095844.long]
**The Use of ''Xenopus'' for Cell Biology Applications. Anna Philpott. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57973]

=== '''''Immunobiology''''' ===
**Cryosectioning and Immunostaining of ''Xenopus'' Embryonic Tissues. Olga Ossipova and Sergei Y Sokol. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107151.long]
**Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105585.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Purifying Antibodies Raised against ''Xenopus'' Peptides. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105619.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Assessing the Immune Response When Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105593.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Lymphocyte Deficiency Induced by Sublethal Irradiation in ''Xenopus''. Louise A. Rollins-Smith and Jacques Robert. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097626.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de].
**Skin Grafting in ''Xenopus laevis'': A Technique for Assessing Development and Immunological Disparity. Yumi Izutsu. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099788.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Adoptive Transfer of Fluorescently Labeled Immune Cells in ''Xenopus''. Kun Hyoe Rhoo and Jacques Robert. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot097592.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Assessing Antibody Responses to Pathogens or Model Antigens in ''Xenopus'' by Enzyme-Linked Immunosorbent Assay (ELISA). Francisco De Jesús Andino and Jacques Robert. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099234.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''In Vivo'' Assessment of Neural Precursor Cell Cycle Kinetics in the Amphibian Retina. Morgane Locker and Muriel Perron2019. [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184], Supplemental Material [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536/suppl/DC1]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/search?hits=10&submit=yes&submit=Go&sortspec=date&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic%20introduction&tocsectionid=emerging%20model%20organisms&tocsectionid=product%20protocol&tocsectionid=kit&tocsectionid=information%20panel&format=standard&y=12&x=18&fulltext=Xenopus&FIRSTINDEX=60]
**Elicitation of Xenopus laevis Tadpole and Adult Frog Peritoneal Leukocytes. Leon Grayfer. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097642.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

==='''''Assessing Behaviour and Behavioural Phenotypes'''''===
**Schooling in Xenopus laevis Tadpoles as a Way to Assess Their Neural Development. Virgillio Lopez III, Arseny Khakhalin and CArlos Aizenman. 2021. [http://cshprotocols.cshlp.org/content/2021/5/pdb.prot106906]

==='''''Neurobiology, Electrophysiology and Tissue Regeneration'''''===
**Tetrode Recording in the ''Xenopus laevis'' Visual System Using Multichannel Glass Electrodes.M Hiramoto and Hollis Cline. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57786]
**Electrophysiological Approaches to Studying Normal and Abnormal Retinotectal Circuit Development in the ''Xenopus'' Tadpole. Kara Pratt. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57785]
**Making ''In Situ'' Whole-Cell Patch-Clamp Recordings from ''Xenopus laevis'' Tadpole Neurons. WC Li. 2021. [http://www.xenbase.org/literature/article.do?articleId=57784&method=display]
**Analysis of Visual Collision Avoidance in ''Xenopus'' Tadpoles. Arseny Khakhalin. 2020 [http://www.xenbase.org/literature/article.do?method=display&articleId=57593]
**''Ex Vivo'' Eye Tissue Culture Methods for ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101535.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Methods for Examining Lens Regeneration in ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101527.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Tracing Central Nervous System Axon Regeneration in ''Xenopus''. Kurt M. Gibbs and Ben G. Szaro. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101030.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Cell Transplantation as a Method to Investigate Spinal Cord Regeneration in Regenerative and Nonregenerative ''Xenopus'' Stages. Emilio E. Méndez-Olivos and Juan Larraín. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101006.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Infrared Laser-Mediated Gene Induction at the Single-Cell Level in the Regenerating Tail of ''Xenopus laevis'' Tadpoles. Riho Hasugata, Shinichi Hayashi, Aiko Kawasumi-Kita, Joe Sakamoto, Yasuhiro Kamei, and Hitoshi Yokoyama. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101014.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Rod-Specific Ablation Using the Nitroreductase/Metronidazole System to Investigate Regeneration in ''Xenopus''. Reyna I. Martinez-De Luna and Michael E. Zuber. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot100974.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Studies of Limb Regeneration in Larval ''Xenopus''. Anthony L. Mescher and Anton W. Neff. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100990.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864].
**Bulk Electroporation-Mediated Gene Transfer into Xenopus Tadpole Brain. Cristina Sáenz de Miera, Ethan Parr, and Robert J. Denver. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691.full?sid=d5693f80-e850-417d-a254-c0574571010e] . Supplemental Material [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691/suppl/DC1].
**Inverse Drug Screening of Bioelectric Signaling and Neurotransmitter Roles: Illustrated Using a ''Xenopus'' Tail Regeneration Assay. Kelly G. Sullivan and Michael Levin. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot099937.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Neurophysiological and Behavioral Analysis in ''Xenopus''. Ben Szaro. 2021. (Electrophysiology protocols for studies of neural circuitry in the developing optic tectum and spinal cord, vocalizations, and locomotory behavior).
[http://www.xenbase.org/literature/article.do?articleId=57966&method=display]
**Electrophysiological Recording for Study of ''Xenopus'' Retinotectal Circuitry. Y Luo , W Shen, and Hollis Cline. 2021. [http://www.xenbase.org/literature/article.do?articleId=57968&method=display]
**Bulk Dye Loading for In Vivo Calcium Imaging of Visual Responses in Populations of ''Xenopus'' Tectal Neurons. PW Hogg and K Haas. 2021. [http://www.xenbase.org/literature/article.do?method=display&articleId=57972]
** ''Xenopus'', a Model to Study Wound Healing and Regeneration: Experimental Approaches. Paula Slater, M Palacios, Juan Larraín. 2021. [http://www.xenbase.org/literature/article.do?articleId=57974&method=display]
** ''In Vivo'' Time-Lapse Imaging and Analysis of Dendritic Structural Plasticity in ''Xenopus laevis'' Tadpoles. Hai-Yun He, Chih-Yang Lin and Hollis Cline. 2021. [doi: 10.1101/pdb.prot106781] [https://www.xenbase.org/literature/article.do?articleId=57985&method=display]

==='''''Fate mapping, Explants and Transplants'''''===
**Dissecting and Culturing Animal Cap Explants. Kevin S. Dingwell and James C. Smith. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097329.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Cranial Neural Crest Explants. Hélène Cousin and Dominique Alfandari. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097394.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Einsteck Transplants. Hélène Cousin. 2019 [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097352.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Deletion and Transplantation to Test Cell Fate Commitment in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097311.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Explant Culture in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097303.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Lineage Tracing and Fate Mapping in ''Xenopus'' Embryos. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097253.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Collagen-Embedded Tumor Transplantations in ''Xenopus laevis'' Tadpoles. Maureen Banach and Jacques Robert. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097584.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]
**Organ Culture of the ''Xenopus'' Tadpole Intestine. Atsuko Ishizuya-Oka. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097683.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

===CSHL Recipes===
**Embryo Lysis Buffer (''Xenopus''). (Recipe 1) CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/7/pdb.rec106542.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**''Xenopus'' Embryo Lysis Buffer. (Recipe 2). CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec104984.full?sid=ee051c86-4c27-43bb-b30d-6ab36902aaf0]
**Lysis Buffer for ''Xenopus'' (recipe3) CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105775.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**DNA Isolation Buffer. CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106443.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Lysis Buffer for Xenopus Hi-C. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106435.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**RIPA Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.rec105932.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Amphibian Serum-Free (ASF) Medium Supplemented with Fetal Bovine Serum (FBS). CSHL 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec105387.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''Xenopus'' Eye Culture Medium. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec105072.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (1×). CSHLP. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103861.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (20×). CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.rec104406.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Injection Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105957.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**TE Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105973.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Proteinase K Buffer for ''Xenopus'' Oocytes. CSHLP 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103374.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**PBT/PBT-Plus for ''Xenopus'' Oocytes. CSHL. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103366.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Energy Mix for ''Xenopus'' Egg Extracts. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103606.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**''Xenopus'' Oocyte Culture Medium (XOCM).CSHL 2018.[http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103382.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**PBT for ''Xenopus'' Oocyte FISH.CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103630.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Blocking Solution for ''Xenopus'' Oocytes. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.rec103945.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Aldehyde Fixative (MEMFA). CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.rec102731.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Staining Buffer for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102798.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Blocking Solution for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102772.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Embryonic ''Xenopus'' Culture Media (CM). CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102699.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Hybridization Buffer (HB) for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102780.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]

='''Cold Spring Harbor ''Xenopus'' Protocols''' 2007. Edited by Hazel Sive=
**Housing and Feeding of Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.top8.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Inducing Ovulation in Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4734.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis In Vitro Fertilization and Natural Mating Methods - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4737.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Egg Collection and In Vitro Fertilization of the Western Clawed Frog Xenopus tropicalis - Showell & Conlon [http://cshprotocols.cshlp.org/content/2009/9/pdb.prot5293.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5534.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolating Xenopus laevis Testes - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4735.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Dejellying Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4731.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Removing the Vitelline Membrane from Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4732.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.ip81.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Defolliculation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5535.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5536.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Animal Cap Isolation from Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4744.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis Keller Explants - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4749.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of RNA and Preparation of Secreted Proteins from Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5538.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Calibration of the Injection Volume for Microinjection of Xenopus Oocytes and Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5537.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of DNA from Red Blood Cells in Xenopus - Sive et al. [http://cshprotocols.cshlp.org/content/2012/1/pdb.prot067462.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Investigating Morphogenesis in Xenopus Embryos: Imaging Strategies, Processing, and Analysis - Kim & Davidson [http://cshprotocols.cshlp.org/content/2013/4/pdb.top073890.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Low-Magnification Live Imaging of Xenopus Embryos for Cell and Developmental Biology - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5425.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**High-Magnification In Vivo Imaging of Xenopus Embryos for Cell and Developmental Biology - Keiserman et al. [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5427.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Preparation of Fixed Xenopus Embryos for Confocal Imaging - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5426.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Whole-Mount Fluorescence Immunocytochemistry on Xenopus Embryos - Lee et al. [http://cshprotocols.cshlp.org/content/2008/2/pdb.prot4957.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Generation of Transgenic Xenopus laevis - Kroll & Amaya - [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4838.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4839.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4840.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**In Vivo Time-Lapse Imaging of Neuronal Development in Xenopus - Ruthazer et al. [http://cshprotocols.cshlp.org/content/2013/9/pdb.top077156.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Photoconversion for Tracking the Dynamics of Cell Movement in Xenopus laevis Embryos - Chernet et al. [http://cshprotocols.cshlp.org/content/2012/6/pdb.prot068502.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Single-Cell Electroporation in Xenopus - Liu & Haas [http://cshprotocols.cshlp.org/content/2011/9/pdb.top065607.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Imaging Axon Pathfinding in Xenopus In Vivo - Leung & Holt [http://cshprotocols.cshlp.org/content/2012/9/pdb.prot070003.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**A Versatile Protocol for mRNA Electroporation of Xenopus laevis Embryos - Chernet & Levin [http://cshprotocols.cshlp.org/content/2012/4/pdb.prot067694.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]

== '''''General Research Protocols''''' ==

=== '''''Animal Husbandry''''' ===
*obtain frogs and frog housing equipment [http://www.xenbase.org/other/obtain.do]
*Xenopus Express links [http://www.xenopus.com/links.htm] - Xenopus Express husbandry [http://www.xenopus.com/husbandry.htm]
*[[Xenopus tropicalis and Xenopus laevis environmental parameter standard operating procedure (Kroll lab)]]

=== '''''[[Lab Solutions and Reagents]]''''' (click each to view expanded content) ===
*[[culture media]]
*[[immunohistochemistry]]
*[[in situ hybridization]]
*[[fixatives]]
*[[DNA/RNA preparation]]
*[[embryo manipulation/dissection]]
*[[microinjection]]
*[[general buffers and salt solutions]]

=== '''''Generating Embryos''''' ===
*[[inducing egg laying via hCG injection (Vize lab)]]
*[[anesthesia, in vitro fertilization, and natural mating of Xenopus tropicalis (Conlon lab)]]
*[[benzocaine stock, 100x (Khokha lab)]]
*[[in vitro fertilization of Xenopus laevis (Conlon lab)]]
*[[high-salt solution for egg laying (Zorn lab/Ron Laskey)]]
*[[dejellying embryos (Sive et al. 2000)]]
*[[dejellying embryos (Zorn lab)]]

=== '''''Transgenesis''''' ===
*[[transgenesis in ''Xenopus laevis'' - adapted from Amaya et al 2001 (Conlon lab)]]
*[[tadpole tail sampling for genomic DNA (Conlon lab)]]
*''Production of transgenic ''Xenopus laevis'' by restriction enzyme mediated integration and nuclear transplantation.'' Amaya E, Kroll K. J Vis Exp. 2010 Aug 21;(42). [http://www.jove.com/video/2010/production-of-transgenic-xenopus-laevis-by-restriction-enzyme-mediated-integration-and-nuclear-transplantation]
*''A method for generating transgenic frog embryos.'' Ishibashi S, Kroll KL, Amaya E. Methods Mol Biol. 2008;461:447-66. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*''A method for generating transgenic frog embryos.'' Amaya E, Kroll KL. Methods Mol Biol. 1999;97:393-414. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*Optimization Strategies for the CRISPR–Cas9 Genome-Editing System. Vejnar et al 2016. [http://cshprotocols.cshlp.org/content/2016/10/pdb.top090894.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''in situ Hybridization''''' ===
*[[in situ hybridization, brief version (Harland lab)]]
*[[whole-mount in situ hybridization (Conlon lab)]]
**[[in situ checklist (Conlon lab)]]
*[[whole-mount in situ hybridization - LNA probes (Wheeler lab)]]
*fluorescent in situs and FCIS (Vize lab)
**[[Wholemount embryo FISH / Double FISH]]
**[[Flourescin Tyramide Synthesis]]
**[[Cy3 Tyramide Synthesis]]
**[[FCIS]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''Immunohistochemistry''''' ===
*[[wholemount antibody staining (CSH Protocols) (Wallingford lab)]]
*[[wholemount antibody staining - alkaline phosphatase detection (Conlon lab)]]
*[[wholemount antibody staining - adapted from Dan Weeks' protocol (Conlon lab)]]
*[[immunostaining sectioned embryos (Conlon lab)]]
*[[hydrochloric acid antigen retrieval (Zorn lab)]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''ChIP protocols''''' ===
*'''Chromatin immunoprecipitation analysis of Xenopus embryos.''', Methods Mol Biol. 2012;917:279-92. [http://www.xenbase.org/literature/article.do?method=display&articleId=45851] [http://www.ncbi.nlm.nih.gov/pubmed/22956095]
**Akkers RC, Jacobi UG, Veenstra GJ.
*'''Chromatin immunoprecipitation in early Xenopus laevis embryos.''', Dev Dyn. 2009 Jun;238(6):1422-32. [http://www.xenbase.org/literature/article.do?method=display&articleId=39423] [http://www.ncbi.nlm.nih.gov/pubmed/19334278]
**Blythe SA, Reid CD, Kessler DS, Klein PS.

=== '''''Histology''''' ===
*[[cryosectioning ''Xenopus'' embryos (Conlon lab)]]

=== '''''Embryo Staining Protocols (non in situ)''''' ===
*[[benzidine-peroxidase staining for blood (Conlon lab)]]
*[[benzidine-peroxidase staining for blood (Thomsen lab)]]
*[[apoptosis via TUNEL (Veenstra lab)]]
*[[TUNEL staining of whole Xenopus embryos - Harland protocol (Conlon lab)]]

=== '''''Immuno and Protein Protocols''''' ===
*[[immunoprecipitation (Stukenberg lab)]]
*[[immunofluorescence with biotinylated antibodies (Stukenberg lab)]]
*Purifying Polyclonal Antibodies using Affinity Columns/Chromatography
*[[Making an Affinity Column]]
*[[Running an Affinity Column]]
*[[whole embryo protein extraction with freon (Conlon lab)]]
*[[SDS-PAGE gels (Conlon lab)]]
*[[western blot protocol (Conlon lab)]]
*[[silver staining protein gels (Stukenberg lab)]]

=== '''''Nucleic Acid Protocols''''' ===
*RNA Isolation
**[[Preparation of RNA Using Proteinase K/LiCl (Sive et al. 2000)]]
**[[Preparation of RNA (In Vitro Transcription) (Sive et al. 2000)]]
*DNA Isolation
**[[Extraction of DNA from Single Embryos (Sive et al. 2000)]]
**[[Isolation of DNA from Red Blood Cells (Sive et al. 2000)]]
*RNaseH-mediated RNA depletion
**[[Optimized design of antisense oligomers for targeted rRNA depletion (Phelps et al 2020))]] [[https://doi.org/10.1093/nar/gkaa1072]]

=== '''''[[Oocyte Transfer Technique (Heasman/Wylie labs)]]''''' ===
*[[Part 1: Choosing Oligodeoxyribonucleotides (ODNs)]]
*[[Part 2: ODN Modification]]
*[[Part 3: Host Transfer Technique]]
*[[Part 4: Fertilization and Development]]

=== '''''Xenopus Oocyte and Egg Extracts''''' ===
*[[crude interphase egg extract (Shechter lab)]]
*[[isolation of chromatin from egg extract and histone recovery (Shechter lab)]]
*[[preparation of cycling egg extract (Shechter lab)]]
*[[cycling extracts, mike's protocol (Stukenberg lab)]]
*[[cycling extracts, sara's protocol (Stukenberg lab)]]
*[[CSF extract, mike's protocol (Stukenberg lab)]]
*[[CSF extract, sara's protocol (Stukenberg lab)]]
*[[assaying H1 kinase in extracts (Stukenberg lab)]]
*[[frozen egg extracts that retain spindle assembly activity (Takagi and Shimamoto, 2017)]]

=== '''''Xenopus Tissue Culture''''' ===
*[[tissue culture of ''Xenopus'' cell lines S3, XTC (Stukenberg lab)]]
*[[isolation of mitotic chromosomes from XTC cells (Stukenberg lab)]]
*[[in-vitro kinetochore-microtubule binding assays (Stukenberg lab)]]

Protocols

2025-05-30T18:15:47Z

Christina: /* Chromosomes, DNA, Chromatin and Epigenetics */

__TOC__

== '''''Books for Xenopus Research and Protocols''''' ==
*'''''Xenopus'' Protocols: Post-Genomic Approaches. ''' Hoppler and Vize, 2012 [http://xenbase.org/literature/book.do?method=display&bookId=262]
**expanded second edition with novel approaches inspired by ''X. tropicalis'' genome sequencing.

*'''The Laboratory ''Xenopus sp''.''' Green, 2010 [http://www.xenbase.org/literature/book.do?method=display&bookId=222]
**a highly detailed manual containing Xenopus husbandry, management, veterinary care, and frog and equipment vendor information

*'''''Xenopus'' Protocols: Cell Biology and Signal Transduction''' Liu (First edition), 2006 [http://www.xenbase.org/literature/book.do?method=display&bookId=206]
**step-by-step laboratory instructions, an introduction outlining the principles behind the technique, lists of the necessary equipment and reagents.

*'''Color Atlas of ''Xenopus laevis'' Histology''', Wiechmann and Wirsig-Wiechmann, 2003 [http://www.xenbase.org/literature/book.do?method=display&bookId=82]
**central source on the microscopic anatomy of cells, tissues, and major organs of Xenopus laevis.

*'''Early Development of ''Xenopus laevis'': A Laboratory Manual''', Sive, Grainger, and Harland, 2000 [http://www.xenbase.org/literature/book.do?method=display&bookId=22]
**comprehensive collection of protocols for the study of early development in Xenopus embryos

*'''Transgenic ''Xenopus'': Microinjection Methods and Developmental Neurobiology''', Seidman and Soreq, 1997 [http://www.xenbase.org/literature/book.do?method=display&bookId=203]
**referenced guide to the use of microinjected embryos studying the role and regulation of nervous system proteins during development.

*'''Atlas of ''Xenopus'' Development''', Bernardini, Prati, Bonetti, and Scari, 1999 [http://www.xenbase.org/literature/book.do?method=display&bookId=202]
**scanning, transmission, and light microscopy images of Xenopus embryonic development.

*'''Normal Table of ''Xenopus laevis'' (Daudin)''', Nieuwkoop and Faber (Third edition), 1994 [http://www.xenbase.org/literature/book.do?method=display&bookId=1]
**a systematic and chronological description of Xenopus laevis development.

*'''Xenopus laevis: Practical Uses in Cell and Molecular Biology, Volume 36''', Kay and Peng, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=204]
**detailed description of a wide range of uses for Xenopus laevis oocytes and embryos in cell and molecular biology.

*'''The early development of ''Xenopus laevis''. An atlas of the histology''', Hausen and Riebesell, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=124]
**detailed histological sections of Xenopus embryonic development

== '''''Xenopus Protocols and Video Demostrations: Online Resources''''' ==

=== '''Journal of Visualized Experiments (JOVE) - ''Xenopus'' embryo''' [http://www.jove.com/keyword/xenopus+embryo] - excellent video demonstrations and detailed protocols for a wide variety of lab protocols using ''Xenopus'' ===
**Methods for Tattooing ''Xenopus laevis'' with a Rotary Tattoo Machine- Super and Landino.[https://app.jove.com/t/67086/methods-for-tattooing-xenopus-laevis-with-a-rotary-tattoo-machine]
**Functional Evaluation of Olfactory Pathways in Living Xenopus Tadpoles - Terni et al. -[https://www.jove.com/video/58028/functional-evaluation-of-olfactory-pathways-in-living-xenopus-tadpoles]
**Obtaining Eggs from ''Xenopus laevi''s Females - Cross & Powers [http://www.jove.com/video/890/obtaining-eggs-from-xenopus-laevis-females]
**Microinjection of ''Xenopus laevis'' Oocytes - Cohen et al. - [http://www.jove.com/video/1106/microinjection-of-xenopus-laevis-oocytes]
**Fertilization of ''Xenopus'' oocytes, Host Transfer Method - Schneider et al. [http://www.jove.com/video/1864/fertilization-of-xenopus-oocytes-using-the-host-transfer-method]
**Tissue Determination Using Animal Cap Transplant (ACT) Assay in ''X. laevis'' - Viczian & Zuber [http://www.jove.com/video/1932/tissue-determination-using-animal-cap-transplant-act-assay-xenopus]
**Blastomere Explants to Test for Cell Fate Commitment - Grant et al. [http://www.jove.com/video/4458/blastomere-explants-to-test-for-cell-fate-commitment-during-embryonic]
**Transgenic ''Xenopus laevis'' by Restriction Enzyme Mediated Integration and Nuclear Transplantation - Amaya & Kroll [http://www.jove.com/video/2010/production-transgenic-xenopus-laevis-restriction-enzyme-mediated]
**Organizer and Animal Pole Explants from ''X. laevis'' Embryos and Cell Adhesion Assay - Ogata & Cho [http://www.jove.com/video/187/dissection-organizer-animal-pole-explants-from-xenopus-laevis-embryos]
**Plastic Embedding and Sectioning of ''X. laevis'' Embryos - Ogata1 et al. [http://www.jove.com/video/188/plastic-embedding-and-sectioning-of-xenopus-laevis-embryos]
**Visualizing RNA Localization in ''Xenopus'' Oocytes - Gagnon & Mowry [http://www.jove.com/video/1704/visualizing-rna-localization-in-xenopus-oocytes]
**Neural Explant Cultures from ''Xenopus laevis'' - Lowery et al. [http://www.jove.com/video/4232/neural-explant-cultures-from-xenopus-laevis]
**Translocation of Fluorescent Proteins in ''Xenopus'' Ectoderm in Response to Wnt Signaling - Itoh & Sokol [http://www.jove.com/video/2700/polarized-translocation-fluorescent-proteins-xenopus-ectoderm]
**Dissection, Culture, and Analysis of ''X. laevis'' Embryonic Retinal Tissue - McDonough et al. [http://www.jove.com/video/4377/dissection-culture-analysis-xenopus-laevis-embryonic-retinal]
**''X. tropicalis'' Egg Extracts to Identify Microtubule-associated RNAs - Sharp & Blower [http://www.jove.com/video/50434/production-xenopus-tropicalis-egg-extracts-to-identify-microtubule]
**Electroporation of Craniofacial Mesenchyme - Tabler & Liu [http://www.jove.com/video/3381/electroporation-of-craniofacial-mesenchyme]
**Electrophysiological Recording from ''Xenopus'' Nerve-muscle Co-cultures - Yazejian et al. [http://www.jove.com/video/50253/simultaneous-pre-post-synaptic-electrophysiological-recording-from]
**Single Cell Electroporation ''in vivo'' within the Intact Developing Brain - Hewapathirane & Haas - [http://www.jove.com/video/705/single-cell-electroporation-in-vivo-within-the-intact-developing-brain]
**Live-cell Imaging and Quantitative Analysis of Embryonic Epithelial Cells - Joshi & Davidson [http://www.jove.com/video/1949/live-cell-imaging-quantitative-analysis-embryonic-epithelial-cells]
**Preparation and Fractionation of ''Xenopus laevis'' Egg Extracts - Cross & Powers [http://www.jove.com/video/891/preparation-and-fractionation-of-xenopus-laevis-egg-extracts]
**In Vitro Nuclear Assembly Using Fractionated ''Xenopus'' Egg Extracts - Cross & Powers [http://www.jove.com/video/908/in-vitro-nuclear-assembly-using-fractionated-xenopus-egg-extracts]
**Study of the DNA Damage Checkpoint using ''Xenopus'' Egg Extracts - Willis et al. [http://www.jove.com/video/4449/study-of-the-dna-damage-checkpoint-using-xenopus-egg-extracts]
**Two Types of Assays for Detecting Frog Sperm Chemoattraction - Burnett et al. [http://www.jove.com/video/3407/two-types-of-assays-for-detecting-frog-sperm-chemoattraction]
**Comparative in vivo Study of gp96 Adjuvanticity in ''X. laevis'' - Nedelkovska et al. 2010. [http://www.jove.com/video/2026/comparative-vivo-study-gp96-adjuvanticity-frog-xenopus]
**Patch Clamp and Perfusion Techniques - Yang et al. [http://www.jove.com/video/2269/patch-clamp-perfusion-techniques-for-studying-ion-channels-expressed]
**Patch Clamp Recording of Ion Channels - Brown et al. [http://www.jove.com/video/936/patch-clamp-recording-of-ion-channels-expressed-in-xenopus-oocytes]
**Cation Transport in ''Xenopus'' Oocytes - Dürr et al.[http://www.jove.com/video/50201/measuring-cation-transport-nak-hk-atpase-xenopus-oocytes-atomic]
**Stem cell-like ''Xenopus'' Embryonic Explants to Study Early Neural Developmental Features In Vitro and In Vivo - BC.Durand [https://www.jove.com/video/53474/stem-cell-like-xenopus-embryonic-explants-to-study-early-neural]
**Dissection of ''Xenopus laevis'' Neural Crest for ''in vitro'' Explant Culture or in vivo Transplantation - Millet & Monsoro-Burq [https://www.jove.com/video/51118/dissection-xenopus-laevis-neural-crest-for-vitro-explant-culture-or]
**Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living ''Xenopus'' Tadpoles- Dao, Jones and Elul. 2019. [https://www.jove.com/video/60123/microinjection-dna-into-eyebuds-xenopus-laevis-embryos-imaging-gfp]
**Reconstitution Of β-catenin Degradation In Xenopus Egg Extract. Chen et al. 2020. [https://www.jove.com/video/51425/reconstitution-of-catenin-degradation-in-xenopus-egg-extract]

** ''Xenopus laevis'' Egg Extract Preparation and Live Imaging Methods for Visualizing Dynamic Cytoplasmic Organization. Xianrui Cheng and James Farrell. 2021. [https://www.jove.com/t/61923/xenopus-laevis-egg-extract-preparation-live-imaging-methods-for]

=='''Protocols published in non-CSHL Journals and from ''Xenopus'' labs -click to view-'''==
==='''''Xenopus Sperm cryopreservation'''''===
**'''Transitioning from a research protocol to a scalable applied pathway for Xenopus laevis sperm cryopreservation at a national stock center: The effect of cryoprotectants'''. Lucía Arregui, Jack C. Koch, Terrence R. Tiersch. 2023. JEZ-B molecular and Developmental Evolution[https://doi.org/10.1002/jez.b.23228]
**'''Cryopreservation of sperm of ''Xenopus laevis'' and ''Xenopus tropicalis''''' Michael G. Sargent, Timothy J. Mohun. 2005, Genesis [https://doi.org/10.1002/gene.20092]

==='''''Quantifying Transcription in Early Embryos'''''===
**'''Quantifying Nascent Transcription in Early Embryogenesis'''. Hui Chen. 2025, Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_9.]

==='''''Genotyping, Genome & DNA damage/repair'''''===
**'''Sex determination in ''Xenopus laevis'' via RT-PCR.''' Amin Eimanifar, John Aufderheide, Suzanne Z. Schneider, Henry Krueger, and Sean Gallagher 2019. "Development of an in vitro diagnostic method to determine the genotypic sex of Xenopus laevis". PeerJ January 1, 2019; 7 e6886. [[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6500372/]]
**'''Studying the DNA damage response in embryonic systems''' ElenaLo Furno, Bénédicte Recolin, Siemvan der Laan, Antoine Aze and Domenico Maiorano. 2021. Chapter Five in ''Methods in Enzymology'' Volume 661, 2021, Pages 95-120.[https://www.sciencedirect.com/science/article/abs/pii/S0076687921003591?via%3Dihub]
** '''Genotyping Tadpoles''' Susannah Rankin's Lab Protocol to determine gender via PCR. [[https://rankin.omrf.org/wp-content/uploads/sites/13/2013/02/tadpole-genotype.pdf]]

==='''''Chromosomes, DNA, Chromatin and Epigenetics'''''===
**'''Probing the Genomic Distribution of Histone Modifications in Egg Extract-Treated Sperm Nuclei.''' Florian Berger & Jérôme Jullien 2025. Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_1]
**'''HiChIP to Study 3D Genome Organization in ''Xenopus tropicalis'' Embryos.'''. Amina Hussein, Ira Blitz & Ken Cho. 2025. Methods Mol Biol Jan 01;2923:63-74. [https://doi: 10.1007/978-1-0716-4522-2_5.]

=== '''''Behavioral Assays''''' ===
**'''Precisely controlled visual stimulation to study experience-dependent neural plasticity in ''Xenopus'' tadpoles'''. Masaki Hiramoto and Hollis Cline. 2021. STAR Protocols | January 15, 2021. [[https://star-protocols.cell.com/protocols/361utm_campaign=STMJ_132371_CP_ALT&utm_medium=email&utm_acid=75932977&SIS_ID=&dgcid=STMJ_132371_CP_ALT&CMX_ID=&utm_in=DM121371&utm_source=AC_]]
=== '''''Cell cycle, Chromatin and Spindles''''' ===
**'''Immunochemical Detection of Modified Cytosine Species in Lampbrush Chromatin'''. Garry T. Morgan. 2021. In: Ruzov A., Gering M. (eds) DNA Modifications. Methods in Molecular Biology, vol 2198. Humana, New York, NY. [https://doi.org/10.1007/978-1-0716-0876-0_13]

=== '''''Electrophysiology''''' ===
**'''K+ Release Assay and K+ Measurement in Oocyte Assay'''. Hong Li. 2020. Bio-Protocol 10(21),Nov5,2020, [DOI:10.21769/BioProtoc.3802]
**'''A novel voltage-clamp/dye uptake assay reveals saturable transport of molecules through CALHM1 and connexin channels.''' Gaete et al 2021. J Gen Physiol. Nov 2; 152(11): e202012607. Published online 2020 Oct 19. doi: 10.1085/jgp.202012607. PMID:33074302.
**'''Electrophysiological Approaches for the Study of Ion Channel Function''' Guiying Cui, Kirsten A. Cottrill and Nael A. McCarty. 2021. Structure and Function of Membrane Proteins pp 49-67. [https://link.springer.com/protocol/10.1007%2F978-1-0716-1394-8_4]

=== '''''Xenopus oocyte cell free extract''''' ===
**'''DNA Damage Response in ''Xenopus laevis'' Cell-Free Extracts.''' Tomas Aparicio Casado and Jean Gautier 2021. In: Cell Cycle Checkpoints pp 103-144. Part of the Methods in Molecular Biology book series (MIMB, volume 2267). [https://link.springer.com/protocol/10.1007%2F978-1-0716-1217-0_8]
**'''Microfluidic encapsulation of ''Xenopus laevis'' cell-free extracts using hydrogel photolithography.''' Zachary Geisterfer, John Oakey, Jesse Gatlin. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100221 [[https://www.sciencedirect.com/science/article/pii/S2666166720302082?via%3Dihub]]
**''''Affinity Purification of Label-free Tubulins from ''Xenopus'' Egg Extracts''''. Sebastian Reusch, Abin Biswas, William Graham Hirst, SimoneReber. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100151. [[https://www.sciencedirect.com/science/article/pii/S2666166720301386?via%3Dihub]]
** '''Multi-purpose yolk-depleted embryo extracts.'''['''a freon-free protocol'''] Veenstra GJ, Destrée OH, Wolffe AP. Translation of maternal TATA-binding protein mRNA potentiates basal but not activated transcription in ''Xenopus'' embryos at the midblastula transition. Mol Cell Biol. 1999 Dec;19(12):7972-82. [[doi: 10.1128/MCB.19.12.7972]]. PMID: 10567523; PMCID: PMC84882.

=== '''''Xenopus oocyte expression system''''' ===
**'''The ''Xenopus'' Oocyte as an Expression System for Functional Analyses of Fish Aquaporins.''' François Chauvigné, Alba Ferré, Joan Cerdà. 2021. In: Dosch R. (eds) Germline Development in the Zebrafish. Methods in Molecular Biology, vol 2218. Humana, New York, NY. [[https://doi.org/10.1007/978-1-0716-0970-5_2]]

=== '''''Gene knock out/knock down and Gene Editing''''' ===
**'''Vivo-Morpholinos: a non-peptide transporter delivers Morpholinos into a wide array of mouse tissues'''. Morcos et al 2008. Biotechniques December 1, 2008; 45 (6): 613-4, 616, 618 passim. [https://www.xenbase.org/literature/article.do?articleId=58662&method=display] This technique has been used successfully in ''Xenopus'', See Ivanova et al 2021. XB-ART-58553, PubMed ID: 34676214. [https://www.xenbase.org/literature/article.do?articleId=58553&method=display]
**'''Morpholino Studies in ''Xenopus'' Brain Development''', Bestman and Cline. 2019, Brain Development pp 377-395, Part of the Methods in Molecular Biology book series (MIMB, volume 2047) [[https://link.springer.com/protocol/10.1007%2F978-1-4939-9732-9_21#enumeration]]
** '''Protocol for RNaseH-mediated RNA depletion''', see Supplemental file from "Optimized design of antisense oligomers for targeted rRNA depletion" by Wesley A. Phelps, Anne E. Carlson, Miler T. Lee, 2020. Nucleic Acids Research, gkaa1072, [[https://doi.org/10.1093/nar/gkaa1072]]
**'''Optimized design of antisense oligomers for targeted rRNA depletion'''. Wesley Phelps, Anne Carlson and Miler Lee. 2021. Nucleic Acids Res January 1, 2021; 49 (1): e5. [[https://academic.oup.com/nar/article/49/1/e5/5998392]] The Oligo-ASST Web tool is available at The Oligo-ASST Web tool is available at https://mtleelab.pitt.edu/oligo. Source code for the Web application and a command-line version of the program are available at https://github.com/MTLeeLab/oligo-asst.
===''RNA solubility, RNA interference (RNAi)''===
**'''A fractionation-based protocol to investigate RNA solubility phase transition during Xenopus oocyte maturation'''. Hyojeong Hwang, Meng Ma, Jing Yang 2024. STAR protocols. https://doi.org/10.1016/j.xpro.2023.102830 (OA in Cell Press- download PDF here: https://www.sciencedirect.com/science/article/pii/S2666166723007979?via%3Dihub)

**'''Application of the RNA interference technique to Xenopus embryos: Specific reduction of the β-catenin gene products by short double-stranded RNA produced by recombinant human Dicer''' Yuta Tagami, Takeshi Nishiyama, Michiko Omote, and Minoru Watanabe. 2021. Dev Growth Differ November 24, 2021;[https://onlinelibrary.wiley.com/doi/10.1111/dgd.12762]

=== '''''MassSpec & Proteomics''''' ===
** '''Quantitative Proteomics of ''Xenopus'' Embryos I, Sample Preparation'''. Meera Gupta, Matthew Sonnett, Lillia Ryazanova, Marc Presler, Martin Wühr . 2018. Methods Mol Biol 2018;1865:175-194. [[doi: 10.1007/978-1-4939-8784-9_13]]
**'''High-throughput transporter identification for small molecules in cell factories with validation using ''Xenopus'' expression assays.''' See ''Transportome-wide engineering of Saccharomyces cerevisiae,''. 2021. Wang et al. Metabolic Engineering.[https://www.sciencedirect.com/science/article/pii/S109671762100015X?via%3Dihub]
**'''Uptake Assays in Xenopus laevis Oocytes Using Liquid Chromatography-mass Spectrometry to Detect Transport Activity''' Jorgenson et al 2021. bio-protocol. [https://bio-protocol.org/e2581]
**'''Synthetic hyperacetylation of nucleosomal histones''' (protocol showing Synthetic histone acetylation inhibits DNA replication). Kajino et al 2021. RSC Chemical Biology [https://pubs.rsc.org/en/content/articlelanding/2020/CB/D0CB00029A]
** '''Xenopus laevis Oocytes Preparation for in-Cell EPR Spectroscopy''' (In-cell electron paramagnetic resonance (EPR) spectroscopy to determine the structure and dynamics of bio-macromolecules in the cell) Laura John and Malte Drescher. 2021. bio-protocol [https://bio-protocol.org/e2798]

== '''Cold Spring Harbor ''Xenopus'' Protocols''' Edited by Hazel Sive. published online 2017-2021. [http://cshprotocols.cshlp.org/search?fulltext=Xenopus&submit=yes&x=18&y=12&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic+introduction&tocsectionid=emerging+model+organisms&tocsectionid=product+protocol&tocsectionid=kit&tocsectionid=information+panel]==
Note: External links to CSHL press are provided but a subscription fee is required for access most CSHL protocols.
All CSHL protocol articles are Copyright 2018, 2019, 2020 or 2021 Cold Spring Harbor Laboratory Press- Request permission to re-use images/figures accordingly.

==='''''Husbandry and Obtaining Eggs and Embryos'''''===
**Raising and Maintaining ''Xenopus tropicalis'' from Tadpole to Adult. Maura Lane, Michael Slocum and Mustafa K Khokha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106369.long]
**Obtaining ''Xenopus tropicalis'' Eggs. Maura Lane, Emily K Mis and Mustafa K Khokha 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106344.long]
**Obtaining ''Xenopus tropicalis'' Embryos by Natural Mating. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106609.long]
**Obtaining ''Xenopus tropicalis'' Embryos by In Vitro Fertilization. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106351.long]
**Obtaining ''Xenopus laevis'' Eggs. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57590]
**Obtaining ''Xenopus laevis'' Embryos. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57598]
** Cryopreservation of ''Xenopus'' Sperm and In Vitro Fertilization Using Frozen Sperm Samples. Anna Nobel, Anita Abu-Daya, Matt Guille. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot107029.long]

=== '''''General Research Protocols''''' ===
**Microinjection of ''Xenopus tropicalis'' Embryos. Maura Lane , Emily K Mis and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107644.long]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Embryos. Jean-Pierre Saint-Jeannet. 2017 [http://cshprotocols.cshlp.org/content/2017/12/pdb.prot097287.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Oocytes. Diana Bauermeister and Tomas Pieler. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097014.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Fluorescence In Situ Hybridization of Cryosectioned ''Xenopus'' Oocytes. Christopher R. Neil and Kimberly Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.prot097030.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Whole-Mount Immunocytochemistry in ''Xenopus''. Michael W. Klymkowsky. 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.prot097295.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Microinjection of mRNAs and Oligonucleotides. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097261.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Microinjection of DNA Constructs into ''Xenopus'' Embryos for Gene Misexpression and cis-Regulatory Module Analysis. Yuuri Yasuoka and Masanori Taira. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097279.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Whole-Mount Immunofluorescence for Visualizing Endogenous Protein and Injected RNA in ''Xenopus'' Oocytes. Samantha P. Jeschonek and Kimberly L. Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097022.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Isolation of ''Xenopus'' Oocytes. Karen Newman, Tristan Aguero, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot095851.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Microinjection of ''Xenopus'' Oocytes. Tristan Aguero, Karen Newman, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot096974.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Oocyte Host-Transfer and Maternal mRNA Depletion Experiments in ''Xenopus''. Douglas W. Houston. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot096982.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Applying Tensile and Compressive Force to ''Xenopus'' Animal Cap Tissue. Georgina K. Goddard, Nawseen Tarannum, and Sarah Woolner. 2020. [http://cshprotocols.cshlp.org/content/early/2019/12/19/pdb.prot105551.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Isolation and Demembranation of ''Xenopus'' Sperm Nuclei. James W. Hazel and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099044.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Patch-Clamp and Perfusion Techniques to Study Ion Channels Expressed in ''Xenopus'' Oocytes. Guohui Zhang and Jianmin Cui. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot099051.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Heterologous Protein Expression in the ''Xenopus'' Oocyte. Jonathan S. Marchant. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096990.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Isolation and Analysis of ''Xenopus'' Germinal Vesicles. Garry T. Morgan. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096958.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**''Xenopus'' Tadpole Tissue Harvest. Matthew D. Patmann, Leena H. Shewade, Katelin A. Schneider, and Daniel R. Buchholz. 2017 [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot097675.full?sid=2def726a-9d33-480f-960a-2cb505467e1d].
**''In Vivo'' Transfection of Naked DNA into ''Xenopus'' Tadpole Tail Muscle. Lindsey Marshall, Fabrice Girardot, Barbara A. Demeneix, and Laurent Coen. 2017. [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot099366.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Cell Proliferation Analysis during ''Xenopus'' Metamorphosis: Using 5-Ethynyl-2-Deoxyuridine (EdU) to Stain Proliferating Intestinal Cells. Morihiro Okada and Yun-Bo Shi. 2017. [http://cshprotocols.cshlp.org/content/2017/9/pdb.prot097717.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''Genome Editing Protocols''''' ===
**Generating Nonmosaic Mutants in ''Xenopus'' Using CRISPR-Cas in Oocytes''' Sang-Wook Cha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot106989.long]
**CRISPR-Cas9 Mutagenesis in Xenopus tropicalis for Phenotypic Analyses in the F0 Generation and Beyond.Ira Blitz and Takuya Nakayama. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=58352]
** Modeling Human Genetic Disorders with CRISPR Technologies in ''Xenopus''. helen Willsey, Matt Guille, and Robert Grainger. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot106997.long]

=== ''''''Omics''''' ===
**Transcriptomics and Proteomics Methods for ''Xenopus'' Embryos and Tissues. Michael J. Gilchrist, Gert Jan C. Veenstra, and Ken W.Y. Cho. 2020. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/early/2019/11/26/pdb.top098350.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Mass Spectrometry-Based Absolute Quantification of Single ''Xenopus'' Embryo Proteomes. Rik G.H. Lindeboom, Arne H. Smits, Matteo Perino, Gert Jan C. Veenstra, and Michiel Vermeulen. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098376.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**INTACT Proteomics in ''Xenopus''. Lauren Wasson, Nirav M. Amin, and Frank L. Conlon. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098384.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
=== '''''Imaging''''' ===
**''Xenopus'' Tadpole Craniocardiac Imaging Using Optical Coherence Tomography. Engin Deniz, Emily K Mis, Maura Lane and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot105676.long]
**Live Imaging of Cytoskeletal Dynamics in Embryonic ''Xenopus laevis'' Growth Cones and Neural Crest Cells. Burcu Erdogan, Elizabeth Bearce, Laura Anne Lowery. 2020. [http://cshprotocols.cshlp.org/content/2021/4/pdb.prot104463.long]
**Imaging Methods in "Xenopus" Cells, Embryos, and Tadpoles. Lance A Davidson and Laura Anne Lowery. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.top105627.long]
**Imaging Structural and Functional Dynamics in ''Xenopus'' Neurons. Hollis Cline. 2021 [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.top106773.long]

=== '''''Genomes, Chromosomes, DNA, Chromatin and Epigenetics''''' ===
**''In Vitro'' Transcription Systems. Michael R. Green and Joseph Sambrook. [http://cshprotocols.cshlp.org/content/2020/1/pdb.top100750.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**ChIP-Sequencing in ''Xenopus'' Embryos. Saartje Hontelez, Ila van Kruijsbergen, and Gert Jan C. Veenstra. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097907.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Characterization in ''Xenopus laevis'' Cell-Free Egg Extracts and Embryos. Wei-Lin Wang, Takashi Onikubo, and David Shechter. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot099879.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Analysis of Chromatin Binding of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105577.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Analysis of Phosphorylation Status of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105569.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Assessing Ubiquitylation of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot104513.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Generating a Three-Dimensional Genome from ''Xenopus'' with Hi-C. Ian K. Quigley and Sven Heinz. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot098343.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**An RNA-Seq Protocol for Differential Expression Analysis. Nick D.L. Owens, Elena De Domenico, and Michael J. Gilchrist. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098368.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**DNase-seq to Study Chromatin Accessibility in Early ''Xenopus tropicalis'' Embryos. Jin Sun Cho, Ira L. Blitz, and Ken W.Y. Cho. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot098335.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Mapping Chromatin Features of ''Xenopus'' Embryos. George E. Gentsch and James C. Smith. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100263.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Reconstituting Nuclear and Chromosome Dynamics Using ''Xenopus'' Extracts. Susannah Rankin. 2019 [http://cshprotocols.cshlp.org/content/2019/3/pdb.top097105.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Extracts for Analysis of DNA Replication in a Nucleus-Free System. Justin Sparks and Johannes C. Walter. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.prot097154.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Endoplasmic Reticulum Network Formation with ''Xenopus'' Egg Extracts. Songyu Wang, Fabian B. Romano, and Tom A. Rapoport. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097204.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Chromosome Cohesion and Condensation in ''Xenopus'' Egg Extracts. Eulália M.L. da Silva and Susannah Rankin. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097121.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot104620.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Chromatin Immunoprecipitation for Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. 2018. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097725.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Endocrinology, Toxicology and Metamorphosis'''''===
**Methods for Investigating the Larval Period and Metamorphosis in ''Xenopus''. Daniel R. Buchholz and Yun-Bo Shi. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2018/10/pdb.top097667.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Frog Embryo Teratogenesis Assay—Xenopus (FETAX): Use in Alternative Preclinical Safety Assessment. Douglas J. Fort and Michael Mathis. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098319.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Following Endocrine-Disrupting Effects on Gene Expression in ''Xenopus laevis''. Petra Spirhanzlova, Michelle Leemans, Barbara A. Demeneix, and Jean-Baptiste Fini. 2019. Full-text link: [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot098301.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Larval Thymectomy of ''Xenopus laevis''. Sara Mashoof, Breanna Breaux, and Michael F. Criscitiello. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot099192.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Cell-free extracts, Cell-free systems''''' ===
**The Use of Cell-Free ''Xenopus'' Extracts to Investigate Cytoplasmic Events. Romain Gibeaux and Rebecca Heald. 2019.[[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2019/6/pdb.top097048.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Calculating the Degradation Rate of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot103481.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b].
**Special Considerations for Making Explants and Transplants with ''Xenopus tropicalis''. 2019. Marilyn Fisher and Robert M. Grainger. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]. Supplemental Material [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428/suppl/DC1].
**Filopodia-Like Structure Formation from ''Xenopus'' Egg Extracts. Helen M. Fox and Jennifer L. Gallop. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot100545.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Centromere and Kinetochore Assembly in ''Xenopus laevis'' Egg Extract. Julio C. Flores Servin and Aaron F. Straight. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot102509.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Dissecting Protein Complexes in Branching Microtubule Nucleation Using Meiotic Xenopus Egg Extracts. Jae-Geun Song and Sabine Petry. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot100958.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot097113.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Analysis of Mitotic Checkpoint Function in ''Xenopus'' Egg Extracts. Yinghui Mao. 2018 [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot099853.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Chemical Screening Using Cell-Free ''Xenopus'' Egg Extract. Matthew R. Broadus and Ethan Lee. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098277.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Robustly Cycling ''Xenopus laevis'' Cell-Free Extracts in Teflon Chambers. Jeremy B. Chang and James E. Ferrell Jr. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097212.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Microfluidic Encapsulation of Demembranated Sperm Nuclei in ''Xenopus'' Egg Extracts. John Oakey and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot102913.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Nucleus Assembly and Import in ''Xenopus laevis'' Egg Extract. Pan Chen and Daniel L. Levy. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097196.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Assembly of Spindles and Asters in ''Xenopus'' Egg Extracts. Christine M. Field and Timothy J. Mitchison. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099796.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Preparation of Cellular Extracts from ''Xenopus'' Eggs and Embryos. Matthew C. Good and Rebecca Heald. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097055.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Using the ''Xenopus'' Oocyte Toolbox. Kim L. Mowry. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/23/pdb.top095844.long]
**The Use of ''Xenopus'' for Cell Biology Applications. Anna Philpott. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57973]

=== '''''Immunobiology''''' ===
**Cryosectioning and Immunostaining of ''Xenopus'' Embryonic Tissues. Olga Ossipova and Sergei Y Sokol. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107151.long]
**Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105585.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Purifying Antibodies Raised against ''Xenopus'' Peptides. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105619.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Assessing the Immune Response When Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105593.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Lymphocyte Deficiency Induced by Sublethal Irradiation in ''Xenopus''. Louise A. Rollins-Smith and Jacques Robert. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097626.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de].
**Skin Grafting in ''Xenopus laevis'': A Technique for Assessing Development and Immunological Disparity. Yumi Izutsu. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099788.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Adoptive Transfer of Fluorescently Labeled Immune Cells in ''Xenopus''. Kun Hyoe Rhoo and Jacques Robert. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot097592.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Assessing Antibody Responses to Pathogens or Model Antigens in ''Xenopus'' by Enzyme-Linked Immunosorbent Assay (ELISA). Francisco De Jesús Andino and Jacques Robert. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099234.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''In Vivo'' Assessment of Neural Precursor Cell Cycle Kinetics in the Amphibian Retina. Morgane Locker and Muriel Perron2019. [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184], Supplemental Material [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536/suppl/DC1]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/search?hits=10&submit=yes&submit=Go&sortspec=date&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic%20introduction&tocsectionid=emerging%20model%20organisms&tocsectionid=product%20protocol&tocsectionid=kit&tocsectionid=information%20panel&format=standard&y=12&x=18&fulltext=Xenopus&FIRSTINDEX=60]
**Elicitation of Xenopus laevis Tadpole and Adult Frog Peritoneal Leukocytes. Leon Grayfer. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097642.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

==='''''Assessing Behaviour and Behavioural Phenotypes'''''===
**Schooling in Xenopus laevis Tadpoles as a Way to Assess Their Neural Development. Virgillio Lopez III, Arseny Khakhalin and CArlos Aizenman. 2021. [http://cshprotocols.cshlp.org/content/2021/5/pdb.prot106906]

==='''''Neurobiology, Electrophysiology and Tissue Regeneration'''''===
**Tetrode Recording in the ''Xenopus laevis'' Visual System Using Multichannel Glass Electrodes.M Hiramoto and Hollis Cline. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57786]
**Electrophysiological Approaches to Studying Normal and Abnormal Retinotectal Circuit Development in the ''Xenopus'' Tadpole. Kara Pratt. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57785]
**Making ''In Situ'' Whole-Cell Patch-Clamp Recordings from ''Xenopus laevis'' Tadpole Neurons. WC Li. 2021. [http://www.xenbase.org/literature/article.do?articleId=57784&method=display]
**Analysis of Visual Collision Avoidance in ''Xenopus'' Tadpoles. Arseny Khakhalin. 2020 [http://www.xenbase.org/literature/article.do?method=display&articleId=57593]
**''Ex Vivo'' Eye Tissue Culture Methods for ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101535.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Methods for Examining Lens Regeneration in ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101527.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Tracing Central Nervous System Axon Regeneration in ''Xenopus''. Kurt M. Gibbs and Ben G. Szaro. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101030.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Cell Transplantation as a Method to Investigate Spinal Cord Regeneration in Regenerative and Nonregenerative ''Xenopus'' Stages. Emilio E. Méndez-Olivos and Juan Larraín. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101006.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Infrared Laser-Mediated Gene Induction at the Single-Cell Level in the Regenerating Tail of ''Xenopus laevis'' Tadpoles. Riho Hasugata, Shinichi Hayashi, Aiko Kawasumi-Kita, Joe Sakamoto, Yasuhiro Kamei, and Hitoshi Yokoyama. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101014.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Rod-Specific Ablation Using the Nitroreductase/Metronidazole System to Investigate Regeneration in ''Xenopus''. Reyna I. Martinez-De Luna and Michael E. Zuber. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot100974.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Studies of Limb Regeneration in Larval ''Xenopus''. Anthony L. Mescher and Anton W. Neff. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100990.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864].
**Bulk Electroporation-Mediated Gene Transfer into Xenopus Tadpole Brain. Cristina Sáenz de Miera, Ethan Parr, and Robert J. Denver. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691.full?sid=d5693f80-e850-417d-a254-c0574571010e] . Supplemental Material [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691/suppl/DC1].
**Inverse Drug Screening of Bioelectric Signaling and Neurotransmitter Roles: Illustrated Using a ''Xenopus'' Tail Regeneration Assay. Kelly G. Sullivan and Michael Levin. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot099937.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Neurophysiological and Behavioral Analysis in ''Xenopus''. Ben Szaro. 2021. (Electrophysiology protocols for studies of neural circuitry in the developing optic tectum and spinal cord, vocalizations, and locomotory behavior).
[http://www.xenbase.org/literature/article.do?articleId=57966&method=display]
**Electrophysiological Recording for Study of ''Xenopus'' Retinotectal Circuitry. Y Luo , W Shen, and Hollis Cline. 2021. [http://www.xenbase.org/literature/article.do?articleId=57968&method=display]
**Bulk Dye Loading for In Vivo Calcium Imaging of Visual Responses in Populations of ''Xenopus'' Tectal Neurons. PW Hogg and K Haas. 2021. [http://www.xenbase.org/literature/article.do?method=display&articleId=57972]
** ''Xenopus'', a Model to Study Wound Healing and Regeneration: Experimental Approaches. Paula Slater, M Palacios, Juan Larraín. 2021. [http://www.xenbase.org/literature/article.do?articleId=57974&method=display]
** ''In Vivo'' Time-Lapse Imaging and Analysis of Dendritic Structural Plasticity in ''Xenopus laevis'' Tadpoles. Hai-Yun He, Chih-Yang Lin and Hollis Cline. 2021. [doi: 10.1101/pdb.prot106781] [https://www.xenbase.org/literature/article.do?articleId=57985&method=display]

==='''''Fate mapping, Explants and Transplants'''''===
**Dissecting and Culturing Animal Cap Explants. Kevin S. Dingwell and James C. Smith. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097329.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Cranial Neural Crest Explants. Hélène Cousin and Dominique Alfandari. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097394.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Einsteck Transplants. Hélène Cousin. 2019 [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097352.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Deletion and Transplantation to Test Cell Fate Commitment in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097311.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Explant Culture in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097303.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Lineage Tracing and Fate Mapping in ''Xenopus'' Embryos. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097253.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Collagen-Embedded Tumor Transplantations in ''Xenopus laevis'' Tadpoles. Maureen Banach and Jacques Robert. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097584.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]
**Organ Culture of the ''Xenopus'' Tadpole Intestine. Atsuko Ishizuya-Oka. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097683.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

===CSHL Recipes===
**Embryo Lysis Buffer (''Xenopus''). (Recipe 1) CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/7/pdb.rec106542.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**''Xenopus'' Embryo Lysis Buffer. (Recipe 2). CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec104984.full?sid=ee051c86-4c27-43bb-b30d-6ab36902aaf0]
**Lysis Buffer for ''Xenopus'' (recipe3) CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105775.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**DNA Isolation Buffer. CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106443.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Lysis Buffer for Xenopus Hi-C. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106435.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**RIPA Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.rec105932.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Amphibian Serum-Free (ASF) Medium Supplemented with Fetal Bovine Serum (FBS). CSHL 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec105387.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''Xenopus'' Eye Culture Medium. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec105072.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (1×). CSHLP. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103861.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (20×). CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.rec104406.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Injection Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105957.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**TE Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105973.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Proteinase K Buffer for ''Xenopus'' Oocytes. CSHLP 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103374.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**PBT/PBT-Plus for ''Xenopus'' Oocytes. CSHL. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103366.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Energy Mix for ''Xenopus'' Egg Extracts. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103606.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**''Xenopus'' Oocyte Culture Medium (XOCM).CSHL 2018.[http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103382.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**PBT for ''Xenopus'' Oocyte FISH.CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103630.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Blocking Solution for ''Xenopus'' Oocytes. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.rec103945.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Aldehyde Fixative (MEMFA). CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.rec102731.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Staining Buffer for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102798.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Blocking Solution for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102772.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Embryonic ''Xenopus'' Culture Media (CM). CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102699.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Hybridization Buffer (HB) for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102780.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]

='''Cold Spring Harbor ''Xenopus'' Protocols''' 2007. Edited by Hazel Sive=
**Housing and Feeding of Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.top8.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Inducing Ovulation in Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4734.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis In Vitro Fertilization and Natural Mating Methods - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4737.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Egg Collection and In Vitro Fertilization of the Western Clawed Frog Xenopus tropicalis - Showell & Conlon [http://cshprotocols.cshlp.org/content/2009/9/pdb.prot5293.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5534.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolating Xenopus laevis Testes - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4735.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Dejellying Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4731.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Removing the Vitelline Membrane from Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4732.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.ip81.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Defolliculation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5535.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5536.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Animal Cap Isolation from Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4744.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis Keller Explants - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4749.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of RNA and Preparation of Secreted Proteins from Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5538.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Calibration of the Injection Volume for Microinjection of Xenopus Oocytes and Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5537.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of DNA from Red Blood Cells in Xenopus - Sive et al. [http://cshprotocols.cshlp.org/content/2012/1/pdb.prot067462.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Investigating Morphogenesis in Xenopus Embryos: Imaging Strategies, Processing, and Analysis - Kim & Davidson [http://cshprotocols.cshlp.org/content/2013/4/pdb.top073890.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Low-Magnification Live Imaging of Xenopus Embryos for Cell and Developmental Biology - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5425.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**High-Magnification In Vivo Imaging of Xenopus Embryos for Cell and Developmental Biology - Keiserman et al. [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5427.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Preparation of Fixed Xenopus Embryos for Confocal Imaging - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5426.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Whole-Mount Fluorescence Immunocytochemistry on Xenopus Embryos - Lee et al. [http://cshprotocols.cshlp.org/content/2008/2/pdb.prot4957.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Generation of Transgenic Xenopus laevis - Kroll & Amaya - [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4838.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4839.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4840.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**In Vivo Time-Lapse Imaging of Neuronal Development in Xenopus - Ruthazer et al. [http://cshprotocols.cshlp.org/content/2013/9/pdb.top077156.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Photoconversion for Tracking the Dynamics of Cell Movement in Xenopus laevis Embryos - Chernet et al. [http://cshprotocols.cshlp.org/content/2012/6/pdb.prot068502.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Single-Cell Electroporation in Xenopus - Liu & Haas [http://cshprotocols.cshlp.org/content/2011/9/pdb.top065607.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Imaging Axon Pathfinding in Xenopus In Vivo - Leung & Holt [http://cshprotocols.cshlp.org/content/2012/9/pdb.prot070003.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**A Versatile Protocol for mRNA Electroporation of Xenopus laevis Embryos - Chernet & Levin [http://cshprotocols.cshlp.org/content/2012/4/pdb.prot067694.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]

== '''''General Research Protocols''''' ==

=== '''''Animal Husbandry''''' ===
*obtain frogs and frog housing equipment [http://www.xenbase.org/other/obtain.do]
*Xenopus Express links [http://www.xenopus.com/links.htm] - Xenopus Express husbandry [http://www.xenopus.com/husbandry.htm]
*[[Xenopus tropicalis and Xenopus laevis environmental parameter standard operating procedure (Kroll lab)]]

=== '''''[[Lab Solutions and Reagents]]''''' (click each to view expanded content) ===
*[[culture media]]
*[[immunohistochemistry]]
*[[in situ hybridization]]
*[[fixatives]]
*[[DNA/RNA preparation]]
*[[embryo manipulation/dissection]]
*[[microinjection]]
*[[general buffers and salt solutions]]

=== '''''Generating Embryos''''' ===
*[[inducing egg laying via hCG injection (Vize lab)]]
*[[anesthesia, in vitro fertilization, and natural mating of Xenopus tropicalis (Conlon lab)]]
*[[benzocaine stock, 100x (Khokha lab)]]
*[[in vitro fertilization of Xenopus laevis (Conlon lab)]]
*[[high-salt solution for egg laying (Zorn lab/Ron Laskey)]]
*[[dejellying embryos (Sive et al. 2000)]]
*[[dejellying embryos (Zorn lab)]]

=== '''''Transgenesis''''' ===
*[[transgenesis in ''Xenopus laevis'' - adapted from Amaya et al 2001 (Conlon lab)]]
*[[tadpole tail sampling for genomic DNA (Conlon lab)]]
*''Production of transgenic ''Xenopus laevis'' by restriction enzyme mediated integration and nuclear transplantation.'' Amaya E, Kroll K. J Vis Exp. 2010 Aug 21;(42). [http://www.jove.com/video/2010/production-of-transgenic-xenopus-laevis-by-restriction-enzyme-mediated-integration-and-nuclear-transplantation]
*''A method for generating transgenic frog embryos.'' Ishibashi S, Kroll KL, Amaya E. Methods Mol Biol. 2008;461:447-66. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*''A method for generating transgenic frog embryos.'' Amaya E, Kroll KL. Methods Mol Biol. 1999;97:393-414. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*Optimization Strategies for the CRISPR–Cas9 Genome-Editing System. Vejnar et al 2016. [http://cshprotocols.cshlp.org/content/2016/10/pdb.top090894.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''in situ Hybridization''''' ===
*[[in situ hybridization, brief version (Harland lab)]]
*[[whole-mount in situ hybridization (Conlon lab)]]
**[[in situ checklist (Conlon lab)]]
*[[whole-mount in situ hybridization - LNA probes (Wheeler lab)]]
*fluorescent in situs and FCIS (Vize lab)
**[[Wholemount embryo FISH / Double FISH]]
**[[Flourescin Tyramide Synthesis]]
**[[Cy3 Tyramide Synthesis]]
**[[FCIS]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''Immunohistochemistry''''' ===
*[[wholemount antibody staining (CSH Protocols) (Wallingford lab)]]
*[[wholemount antibody staining - alkaline phosphatase detection (Conlon lab)]]
*[[wholemount antibody staining - adapted from Dan Weeks' protocol (Conlon lab)]]
*[[immunostaining sectioned embryos (Conlon lab)]]
*[[hydrochloric acid antigen retrieval (Zorn lab)]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''ChIP protocols''''' ===
*'''Chromatin immunoprecipitation analysis of Xenopus embryos.''', Methods Mol Biol. 2012;917:279-92. [http://www.xenbase.org/literature/article.do?method=display&articleId=45851] [http://www.ncbi.nlm.nih.gov/pubmed/22956095]
**Akkers RC, Jacobi UG, Veenstra GJ.
*'''Chromatin immunoprecipitation in early Xenopus laevis embryos.''', Dev Dyn. 2009 Jun;238(6):1422-32. [http://www.xenbase.org/literature/article.do?method=display&articleId=39423] [http://www.ncbi.nlm.nih.gov/pubmed/19334278]
**Blythe SA, Reid CD, Kessler DS, Klein PS.

=== '''''Histology''''' ===
*[[cryosectioning ''Xenopus'' embryos (Conlon lab)]]

=== '''''Embryo Staining Protocols (non in situ)''''' ===
*[[benzidine-peroxidase staining for blood (Conlon lab)]]
*[[benzidine-peroxidase staining for blood (Thomsen lab)]]
*[[apoptosis via TUNEL (Veenstra lab)]]
*[[TUNEL staining of whole Xenopus embryos - Harland protocol (Conlon lab)]]

=== '''''Immuno and Protein Protocols''''' ===
*[[immunoprecipitation (Stukenberg lab)]]
*[[immunofluorescence with biotinylated antibodies (Stukenberg lab)]]
*Purifying Polyclonal Antibodies using Affinity Columns/Chromatography
*[[Making an Affinity Column]]
*[[Running an Affinity Column]]
*[[whole embryo protein extraction with freon (Conlon lab)]]
*[[SDS-PAGE gels (Conlon lab)]]
*[[western blot protocol (Conlon lab)]]
*[[silver staining protein gels (Stukenberg lab)]]

=== '''''Nucleic Acid Protocols''''' ===
*RNA Isolation
**[[Preparation of RNA Using Proteinase K/LiCl (Sive et al. 2000)]]
**[[Preparation of RNA (In Vitro Transcription) (Sive et al. 2000)]]
*DNA Isolation
**[[Extraction of DNA from Single Embryos (Sive et al. 2000)]]
**[[Isolation of DNA from Red Blood Cells (Sive et al. 2000)]]
*RNaseH-mediated RNA depletion
**[[Optimized design of antisense oligomers for targeted rRNA depletion (Phelps et al 2020))]] [[https://doi.org/10.1093/nar/gkaa1072]]

=== '''''[[Oocyte Transfer Technique (Heasman/Wylie labs)]]''''' ===
*[[Part 1: Choosing Oligodeoxyribonucleotides (ODNs)]]
*[[Part 2: ODN Modification]]
*[[Part 3: Host Transfer Technique]]
*[[Part 4: Fertilization and Development]]

=== '''''Xenopus Oocyte and Egg Extracts''''' ===
*[[crude interphase egg extract (Shechter lab)]]
*[[isolation of chromatin from egg extract and histone recovery (Shechter lab)]]
*[[preparation of cycling egg extract (Shechter lab)]]
*[[cycling extracts, mike's protocol (Stukenberg lab)]]
*[[cycling extracts, sara's protocol (Stukenberg lab)]]
*[[CSF extract, mike's protocol (Stukenberg lab)]]
*[[CSF extract, sara's protocol (Stukenberg lab)]]
*[[assaying H1 kinase in extracts (Stukenberg lab)]]
*[[frozen egg extracts that retain spindle assembly activity (Takagi and Shimamoto, 2017)]]

=== '''''Xenopus Tissue Culture''''' ===
*[[tissue culture of ''Xenopus'' cell lines S3, XTC (Stukenberg lab)]]
*[[isolation of mitotic chromosomes from XTC cells (Stukenberg lab)]]
*[[in-vitro kinetochore-microtubule binding assays (Stukenberg lab)]]

Protocols

2025-05-30T18:15:22Z

Christina: /* Preparing HiChIP Libraries */

__TOC__

== '''''Books for Xenopus Research and Protocols''''' ==
*'''''Xenopus'' Protocols: Post-Genomic Approaches. ''' Hoppler and Vize, 2012 [http://xenbase.org/literature/book.do?method=display&bookId=262]
**expanded second edition with novel approaches inspired by ''X. tropicalis'' genome sequencing.

*'''The Laboratory ''Xenopus sp''.''' Green, 2010 [http://www.xenbase.org/literature/book.do?method=display&bookId=222]
**a highly detailed manual containing Xenopus husbandry, management, veterinary care, and frog and equipment vendor information

*'''''Xenopus'' Protocols: Cell Biology and Signal Transduction''' Liu (First edition), 2006 [http://www.xenbase.org/literature/book.do?method=display&bookId=206]
**step-by-step laboratory instructions, an introduction outlining the principles behind the technique, lists of the necessary equipment and reagents.

*'''Color Atlas of ''Xenopus laevis'' Histology''', Wiechmann and Wirsig-Wiechmann, 2003 [http://www.xenbase.org/literature/book.do?method=display&bookId=82]
**central source on the microscopic anatomy of cells, tissues, and major organs of Xenopus laevis.

*'''Early Development of ''Xenopus laevis'': A Laboratory Manual''', Sive, Grainger, and Harland, 2000 [http://www.xenbase.org/literature/book.do?method=display&bookId=22]
**comprehensive collection of protocols for the study of early development in Xenopus embryos

*'''Transgenic ''Xenopus'': Microinjection Methods and Developmental Neurobiology''', Seidman and Soreq, 1997 [http://www.xenbase.org/literature/book.do?method=display&bookId=203]
**referenced guide to the use of microinjected embryos studying the role and regulation of nervous system proteins during development.

*'''Atlas of ''Xenopus'' Development''', Bernardini, Prati, Bonetti, and Scari, 1999 [http://www.xenbase.org/literature/book.do?method=display&bookId=202]
**scanning, transmission, and light microscopy images of Xenopus embryonic development.

*'''Normal Table of ''Xenopus laevis'' (Daudin)''', Nieuwkoop and Faber (Third edition), 1994 [http://www.xenbase.org/literature/book.do?method=display&bookId=1]
**a systematic and chronological description of Xenopus laevis development.

*'''Xenopus laevis: Practical Uses in Cell and Molecular Biology, Volume 36''', Kay and Peng, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=204]
**detailed description of a wide range of uses for Xenopus laevis oocytes and embryos in cell and molecular biology.

*'''The early development of ''Xenopus laevis''. An atlas of the histology''', Hausen and Riebesell, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=124]
**detailed histological sections of Xenopus embryonic development

== '''''Xenopus Protocols and Video Demostrations: Online Resources''''' ==

=== '''Journal of Visualized Experiments (JOVE) - ''Xenopus'' embryo''' [http://www.jove.com/keyword/xenopus+embryo] - excellent video demonstrations and detailed protocols for a wide variety of lab protocols using ''Xenopus'' ===
**Methods for Tattooing ''Xenopus laevis'' with a Rotary Tattoo Machine- Super and Landino.[https://app.jove.com/t/67086/methods-for-tattooing-xenopus-laevis-with-a-rotary-tattoo-machine]
**Functional Evaluation of Olfactory Pathways in Living Xenopus Tadpoles - Terni et al. -[https://www.jove.com/video/58028/functional-evaluation-of-olfactory-pathways-in-living-xenopus-tadpoles]
**Obtaining Eggs from ''Xenopus laevi''s Females - Cross & Powers [http://www.jove.com/video/890/obtaining-eggs-from-xenopus-laevis-females]
**Microinjection of ''Xenopus laevis'' Oocytes - Cohen et al. - [http://www.jove.com/video/1106/microinjection-of-xenopus-laevis-oocytes]
**Fertilization of ''Xenopus'' oocytes, Host Transfer Method - Schneider et al. [http://www.jove.com/video/1864/fertilization-of-xenopus-oocytes-using-the-host-transfer-method]
**Tissue Determination Using Animal Cap Transplant (ACT) Assay in ''X. laevis'' - Viczian & Zuber [http://www.jove.com/video/1932/tissue-determination-using-animal-cap-transplant-act-assay-xenopus]
**Blastomere Explants to Test for Cell Fate Commitment - Grant et al. [http://www.jove.com/video/4458/blastomere-explants-to-test-for-cell-fate-commitment-during-embryonic]
**Transgenic ''Xenopus laevis'' by Restriction Enzyme Mediated Integration and Nuclear Transplantation - Amaya & Kroll [http://www.jove.com/video/2010/production-transgenic-xenopus-laevis-restriction-enzyme-mediated]
**Organizer and Animal Pole Explants from ''X. laevis'' Embryos and Cell Adhesion Assay - Ogata & Cho [http://www.jove.com/video/187/dissection-organizer-animal-pole-explants-from-xenopus-laevis-embryos]
**Plastic Embedding and Sectioning of ''X. laevis'' Embryos - Ogata1 et al. [http://www.jove.com/video/188/plastic-embedding-and-sectioning-of-xenopus-laevis-embryos]
**Visualizing RNA Localization in ''Xenopus'' Oocytes - Gagnon & Mowry [http://www.jove.com/video/1704/visualizing-rna-localization-in-xenopus-oocytes]
**Neural Explant Cultures from ''Xenopus laevis'' - Lowery et al. [http://www.jove.com/video/4232/neural-explant-cultures-from-xenopus-laevis]
**Translocation of Fluorescent Proteins in ''Xenopus'' Ectoderm in Response to Wnt Signaling - Itoh & Sokol [http://www.jove.com/video/2700/polarized-translocation-fluorescent-proteins-xenopus-ectoderm]
**Dissection, Culture, and Analysis of ''X. laevis'' Embryonic Retinal Tissue - McDonough et al. [http://www.jove.com/video/4377/dissection-culture-analysis-xenopus-laevis-embryonic-retinal]
**''X. tropicalis'' Egg Extracts to Identify Microtubule-associated RNAs - Sharp & Blower [http://www.jove.com/video/50434/production-xenopus-tropicalis-egg-extracts-to-identify-microtubule]
**Electroporation of Craniofacial Mesenchyme - Tabler & Liu [http://www.jove.com/video/3381/electroporation-of-craniofacial-mesenchyme]
**Electrophysiological Recording from ''Xenopus'' Nerve-muscle Co-cultures - Yazejian et al. [http://www.jove.com/video/50253/simultaneous-pre-post-synaptic-electrophysiological-recording-from]
**Single Cell Electroporation ''in vivo'' within the Intact Developing Brain - Hewapathirane & Haas - [http://www.jove.com/video/705/single-cell-electroporation-in-vivo-within-the-intact-developing-brain]
**Live-cell Imaging and Quantitative Analysis of Embryonic Epithelial Cells - Joshi & Davidson [http://www.jove.com/video/1949/live-cell-imaging-quantitative-analysis-embryonic-epithelial-cells]
**Preparation and Fractionation of ''Xenopus laevis'' Egg Extracts - Cross & Powers [http://www.jove.com/video/891/preparation-and-fractionation-of-xenopus-laevis-egg-extracts]
**In Vitro Nuclear Assembly Using Fractionated ''Xenopus'' Egg Extracts - Cross & Powers [http://www.jove.com/video/908/in-vitro-nuclear-assembly-using-fractionated-xenopus-egg-extracts]
**Study of the DNA Damage Checkpoint using ''Xenopus'' Egg Extracts - Willis et al. [http://www.jove.com/video/4449/study-of-the-dna-damage-checkpoint-using-xenopus-egg-extracts]
**Two Types of Assays for Detecting Frog Sperm Chemoattraction - Burnett et al. [http://www.jove.com/video/3407/two-types-of-assays-for-detecting-frog-sperm-chemoattraction]
**Comparative in vivo Study of gp96 Adjuvanticity in ''X. laevis'' - Nedelkovska et al. 2010. [http://www.jove.com/video/2026/comparative-vivo-study-gp96-adjuvanticity-frog-xenopus]
**Patch Clamp and Perfusion Techniques - Yang et al. [http://www.jove.com/video/2269/patch-clamp-perfusion-techniques-for-studying-ion-channels-expressed]
**Patch Clamp Recording of Ion Channels - Brown et al. [http://www.jove.com/video/936/patch-clamp-recording-of-ion-channels-expressed-in-xenopus-oocytes]
**Cation Transport in ''Xenopus'' Oocytes - Dürr et al.[http://www.jove.com/video/50201/measuring-cation-transport-nak-hk-atpase-xenopus-oocytes-atomic]
**Stem cell-like ''Xenopus'' Embryonic Explants to Study Early Neural Developmental Features In Vitro and In Vivo - BC.Durand [https://www.jove.com/video/53474/stem-cell-like-xenopus-embryonic-explants-to-study-early-neural]
**Dissection of ''Xenopus laevis'' Neural Crest for ''in vitro'' Explant Culture or in vivo Transplantation - Millet & Monsoro-Burq [https://www.jove.com/video/51118/dissection-xenopus-laevis-neural-crest-for-vitro-explant-culture-or]
**Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living ''Xenopus'' Tadpoles- Dao, Jones and Elul. 2019. [https://www.jove.com/video/60123/microinjection-dna-into-eyebuds-xenopus-laevis-embryos-imaging-gfp]
**Reconstitution Of β-catenin Degradation In Xenopus Egg Extract. Chen et al. 2020. [https://www.jove.com/video/51425/reconstitution-of-catenin-degradation-in-xenopus-egg-extract]

** ''Xenopus laevis'' Egg Extract Preparation and Live Imaging Methods for Visualizing Dynamic Cytoplasmic Organization. Xianrui Cheng and James Farrell. 2021. [https://www.jove.com/t/61923/xenopus-laevis-egg-extract-preparation-live-imaging-methods-for]

=='''Protocols published in non-CSHL Journals and from ''Xenopus'' labs -click to view-'''==
==='''''Xenopus Sperm cryopreservation'''''===
**'''Transitioning from a research protocol to a scalable applied pathway for Xenopus laevis sperm cryopreservation at a national stock center: The effect of cryoprotectants'''. Lucía Arregui, Jack C. Koch, Terrence R. Tiersch. 2023. JEZ-B molecular and Developmental Evolution[https://doi.org/10.1002/jez.b.23228]
**'''Cryopreservation of sperm of ''Xenopus laevis'' and ''Xenopus tropicalis''''' Michael G. Sargent, Timothy J. Mohun. 2005, Genesis [https://doi.org/10.1002/gene.20092]

==='''''Quantifying Transcription in Early Embryos'''''===
**'''Quantifying Nascent Transcription in Early Embryogenesis'''. Hui Chen. 2025, Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_9.]

==='''''Genotyping, Genome & DNA damage/repair'''''===
**'''Sex determination in ''Xenopus laevis'' via RT-PCR.''' Amin Eimanifar, John Aufderheide, Suzanne Z. Schneider, Henry Krueger, and Sean Gallagher 2019. "Development of an in vitro diagnostic method to determine the genotypic sex of Xenopus laevis". PeerJ January 1, 2019; 7 e6886. [[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6500372/]]
**'''Studying the DNA damage response in embryonic systems''' ElenaLo Furno, Bénédicte Recolin, Siemvan der Laan, Antoine Aze and Domenico Maiorano. 2021. Chapter Five in ''Methods in Enzymology'' Volume 661, 2021, Pages 95-120.[https://www.sciencedirect.com/science/article/abs/pii/S0076687921003591?via%3Dihub]
** '''Genotyping Tadpoles''' Susannah Rankin's Lab Protocol to determine gender via PCR. [[https://rankin.omrf.org/wp-content/uploads/sites/13/2013/02/tadpole-genotype.pdf]]

==='''''Chromosomes, DNA, Chromatin and Epigenetics'''''===
**'''Probing the Genomic Distribution of Histone Modifications in Egg Extract-Treated Sperm Nuclei.''' Florian Berger & Jérôme Jullien 2025. Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_1]

=== '''''Behavioral Assays''''' ===
**'''Precisely controlled visual stimulation to study experience-dependent neural plasticity in ''Xenopus'' tadpoles'''. Masaki Hiramoto and Hollis Cline. 2021. STAR Protocols | January 15, 2021. [[https://star-protocols.cell.com/protocols/361utm_campaign=STMJ_132371_CP_ALT&utm_medium=email&utm_acid=75932977&SIS_ID=&dgcid=STMJ_132371_CP_ALT&CMX_ID=&utm_in=DM121371&utm_source=AC_]]
=== '''''Cell cycle, Chromatin and Spindles''''' ===
**'''Immunochemical Detection of Modified Cytosine Species in Lampbrush Chromatin'''. Garry T. Morgan. 2021. In: Ruzov A., Gering M. (eds) DNA Modifications. Methods in Molecular Biology, vol 2198. Humana, New York, NY. [https://doi.org/10.1007/978-1-0716-0876-0_13]

=== '''''Electrophysiology''''' ===
**'''K+ Release Assay and K+ Measurement in Oocyte Assay'''. Hong Li. 2020. Bio-Protocol 10(21),Nov5,2020, [DOI:10.21769/BioProtoc.3802]
**'''A novel voltage-clamp/dye uptake assay reveals saturable transport of molecules through CALHM1 and connexin channels.''' Gaete et al 2021. J Gen Physiol. Nov 2; 152(11): e202012607. Published online 2020 Oct 19. doi: 10.1085/jgp.202012607. PMID:33074302.
**'''Electrophysiological Approaches for the Study of Ion Channel Function''' Guiying Cui, Kirsten A. Cottrill and Nael A. McCarty. 2021. Structure and Function of Membrane Proteins pp 49-67. [https://link.springer.com/protocol/10.1007%2F978-1-0716-1394-8_4]

=== '''''Xenopus oocyte cell free extract''''' ===
**'''DNA Damage Response in ''Xenopus laevis'' Cell-Free Extracts.''' Tomas Aparicio Casado and Jean Gautier 2021. In: Cell Cycle Checkpoints pp 103-144. Part of the Methods in Molecular Biology book series (MIMB, volume 2267). [https://link.springer.com/protocol/10.1007%2F978-1-0716-1217-0_8]
**'''Microfluidic encapsulation of ''Xenopus laevis'' cell-free extracts using hydrogel photolithography.''' Zachary Geisterfer, John Oakey, Jesse Gatlin. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100221 [[https://www.sciencedirect.com/science/article/pii/S2666166720302082?via%3Dihub]]
**''''Affinity Purification of Label-free Tubulins from ''Xenopus'' Egg Extracts''''. Sebastian Reusch, Abin Biswas, William Graham Hirst, SimoneReber. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100151. [[https://www.sciencedirect.com/science/article/pii/S2666166720301386?via%3Dihub]]
** '''Multi-purpose yolk-depleted embryo extracts.'''['''a freon-free protocol'''] Veenstra GJ, Destrée OH, Wolffe AP. Translation of maternal TATA-binding protein mRNA potentiates basal but not activated transcription in ''Xenopus'' embryos at the midblastula transition. Mol Cell Biol. 1999 Dec;19(12):7972-82. [[doi: 10.1128/MCB.19.12.7972]]. PMID: 10567523; PMCID: PMC84882.

=== '''''Xenopus oocyte expression system''''' ===
**'''The ''Xenopus'' Oocyte as an Expression System for Functional Analyses of Fish Aquaporins.''' François Chauvigné, Alba Ferré, Joan Cerdà. 2021. In: Dosch R. (eds) Germline Development in the Zebrafish. Methods in Molecular Biology, vol 2218. Humana, New York, NY. [[https://doi.org/10.1007/978-1-0716-0970-5_2]]

=== '''''Gene knock out/knock down and Gene Editing''''' ===
**'''Vivo-Morpholinos: a non-peptide transporter delivers Morpholinos into a wide array of mouse tissues'''. Morcos et al 2008. Biotechniques December 1, 2008; 45 (6): 613-4, 616, 618 passim. [https://www.xenbase.org/literature/article.do?articleId=58662&method=display] This technique has been used successfully in ''Xenopus'', See Ivanova et al 2021. XB-ART-58553, PubMed ID: 34676214. [https://www.xenbase.org/literature/article.do?articleId=58553&method=display]
**'''Morpholino Studies in ''Xenopus'' Brain Development''', Bestman and Cline. 2019, Brain Development pp 377-395, Part of the Methods in Molecular Biology book series (MIMB, volume 2047) [[https://link.springer.com/protocol/10.1007%2F978-1-4939-9732-9_21#enumeration]]
** '''Protocol for RNaseH-mediated RNA depletion''', see Supplemental file from "Optimized design of antisense oligomers for targeted rRNA depletion" by Wesley A. Phelps, Anne E. Carlson, Miler T. Lee, 2020. Nucleic Acids Research, gkaa1072, [[https://doi.org/10.1093/nar/gkaa1072]]
**'''Optimized design of antisense oligomers for targeted rRNA depletion'''. Wesley Phelps, Anne Carlson and Miler Lee. 2021. Nucleic Acids Res January 1, 2021; 49 (1): e5. [[https://academic.oup.com/nar/article/49/1/e5/5998392]] The Oligo-ASST Web tool is available at The Oligo-ASST Web tool is available at https://mtleelab.pitt.edu/oligo. Source code for the Web application and a command-line version of the program are available at https://github.com/MTLeeLab/oligo-asst.
===''RNA solubility, RNA interference (RNAi)''===
**'''A fractionation-based protocol to investigate RNA solubility phase transition during Xenopus oocyte maturation'''. Hyojeong Hwang, Meng Ma, Jing Yang 2024. STAR protocols. https://doi.org/10.1016/j.xpro.2023.102830 (OA in Cell Press- download PDF here: https://www.sciencedirect.com/science/article/pii/S2666166723007979?via%3Dihub)

**'''Application of the RNA interference technique to Xenopus embryos: Specific reduction of the β-catenin gene products by short double-stranded RNA produced by recombinant human Dicer''' Yuta Tagami, Takeshi Nishiyama, Michiko Omote, and Minoru Watanabe. 2021. Dev Growth Differ November 24, 2021;[https://onlinelibrary.wiley.com/doi/10.1111/dgd.12762]

=== '''''MassSpec & Proteomics''''' ===
** '''Quantitative Proteomics of ''Xenopus'' Embryos I, Sample Preparation'''. Meera Gupta, Matthew Sonnett, Lillia Ryazanova, Marc Presler, Martin Wühr . 2018. Methods Mol Biol 2018;1865:175-194. [[doi: 10.1007/978-1-4939-8784-9_13]]
**'''High-throughput transporter identification for small molecules in cell factories with validation using ''Xenopus'' expression assays.''' See ''Transportome-wide engineering of Saccharomyces cerevisiae,''. 2021. Wang et al. Metabolic Engineering.[https://www.sciencedirect.com/science/article/pii/S109671762100015X?via%3Dihub]
**'''Uptake Assays in Xenopus laevis Oocytes Using Liquid Chromatography-mass Spectrometry to Detect Transport Activity''' Jorgenson et al 2021. bio-protocol. [https://bio-protocol.org/e2581]
**'''Synthetic hyperacetylation of nucleosomal histones''' (protocol showing Synthetic histone acetylation inhibits DNA replication). Kajino et al 2021. RSC Chemical Biology [https://pubs.rsc.org/en/content/articlelanding/2020/CB/D0CB00029A]
** '''Xenopus laevis Oocytes Preparation for in-Cell EPR Spectroscopy''' (In-cell electron paramagnetic resonance (EPR) spectroscopy to determine the structure and dynamics of bio-macromolecules in the cell) Laura John and Malte Drescher. 2021. bio-protocol [https://bio-protocol.org/e2798]

== '''Cold Spring Harbor ''Xenopus'' Protocols''' Edited by Hazel Sive. published online 2017-2021. [http://cshprotocols.cshlp.org/search?fulltext=Xenopus&submit=yes&x=18&y=12&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic+introduction&tocsectionid=emerging+model+organisms&tocsectionid=product+protocol&tocsectionid=kit&tocsectionid=information+panel]==
Note: External links to CSHL press are provided but a subscription fee is required for access most CSHL protocols.
All CSHL protocol articles are Copyright 2018, 2019, 2020 or 2021 Cold Spring Harbor Laboratory Press- Request permission to re-use images/figures accordingly.

==='''''Husbandry and Obtaining Eggs and Embryos'''''===
**Raising and Maintaining ''Xenopus tropicalis'' from Tadpole to Adult. Maura Lane, Michael Slocum and Mustafa K Khokha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106369.long]
**Obtaining ''Xenopus tropicalis'' Eggs. Maura Lane, Emily K Mis and Mustafa K Khokha 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106344.long]
**Obtaining ''Xenopus tropicalis'' Embryos by Natural Mating. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106609.long]
**Obtaining ''Xenopus tropicalis'' Embryos by In Vitro Fertilization. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106351.long]
**Obtaining ''Xenopus laevis'' Eggs. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57590]
**Obtaining ''Xenopus laevis'' Embryos. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57598]
** Cryopreservation of ''Xenopus'' Sperm and In Vitro Fertilization Using Frozen Sperm Samples. Anna Nobel, Anita Abu-Daya, Matt Guille. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot107029.long]

=== '''''General Research Protocols''''' ===
**Microinjection of ''Xenopus tropicalis'' Embryos. Maura Lane , Emily K Mis and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107644.long]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Embryos. Jean-Pierre Saint-Jeannet. 2017 [http://cshprotocols.cshlp.org/content/2017/12/pdb.prot097287.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Oocytes. Diana Bauermeister and Tomas Pieler. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097014.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Fluorescence In Situ Hybridization of Cryosectioned ''Xenopus'' Oocytes. Christopher R. Neil and Kimberly Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.prot097030.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Whole-Mount Immunocytochemistry in ''Xenopus''. Michael W. Klymkowsky. 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.prot097295.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Microinjection of mRNAs and Oligonucleotides. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097261.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Microinjection of DNA Constructs into ''Xenopus'' Embryos for Gene Misexpression and cis-Regulatory Module Analysis. Yuuri Yasuoka and Masanori Taira. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097279.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Whole-Mount Immunofluorescence for Visualizing Endogenous Protein and Injected RNA in ''Xenopus'' Oocytes. Samantha P. Jeschonek and Kimberly L. Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097022.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Isolation of ''Xenopus'' Oocytes. Karen Newman, Tristan Aguero, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot095851.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Microinjection of ''Xenopus'' Oocytes. Tristan Aguero, Karen Newman, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot096974.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Oocyte Host-Transfer and Maternal mRNA Depletion Experiments in ''Xenopus''. Douglas W. Houston. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot096982.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Applying Tensile and Compressive Force to ''Xenopus'' Animal Cap Tissue. Georgina K. Goddard, Nawseen Tarannum, and Sarah Woolner. 2020. [http://cshprotocols.cshlp.org/content/early/2019/12/19/pdb.prot105551.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Isolation and Demembranation of ''Xenopus'' Sperm Nuclei. James W. Hazel and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099044.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Patch-Clamp and Perfusion Techniques to Study Ion Channels Expressed in ''Xenopus'' Oocytes. Guohui Zhang and Jianmin Cui. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot099051.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Heterologous Protein Expression in the ''Xenopus'' Oocyte. Jonathan S. Marchant. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096990.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Isolation and Analysis of ''Xenopus'' Germinal Vesicles. Garry T. Morgan. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096958.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**''Xenopus'' Tadpole Tissue Harvest. Matthew D. Patmann, Leena H. Shewade, Katelin A. Schneider, and Daniel R. Buchholz. 2017 [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot097675.full?sid=2def726a-9d33-480f-960a-2cb505467e1d].
**''In Vivo'' Transfection of Naked DNA into ''Xenopus'' Tadpole Tail Muscle. Lindsey Marshall, Fabrice Girardot, Barbara A. Demeneix, and Laurent Coen. 2017. [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot099366.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Cell Proliferation Analysis during ''Xenopus'' Metamorphosis: Using 5-Ethynyl-2-Deoxyuridine (EdU) to Stain Proliferating Intestinal Cells. Morihiro Okada and Yun-Bo Shi. 2017. [http://cshprotocols.cshlp.org/content/2017/9/pdb.prot097717.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''Genome Editing Protocols''''' ===
**Generating Nonmosaic Mutants in ''Xenopus'' Using CRISPR-Cas in Oocytes''' Sang-Wook Cha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot106989.long]
**CRISPR-Cas9 Mutagenesis in Xenopus tropicalis for Phenotypic Analyses in the F0 Generation and Beyond.Ira Blitz and Takuya Nakayama. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=58352]
** Modeling Human Genetic Disorders with CRISPR Technologies in ''Xenopus''. helen Willsey, Matt Guille, and Robert Grainger. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot106997.long]

=== ''''''Omics''''' ===
**Transcriptomics and Proteomics Methods for ''Xenopus'' Embryos and Tissues. Michael J. Gilchrist, Gert Jan C. Veenstra, and Ken W.Y. Cho. 2020. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/early/2019/11/26/pdb.top098350.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Mass Spectrometry-Based Absolute Quantification of Single ''Xenopus'' Embryo Proteomes. Rik G.H. Lindeboom, Arne H. Smits, Matteo Perino, Gert Jan C. Veenstra, and Michiel Vermeulen. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098376.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**INTACT Proteomics in ''Xenopus''. Lauren Wasson, Nirav M. Amin, and Frank L. Conlon. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098384.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
=== '''''Imaging''''' ===
**''Xenopus'' Tadpole Craniocardiac Imaging Using Optical Coherence Tomography. Engin Deniz, Emily K Mis, Maura Lane and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot105676.long]
**Live Imaging of Cytoskeletal Dynamics in Embryonic ''Xenopus laevis'' Growth Cones and Neural Crest Cells. Burcu Erdogan, Elizabeth Bearce, Laura Anne Lowery. 2020. [http://cshprotocols.cshlp.org/content/2021/4/pdb.prot104463.long]
**Imaging Methods in "Xenopus" Cells, Embryos, and Tadpoles. Lance A Davidson and Laura Anne Lowery. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.top105627.long]
**Imaging Structural and Functional Dynamics in ''Xenopus'' Neurons. Hollis Cline. 2021 [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.top106773.long]

=== '''''Genomes, Chromosomes, DNA, Chromatin and Epigenetics''''' ===
**''In Vitro'' Transcription Systems. Michael R. Green and Joseph Sambrook. [http://cshprotocols.cshlp.org/content/2020/1/pdb.top100750.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**ChIP-Sequencing in ''Xenopus'' Embryos. Saartje Hontelez, Ila van Kruijsbergen, and Gert Jan C. Veenstra. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097907.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Characterization in ''Xenopus laevis'' Cell-Free Egg Extracts and Embryos. Wei-Lin Wang, Takashi Onikubo, and David Shechter. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot099879.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Analysis of Chromatin Binding of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105577.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Analysis of Phosphorylation Status of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105569.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Assessing Ubiquitylation of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot104513.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Generating a Three-Dimensional Genome from ''Xenopus'' with Hi-C. Ian K. Quigley and Sven Heinz. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot098343.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**An RNA-Seq Protocol for Differential Expression Analysis. Nick D.L. Owens, Elena De Domenico, and Michael J. Gilchrist. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098368.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**DNase-seq to Study Chromatin Accessibility in Early ''Xenopus tropicalis'' Embryos. Jin Sun Cho, Ira L. Blitz, and Ken W.Y. Cho. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot098335.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Mapping Chromatin Features of ''Xenopus'' Embryos. George E. Gentsch and James C. Smith. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100263.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Reconstituting Nuclear and Chromosome Dynamics Using ''Xenopus'' Extracts. Susannah Rankin. 2019 [http://cshprotocols.cshlp.org/content/2019/3/pdb.top097105.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Extracts for Analysis of DNA Replication in a Nucleus-Free System. Justin Sparks and Johannes C. Walter. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.prot097154.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Endoplasmic Reticulum Network Formation with ''Xenopus'' Egg Extracts. Songyu Wang, Fabian B. Romano, and Tom A. Rapoport. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097204.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Chromosome Cohesion and Condensation in ''Xenopus'' Egg Extracts. Eulália M.L. da Silva and Susannah Rankin. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097121.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot104620.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Chromatin Immunoprecipitation for Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. 2018. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097725.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Endocrinology, Toxicology and Metamorphosis'''''===
**Methods for Investigating the Larval Period and Metamorphosis in ''Xenopus''. Daniel R. Buchholz and Yun-Bo Shi. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2018/10/pdb.top097667.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Frog Embryo Teratogenesis Assay—Xenopus (FETAX): Use in Alternative Preclinical Safety Assessment. Douglas J. Fort and Michael Mathis. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098319.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Following Endocrine-Disrupting Effects on Gene Expression in ''Xenopus laevis''. Petra Spirhanzlova, Michelle Leemans, Barbara A. Demeneix, and Jean-Baptiste Fini. 2019. Full-text link: [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot098301.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Larval Thymectomy of ''Xenopus laevis''. Sara Mashoof, Breanna Breaux, and Michael F. Criscitiello. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot099192.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Cell-free extracts, Cell-free systems''''' ===
**The Use of Cell-Free ''Xenopus'' Extracts to Investigate Cytoplasmic Events. Romain Gibeaux and Rebecca Heald. 2019.[[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2019/6/pdb.top097048.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Calculating the Degradation Rate of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot103481.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b].
**Special Considerations for Making Explants and Transplants with ''Xenopus tropicalis''. 2019. Marilyn Fisher and Robert M. Grainger. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]. Supplemental Material [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428/suppl/DC1].
**Filopodia-Like Structure Formation from ''Xenopus'' Egg Extracts. Helen M. Fox and Jennifer L. Gallop. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot100545.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Centromere and Kinetochore Assembly in ''Xenopus laevis'' Egg Extract. Julio C. Flores Servin and Aaron F. Straight. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot102509.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Dissecting Protein Complexes in Branching Microtubule Nucleation Using Meiotic Xenopus Egg Extracts. Jae-Geun Song and Sabine Petry. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot100958.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot097113.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Analysis of Mitotic Checkpoint Function in ''Xenopus'' Egg Extracts. Yinghui Mao. 2018 [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot099853.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Chemical Screening Using Cell-Free ''Xenopus'' Egg Extract. Matthew R. Broadus and Ethan Lee. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098277.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Robustly Cycling ''Xenopus laevis'' Cell-Free Extracts in Teflon Chambers. Jeremy B. Chang and James E. Ferrell Jr. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097212.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Microfluidic Encapsulation of Demembranated Sperm Nuclei in ''Xenopus'' Egg Extracts. John Oakey and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot102913.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Nucleus Assembly and Import in ''Xenopus laevis'' Egg Extract. Pan Chen and Daniel L. Levy. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097196.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Assembly of Spindles and Asters in ''Xenopus'' Egg Extracts. Christine M. Field and Timothy J. Mitchison. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099796.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Preparation of Cellular Extracts from ''Xenopus'' Eggs and Embryos. Matthew C. Good and Rebecca Heald. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097055.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Using the ''Xenopus'' Oocyte Toolbox. Kim L. Mowry. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/23/pdb.top095844.long]
**The Use of ''Xenopus'' for Cell Biology Applications. Anna Philpott. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57973]

=== '''''Immunobiology''''' ===
**Cryosectioning and Immunostaining of ''Xenopus'' Embryonic Tissues. Olga Ossipova and Sergei Y Sokol. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107151.long]
**Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105585.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Purifying Antibodies Raised against ''Xenopus'' Peptides. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105619.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Assessing the Immune Response When Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105593.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Lymphocyte Deficiency Induced by Sublethal Irradiation in ''Xenopus''. Louise A. Rollins-Smith and Jacques Robert. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097626.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de].
**Skin Grafting in ''Xenopus laevis'': A Technique for Assessing Development and Immunological Disparity. Yumi Izutsu. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099788.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Adoptive Transfer of Fluorescently Labeled Immune Cells in ''Xenopus''. Kun Hyoe Rhoo and Jacques Robert. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot097592.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Assessing Antibody Responses to Pathogens or Model Antigens in ''Xenopus'' by Enzyme-Linked Immunosorbent Assay (ELISA). Francisco De Jesús Andino and Jacques Robert. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099234.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''In Vivo'' Assessment of Neural Precursor Cell Cycle Kinetics in the Amphibian Retina. Morgane Locker and Muriel Perron2019. [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184], Supplemental Material [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536/suppl/DC1]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/search?hits=10&submit=yes&submit=Go&sortspec=date&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic%20introduction&tocsectionid=emerging%20model%20organisms&tocsectionid=product%20protocol&tocsectionid=kit&tocsectionid=information%20panel&format=standard&y=12&x=18&fulltext=Xenopus&FIRSTINDEX=60]
**Elicitation of Xenopus laevis Tadpole and Adult Frog Peritoneal Leukocytes. Leon Grayfer. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097642.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

==='''''Assessing Behaviour and Behavioural Phenotypes'''''===
**Schooling in Xenopus laevis Tadpoles as a Way to Assess Their Neural Development. Virgillio Lopez III, Arseny Khakhalin and CArlos Aizenman. 2021. [http://cshprotocols.cshlp.org/content/2021/5/pdb.prot106906]

==='''''Neurobiology, Electrophysiology and Tissue Regeneration'''''===
**Tetrode Recording in the ''Xenopus laevis'' Visual System Using Multichannel Glass Electrodes.M Hiramoto and Hollis Cline. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57786]
**Electrophysiological Approaches to Studying Normal and Abnormal Retinotectal Circuit Development in the ''Xenopus'' Tadpole. Kara Pratt. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57785]
**Making ''In Situ'' Whole-Cell Patch-Clamp Recordings from ''Xenopus laevis'' Tadpole Neurons. WC Li. 2021. [http://www.xenbase.org/literature/article.do?articleId=57784&method=display]
**Analysis of Visual Collision Avoidance in ''Xenopus'' Tadpoles. Arseny Khakhalin. 2020 [http://www.xenbase.org/literature/article.do?method=display&articleId=57593]
**''Ex Vivo'' Eye Tissue Culture Methods for ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101535.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Methods for Examining Lens Regeneration in ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101527.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Tracing Central Nervous System Axon Regeneration in ''Xenopus''. Kurt M. Gibbs and Ben G. Szaro. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101030.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Cell Transplantation as a Method to Investigate Spinal Cord Regeneration in Regenerative and Nonregenerative ''Xenopus'' Stages. Emilio E. Méndez-Olivos and Juan Larraín. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101006.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Infrared Laser-Mediated Gene Induction at the Single-Cell Level in the Regenerating Tail of ''Xenopus laevis'' Tadpoles. Riho Hasugata, Shinichi Hayashi, Aiko Kawasumi-Kita, Joe Sakamoto, Yasuhiro Kamei, and Hitoshi Yokoyama. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101014.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Rod-Specific Ablation Using the Nitroreductase/Metronidazole System to Investigate Regeneration in ''Xenopus''. Reyna I. Martinez-De Luna and Michael E. Zuber. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot100974.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Studies of Limb Regeneration in Larval ''Xenopus''. Anthony L. Mescher and Anton W. Neff. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100990.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864].
**Bulk Electroporation-Mediated Gene Transfer into Xenopus Tadpole Brain. Cristina Sáenz de Miera, Ethan Parr, and Robert J. Denver. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691.full?sid=d5693f80-e850-417d-a254-c0574571010e] . Supplemental Material [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691/suppl/DC1].
**Inverse Drug Screening of Bioelectric Signaling and Neurotransmitter Roles: Illustrated Using a ''Xenopus'' Tail Regeneration Assay. Kelly G. Sullivan and Michael Levin. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot099937.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Neurophysiological and Behavioral Analysis in ''Xenopus''. Ben Szaro. 2021. (Electrophysiology protocols for studies of neural circuitry in the developing optic tectum and spinal cord, vocalizations, and locomotory behavior).
[http://www.xenbase.org/literature/article.do?articleId=57966&method=display]
**Electrophysiological Recording for Study of ''Xenopus'' Retinotectal Circuitry. Y Luo , W Shen, and Hollis Cline. 2021. [http://www.xenbase.org/literature/article.do?articleId=57968&method=display]
**Bulk Dye Loading for In Vivo Calcium Imaging of Visual Responses in Populations of ''Xenopus'' Tectal Neurons. PW Hogg and K Haas. 2021. [http://www.xenbase.org/literature/article.do?method=display&articleId=57972]
** ''Xenopus'', a Model to Study Wound Healing and Regeneration: Experimental Approaches. Paula Slater, M Palacios, Juan Larraín. 2021. [http://www.xenbase.org/literature/article.do?articleId=57974&method=display]
** ''In Vivo'' Time-Lapse Imaging and Analysis of Dendritic Structural Plasticity in ''Xenopus laevis'' Tadpoles. Hai-Yun He, Chih-Yang Lin and Hollis Cline. 2021. [doi: 10.1101/pdb.prot106781] [https://www.xenbase.org/literature/article.do?articleId=57985&method=display]

==='''''Fate mapping, Explants and Transplants'''''===
**Dissecting and Culturing Animal Cap Explants. Kevin S. Dingwell and James C. Smith. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097329.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Cranial Neural Crest Explants. Hélène Cousin and Dominique Alfandari. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097394.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Einsteck Transplants. Hélène Cousin. 2019 [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097352.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Deletion and Transplantation to Test Cell Fate Commitment in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097311.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Explant Culture in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097303.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Lineage Tracing and Fate Mapping in ''Xenopus'' Embryos. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097253.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Collagen-Embedded Tumor Transplantations in ''Xenopus laevis'' Tadpoles. Maureen Banach and Jacques Robert. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097584.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]
**Organ Culture of the ''Xenopus'' Tadpole Intestine. Atsuko Ishizuya-Oka. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097683.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

===CSHL Recipes===
**Embryo Lysis Buffer (''Xenopus''). (Recipe 1) CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/7/pdb.rec106542.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**''Xenopus'' Embryo Lysis Buffer. (Recipe 2). CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec104984.full?sid=ee051c86-4c27-43bb-b30d-6ab36902aaf0]
**Lysis Buffer for ''Xenopus'' (recipe3) CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105775.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**DNA Isolation Buffer. CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106443.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Lysis Buffer for Xenopus Hi-C. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106435.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**RIPA Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.rec105932.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Amphibian Serum-Free (ASF) Medium Supplemented with Fetal Bovine Serum (FBS). CSHL 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec105387.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''Xenopus'' Eye Culture Medium. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec105072.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (1×). CSHLP. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103861.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (20×). CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.rec104406.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Injection Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105957.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**TE Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105973.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Proteinase K Buffer for ''Xenopus'' Oocytes. CSHLP 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103374.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**PBT/PBT-Plus for ''Xenopus'' Oocytes. CSHL. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103366.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Energy Mix for ''Xenopus'' Egg Extracts. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103606.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**''Xenopus'' Oocyte Culture Medium (XOCM).CSHL 2018.[http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103382.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**PBT for ''Xenopus'' Oocyte FISH.CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103630.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Blocking Solution for ''Xenopus'' Oocytes. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.rec103945.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Aldehyde Fixative (MEMFA). CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.rec102731.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Staining Buffer for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102798.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Blocking Solution for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102772.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Embryonic ''Xenopus'' Culture Media (CM). CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102699.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Hybridization Buffer (HB) for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102780.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]

='''Cold Spring Harbor ''Xenopus'' Protocols''' 2007. Edited by Hazel Sive=
**Housing and Feeding of Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.top8.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Inducing Ovulation in Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4734.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis In Vitro Fertilization and Natural Mating Methods - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4737.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Egg Collection and In Vitro Fertilization of the Western Clawed Frog Xenopus tropicalis - Showell & Conlon [http://cshprotocols.cshlp.org/content/2009/9/pdb.prot5293.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5534.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolating Xenopus laevis Testes - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4735.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Dejellying Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4731.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Removing the Vitelline Membrane from Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4732.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.ip81.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Defolliculation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5535.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5536.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Animal Cap Isolation from Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4744.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis Keller Explants - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4749.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of RNA and Preparation of Secreted Proteins from Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5538.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Calibration of the Injection Volume for Microinjection of Xenopus Oocytes and Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5537.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of DNA from Red Blood Cells in Xenopus - Sive et al. [http://cshprotocols.cshlp.org/content/2012/1/pdb.prot067462.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Investigating Morphogenesis in Xenopus Embryos: Imaging Strategies, Processing, and Analysis - Kim & Davidson [http://cshprotocols.cshlp.org/content/2013/4/pdb.top073890.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Low-Magnification Live Imaging of Xenopus Embryos for Cell and Developmental Biology - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5425.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**High-Magnification In Vivo Imaging of Xenopus Embryos for Cell and Developmental Biology - Keiserman et al. [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5427.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Preparation of Fixed Xenopus Embryos for Confocal Imaging - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5426.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Whole-Mount Fluorescence Immunocytochemistry on Xenopus Embryos - Lee et al. [http://cshprotocols.cshlp.org/content/2008/2/pdb.prot4957.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Generation of Transgenic Xenopus laevis - Kroll & Amaya - [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4838.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4839.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4840.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**In Vivo Time-Lapse Imaging of Neuronal Development in Xenopus - Ruthazer et al. [http://cshprotocols.cshlp.org/content/2013/9/pdb.top077156.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Photoconversion for Tracking the Dynamics of Cell Movement in Xenopus laevis Embryos - Chernet et al. [http://cshprotocols.cshlp.org/content/2012/6/pdb.prot068502.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Single-Cell Electroporation in Xenopus - Liu & Haas [http://cshprotocols.cshlp.org/content/2011/9/pdb.top065607.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Imaging Axon Pathfinding in Xenopus In Vivo - Leung & Holt [http://cshprotocols.cshlp.org/content/2012/9/pdb.prot070003.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**A Versatile Protocol for mRNA Electroporation of Xenopus laevis Embryos - Chernet & Levin [http://cshprotocols.cshlp.org/content/2012/4/pdb.prot067694.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]

== '''''General Research Protocols''''' ==

=== '''''Animal Husbandry''''' ===
*obtain frogs and frog housing equipment [http://www.xenbase.org/other/obtain.do]
*Xenopus Express links [http://www.xenopus.com/links.htm] - Xenopus Express husbandry [http://www.xenopus.com/husbandry.htm]
*[[Xenopus tropicalis and Xenopus laevis environmental parameter standard operating procedure (Kroll lab)]]

=== '''''[[Lab Solutions and Reagents]]''''' (click each to view expanded content) ===
*[[culture media]]
*[[immunohistochemistry]]
*[[in situ hybridization]]
*[[fixatives]]
*[[DNA/RNA preparation]]
*[[embryo manipulation/dissection]]
*[[microinjection]]
*[[general buffers and salt solutions]]

=== '''''Generating Embryos''''' ===
*[[inducing egg laying via hCG injection (Vize lab)]]
*[[anesthesia, in vitro fertilization, and natural mating of Xenopus tropicalis (Conlon lab)]]
*[[benzocaine stock, 100x (Khokha lab)]]
*[[in vitro fertilization of Xenopus laevis (Conlon lab)]]
*[[high-salt solution for egg laying (Zorn lab/Ron Laskey)]]
*[[dejellying embryos (Sive et al. 2000)]]
*[[dejellying embryos (Zorn lab)]]

=== '''''Transgenesis''''' ===
*[[transgenesis in ''Xenopus laevis'' - adapted from Amaya et al 2001 (Conlon lab)]]
*[[tadpole tail sampling for genomic DNA (Conlon lab)]]
*''Production of transgenic ''Xenopus laevis'' by restriction enzyme mediated integration and nuclear transplantation.'' Amaya E, Kroll K. J Vis Exp. 2010 Aug 21;(42). [http://www.jove.com/video/2010/production-of-transgenic-xenopus-laevis-by-restriction-enzyme-mediated-integration-and-nuclear-transplantation]
*''A method for generating transgenic frog embryos.'' Ishibashi S, Kroll KL, Amaya E. Methods Mol Biol. 2008;461:447-66. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*''A method for generating transgenic frog embryos.'' Amaya E, Kroll KL. Methods Mol Biol. 1999;97:393-414. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*Optimization Strategies for the CRISPR–Cas9 Genome-Editing System. Vejnar et al 2016. [http://cshprotocols.cshlp.org/content/2016/10/pdb.top090894.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''in situ Hybridization''''' ===
*[[in situ hybridization, brief version (Harland lab)]]
*[[whole-mount in situ hybridization (Conlon lab)]]
**[[in situ checklist (Conlon lab)]]
*[[whole-mount in situ hybridization - LNA probes (Wheeler lab)]]
*fluorescent in situs and FCIS (Vize lab)
**[[Wholemount embryo FISH / Double FISH]]
**[[Flourescin Tyramide Synthesis]]
**[[Cy3 Tyramide Synthesis]]
**[[FCIS]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''Immunohistochemistry''''' ===
*[[wholemount antibody staining (CSH Protocols) (Wallingford lab)]]
*[[wholemount antibody staining - alkaline phosphatase detection (Conlon lab)]]
*[[wholemount antibody staining - adapted from Dan Weeks' protocol (Conlon lab)]]
*[[immunostaining sectioned embryos (Conlon lab)]]
*[[hydrochloric acid antigen retrieval (Zorn lab)]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''ChIP protocols''''' ===
*'''Chromatin immunoprecipitation analysis of Xenopus embryos.''', Methods Mol Biol. 2012;917:279-92. [http://www.xenbase.org/literature/article.do?method=display&articleId=45851] [http://www.ncbi.nlm.nih.gov/pubmed/22956095]
**Akkers RC, Jacobi UG, Veenstra GJ.
*'''Chromatin immunoprecipitation in early Xenopus laevis embryos.''', Dev Dyn. 2009 Jun;238(6):1422-32. [http://www.xenbase.org/literature/article.do?method=display&articleId=39423] [http://www.ncbi.nlm.nih.gov/pubmed/19334278]
**Blythe SA, Reid CD, Kessler DS, Klein PS.

=== '''''Histology''''' ===
*[[cryosectioning ''Xenopus'' embryos (Conlon lab)]]

=== '''''Embryo Staining Protocols (non in situ)''''' ===
*[[benzidine-peroxidase staining for blood (Conlon lab)]]
*[[benzidine-peroxidase staining for blood (Thomsen lab)]]
*[[apoptosis via TUNEL (Veenstra lab)]]
*[[TUNEL staining of whole Xenopus embryos - Harland protocol (Conlon lab)]]

=== '''''Immuno and Protein Protocols''''' ===
*[[immunoprecipitation (Stukenberg lab)]]
*[[immunofluorescence with biotinylated antibodies (Stukenberg lab)]]
*Purifying Polyclonal Antibodies using Affinity Columns/Chromatography
*[[Making an Affinity Column]]
*[[Running an Affinity Column]]
*[[whole embryo protein extraction with freon (Conlon lab)]]
*[[SDS-PAGE gels (Conlon lab)]]
*[[western blot protocol (Conlon lab)]]
*[[silver staining protein gels (Stukenberg lab)]]

=== '''''Nucleic Acid Protocols''''' ===
*RNA Isolation
**[[Preparation of RNA Using Proteinase K/LiCl (Sive et al. 2000)]]
**[[Preparation of RNA (In Vitro Transcription) (Sive et al. 2000)]]
*DNA Isolation
**[[Extraction of DNA from Single Embryos (Sive et al. 2000)]]
**[[Isolation of DNA from Red Blood Cells (Sive et al. 2000)]]
*RNaseH-mediated RNA depletion
**[[Optimized design of antisense oligomers for targeted rRNA depletion (Phelps et al 2020))]] [[https://doi.org/10.1093/nar/gkaa1072]]

=== '''''[[Oocyte Transfer Technique (Heasman/Wylie labs)]]''''' ===
*[[Part 1: Choosing Oligodeoxyribonucleotides (ODNs)]]
*[[Part 2: ODN Modification]]
*[[Part 3: Host Transfer Technique]]
*[[Part 4: Fertilization and Development]]

=== '''''Xenopus Oocyte and Egg Extracts''''' ===
*[[crude interphase egg extract (Shechter lab)]]
*[[isolation of chromatin from egg extract and histone recovery (Shechter lab)]]
*[[preparation of cycling egg extract (Shechter lab)]]
*[[cycling extracts, mike's protocol (Stukenberg lab)]]
*[[cycling extracts, sara's protocol (Stukenberg lab)]]
*[[CSF extract, mike's protocol (Stukenberg lab)]]
*[[CSF extract, sara's protocol (Stukenberg lab)]]
*[[assaying H1 kinase in extracts (Stukenberg lab)]]
*[[frozen egg extracts that retain spindle assembly activity (Takagi and Shimamoto, 2017)]]

=== '''''Xenopus Tissue Culture''''' ===
*[[tissue culture of ''Xenopus'' cell lines S3, XTC (Stukenberg lab)]]
*[[isolation of mitotic chromosomes from XTC cells (Stukenberg lab)]]
*[[in-vitro kinetochore-microtubule binding assays (Stukenberg lab)]]

Protocols

2025-05-30T18:14:42Z

Christina: /* Genotyping, Genome & DNA damage/repair */

__TOC__

== '''''Books for Xenopus Research and Protocols''''' ==
*'''''Xenopus'' Protocols: Post-Genomic Approaches. ''' Hoppler and Vize, 2012 [http://xenbase.org/literature/book.do?method=display&bookId=262]
**expanded second edition with novel approaches inspired by ''X. tropicalis'' genome sequencing.

*'''The Laboratory ''Xenopus sp''.''' Green, 2010 [http://www.xenbase.org/literature/book.do?method=display&bookId=222]
**a highly detailed manual containing Xenopus husbandry, management, veterinary care, and frog and equipment vendor information

*'''''Xenopus'' Protocols: Cell Biology and Signal Transduction''' Liu (First edition), 2006 [http://www.xenbase.org/literature/book.do?method=display&bookId=206]
**step-by-step laboratory instructions, an introduction outlining the principles behind the technique, lists of the necessary equipment and reagents.

*'''Color Atlas of ''Xenopus laevis'' Histology''', Wiechmann and Wirsig-Wiechmann, 2003 [http://www.xenbase.org/literature/book.do?method=display&bookId=82]
**central source on the microscopic anatomy of cells, tissues, and major organs of Xenopus laevis.

*'''Early Development of ''Xenopus laevis'': A Laboratory Manual''', Sive, Grainger, and Harland, 2000 [http://www.xenbase.org/literature/book.do?method=display&bookId=22]
**comprehensive collection of protocols for the study of early development in Xenopus embryos

*'''Transgenic ''Xenopus'': Microinjection Methods and Developmental Neurobiology''', Seidman and Soreq, 1997 [http://www.xenbase.org/literature/book.do?method=display&bookId=203]
**referenced guide to the use of microinjected embryos studying the role and regulation of nervous system proteins during development.

*'''Atlas of ''Xenopus'' Development''', Bernardini, Prati, Bonetti, and Scari, 1999 [http://www.xenbase.org/literature/book.do?method=display&bookId=202]
**scanning, transmission, and light microscopy images of Xenopus embryonic development.

*'''Normal Table of ''Xenopus laevis'' (Daudin)''', Nieuwkoop and Faber (Third edition), 1994 [http://www.xenbase.org/literature/book.do?method=display&bookId=1]
**a systematic and chronological description of Xenopus laevis development.

*'''Xenopus laevis: Practical Uses in Cell and Molecular Biology, Volume 36''', Kay and Peng, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=204]
**detailed description of a wide range of uses for Xenopus laevis oocytes and embryos in cell and molecular biology.

*'''The early development of ''Xenopus laevis''. An atlas of the histology''', Hausen and Riebesell, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=124]
**detailed histological sections of Xenopus embryonic development

== '''''Xenopus Protocols and Video Demostrations: Online Resources''''' ==

=== '''Journal of Visualized Experiments (JOVE) - ''Xenopus'' embryo''' [http://www.jove.com/keyword/xenopus+embryo] - excellent video demonstrations and detailed protocols for a wide variety of lab protocols using ''Xenopus'' ===
**Methods for Tattooing ''Xenopus laevis'' with a Rotary Tattoo Machine- Super and Landino.[https://app.jove.com/t/67086/methods-for-tattooing-xenopus-laevis-with-a-rotary-tattoo-machine]
**Functional Evaluation of Olfactory Pathways in Living Xenopus Tadpoles - Terni et al. -[https://www.jove.com/video/58028/functional-evaluation-of-olfactory-pathways-in-living-xenopus-tadpoles]
**Obtaining Eggs from ''Xenopus laevi''s Females - Cross & Powers [http://www.jove.com/video/890/obtaining-eggs-from-xenopus-laevis-females]
**Microinjection of ''Xenopus laevis'' Oocytes - Cohen et al. - [http://www.jove.com/video/1106/microinjection-of-xenopus-laevis-oocytes]
**Fertilization of ''Xenopus'' oocytes, Host Transfer Method - Schneider et al. [http://www.jove.com/video/1864/fertilization-of-xenopus-oocytes-using-the-host-transfer-method]
**Tissue Determination Using Animal Cap Transplant (ACT) Assay in ''X. laevis'' - Viczian & Zuber [http://www.jove.com/video/1932/tissue-determination-using-animal-cap-transplant-act-assay-xenopus]
**Blastomere Explants to Test for Cell Fate Commitment - Grant et al. [http://www.jove.com/video/4458/blastomere-explants-to-test-for-cell-fate-commitment-during-embryonic]
**Transgenic ''Xenopus laevis'' by Restriction Enzyme Mediated Integration and Nuclear Transplantation - Amaya & Kroll [http://www.jove.com/video/2010/production-transgenic-xenopus-laevis-restriction-enzyme-mediated]
**Organizer and Animal Pole Explants from ''X. laevis'' Embryos and Cell Adhesion Assay - Ogata & Cho [http://www.jove.com/video/187/dissection-organizer-animal-pole-explants-from-xenopus-laevis-embryos]
**Plastic Embedding and Sectioning of ''X. laevis'' Embryos - Ogata1 et al. [http://www.jove.com/video/188/plastic-embedding-and-sectioning-of-xenopus-laevis-embryos]
**Visualizing RNA Localization in ''Xenopus'' Oocytes - Gagnon & Mowry [http://www.jove.com/video/1704/visualizing-rna-localization-in-xenopus-oocytes]
**Neural Explant Cultures from ''Xenopus laevis'' - Lowery et al. [http://www.jove.com/video/4232/neural-explant-cultures-from-xenopus-laevis]
**Translocation of Fluorescent Proteins in ''Xenopus'' Ectoderm in Response to Wnt Signaling - Itoh & Sokol [http://www.jove.com/video/2700/polarized-translocation-fluorescent-proteins-xenopus-ectoderm]
**Dissection, Culture, and Analysis of ''X. laevis'' Embryonic Retinal Tissue - McDonough et al. [http://www.jove.com/video/4377/dissection-culture-analysis-xenopus-laevis-embryonic-retinal]
**''X. tropicalis'' Egg Extracts to Identify Microtubule-associated RNAs - Sharp & Blower [http://www.jove.com/video/50434/production-xenopus-tropicalis-egg-extracts-to-identify-microtubule]
**Electroporation of Craniofacial Mesenchyme - Tabler & Liu [http://www.jove.com/video/3381/electroporation-of-craniofacial-mesenchyme]
**Electrophysiological Recording from ''Xenopus'' Nerve-muscle Co-cultures - Yazejian et al. [http://www.jove.com/video/50253/simultaneous-pre-post-synaptic-electrophysiological-recording-from]
**Single Cell Electroporation ''in vivo'' within the Intact Developing Brain - Hewapathirane & Haas - [http://www.jove.com/video/705/single-cell-electroporation-in-vivo-within-the-intact-developing-brain]
**Live-cell Imaging and Quantitative Analysis of Embryonic Epithelial Cells - Joshi & Davidson [http://www.jove.com/video/1949/live-cell-imaging-quantitative-analysis-embryonic-epithelial-cells]
**Preparation and Fractionation of ''Xenopus laevis'' Egg Extracts - Cross & Powers [http://www.jove.com/video/891/preparation-and-fractionation-of-xenopus-laevis-egg-extracts]
**In Vitro Nuclear Assembly Using Fractionated ''Xenopus'' Egg Extracts - Cross & Powers [http://www.jove.com/video/908/in-vitro-nuclear-assembly-using-fractionated-xenopus-egg-extracts]
**Study of the DNA Damage Checkpoint using ''Xenopus'' Egg Extracts - Willis et al. [http://www.jove.com/video/4449/study-of-the-dna-damage-checkpoint-using-xenopus-egg-extracts]
**Two Types of Assays for Detecting Frog Sperm Chemoattraction - Burnett et al. [http://www.jove.com/video/3407/two-types-of-assays-for-detecting-frog-sperm-chemoattraction]
**Comparative in vivo Study of gp96 Adjuvanticity in ''X. laevis'' - Nedelkovska et al. 2010. [http://www.jove.com/video/2026/comparative-vivo-study-gp96-adjuvanticity-frog-xenopus]
**Patch Clamp and Perfusion Techniques - Yang et al. [http://www.jove.com/video/2269/patch-clamp-perfusion-techniques-for-studying-ion-channels-expressed]
**Patch Clamp Recording of Ion Channels - Brown et al. [http://www.jove.com/video/936/patch-clamp-recording-of-ion-channels-expressed-in-xenopus-oocytes]
**Cation Transport in ''Xenopus'' Oocytes - Dürr et al.[http://www.jove.com/video/50201/measuring-cation-transport-nak-hk-atpase-xenopus-oocytes-atomic]
**Stem cell-like ''Xenopus'' Embryonic Explants to Study Early Neural Developmental Features In Vitro and In Vivo - BC.Durand [https://www.jove.com/video/53474/stem-cell-like-xenopus-embryonic-explants-to-study-early-neural]
**Dissection of ''Xenopus laevis'' Neural Crest for ''in vitro'' Explant Culture or in vivo Transplantation - Millet & Monsoro-Burq [https://www.jove.com/video/51118/dissection-xenopus-laevis-neural-crest-for-vitro-explant-culture-or]
**Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living ''Xenopus'' Tadpoles- Dao, Jones and Elul. 2019. [https://www.jove.com/video/60123/microinjection-dna-into-eyebuds-xenopus-laevis-embryos-imaging-gfp]
**Reconstitution Of β-catenin Degradation In Xenopus Egg Extract. Chen et al. 2020. [https://www.jove.com/video/51425/reconstitution-of-catenin-degradation-in-xenopus-egg-extract]

** ''Xenopus laevis'' Egg Extract Preparation and Live Imaging Methods for Visualizing Dynamic Cytoplasmic Organization. Xianrui Cheng and James Farrell. 2021. [https://www.jove.com/t/61923/xenopus-laevis-egg-extract-preparation-live-imaging-methods-for]

=='''Protocols published in non-CSHL Journals and from ''Xenopus'' labs -click to view-'''==
==='''''Xenopus Sperm cryopreservation'''''===
**'''Transitioning from a research protocol to a scalable applied pathway for Xenopus laevis sperm cryopreservation at a national stock center: The effect of cryoprotectants'''. Lucía Arregui, Jack C. Koch, Terrence R. Tiersch. 2023. JEZ-B molecular and Developmental Evolution[https://doi.org/10.1002/jez.b.23228]
**'''Cryopreservation of sperm of ''Xenopus laevis'' and ''Xenopus tropicalis''''' Michael G. Sargent, Timothy J. Mohun. 2005, Genesis [https://doi.org/10.1002/gene.20092]

==='''''Quantifying Transcription in Early Embryos'''''===
**'''Quantifying Nascent Transcription in Early Embryogenesis'''. Hui Chen. 2025, Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_9.]

==='''''Genotyping, Genome & DNA damage/repair'''''===
**'''Sex determination in ''Xenopus laevis'' via RT-PCR.''' Amin Eimanifar, John Aufderheide, Suzanne Z. Schneider, Henry Krueger, and Sean Gallagher 2019. "Development of an in vitro diagnostic method to determine the genotypic sex of Xenopus laevis". PeerJ January 1, 2019; 7 e6886. [[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6500372/]]
**'''Studying the DNA damage response in embryonic systems''' ElenaLo Furno, Bénédicte Recolin, Siemvan der Laan, Antoine Aze and Domenico Maiorano. 2021. Chapter Five in ''Methods in Enzymology'' Volume 661, 2021, Pages 95-120.[https://www.sciencedirect.com/science/article/abs/pii/S0076687921003591?via%3Dihub]
** '''Genotyping Tadpoles''' Susannah Rankin's Lab Protocol to determine gender via PCR. [[https://rankin.omrf.org/wp-content/uploads/sites/13/2013/02/tadpole-genotype.pdf]]

==='''''Chromosomes, DNA, Chromatin and Epigenetics'''''===
**'''Probing the Genomic Distribution of Histone Modifications in Egg Extract-Treated Sperm Nuclei.''' Florian Berger & Jérôme Jullien 2025. Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_1]

=== '''''Behavioral Assays''''' ===
**'''Precisely controlled visual stimulation to study experience-dependent neural plasticity in ''Xenopus'' tadpoles'''. Masaki Hiramoto and Hollis Cline. 2021. STAR Protocols | January 15, 2021. [[https://star-protocols.cell.com/protocols/361utm_campaign=STMJ_132371_CP_ALT&utm_medium=email&utm_acid=75932977&SIS_ID=&dgcid=STMJ_132371_CP_ALT&CMX_ID=&utm_in=DM121371&utm_source=AC_]]
=== '''''Cell cycle, Chromatin and Spindles''''' ===
**'''Immunochemical Detection of Modified Cytosine Species in Lampbrush Chromatin'''. Garry T. Morgan. 2021. In: Ruzov A., Gering M. (eds) DNA Modifications. Methods in Molecular Biology, vol 2198. Humana, New York, NY. [https://doi.org/10.1007/978-1-0716-0876-0_13]

=== '''''Electrophysiology''''' ===
**'''K+ Release Assay and K+ Measurement in Oocyte Assay'''. Hong Li. 2020. Bio-Protocol 10(21),Nov5,2020, [DOI:10.21769/BioProtoc.3802]
**'''A novel voltage-clamp/dye uptake assay reveals saturable transport of molecules through CALHM1 and connexin channels.''' Gaete et al 2021. J Gen Physiol. Nov 2; 152(11): e202012607. Published online 2020 Oct 19. doi: 10.1085/jgp.202012607. PMID:33074302.
**'''Electrophysiological Approaches for the Study of Ion Channel Function''' Guiying Cui, Kirsten A. Cottrill and Nael A. McCarty. 2021. Structure and Function of Membrane Proteins pp 49-67. [https://link.springer.com/protocol/10.1007%2F978-1-0716-1394-8_4]

=== '''''Xenopus oocyte cell free extract''''' ===
**'''DNA Damage Response in ''Xenopus laevis'' Cell-Free Extracts.''' Tomas Aparicio Casado and Jean Gautier 2021. In: Cell Cycle Checkpoints pp 103-144. Part of the Methods in Molecular Biology book series (MIMB, volume 2267). [https://link.springer.com/protocol/10.1007%2F978-1-0716-1217-0_8]
**'''Microfluidic encapsulation of ''Xenopus laevis'' cell-free extracts using hydrogel photolithography.''' Zachary Geisterfer, John Oakey, Jesse Gatlin. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100221 [[https://www.sciencedirect.com/science/article/pii/S2666166720302082?via%3Dihub]]
**''''Affinity Purification of Label-free Tubulins from ''Xenopus'' Egg Extracts''''. Sebastian Reusch, Abin Biswas, William Graham Hirst, SimoneReber. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100151. [[https://www.sciencedirect.com/science/article/pii/S2666166720301386?via%3Dihub]]
** '''Multi-purpose yolk-depleted embryo extracts.'''['''a freon-free protocol'''] Veenstra GJ, Destrée OH, Wolffe AP. Translation of maternal TATA-binding protein mRNA potentiates basal but not activated transcription in ''Xenopus'' embryos at the midblastula transition. Mol Cell Biol. 1999 Dec;19(12):7972-82. [[doi: 10.1128/MCB.19.12.7972]]. PMID: 10567523; PMCID: PMC84882.

=== '''''Xenopus oocyte expression system''''' ===
**'''The ''Xenopus'' Oocyte as an Expression System for Functional Analyses of Fish Aquaporins.''' François Chauvigné, Alba Ferré, Joan Cerdà. 2021. In: Dosch R. (eds) Germline Development in the Zebrafish. Methods in Molecular Biology, vol 2218. Humana, New York, NY. [[https://doi.org/10.1007/978-1-0716-0970-5_2]]

=== '''''Gene knock out/knock down and Gene Editing''''' ===
**'''Vivo-Morpholinos: a non-peptide transporter delivers Morpholinos into a wide array of mouse tissues'''. Morcos et al 2008. Biotechniques December 1, 2008; 45 (6): 613-4, 616, 618 passim. [https://www.xenbase.org/literature/article.do?articleId=58662&method=display] This technique has been used successfully in ''Xenopus'', See Ivanova et al 2021. XB-ART-58553, PubMed ID: 34676214. [https://www.xenbase.org/literature/article.do?articleId=58553&method=display]
**'''Morpholino Studies in ''Xenopus'' Brain Development''', Bestman and Cline. 2019, Brain Development pp 377-395, Part of the Methods in Molecular Biology book series (MIMB, volume 2047) [[https://link.springer.com/protocol/10.1007%2F978-1-4939-9732-9_21#enumeration]]
** '''Protocol for RNaseH-mediated RNA depletion''', see Supplemental file from "Optimized design of antisense oligomers for targeted rRNA depletion" by Wesley A. Phelps, Anne E. Carlson, Miler T. Lee, 2020. Nucleic Acids Research, gkaa1072, [[https://doi.org/10.1093/nar/gkaa1072]]
**'''Optimized design of antisense oligomers for targeted rRNA depletion'''. Wesley Phelps, Anne Carlson and Miler Lee. 2021. Nucleic Acids Res January 1, 2021; 49 (1): e5. [[https://academic.oup.com/nar/article/49/1/e5/5998392]] The Oligo-ASST Web tool is available at The Oligo-ASST Web tool is available at https://mtleelab.pitt.edu/oligo. Source code for the Web application and a command-line version of the program are available at https://github.com/MTLeeLab/oligo-asst.
===''RNA solubility, RNA interference (RNAi)''===
**'''A fractionation-based protocol to investigate RNA solubility phase transition during Xenopus oocyte maturation'''. Hyojeong Hwang, Meng Ma, Jing Yang 2024. STAR protocols. https://doi.org/10.1016/j.xpro.2023.102830 (OA in Cell Press- download PDF here: https://www.sciencedirect.com/science/article/pii/S2666166723007979?via%3Dihub)

**'''Application of the RNA interference technique to Xenopus embryos: Specific reduction of the β-catenin gene products by short double-stranded RNA produced by recombinant human Dicer''' Yuta Tagami, Takeshi Nishiyama, Michiko Omote, and Minoru Watanabe. 2021. Dev Growth Differ November 24, 2021;[https://onlinelibrary.wiley.com/doi/10.1111/dgd.12762]

===''Preparing HiChIP Libraries''===
**'''HiChIP to Study 3D Genome Organization in Xenopus tropicalis Embryos.'''. Amina Hussein, Ira Blitz & Ken Cho. 2025. Methods Mol Biol Jan 01;2923:63-74. [https://doi: 10.1007/978-1-0716-4522-2_5.]

=== '''''MassSpec & Proteomics''''' ===
** '''Quantitative Proteomics of ''Xenopus'' Embryos I, Sample Preparation'''. Meera Gupta, Matthew Sonnett, Lillia Ryazanova, Marc Presler, Martin Wühr . 2018. Methods Mol Biol 2018;1865:175-194. [[doi: 10.1007/978-1-4939-8784-9_13]]
**'''High-throughput transporter identification for small molecules in cell factories with validation using ''Xenopus'' expression assays.''' See ''Transportome-wide engineering of Saccharomyces cerevisiae,''. 2021. Wang et al. Metabolic Engineering.[https://www.sciencedirect.com/science/article/pii/S109671762100015X?via%3Dihub]
**'''Uptake Assays in Xenopus laevis Oocytes Using Liquid Chromatography-mass Spectrometry to Detect Transport Activity''' Jorgenson et al 2021. bio-protocol. [https://bio-protocol.org/e2581]
**'''Synthetic hyperacetylation of nucleosomal histones''' (protocol showing Synthetic histone acetylation inhibits DNA replication). Kajino et al 2021. RSC Chemical Biology [https://pubs.rsc.org/en/content/articlelanding/2020/CB/D0CB00029A]
** '''Xenopus laevis Oocytes Preparation for in-Cell EPR Spectroscopy''' (In-cell electron paramagnetic resonance (EPR) spectroscopy to determine the structure and dynamics of bio-macromolecules in the cell) Laura John and Malte Drescher. 2021. bio-protocol [https://bio-protocol.org/e2798]

== '''Cold Spring Harbor ''Xenopus'' Protocols''' Edited by Hazel Sive. published online 2017-2021. [http://cshprotocols.cshlp.org/search?fulltext=Xenopus&submit=yes&x=18&y=12&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic+introduction&tocsectionid=emerging+model+organisms&tocsectionid=product+protocol&tocsectionid=kit&tocsectionid=information+panel]==
Note: External links to CSHL press are provided but a subscription fee is required for access most CSHL protocols.
All CSHL protocol articles are Copyright 2018, 2019, 2020 or 2021 Cold Spring Harbor Laboratory Press- Request permission to re-use images/figures accordingly.

==='''''Husbandry and Obtaining Eggs and Embryos'''''===
**Raising and Maintaining ''Xenopus tropicalis'' from Tadpole to Adult. Maura Lane, Michael Slocum and Mustafa K Khokha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106369.long]
**Obtaining ''Xenopus tropicalis'' Eggs. Maura Lane, Emily K Mis and Mustafa K Khokha 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106344.long]
**Obtaining ''Xenopus tropicalis'' Embryos by Natural Mating. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106609.long]
**Obtaining ''Xenopus tropicalis'' Embryos by In Vitro Fertilization. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106351.long]
**Obtaining ''Xenopus laevis'' Eggs. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57590]
**Obtaining ''Xenopus laevis'' Embryos. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57598]
** Cryopreservation of ''Xenopus'' Sperm and In Vitro Fertilization Using Frozen Sperm Samples. Anna Nobel, Anita Abu-Daya, Matt Guille. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot107029.long]

=== '''''General Research Protocols''''' ===
**Microinjection of ''Xenopus tropicalis'' Embryos. Maura Lane , Emily K Mis and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107644.long]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Embryos. Jean-Pierre Saint-Jeannet. 2017 [http://cshprotocols.cshlp.org/content/2017/12/pdb.prot097287.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Oocytes. Diana Bauermeister and Tomas Pieler. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097014.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Fluorescence In Situ Hybridization of Cryosectioned ''Xenopus'' Oocytes. Christopher R. Neil and Kimberly Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.prot097030.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Whole-Mount Immunocytochemistry in ''Xenopus''. Michael W. Klymkowsky. 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.prot097295.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Microinjection of mRNAs and Oligonucleotides. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097261.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Microinjection of DNA Constructs into ''Xenopus'' Embryos for Gene Misexpression and cis-Regulatory Module Analysis. Yuuri Yasuoka and Masanori Taira. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097279.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Whole-Mount Immunofluorescence for Visualizing Endogenous Protein and Injected RNA in ''Xenopus'' Oocytes. Samantha P. Jeschonek and Kimberly L. Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097022.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Isolation of ''Xenopus'' Oocytes. Karen Newman, Tristan Aguero, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot095851.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Microinjection of ''Xenopus'' Oocytes. Tristan Aguero, Karen Newman, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot096974.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Oocyte Host-Transfer and Maternal mRNA Depletion Experiments in ''Xenopus''. Douglas W. Houston. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot096982.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Applying Tensile and Compressive Force to ''Xenopus'' Animal Cap Tissue. Georgina K. Goddard, Nawseen Tarannum, and Sarah Woolner. 2020. [http://cshprotocols.cshlp.org/content/early/2019/12/19/pdb.prot105551.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Isolation and Demembranation of ''Xenopus'' Sperm Nuclei. James W. Hazel and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099044.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Patch-Clamp and Perfusion Techniques to Study Ion Channels Expressed in ''Xenopus'' Oocytes. Guohui Zhang and Jianmin Cui. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot099051.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Heterologous Protein Expression in the ''Xenopus'' Oocyte. Jonathan S. Marchant. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096990.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Isolation and Analysis of ''Xenopus'' Germinal Vesicles. Garry T. Morgan. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096958.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**''Xenopus'' Tadpole Tissue Harvest. Matthew D. Patmann, Leena H. Shewade, Katelin A. Schneider, and Daniel R. Buchholz. 2017 [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot097675.full?sid=2def726a-9d33-480f-960a-2cb505467e1d].
**''In Vivo'' Transfection of Naked DNA into ''Xenopus'' Tadpole Tail Muscle. Lindsey Marshall, Fabrice Girardot, Barbara A. Demeneix, and Laurent Coen. 2017. [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot099366.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Cell Proliferation Analysis during ''Xenopus'' Metamorphosis: Using 5-Ethynyl-2-Deoxyuridine (EdU) to Stain Proliferating Intestinal Cells. Morihiro Okada and Yun-Bo Shi. 2017. [http://cshprotocols.cshlp.org/content/2017/9/pdb.prot097717.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''Genome Editing Protocols''''' ===
**Generating Nonmosaic Mutants in ''Xenopus'' Using CRISPR-Cas in Oocytes''' Sang-Wook Cha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot106989.long]
**CRISPR-Cas9 Mutagenesis in Xenopus tropicalis for Phenotypic Analyses in the F0 Generation and Beyond.Ira Blitz and Takuya Nakayama. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=58352]
** Modeling Human Genetic Disorders with CRISPR Technologies in ''Xenopus''. helen Willsey, Matt Guille, and Robert Grainger. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot106997.long]

=== ''''''Omics''''' ===
**Transcriptomics and Proteomics Methods for ''Xenopus'' Embryos and Tissues. Michael J. Gilchrist, Gert Jan C. Veenstra, and Ken W.Y. Cho. 2020. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/early/2019/11/26/pdb.top098350.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Mass Spectrometry-Based Absolute Quantification of Single ''Xenopus'' Embryo Proteomes. Rik G.H. Lindeboom, Arne H. Smits, Matteo Perino, Gert Jan C. Veenstra, and Michiel Vermeulen. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098376.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**INTACT Proteomics in ''Xenopus''. Lauren Wasson, Nirav M. Amin, and Frank L. Conlon. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098384.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
=== '''''Imaging''''' ===
**''Xenopus'' Tadpole Craniocardiac Imaging Using Optical Coherence Tomography. Engin Deniz, Emily K Mis, Maura Lane and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot105676.long]
**Live Imaging of Cytoskeletal Dynamics in Embryonic ''Xenopus laevis'' Growth Cones and Neural Crest Cells. Burcu Erdogan, Elizabeth Bearce, Laura Anne Lowery. 2020. [http://cshprotocols.cshlp.org/content/2021/4/pdb.prot104463.long]
**Imaging Methods in "Xenopus" Cells, Embryos, and Tadpoles. Lance A Davidson and Laura Anne Lowery. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.top105627.long]
**Imaging Structural and Functional Dynamics in ''Xenopus'' Neurons. Hollis Cline. 2021 [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.top106773.long]

=== '''''Genomes, Chromosomes, DNA, Chromatin and Epigenetics''''' ===
**''In Vitro'' Transcription Systems. Michael R. Green and Joseph Sambrook. [http://cshprotocols.cshlp.org/content/2020/1/pdb.top100750.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**ChIP-Sequencing in ''Xenopus'' Embryos. Saartje Hontelez, Ila van Kruijsbergen, and Gert Jan C. Veenstra. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097907.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Characterization in ''Xenopus laevis'' Cell-Free Egg Extracts and Embryos. Wei-Lin Wang, Takashi Onikubo, and David Shechter. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot099879.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Analysis of Chromatin Binding of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105577.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Analysis of Phosphorylation Status of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105569.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Assessing Ubiquitylation of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot104513.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Generating a Three-Dimensional Genome from ''Xenopus'' with Hi-C. Ian K. Quigley and Sven Heinz. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot098343.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**An RNA-Seq Protocol for Differential Expression Analysis. Nick D.L. Owens, Elena De Domenico, and Michael J. Gilchrist. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098368.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**DNase-seq to Study Chromatin Accessibility in Early ''Xenopus tropicalis'' Embryos. Jin Sun Cho, Ira L. Blitz, and Ken W.Y. Cho. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot098335.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Mapping Chromatin Features of ''Xenopus'' Embryos. George E. Gentsch and James C. Smith. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100263.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Reconstituting Nuclear and Chromosome Dynamics Using ''Xenopus'' Extracts. Susannah Rankin. 2019 [http://cshprotocols.cshlp.org/content/2019/3/pdb.top097105.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Extracts for Analysis of DNA Replication in a Nucleus-Free System. Justin Sparks and Johannes C. Walter. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.prot097154.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Endoplasmic Reticulum Network Formation with ''Xenopus'' Egg Extracts. Songyu Wang, Fabian B. Romano, and Tom A. Rapoport. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097204.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Chromosome Cohesion and Condensation in ''Xenopus'' Egg Extracts. Eulália M.L. da Silva and Susannah Rankin. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097121.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot104620.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Chromatin Immunoprecipitation for Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. 2018. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097725.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Endocrinology, Toxicology and Metamorphosis'''''===
**Methods for Investigating the Larval Period and Metamorphosis in ''Xenopus''. Daniel R. Buchholz and Yun-Bo Shi. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2018/10/pdb.top097667.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Frog Embryo Teratogenesis Assay—Xenopus (FETAX): Use in Alternative Preclinical Safety Assessment. Douglas J. Fort and Michael Mathis. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098319.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Following Endocrine-Disrupting Effects on Gene Expression in ''Xenopus laevis''. Petra Spirhanzlova, Michelle Leemans, Barbara A. Demeneix, and Jean-Baptiste Fini. 2019. Full-text link: [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot098301.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Larval Thymectomy of ''Xenopus laevis''. Sara Mashoof, Breanna Breaux, and Michael F. Criscitiello. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot099192.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Cell-free extracts, Cell-free systems''''' ===
**The Use of Cell-Free ''Xenopus'' Extracts to Investigate Cytoplasmic Events. Romain Gibeaux and Rebecca Heald. 2019.[[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2019/6/pdb.top097048.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Calculating the Degradation Rate of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot103481.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b].
**Special Considerations for Making Explants and Transplants with ''Xenopus tropicalis''. 2019. Marilyn Fisher and Robert M. Grainger. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]. Supplemental Material [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428/suppl/DC1].
**Filopodia-Like Structure Formation from ''Xenopus'' Egg Extracts. Helen M. Fox and Jennifer L. Gallop. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot100545.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Centromere and Kinetochore Assembly in ''Xenopus laevis'' Egg Extract. Julio C. Flores Servin and Aaron F. Straight. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot102509.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Dissecting Protein Complexes in Branching Microtubule Nucleation Using Meiotic Xenopus Egg Extracts. Jae-Geun Song and Sabine Petry. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot100958.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot097113.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Analysis of Mitotic Checkpoint Function in ''Xenopus'' Egg Extracts. Yinghui Mao. 2018 [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot099853.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Chemical Screening Using Cell-Free ''Xenopus'' Egg Extract. Matthew R. Broadus and Ethan Lee. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098277.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Robustly Cycling ''Xenopus laevis'' Cell-Free Extracts in Teflon Chambers. Jeremy B. Chang and James E. Ferrell Jr. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097212.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Microfluidic Encapsulation of Demembranated Sperm Nuclei in ''Xenopus'' Egg Extracts. John Oakey and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot102913.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Nucleus Assembly and Import in ''Xenopus laevis'' Egg Extract. Pan Chen and Daniel L. Levy. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097196.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Assembly of Spindles and Asters in ''Xenopus'' Egg Extracts. Christine M. Field and Timothy J. Mitchison. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099796.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Preparation of Cellular Extracts from ''Xenopus'' Eggs and Embryos. Matthew C. Good and Rebecca Heald. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097055.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Using the ''Xenopus'' Oocyte Toolbox. Kim L. Mowry. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/23/pdb.top095844.long]
**The Use of ''Xenopus'' for Cell Biology Applications. Anna Philpott. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57973]

=== '''''Immunobiology''''' ===
**Cryosectioning and Immunostaining of ''Xenopus'' Embryonic Tissues. Olga Ossipova and Sergei Y Sokol. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107151.long]
**Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105585.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Purifying Antibodies Raised against ''Xenopus'' Peptides. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105619.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Assessing the Immune Response When Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105593.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Lymphocyte Deficiency Induced by Sublethal Irradiation in ''Xenopus''. Louise A. Rollins-Smith and Jacques Robert. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097626.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de].
**Skin Grafting in ''Xenopus laevis'': A Technique for Assessing Development and Immunological Disparity. Yumi Izutsu. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099788.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Adoptive Transfer of Fluorescently Labeled Immune Cells in ''Xenopus''. Kun Hyoe Rhoo and Jacques Robert. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot097592.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Assessing Antibody Responses to Pathogens or Model Antigens in ''Xenopus'' by Enzyme-Linked Immunosorbent Assay (ELISA). Francisco De Jesús Andino and Jacques Robert. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099234.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''In Vivo'' Assessment of Neural Precursor Cell Cycle Kinetics in the Amphibian Retina. Morgane Locker and Muriel Perron2019. [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184], Supplemental Material [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536/suppl/DC1]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/search?hits=10&submit=yes&submit=Go&sortspec=date&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic%20introduction&tocsectionid=emerging%20model%20organisms&tocsectionid=product%20protocol&tocsectionid=kit&tocsectionid=information%20panel&format=standard&y=12&x=18&fulltext=Xenopus&FIRSTINDEX=60]
**Elicitation of Xenopus laevis Tadpole and Adult Frog Peritoneal Leukocytes. Leon Grayfer. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097642.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

==='''''Assessing Behaviour and Behavioural Phenotypes'''''===
**Schooling in Xenopus laevis Tadpoles as a Way to Assess Their Neural Development. Virgillio Lopez III, Arseny Khakhalin and CArlos Aizenman. 2021. [http://cshprotocols.cshlp.org/content/2021/5/pdb.prot106906]

==='''''Neurobiology, Electrophysiology and Tissue Regeneration'''''===
**Tetrode Recording in the ''Xenopus laevis'' Visual System Using Multichannel Glass Electrodes.M Hiramoto and Hollis Cline. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57786]
**Electrophysiological Approaches to Studying Normal and Abnormal Retinotectal Circuit Development in the ''Xenopus'' Tadpole. Kara Pratt. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57785]
**Making ''In Situ'' Whole-Cell Patch-Clamp Recordings from ''Xenopus laevis'' Tadpole Neurons. WC Li. 2021. [http://www.xenbase.org/literature/article.do?articleId=57784&method=display]
**Analysis of Visual Collision Avoidance in ''Xenopus'' Tadpoles. Arseny Khakhalin. 2020 [http://www.xenbase.org/literature/article.do?method=display&articleId=57593]
**''Ex Vivo'' Eye Tissue Culture Methods for ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101535.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Methods for Examining Lens Regeneration in ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101527.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Tracing Central Nervous System Axon Regeneration in ''Xenopus''. Kurt M. Gibbs and Ben G. Szaro. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101030.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Cell Transplantation as a Method to Investigate Spinal Cord Regeneration in Regenerative and Nonregenerative ''Xenopus'' Stages. Emilio E. Méndez-Olivos and Juan Larraín. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101006.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Infrared Laser-Mediated Gene Induction at the Single-Cell Level in the Regenerating Tail of ''Xenopus laevis'' Tadpoles. Riho Hasugata, Shinichi Hayashi, Aiko Kawasumi-Kita, Joe Sakamoto, Yasuhiro Kamei, and Hitoshi Yokoyama. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101014.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Rod-Specific Ablation Using the Nitroreductase/Metronidazole System to Investigate Regeneration in ''Xenopus''. Reyna I. Martinez-De Luna and Michael E. Zuber. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot100974.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Studies of Limb Regeneration in Larval ''Xenopus''. Anthony L. Mescher and Anton W. Neff. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100990.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864].
**Bulk Electroporation-Mediated Gene Transfer into Xenopus Tadpole Brain. Cristina Sáenz de Miera, Ethan Parr, and Robert J. Denver. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691.full?sid=d5693f80-e850-417d-a254-c0574571010e] . Supplemental Material [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691/suppl/DC1].
**Inverse Drug Screening of Bioelectric Signaling and Neurotransmitter Roles: Illustrated Using a ''Xenopus'' Tail Regeneration Assay. Kelly G. Sullivan and Michael Levin. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot099937.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Neurophysiological and Behavioral Analysis in ''Xenopus''. Ben Szaro. 2021. (Electrophysiology protocols for studies of neural circuitry in the developing optic tectum and spinal cord, vocalizations, and locomotory behavior).
[http://www.xenbase.org/literature/article.do?articleId=57966&method=display]
**Electrophysiological Recording for Study of ''Xenopus'' Retinotectal Circuitry. Y Luo , W Shen, and Hollis Cline. 2021. [http://www.xenbase.org/literature/article.do?articleId=57968&method=display]
**Bulk Dye Loading for In Vivo Calcium Imaging of Visual Responses in Populations of ''Xenopus'' Tectal Neurons. PW Hogg and K Haas. 2021. [http://www.xenbase.org/literature/article.do?method=display&articleId=57972]
** ''Xenopus'', a Model to Study Wound Healing and Regeneration: Experimental Approaches. Paula Slater, M Palacios, Juan Larraín. 2021. [http://www.xenbase.org/literature/article.do?articleId=57974&method=display]
** ''In Vivo'' Time-Lapse Imaging and Analysis of Dendritic Structural Plasticity in ''Xenopus laevis'' Tadpoles. Hai-Yun He, Chih-Yang Lin and Hollis Cline. 2021. [doi: 10.1101/pdb.prot106781] [https://www.xenbase.org/literature/article.do?articleId=57985&method=display]

==='''''Fate mapping, Explants and Transplants'''''===
**Dissecting and Culturing Animal Cap Explants. Kevin S. Dingwell and James C. Smith. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097329.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Cranial Neural Crest Explants. Hélène Cousin and Dominique Alfandari. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097394.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Einsteck Transplants. Hélène Cousin. 2019 [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097352.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Deletion and Transplantation to Test Cell Fate Commitment in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097311.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Explant Culture in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097303.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Lineage Tracing and Fate Mapping in ''Xenopus'' Embryos. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097253.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Collagen-Embedded Tumor Transplantations in ''Xenopus laevis'' Tadpoles. Maureen Banach and Jacques Robert. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097584.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]
**Organ Culture of the ''Xenopus'' Tadpole Intestine. Atsuko Ishizuya-Oka. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097683.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

===CSHL Recipes===
**Embryo Lysis Buffer (''Xenopus''). (Recipe 1) CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/7/pdb.rec106542.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**''Xenopus'' Embryo Lysis Buffer. (Recipe 2). CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec104984.full?sid=ee051c86-4c27-43bb-b30d-6ab36902aaf0]
**Lysis Buffer for ''Xenopus'' (recipe3) CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105775.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**DNA Isolation Buffer. CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106443.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Lysis Buffer for Xenopus Hi-C. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106435.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**RIPA Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.rec105932.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Amphibian Serum-Free (ASF) Medium Supplemented with Fetal Bovine Serum (FBS). CSHL 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec105387.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''Xenopus'' Eye Culture Medium. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec105072.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (1×). CSHLP. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103861.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (20×). CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.rec104406.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Injection Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105957.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**TE Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105973.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Proteinase K Buffer for ''Xenopus'' Oocytes. CSHLP 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103374.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**PBT/PBT-Plus for ''Xenopus'' Oocytes. CSHL. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103366.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Energy Mix for ''Xenopus'' Egg Extracts. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103606.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**''Xenopus'' Oocyte Culture Medium (XOCM).CSHL 2018.[http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103382.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**PBT for ''Xenopus'' Oocyte FISH.CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103630.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Blocking Solution for ''Xenopus'' Oocytes. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.rec103945.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Aldehyde Fixative (MEMFA). CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.rec102731.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Staining Buffer for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102798.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Blocking Solution for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102772.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Embryonic ''Xenopus'' Culture Media (CM). CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102699.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Hybridization Buffer (HB) for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102780.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]

='''Cold Spring Harbor ''Xenopus'' Protocols''' 2007. Edited by Hazel Sive=
**Housing and Feeding of Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.top8.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Inducing Ovulation in Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4734.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis In Vitro Fertilization and Natural Mating Methods - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4737.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Egg Collection and In Vitro Fertilization of the Western Clawed Frog Xenopus tropicalis - Showell & Conlon [http://cshprotocols.cshlp.org/content/2009/9/pdb.prot5293.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5534.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolating Xenopus laevis Testes - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4735.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Dejellying Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4731.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Removing the Vitelline Membrane from Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4732.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.ip81.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Defolliculation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5535.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5536.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Animal Cap Isolation from Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4744.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis Keller Explants - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4749.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of RNA and Preparation of Secreted Proteins from Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5538.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Calibration of the Injection Volume for Microinjection of Xenopus Oocytes and Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5537.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of DNA from Red Blood Cells in Xenopus - Sive et al. [http://cshprotocols.cshlp.org/content/2012/1/pdb.prot067462.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Investigating Morphogenesis in Xenopus Embryos: Imaging Strategies, Processing, and Analysis - Kim & Davidson [http://cshprotocols.cshlp.org/content/2013/4/pdb.top073890.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Low-Magnification Live Imaging of Xenopus Embryos for Cell and Developmental Biology - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5425.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**High-Magnification In Vivo Imaging of Xenopus Embryos for Cell and Developmental Biology - Keiserman et al. [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5427.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Preparation of Fixed Xenopus Embryos for Confocal Imaging - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5426.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Whole-Mount Fluorescence Immunocytochemistry on Xenopus Embryos - Lee et al. [http://cshprotocols.cshlp.org/content/2008/2/pdb.prot4957.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Generation of Transgenic Xenopus laevis - Kroll & Amaya - [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4838.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4839.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4840.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**In Vivo Time-Lapse Imaging of Neuronal Development in Xenopus - Ruthazer et al. [http://cshprotocols.cshlp.org/content/2013/9/pdb.top077156.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Photoconversion for Tracking the Dynamics of Cell Movement in Xenopus laevis Embryos - Chernet et al. [http://cshprotocols.cshlp.org/content/2012/6/pdb.prot068502.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Single-Cell Electroporation in Xenopus - Liu & Haas [http://cshprotocols.cshlp.org/content/2011/9/pdb.top065607.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Imaging Axon Pathfinding in Xenopus In Vivo - Leung & Holt [http://cshprotocols.cshlp.org/content/2012/9/pdb.prot070003.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**A Versatile Protocol for mRNA Electroporation of Xenopus laevis Embryos - Chernet & Levin [http://cshprotocols.cshlp.org/content/2012/4/pdb.prot067694.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]

== '''''General Research Protocols''''' ==

=== '''''Animal Husbandry''''' ===
*obtain frogs and frog housing equipment [http://www.xenbase.org/other/obtain.do]
*Xenopus Express links [http://www.xenopus.com/links.htm] - Xenopus Express husbandry [http://www.xenopus.com/husbandry.htm]
*[[Xenopus tropicalis and Xenopus laevis environmental parameter standard operating procedure (Kroll lab)]]

=== '''''[[Lab Solutions and Reagents]]''''' (click each to view expanded content) ===
*[[culture media]]
*[[immunohistochemistry]]
*[[in situ hybridization]]
*[[fixatives]]
*[[DNA/RNA preparation]]
*[[embryo manipulation/dissection]]
*[[microinjection]]
*[[general buffers and salt solutions]]

=== '''''Generating Embryos''''' ===
*[[inducing egg laying via hCG injection (Vize lab)]]
*[[anesthesia, in vitro fertilization, and natural mating of Xenopus tropicalis (Conlon lab)]]
*[[benzocaine stock, 100x (Khokha lab)]]
*[[in vitro fertilization of Xenopus laevis (Conlon lab)]]
*[[high-salt solution for egg laying (Zorn lab/Ron Laskey)]]
*[[dejellying embryos (Sive et al. 2000)]]
*[[dejellying embryos (Zorn lab)]]

=== '''''Transgenesis''''' ===
*[[transgenesis in ''Xenopus laevis'' - adapted from Amaya et al 2001 (Conlon lab)]]
*[[tadpole tail sampling for genomic DNA (Conlon lab)]]
*''Production of transgenic ''Xenopus laevis'' by restriction enzyme mediated integration and nuclear transplantation.'' Amaya E, Kroll K. J Vis Exp. 2010 Aug 21;(42). [http://www.jove.com/video/2010/production-of-transgenic-xenopus-laevis-by-restriction-enzyme-mediated-integration-and-nuclear-transplantation]
*''A method for generating transgenic frog embryos.'' Ishibashi S, Kroll KL, Amaya E. Methods Mol Biol. 2008;461:447-66. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*''A method for generating transgenic frog embryos.'' Amaya E, Kroll KL. Methods Mol Biol. 1999;97:393-414. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*Optimization Strategies for the CRISPR–Cas9 Genome-Editing System. Vejnar et al 2016. [http://cshprotocols.cshlp.org/content/2016/10/pdb.top090894.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''in situ Hybridization''''' ===
*[[in situ hybridization, brief version (Harland lab)]]
*[[whole-mount in situ hybridization (Conlon lab)]]
**[[in situ checklist (Conlon lab)]]
*[[whole-mount in situ hybridization - LNA probes (Wheeler lab)]]
*fluorescent in situs and FCIS (Vize lab)
**[[Wholemount embryo FISH / Double FISH]]
**[[Flourescin Tyramide Synthesis]]
**[[Cy3 Tyramide Synthesis]]
**[[FCIS]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''Immunohistochemistry''''' ===
*[[wholemount antibody staining (CSH Protocols) (Wallingford lab)]]
*[[wholemount antibody staining - alkaline phosphatase detection (Conlon lab)]]
*[[wholemount antibody staining - adapted from Dan Weeks' protocol (Conlon lab)]]
*[[immunostaining sectioned embryos (Conlon lab)]]
*[[hydrochloric acid antigen retrieval (Zorn lab)]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''ChIP protocols''''' ===
*'''Chromatin immunoprecipitation analysis of Xenopus embryos.''', Methods Mol Biol. 2012;917:279-92. [http://www.xenbase.org/literature/article.do?method=display&articleId=45851] [http://www.ncbi.nlm.nih.gov/pubmed/22956095]
**Akkers RC, Jacobi UG, Veenstra GJ.
*'''Chromatin immunoprecipitation in early Xenopus laevis embryos.''', Dev Dyn. 2009 Jun;238(6):1422-32. [http://www.xenbase.org/literature/article.do?method=display&articleId=39423] [http://www.ncbi.nlm.nih.gov/pubmed/19334278]
**Blythe SA, Reid CD, Kessler DS, Klein PS.

=== '''''Histology''''' ===
*[[cryosectioning ''Xenopus'' embryos (Conlon lab)]]

=== '''''Embryo Staining Protocols (non in situ)''''' ===
*[[benzidine-peroxidase staining for blood (Conlon lab)]]
*[[benzidine-peroxidase staining for blood (Thomsen lab)]]
*[[apoptosis via TUNEL (Veenstra lab)]]
*[[TUNEL staining of whole Xenopus embryos - Harland protocol (Conlon lab)]]

=== '''''Immuno and Protein Protocols''''' ===
*[[immunoprecipitation (Stukenberg lab)]]
*[[immunofluorescence with biotinylated antibodies (Stukenberg lab)]]
*Purifying Polyclonal Antibodies using Affinity Columns/Chromatography
*[[Making an Affinity Column]]
*[[Running an Affinity Column]]
*[[whole embryo protein extraction with freon (Conlon lab)]]
*[[SDS-PAGE gels (Conlon lab)]]
*[[western blot protocol (Conlon lab)]]
*[[silver staining protein gels (Stukenberg lab)]]

=== '''''Nucleic Acid Protocols''''' ===
*RNA Isolation
**[[Preparation of RNA Using Proteinase K/LiCl (Sive et al. 2000)]]
**[[Preparation of RNA (In Vitro Transcription) (Sive et al. 2000)]]
*DNA Isolation
**[[Extraction of DNA from Single Embryos (Sive et al. 2000)]]
**[[Isolation of DNA from Red Blood Cells (Sive et al. 2000)]]
*RNaseH-mediated RNA depletion
**[[Optimized design of antisense oligomers for targeted rRNA depletion (Phelps et al 2020))]] [[https://doi.org/10.1093/nar/gkaa1072]]

=== '''''[[Oocyte Transfer Technique (Heasman/Wylie labs)]]''''' ===
*[[Part 1: Choosing Oligodeoxyribonucleotides (ODNs)]]
*[[Part 2: ODN Modification]]
*[[Part 3: Host Transfer Technique]]
*[[Part 4: Fertilization and Development]]

=== '''''Xenopus Oocyte and Egg Extracts''''' ===
*[[crude interphase egg extract (Shechter lab)]]
*[[isolation of chromatin from egg extract and histone recovery (Shechter lab)]]
*[[preparation of cycling egg extract (Shechter lab)]]
*[[cycling extracts, mike's protocol (Stukenberg lab)]]
*[[cycling extracts, sara's protocol (Stukenberg lab)]]
*[[CSF extract, mike's protocol (Stukenberg lab)]]
*[[CSF extract, sara's protocol (Stukenberg lab)]]
*[[assaying H1 kinase in extracts (Stukenberg lab)]]
*[[frozen egg extracts that retain spindle assembly activity (Takagi and Shimamoto, 2017)]]

=== '''''Xenopus Tissue Culture''''' ===
*[[tissue culture of ''Xenopus'' cell lines S3, XTC (Stukenberg lab)]]
*[[isolation of mitotic chromosomes from XTC cells (Stukenberg lab)]]
*[[in-vitro kinetochore-microtubule binding assays (Stukenberg lab)]]

Protocols

2025-05-30T18:10:43Z

Christina: /* Preparing HiChIP Libraries */

__TOC__

== '''''Books for Xenopus Research and Protocols''''' ==
*'''''Xenopus'' Protocols: Post-Genomic Approaches. ''' Hoppler and Vize, 2012 [http://xenbase.org/literature/book.do?method=display&bookId=262]
**expanded second edition with novel approaches inspired by ''X. tropicalis'' genome sequencing.

*'''The Laboratory ''Xenopus sp''.''' Green, 2010 [http://www.xenbase.org/literature/book.do?method=display&bookId=222]
**a highly detailed manual containing Xenopus husbandry, management, veterinary care, and frog and equipment vendor information

*'''''Xenopus'' Protocols: Cell Biology and Signal Transduction''' Liu (First edition), 2006 [http://www.xenbase.org/literature/book.do?method=display&bookId=206]
**step-by-step laboratory instructions, an introduction outlining the principles behind the technique, lists of the necessary equipment and reagents.

*'''Color Atlas of ''Xenopus laevis'' Histology''', Wiechmann and Wirsig-Wiechmann, 2003 [http://www.xenbase.org/literature/book.do?method=display&bookId=82]
**central source on the microscopic anatomy of cells, tissues, and major organs of Xenopus laevis.

*'''Early Development of ''Xenopus laevis'': A Laboratory Manual''', Sive, Grainger, and Harland, 2000 [http://www.xenbase.org/literature/book.do?method=display&bookId=22]
**comprehensive collection of protocols for the study of early development in Xenopus embryos

*'''Transgenic ''Xenopus'': Microinjection Methods and Developmental Neurobiology''', Seidman and Soreq, 1997 [http://www.xenbase.org/literature/book.do?method=display&bookId=203]
**referenced guide to the use of microinjected embryos studying the role and regulation of nervous system proteins during development.

*'''Atlas of ''Xenopus'' Development''', Bernardini, Prati, Bonetti, and Scari, 1999 [http://www.xenbase.org/literature/book.do?method=display&bookId=202]
**scanning, transmission, and light microscopy images of Xenopus embryonic development.

*'''Normal Table of ''Xenopus laevis'' (Daudin)''', Nieuwkoop and Faber (Third edition), 1994 [http://www.xenbase.org/literature/book.do?method=display&bookId=1]
**a systematic and chronological description of Xenopus laevis development.

*'''Xenopus laevis: Practical Uses in Cell and Molecular Biology, Volume 36''', Kay and Peng, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=204]
**detailed description of a wide range of uses for Xenopus laevis oocytes and embryos in cell and molecular biology.

*'''The early development of ''Xenopus laevis''. An atlas of the histology''', Hausen and Riebesell, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=124]
**detailed histological sections of Xenopus embryonic development

== '''''Xenopus Protocols and Video Demostrations: Online Resources''''' ==

=== '''Journal of Visualized Experiments (JOVE) - ''Xenopus'' embryo''' [http://www.jove.com/keyword/xenopus+embryo] - excellent video demonstrations and detailed protocols for a wide variety of lab protocols using ''Xenopus'' ===
**Methods for Tattooing ''Xenopus laevis'' with a Rotary Tattoo Machine- Super and Landino.[https://app.jove.com/t/67086/methods-for-tattooing-xenopus-laevis-with-a-rotary-tattoo-machine]
**Functional Evaluation of Olfactory Pathways in Living Xenopus Tadpoles - Terni et al. -[https://www.jove.com/video/58028/functional-evaluation-of-olfactory-pathways-in-living-xenopus-tadpoles]
**Obtaining Eggs from ''Xenopus laevi''s Females - Cross & Powers [http://www.jove.com/video/890/obtaining-eggs-from-xenopus-laevis-females]
**Microinjection of ''Xenopus laevis'' Oocytes - Cohen et al. - [http://www.jove.com/video/1106/microinjection-of-xenopus-laevis-oocytes]
**Fertilization of ''Xenopus'' oocytes, Host Transfer Method - Schneider et al. [http://www.jove.com/video/1864/fertilization-of-xenopus-oocytes-using-the-host-transfer-method]
**Tissue Determination Using Animal Cap Transplant (ACT) Assay in ''X. laevis'' - Viczian & Zuber [http://www.jove.com/video/1932/tissue-determination-using-animal-cap-transplant-act-assay-xenopus]
**Blastomere Explants to Test for Cell Fate Commitment - Grant et al. [http://www.jove.com/video/4458/blastomere-explants-to-test-for-cell-fate-commitment-during-embryonic]
**Transgenic ''Xenopus laevis'' by Restriction Enzyme Mediated Integration and Nuclear Transplantation - Amaya & Kroll [http://www.jove.com/video/2010/production-transgenic-xenopus-laevis-restriction-enzyme-mediated]
**Organizer and Animal Pole Explants from ''X. laevis'' Embryos and Cell Adhesion Assay - Ogata & Cho [http://www.jove.com/video/187/dissection-organizer-animal-pole-explants-from-xenopus-laevis-embryos]
**Plastic Embedding and Sectioning of ''X. laevis'' Embryos - Ogata1 et al. [http://www.jove.com/video/188/plastic-embedding-and-sectioning-of-xenopus-laevis-embryos]
**Visualizing RNA Localization in ''Xenopus'' Oocytes - Gagnon & Mowry [http://www.jove.com/video/1704/visualizing-rna-localization-in-xenopus-oocytes]
**Neural Explant Cultures from ''Xenopus laevis'' - Lowery et al. [http://www.jove.com/video/4232/neural-explant-cultures-from-xenopus-laevis]
**Translocation of Fluorescent Proteins in ''Xenopus'' Ectoderm in Response to Wnt Signaling - Itoh & Sokol [http://www.jove.com/video/2700/polarized-translocation-fluorescent-proteins-xenopus-ectoderm]
**Dissection, Culture, and Analysis of ''X. laevis'' Embryonic Retinal Tissue - McDonough et al. [http://www.jove.com/video/4377/dissection-culture-analysis-xenopus-laevis-embryonic-retinal]
**''X. tropicalis'' Egg Extracts to Identify Microtubule-associated RNAs - Sharp & Blower [http://www.jove.com/video/50434/production-xenopus-tropicalis-egg-extracts-to-identify-microtubule]
**Electroporation of Craniofacial Mesenchyme - Tabler & Liu [http://www.jove.com/video/3381/electroporation-of-craniofacial-mesenchyme]
**Electrophysiological Recording from ''Xenopus'' Nerve-muscle Co-cultures - Yazejian et al. [http://www.jove.com/video/50253/simultaneous-pre-post-synaptic-electrophysiological-recording-from]
**Single Cell Electroporation ''in vivo'' within the Intact Developing Brain - Hewapathirane & Haas - [http://www.jove.com/video/705/single-cell-electroporation-in-vivo-within-the-intact-developing-brain]
**Live-cell Imaging and Quantitative Analysis of Embryonic Epithelial Cells - Joshi & Davidson [http://www.jove.com/video/1949/live-cell-imaging-quantitative-analysis-embryonic-epithelial-cells]
**Preparation and Fractionation of ''Xenopus laevis'' Egg Extracts - Cross & Powers [http://www.jove.com/video/891/preparation-and-fractionation-of-xenopus-laevis-egg-extracts]
**In Vitro Nuclear Assembly Using Fractionated ''Xenopus'' Egg Extracts - Cross & Powers [http://www.jove.com/video/908/in-vitro-nuclear-assembly-using-fractionated-xenopus-egg-extracts]
**Study of the DNA Damage Checkpoint using ''Xenopus'' Egg Extracts - Willis et al. [http://www.jove.com/video/4449/study-of-the-dna-damage-checkpoint-using-xenopus-egg-extracts]
**Two Types of Assays for Detecting Frog Sperm Chemoattraction - Burnett et al. [http://www.jove.com/video/3407/two-types-of-assays-for-detecting-frog-sperm-chemoattraction]
**Comparative in vivo Study of gp96 Adjuvanticity in ''X. laevis'' - Nedelkovska et al. 2010. [http://www.jove.com/video/2026/comparative-vivo-study-gp96-adjuvanticity-frog-xenopus]
**Patch Clamp and Perfusion Techniques - Yang et al. [http://www.jove.com/video/2269/patch-clamp-perfusion-techniques-for-studying-ion-channels-expressed]
**Patch Clamp Recording of Ion Channels - Brown et al. [http://www.jove.com/video/936/patch-clamp-recording-of-ion-channels-expressed-in-xenopus-oocytes]
**Cation Transport in ''Xenopus'' Oocytes - Dürr et al.[http://www.jove.com/video/50201/measuring-cation-transport-nak-hk-atpase-xenopus-oocytes-atomic]
**Stem cell-like ''Xenopus'' Embryonic Explants to Study Early Neural Developmental Features In Vitro and In Vivo - BC.Durand [https://www.jove.com/video/53474/stem-cell-like-xenopus-embryonic-explants-to-study-early-neural]
**Dissection of ''Xenopus laevis'' Neural Crest for ''in vitro'' Explant Culture or in vivo Transplantation - Millet & Monsoro-Burq [https://www.jove.com/video/51118/dissection-xenopus-laevis-neural-crest-for-vitro-explant-culture-or]
**Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living ''Xenopus'' Tadpoles- Dao, Jones and Elul. 2019. [https://www.jove.com/video/60123/microinjection-dna-into-eyebuds-xenopus-laevis-embryos-imaging-gfp]
**Reconstitution Of β-catenin Degradation In Xenopus Egg Extract. Chen et al. 2020. [https://www.jove.com/video/51425/reconstitution-of-catenin-degradation-in-xenopus-egg-extract]

** ''Xenopus laevis'' Egg Extract Preparation and Live Imaging Methods for Visualizing Dynamic Cytoplasmic Organization. Xianrui Cheng and James Farrell. 2021. [https://www.jove.com/t/61923/xenopus-laevis-egg-extract-preparation-live-imaging-methods-for]

=='''Protocols published in non-CSHL Journals and from ''Xenopus'' labs -click to view-'''==
==='''''Xenopus Sperm cryopreservation'''''===
**'''Transitioning from a research protocol to a scalable applied pathway for Xenopus laevis sperm cryopreservation at a national stock center: The effect of cryoprotectants'''. Lucía Arregui, Jack C. Koch, Terrence R. Tiersch. 2023. JEZ-B molecular and Developmental Evolution[https://doi.org/10.1002/jez.b.23228]
**'''Cryopreservation of sperm of ''Xenopus laevis'' and ''Xenopus tropicalis''''' Michael G. Sargent, Timothy J. Mohun. 2005, Genesis [https://doi.org/10.1002/gene.20092]

==='''''Quantifying Transcription in Early Embryos'''''===
**'''Quantifying Nascent Transcription in Early Embryogenesis'''. Hui Chen. 2025, Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_9.]

=== '''''Genotyping, Genome & DNA damage/repair''''' ===
** '''Sex determination in ''Xenopus laevis'' via RT-PCR.''' Amin Eimanifar, John Aufderheide, Suzanne Z. Schneider, Henry Krueger, and Sean Gallagher 2019. "Development of an in vitro diagnostic method to determine the genotypic sex of Xenopus laevis". PeerJ January 1, 2019; 7 e6886. [[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6500372/]]
**'''Studying the DNA damage response in embryonic systems''' ElenaLo Furno, Bénédicte Recolin, Siemvan der Laan, Antoine Aze and Domenico Maiorano. 2021. Chapter Five in ''Methods in Enzymology'' Volume 661, 2021, Pages 95-120.[https://www.sciencedirect.com/science/article/abs/pii/S0076687921003591?via%3Dihub]
** '''Genotyping Tadpoles''' Susannah Rankin's Lab Protocol to determine gender via PCR. [[https://rankin.omrf.org/wp-content/uploads/sites/13/2013/02/tadpole-genotype.pdf]]

=== '''''Behavioral Assays''''' ===
**'''Precisely controlled visual stimulation to study experience-dependent neural plasticity in ''Xenopus'' tadpoles'''. Masaki Hiramoto and Hollis Cline. 2021. STAR Protocols | January 15, 2021. [[https://star-protocols.cell.com/protocols/361utm_campaign=STMJ_132371_CP_ALT&utm_medium=email&utm_acid=75932977&SIS_ID=&dgcid=STMJ_132371_CP_ALT&CMX_ID=&utm_in=DM121371&utm_source=AC_]]
=== '''''Cell cycle, Chromatin and Spindles''''' ===
**'''Immunochemical Detection of Modified Cytosine Species in Lampbrush Chromatin'''. Garry T. Morgan. 2021. In: Ruzov A., Gering M. (eds) DNA Modifications. Methods in Molecular Biology, vol 2198. Humana, New York, NY. [https://doi.org/10.1007/978-1-0716-0876-0_13]

=== '''''Electrophysiology''''' ===
**'''K+ Release Assay and K+ Measurement in Oocyte Assay'''. Hong Li. 2020. Bio-Protocol 10(21),Nov5,2020, [DOI:10.21769/BioProtoc.3802]
**'''A novel voltage-clamp/dye uptake assay reveals saturable transport of molecules through CALHM1 and connexin channels.''' Gaete et al 2021. J Gen Physiol. Nov 2; 152(11): e202012607. Published online 2020 Oct 19. doi: 10.1085/jgp.202012607. PMID:33074302.
**'''Electrophysiological Approaches for the Study of Ion Channel Function''' Guiying Cui, Kirsten A. Cottrill and Nael A. McCarty. 2021. Structure and Function of Membrane Proteins pp 49-67. [https://link.springer.com/protocol/10.1007%2F978-1-0716-1394-8_4]

=== '''''Xenopus oocyte cell free extract''''' ===
**'''DNA Damage Response in ''Xenopus laevis'' Cell-Free Extracts.''' Tomas Aparicio Casado and Jean Gautier 2021. In: Cell Cycle Checkpoints pp 103-144. Part of the Methods in Molecular Biology book series (MIMB, volume 2267). [https://link.springer.com/protocol/10.1007%2F978-1-0716-1217-0_8]
**'''Microfluidic encapsulation of ''Xenopus laevis'' cell-free extracts using hydrogel photolithography.''' Zachary Geisterfer, John Oakey, Jesse Gatlin. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100221 [[https://www.sciencedirect.com/science/article/pii/S2666166720302082?via%3Dihub]]
**''''Affinity Purification of Label-free Tubulins from ''Xenopus'' Egg Extracts''''. Sebastian Reusch, Abin Biswas, William Graham Hirst, SimoneReber. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100151. [[https://www.sciencedirect.com/science/article/pii/S2666166720301386?via%3Dihub]]
** '''Multi-purpose yolk-depleted embryo extracts.'''['''a freon-free protocol'''] Veenstra GJ, Destrée OH, Wolffe AP. Translation of maternal TATA-binding protein mRNA potentiates basal but not activated transcription in ''Xenopus'' embryos at the midblastula transition. Mol Cell Biol. 1999 Dec;19(12):7972-82. [[doi: 10.1128/MCB.19.12.7972]]. PMID: 10567523; PMCID: PMC84882.

=== '''''Xenopus oocyte expression system''''' ===
**'''The ''Xenopus'' Oocyte as an Expression System for Functional Analyses of Fish Aquaporins.''' François Chauvigné, Alba Ferré, Joan Cerdà. 2021. In: Dosch R. (eds) Germline Development in the Zebrafish. Methods in Molecular Biology, vol 2218. Humana, New York, NY. [[https://doi.org/10.1007/978-1-0716-0970-5_2]]

=== '''''Gene knock out/knock down and Gene Editing''''' ===
**'''Vivo-Morpholinos: a non-peptide transporter delivers Morpholinos into a wide array of mouse tissues'''. Morcos et al 2008. Biotechniques December 1, 2008; 45 (6): 613-4, 616, 618 passim. [https://www.xenbase.org/literature/article.do?articleId=58662&method=display] This technique has been used successfully in ''Xenopus'', See Ivanova et al 2021. XB-ART-58553, PubMed ID: 34676214. [https://www.xenbase.org/literature/article.do?articleId=58553&method=display]
**'''Morpholino Studies in ''Xenopus'' Brain Development''', Bestman and Cline. 2019, Brain Development pp 377-395, Part of the Methods in Molecular Biology book series (MIMB, volume 2047) [[https://link.springer.com/protocol/10.1007%2F978-1-4939-9732-9_21#enumeration]]
** '''Protocol for RNaseH-mediated RNA depletion''', see Supplemental file from "Optimized design of antisense oligomers for targeted rRNA depletion" by Wesley A. Phelps, Anne E. Carlson, Miler T. Lee, 2020. Nucleic Acids Research, gkaa1072, [[https://doi.org/10.1093/nar/gkaa1072]]
**'''Optimized design of antisense oligomers for targeted rRNA depletion'''. Wesley Phelps, Anne Carlson and Miler Lee. 2021. Nucleic Acids Res January 1, 2021; 49 (1): e5. [[https://academic.oup.com/nar/article/49/1/e5/5998392]] The Oligo-ASST Web tool is available at The Oligo-ASST Web tool is available at https://mtleelab.pitt.edu/oligo. Source code for the Web application and a command-line version of the program are available at https://github.com/MTLeeLab/oligo-asst.
===''RNA solubility, RNA interference (RNAi)''===
**'''A fractionation-based protocol to investigate RNA solubility phase transition during Xenopus oocyte maturation'''. Hyojeong Hwang, Meng Ma, Jing Yang 2024. STAR protocols. https://doi.org/10.1016/j.xpro.2023.102830 (OA in Cell Press- download PDF here: https://www.sciencedirect.com/science/article/pii/S2666166723007979?via%3Dihub)

**'''Application of the RNA interference technique to Xenopus embryos: Specific reduction of the β-catenin gene products by short double-stranded RNA produced by recombinant human Dicer''' Yuta Tagami, Takeshi Nishiyama, Michiko Omote, and Minoru Watanabe. 2021. Dev Growth Differ November 24, 2021;[https://onlinelibrary.wiley.com/doi/10.1111/dgd.12762]

===''Preparing HiChIP Libraries''===
**'''HiChIP to Study 3D Genome Organization in Xenopus tropicalis Embryos.'''. Amina Hussein, Ira Blitz & Ken Cho. 2025. Methods Mol Biol Jan 01;2923:63-74. [https://doi: 10.1007/978-1-0716-4522-2_5.]

=== '''''MassSpec & Proteomics''''' ===
** '''Quantitative Proteomics of ''Xenopus'' Embryos I, Sample Preparation'''. Meera Gupta, Matthew Sonnett, Lillia Ryazanova, Marc Presler, Martin Wühr . 2018. Methods Mol Biol 2018;1865:175-194. [[doi: 10.1007/978-1-4939-8784-9_13]]
**'''High-throughput transporter identification for small molecules in cell factories with validation using ''Xenopus'' expression assays.''' See ''Transportome-wide engineering of Saccharomyces cerevisiae,''. 2021. Wang et al. Metabolic Engineering.[https://www.sciencedirect.com/science/article/pii/S109671762100015X?via%3Dihub]
**'''Uptake Assays in Xenopus laevis Oocytes Using Liquid Chromatography-mass Spectrometry to Detect Transport Activity''' Jorgenson et al 2021. bio-protocol. [https://bio-protocol.org/e2581]
**'''Synthetic hyperacetylation of nucleosomal histones''' (protocol showing Synthetic histone acetylation inhibits DNA replication). Kajino et al 2021. RSC Chemical Biology [https://pubs.rsc.org/en/content/articlelanding/2020/CB/D0CB00029A]
** '''Xenopus laevis Oocytes Preparation for in-Cell EPR Spectroscopy''' (In-cell electron paramagnetic resonance (EPR) spectroscopy to determine the structure and dynamics of bio-macromolecules in the cell) Laura John and Malte Drescher. 2021. bio-protocol [https://bio-protocol.org/e2798]

== '''Cold Spring Harbor ''Xenopus'' Protocols''' Edited by Hazel Sive. published online 2017-2021. [http://cshprotocols.cshlp.org/search?fulltext=Xenopus&submit=yes&x=18&y=12&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic+introduction&tocsectionid=emerging+model+organisms&tocsectionid=product+protocol&tocsectionid=kit&tocsectionid=information+panel]==
Note: External links to CSHL press are provided but a subscription fee is required for access most CSHL protocols.
All CSHL protocol articles are Copyright 2018, 2019, 2020 or 2021 Cold Spring Harbor Laboratory Press- Request permission to re-use images/figures accordingly.

==='''''Husbandry and Obtaining Eggs and Embryos'''''===
**Raising and Maintaining ''Xenopus tropicalis'' from Tadpole to Adult. Maura Lane, Michael Slocum and Mustafa K Khokha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106369.long]
**Obtaining ''Xenopus tropicalis'' Eggs. Maura Lane, Emily K Mis and Mustafa K Khokha 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106344.long]
**Obtaining ''Xenopus tropicalis'' Embryos by Natural Mating. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106609.long]
**Obtaining ''Xenopus tropicalis'' Embryos by In Vitro Fertilization. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106351.long]
**Obtaining ''Xenopus laevis'' Eggs. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57590]
**Obtaining ''Xenopus laevis'' Embryos. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57598]
** Cryopreservation of ''Xenopus'' Sperm and In Vitro Fertilization Using Frozen Sperm Samples. Anna Nobel, Anita Abu-Daya, Matt Guille. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot107029.long]

=== '''''General Research Protocols''''' ===
**Microinjection of ''Xenopus tropicalis'' Embryos. Maura Lane , Emily K Mis and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107644.long]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Embryos. Jean-Pierre Saint-Jeannet. 2017 [http://cshprotocols.cshlp.org/content/2017/12/pdb.prot097287.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Oocytes. Diana Bauermeister and Tomas Pieler. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097014.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Fluorescence In Situ Hybridization of Cryosectioned ''Xenopus'' Oocytes. Christopher R. Neil and Kimberly Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.prot097030.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Whole-Mount Immunocytochemistry in ''Xenopus''. Michael W. Klymkowsky. 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.prot097295.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Microinjection of mRNAs and Oligonucleotides. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097261.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Microinjection of DNA Constructs into ''Xenopus'' Embryos for Gene Misexpression and cis-Regulatory Module Analysis. Yuuri Yasuoka and Masanori Taira. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097279.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Whole-Mount Immunofluorescence for Visualizing Endogenous Protein and Injected RNA in ''Xenopus'' Oocytes. Samantha P. Jeschonek and Kimberly L. Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097022.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Isolation of ''Xenopus'' Oocytes. Karen Newman, Tristan Aguero, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot095851.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Microinjection of ''Xenopus'' Oocytes. Tristan Aguero, Karen Newman, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot096974.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Oocyte Host-Transfer and Maternal mRNA Depletion Experiments in ''Xenopus''. Douglas W. Houston. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot096982.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Applying Tensile and Compressive Force to ''Xenopus'' Animal Cap Tissue. Georgina K. Goddard, Nawseen Tarannum, and Sarah Woolner. 2020. [http://cshprotocols.cshlp.org/content/early/2019/12/19/pdb.prot105551.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Isolation and Demembranation of ''Xenopus'' Sperm Nuclei. James W. Hazel and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099044.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Patch-Clamp and Perfusion Techniques to Study Ion Channels Expressed in ''Xenopus'' Oocytes. Guohui Zhang and Jianmin Cui. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot099051.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Heterologous Protein Expression in the ''Xenopus'' Oocyte. Jonathan S. Marchant. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096990.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Isolation and Analysis of ''Xenopus'' Germinal Vesicles. Garry T. Morgan. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096958.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**''Xenopus'' Tadpole Tissue Harvest. Matthew D. Patmann, Leena H. Shewade, Katelin A. Schneider, and Daniel R. Buchholz. 2017 [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot097675.full?sid=2def726a-9d33-480f-960a-2cb505467e1d].
**''In Vivo'' Transfection of Naked DNA into ''Xenopus'' Tadpole Tail Muscle. Lindsey Marshall, Fabrice Girardot, Barbara A. Demeneix, and Laurent Coen. 2017. [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot099366.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Cell Proliferation Analysis during ''Xenopus'' Metamorphosis: Using 5-Ethynyl-2-Deoxyuridine (EdU) to Stain Proliferating Intestinal Cells. Morihiro Okada and Yun-Bo Shi. 2017. [http://cshprotocols.cshlp.org/content/2017/9/pdb.prot097717.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''Genome Editing Protocols''''' ===
**Generating Nonmosaic Mutants in ''Xenopus'' Using CRISPR-Cas in Oocytes''' Sang-Wook Cha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot106989.long]
**CRISPR-Cas9 Mutagenesis in Xenopus tropicalis for Phenotypic Analyses in the F0 Generation and Beyond.Ira Blitz and Takuya Nakayama. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=58352]
** Modeling Human Genetic Disorders with CRISPR Technologies in ''Xenopus''. helen Willsey, Matt Guille, and Robert Grainger. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot106997.long]

=== ''''''Omics''''' ===
**Transcriptomics and Proteomics Methods for ''Xenopus'' Embryos and Tissues. Michael J. Gilchrist, Gert Jan C. Veenstra, and Ken W.Y. Cho. 2020. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/early/2019/11/26/pdb.top098350.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Mass Spectrometry-Based Absolute Quantification of Single ''Xenopus'' Embryo Proteomes. Rik G.H. Lindeboom, Arne H. Smits, Matteo Perino, Gert Jan C. Veenstra, and Michiel Vermeulen. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098376.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**INTACT Proteomics in ''Xenopus''. Lauren Wasson, Nirav M. Amin, and Frank L. Conlon. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098384.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
=== '''''Imaging''''' ===
**''Xenopus'' Tadpole Craniocardiac Imaging Using Optical Coherence Tomography. Engin Deniz, Emily K Mis, Maura Lane and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot105676.long]
**Live Imaging of Cytoskeletal Dynamics in Embryonic ''Xenopus laevis'' Growth Cones and Neural Crest Cells. Burcu Erdogan, Elizabeth Bearce, Laura Anne Lowery. 2020. [http://cshprotocols.cshlp.org/content/2021/4/pdb.prot104463.long]
**Imaging Methods in "Xenopus" Cells, Embryos, and Tadpoles. Lance A Davidson and Laura Anne Lowery. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.top105627.long]
**Imaging Structural and Functional Dynamics in ''Xenopus'' Neurons. Hollis Cline. 2021 [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.top106773.long]

=== '''''Genomes, Chromosomes, DNA, Chromatin and Epigenetics''''' ===
**''In Vitro'' Transcription Systems. Michael R. Green and Joseph Sambrook. [http://cshprotocols.cshlp.org/content/2020/1/pdb.top100750.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**ChIP-Sequencing in ''Xenopus'' Embryos. Saartje Hontelez, Ila van Kruijsbergen, and Gert Jan C. Veenstra. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097907.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Characterization in ''Xenopus laevis'' Cell-Free Egg Extracts and Embryos. Wei-Lin Wang, Takashi Onikubo, and David Shechter. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot099879.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Analysis of Chromatin Binding of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105577.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Analysis of Phosphorylation Status of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105569.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Assessing Ubiquitylation of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot104513.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Generating a Three-Dimensional Genome from ''Xenopus'' with Hi-C. Ian K. Quigley and Sven Heinz. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot098343.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**An RNA-Seq Protocol for Differential Expression Analysis. Nick D.L. Owens, Elena De Domenico, and Michael J. Gilchrist. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098368.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**DNase-seq to Study Chromatin Accessibility in Early ''Xenopus tropicalis'' Embryos. Jin Sun Cho, Ira L. Blitz, and Ken W.Y. Cho. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot098335.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Mapping Chromatin Features of ''Xenopus'' Embryos. George E. Gentsch and James C. Smith. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100263.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Reconstituting Nuclear and Chromosome Dynamics Using ''Xenopus'' Extracts. Susannah Rankin. 2019 [http://cshprotocols.cshlp.org/content/2019/3/pdb.top097105.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Extracts for Analysis of DNA Replication in a Nucleus-Free System. Justin Sparks and Johannes C. Walter. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.prot097154.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Endoplasmic Reticulum Network Formation with ''Xenopus'' Egg Extracts. Songyu Wang, Fabian B. Romano, and Tom A. Rapoport. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097204.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Chromosome Cohesion and Condensation in ''Xenopus'' Egg Extracts. Eulália M.L. da Silva and Susannah Rankin. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097121.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot104620.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Chromatin Immunoprecipitation for Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. 2018. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097725.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Endocrinology, Toxicology and Metamorphosis'''''===
**Methods for Investigating the Larval Period and Metamorphosis in ''Xenopus''. Daniel R. Buchholz and Yun-Bo Shi. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2018/10/pdb.top097667.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Frog Embryo Teratogenesis Assay—Xenopus (FETAX): Use in Alternative Preclinical Safety Assessment. Douglas J. Fort and Michael Mathis. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098319.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Following Endocrine-Disrupting Effects on Gene Expression in ''Xenopus laevis''. Petra Spirhanzlova, Michelle Leemans, Barbara A. Demeneix, and Jean-Baptiste Fini. 2019. Full-text link: [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot098301.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Larval Thymectomy of ''Xenopus laevis''. Sara Mashoof, Breanna Breaux, and Michael F. Criscitiello. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot099192.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Cell-free extracts, Cell-free systems''''' ===
**The Use of Cell-Free ''Xenopus'' Extracts to Investigate Cytoplasmic Events. Romain Gibeaux and Rebecca Heald. 2019.[[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2019/6/pdb.top097048.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Calculating the Degradation Rate of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot103481.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b].
**Special Considerations for Making Explants and Transplants with ''Xenopus tropicalis''. 2019. Marilyn Fisher and Robert M. Grainger. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]. Supplemental Material [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428/suppl/DC1].
**Filopodia-Like Structure Formation from ''Xenopus'' Egg Extracts. Helen M. Fox and Jennifer L. Gallop. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot100545.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Centromere and Kinetochore Assembly in ''Xenopus laevis'' Egg Extract. Julio C. Flores Servin and Aaron F. Straight. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot102509.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Dissecting Protein Complexes in Branching Microtubule Nucleation Using Meiotic Xenopus Egg Extracts. Jae-Geun Song and Sabine Petry. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot100958.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot097113.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Analysis of Mitotic Checkpoint Function in ''Xenopus'' Egg Extracts. Yinghui Mao. 2018 [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot099853.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Chemical Screening Using Cell-Free ''Xenopus'' Egg Extract. Matthew R. Broadus and Ethan Lee. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098277.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Robustly Cycling ''Xenopus laevis'' Cell-Free Extracts in Teflon Chambers. Jeremy B. Chang and James E. Ferrell Jr. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097212.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Microfluidic Encapsulation of Demembranated Sperm Nuclei in ''Xenopus'' Egg Extracts. John Oakey and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot102913.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Nucleus Assembly and Import in ''Xenopus laevis'' Egg Extract. Pan Chen and Daniel L. Levy. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097196.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Assembly of Spindles and Asters in ''Xenopus'' Egg Extracts. Christine M. Field and Timothy J. Mitchison. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099796.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Preparation of Cellular Extracts from ''Xenopus'' Eggs and Embryos. Matthew C. Good and Rebecca Heald. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097055.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Using the ''Xenopus'' Oocyte Toolbox. Kim L. Mowry. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/23/pdb.top095844.long]
**The Use of ''Xenopus'' for Cell Biology Applications. Anna Philpott. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57973]

=== '''''Immunobiology''''' ===
**Cryosectioning and Immunostaining of ''Xenopus'' Embryonic Tissues. Olga Ossipova and Sergei Y Sokol. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107151.long]
**Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105585.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Purifying Antibodies Raised against ''Xenopus'' Peptides. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105619.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Assessing the Immune Response When Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105593.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Lymphocyte Deficiency Induced by Sublethal Irradiation in ''Xenopus''. Louise A. Rollins-Smith and Jacques Robert. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097626.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de].
**Skin Grafting in ''Xenopus laevis'': A Technique for Assessing Development and Immunological Disparity. Yumi Izutsu. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099788.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Adoptive Transfer of Fluorescently Labeled Immune Cells in ''Xenopus''. Kun Hyoe Rhoo and Jacques Robert. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot097592.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Assessing Antibody Responses to Pathogens or Model Antigens in ''Xenopus'' by Enzyme-Linked Immunosorbent Assay (ELISA). Francisco De Jesús Andino and Jacques Robert. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099234.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''In Vivo'' Assessment of Neural Precursor Cell Cycle Kinetics in the Amphibian Retina. Morgane Locker and Muriel Perron2019. [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184], Supplemental Material [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536/suppl/DC1]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/search?hits=10&submit=yes&submit=Go&sortspec=date&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic%20introduction&tocsectionid=emerging%20model%20organisms&tocsectionid=product%20protocol&tocsectionid=kit&tocsectionid=information%20panel&format=standard&y=12&x=18&fulltext=Xenopus&FIRSTINDEX=60]
**Elicitation of Xenopus laevis Tadpole and Adult Frog Peritoneal Leukocytes. Leon Grayfer. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097642.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

==='''''Assessing Behaviour and Behavioural Phenotypes'''''===
**Schooling in Xenopus laevis Tadpoles as a Way to Assess Their Neural Development. Virgillio Lopez III, Arseny Khakhalin and CArlos Aizenman. 2021. [http://cshprotocols.cshlp.org/content/2021/5/pdb.prot106906]

==='''''Neurobiology, Electrophysiology and Tissue Regeneration'''''===
**Tetrode Recording in the ''Xenopus laevis'' Visual System Using Multichannel Glass Electrodes.M Hiramoto and Hollis Cline. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57786]
**Electrophysiological Approaches to Studying Normal and Abnormal Retinotectal Circuit Development in the ''Xenopus'' Tadpole. Kara Pratt. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57785]
**Making ''In Situ'' Whole-Cell Patch-Clamp Recordings from ''Xenopus laevis'' Tadpole Neurons. WC Li. 2021. [http://www.xenbase.org/literature/article.do?articleId=57784&method=display]
**Analysis of Visual Collision Avoidance in ''Xenopus'' Tadpoles. Arseny Khakhalin. 2020 [http://www.xenbase.org/literature/article.do?method=display&articleId=57593]
**''Ex Vivo'' Eye Tissue Culture Methods for ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101535.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Methods for Examining Lens Regeneration in ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101527.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Tracing Central Nervous System Axon Regeneration in ''Xenopus''. Kurt M. Gibbs and Ben G. Szaro. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101030.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Cell Transplantation as a Method to Investigate Spinal Cord Regeneration in Regenerative and Nonregenerative ''Xenopus'' Stages. Emilio E. Méndez-Olivos and Juan Larraín. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101006.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Infrared Laser-Mediated Gene Induction at the Single-Cell Level in the Regenerating Tail of ''Xenopus laevis'' Tadpoles. Riho Hasugata, Shinichi Hayashi, Aiko Kawasumi-Kita, Joe Sakamoto, Yasuhiro Kamei, and Hitoshi Yokoyama. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101014.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Rod-Specific Ablation Using the Nitroreductase/Metronidazole System to Investigate Regeneration in ''Xenopus''. Reyna I. Martinez-De Luna and Michael E. Zuber. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot100974.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Studies of Limb Regeneration in Larval ''Xenopus''. Anthony L. Mescher and Anton W. Neff. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100990.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864].
**Bulk Electroporation-Mediated Gene Transfer into Xenopus Tadpole Brain. Cristina Sáenz de Miera, Ethan Parr, and Robert J. Denver. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691.full?sid=d5693f80-e850-417d-a254-c0574571010e] . Supplemental Material [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691/suppl/DC1].
**Inverse Drug Screening of Bioelectric Signaling and Neurotransmitter Roles: Illustrated Using a ''Xenopus'' Tail Regeneration Assay. Kelly G. Sullivan and Michael Levin. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot099937.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Neurophysiological and Behavioral Analysis in ''Xenopus''. Ben Szaro. 2021. (Electrophysiology protocols for studies of neural circuitry in the developing optic tectum and spinal cord, vocalizations, and locomotory behavior).
[http://www.xenbase.org/literature/article.do?articleId=57966&method=display]
**Electrophysiological Recording for Study of ''Xenopus'' Retinotectal Circuitry. Y Luo , W Shen, and Hollis Cline. 2021. [http://www.xenbase.org/literature/article.do?articleId=57968&method=display]
**Bulk Dye Loading for In Vivo Calcium Imaging of Visual Responses in Populations of ''Xenopus'' Tectal Neurons. PW Hogg and K Haas. 2021. [http://www.xenbase.org/literature/article.do?method=display&articleId=57972]
** ''Xenopus'', a Model to Study Wound Healing and Regeneration: Experimental Approaches. Paula Slater, M Palacios, Juan Larraín. 2021. [http://www.xenbase.org/literature/article.do?articleId=57974&method=display]
** ''In Vivo'' Time-Lapse Imaging and Analysis of Dendritic Structural Plasticity in ''Xenopus laevis'' Tadpoles. Hai-Yun He, Chih-Yang Lin and Hollis Cline. 2021. [doi: 10.1101/pdb.prot106781] [https://www.xenbase.org/literature/article.do?articleId=57985&method=display]

==='''''Fate mapping, Explants and Transplants'''''===
**Dissecting and Culturing Animal Cap Explants. Kevin S. Dingwell and James C. Smith. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097329.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Cranial Neural Crest Explants. Hélène Cousin and Dominique Alfandari. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097394.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Einsteck Transplants. Hélène Cousin. 2019 [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097352.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Deletion and Transplantation to Test Cell Fate Commitment in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097311.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Explant Culture in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097303.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Lineage Tracing and Fate Mapping in ''Xenopus'' Embryos. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097253.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Collagen-Embedded Tumor Transplantations in ''Xenopus laevis'' Tadpoles. Maureen Banach and Jacques Robert. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097584.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]
**Organ Culture of the ''Xenopus'' Tadpole Intestine. Atsuko Ishizuya-Oka. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097683.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

===CSHL Recipes===
**Embryo Lysis Buffer (''Xenopus''). (Recipe 1) CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/7/pdb.rec106542.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**''Xenopus'' Embryo Lysis Buffer. (Recipe 2). CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec104984.full?sid=ee051c86-4c27-43bb-b30d-6ab36902aaf0]
**Lysis Buffer for ''Xenopus'' (recipe3) CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105775.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**DNA Isolation Buffer. CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106443.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Lysis Buffer for Xenopus Hi-C. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106435.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**RIPA Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.rec105932.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Amphibian Serum-Free (ASF) Medium Supplemented with Fetal Bovine Serum (FBS). CSHL 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec105387.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''Xenopus'' Eye Culture Medium. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec105072.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (1×). CSHLP. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103861.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (20×). CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.rec104406.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Injection Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105957.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**TE Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105973.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Proteinase K Buffer for ''Xenopus'' Oocytes. CSHLP 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103374.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**PBT/PBT-Plus for ''Xenopus'' Oocytes. CSHL. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103366.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Energy Mix for ''Xenopus'' Egg Extracts. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103606.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**''Xenopus'' Oocyte Culture Medium (XOCM).CSHL 2018.[http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103382.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**PBT for ''Xenopus'' Oocyte FISH.CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103630.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Blocking Solution for ''Xenopus'' Oocytes. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.rec103945.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Aldehyde Fixative (MEMFA). CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.rec102731.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Staining Buffer for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102798.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Blocking Solution for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102772.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Embryonic ''Xenopus'' Culture Media (CM). CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102699.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Hybridization Buffer (HB) for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102780.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]

='''Cold Spring Harbor ''Xenopus'' Protocols''' 2007. Edited by Hazel Sive=
**Housing and Feeding of Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.top8.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Inducing Ovulation in Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4734.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis In Vitro Fertilization and Natural Mating Methods - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4737.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Egg Collection and In Vitro Fertilization of the Western Clawed Frog Xenopus tropicalis - Showell & Conlon [http://cshprotocols.cshlp.org/content/2009/9/pdb.prot5293.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5534.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolating Xenopus laevis Testes - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4735.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Dejellying Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4731.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Removing the Vitelline Membrane from Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4732.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.ip81.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Defolliculation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5535.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5536.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Animal Cap Isolation from Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4744.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis Keller Explants - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4749.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of RNA and Preparation of Secreted Proteins from Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5538.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Calibration of the Injection Volume for Microinjection of Xenopus Oocytes and Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5537.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of DNA from Red Blood Cells in Xenopus - Sive et al. [http://cshprotocols.cshlp.org/content/2012/1/pdb.prot067462.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Investigating Morphogenesis in Xenopus Embryos: Imaging Strategies, Processing, and Analysis - Kim & Davidson [http://cshprotocols.cshlp.org/content/2013/4/pdb.top073890.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Low-Magnification Live Imaging of Xenopus Embryos for Cell and Developmental Biology - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5425.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**High-Magnification In Vivo Imaging of Xenopus Embryos for Cell and Developmental Biology - Keiserman et al. [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5427.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Preparation of Fixed Xenopus Embryos for Confocal Imaging - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5426.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Whole-Mount Fluorescence Immunocytochemistry on Xenopus Embryos - Lee et al. [http://cshprotocols.cshlp.org/content/2008/2/pdb.prot4957.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Generation of Transgenic Xenopus laevis - Kroll & Amaya - [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4838.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4839.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4840.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**In Vivo Time-Lapse Imaging of Neuronal Development in Xenopus - Ruthazer et al. [http://cshprotocols.cshlp.org/content/2013/9/pdb.top077156.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Photoconversion for Tracking the Dynamics of Cell Movement in Xenopus laevis Embryos - Chernet et al. [http://cshprotocols.cshlp.org/content/2012/6/pdb.prot068502.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Single-Cell Electroporation in Xenopus - Liu & Haas [http://cshprotocols.cshlp.org/content/2011/9/pdb.top065607.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Imaging Axon Pathfinding in Xenopus In Vivo - Leung & Holt [http://cshprotocols.cshlp.org/content/2012/9/pdb.prot070003.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**A Versatile Protocol for mRNA Electroporation of Xenopus laevis Embryos - Chernet & Levin [http://cshprotocols.cshlp.org/content/2012/4/pdb.prot067694.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]

== '''''General Research Protocols''''' ==

=== '''''Animal Husbandry''''' ===
*obtain frogs and frog housing equipment [http://www.xenbase.org/other/obtain.do]
*Xenopus Express links [http://www.xenopus.com/links.htm] - Xenopus Express husbandry [http://www.xenopus.com/husbandry.htm]
*[[Xenopus tropicalis and Xenopus laevis environmental parameter standard operating procedure (Kroll lab)]]

=== '''''[[Lab Solutions and Reagents]]''''' (click each to view expanded content) ===
*[[culture media]]
*[[immunohistochemistry]]
*[[in situ hybridization]]
*[[fixatives]]
*[[DNA/RNA preparation]]
*[[embryo manipulation/dissection]]
*[[microinjection]]
*[[general buffers and salt solutions]]

=== '''''Generating Embryos''''' ===
*[[inducing egg laying via hCG injection (Vize lab)]]
*[[anesthesia, in vitro fertilization, and natural mating of Xenopus tropicalis (Conlon lab)]]
*[[benzocaine stock, 100x (Khokha lab)]]
*[[in vitro fertilization of Xenopus laevis (Conlon lab)]]
*[[high-salt solution for egg laying (Zorn lab/Ron Laskey)]]
*[[dejellying embryos (Sive et al. 2000)]]
*[[dejellying embryos (Zorn lab)]]

=== '''''Transgenesis''''' ===
*[[transgenesis in ''Xenopus laevis'' - adapted from Amaya et al 2001 (Conlon lab)]]
*[[tadpole tail sampling for genomic DNA (Conlon lab)]]
*''Production of transgenic ''Xenopus laevis'' by restriction enzyme mediated integration and nuclear transplantation.'' Amaya E, Kroll K. J Vis Exp. 2010 Aug 21;(42). [http://www.jove.com/video/2010/production-of-transgenic-xenopus-laevis-by-restriction-enzyme-mediated-integration-and-nuclear-transplantation]
*''A method for generating transgenic frog embryos.'' Ishibashi S, Kroll KL, Amaya E. Methods Mol Biol. 2008;461:447-66. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*''A method for generating transgenic frog embryos.'' Amaya E, Kroll KL. Methods Mol Biol. 1999;97:393-414. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*Optimization Strategies for the CRISPR–Cas9 Genome-Editing System. Vejnar et al 2016. [http://cshprotocols.cshlp.org/content/2016/10/pdb.top090894.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''in situ Hybridization''''' ===
*[[in situ hybridization, brief version (Harland lab)]]
*[[whole-mount in situ hybridization (Conlon lab)]]
**[[in situ checklist (Conlon lab)]]
*[[whole-mount in situ hybridization - LNA probes (Wheeler lab)]]
*fluorescent in situs and FCIS (Vize lab)
**[[Wholemount embryo FISH / Double FISH]]
**[[Flourescin Tyramide Synthesis]]
**[[Cy3 Tyramide Synthesis]]
**[[FCIS]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''Immunohistochemistry''''' ===
*[[wholemount antibody staining (CSH Protocols) (Wallingford lab)]]
*[[wholemount antibody staining - alkaline phosphatase detection (Conlon lab)]]
*[[wholemount antibody staining - adapted from Dan Weeks' protocol (Conlon lab)]]
*[[immunostaining sectioned embryos (Conlon lab)]]
*[[hydrochloric acid antigen retrieval (Zorn lab)]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''ChIP protocols''''' ===
*'''Chromatin immunoprecipitation analysis of Xenopus embryos.''', Methods Mol Biol. 2012;917:279-92. [http://www.xenbase.org/literature/article.do?method=display&articleId=45851] [http://www.ncbi.nlm.nih.gov/pubmed/22956095]
**Akkers RC, Jacobi UG, Veenstra GJ.
*'''Chromatin immunoprecipitation in early Xenopus laevis embryos.''', Dev Dyn. 2009 Jun;238(6):1422-32. [http://www.xenbase.org/literature/article.do?method=display&articleId=39423] [http://www.ncbi.nlm.nih.gov/pubmed/19334278]
**Blythe SA, Reid CD, Kessler DS, Klein PS.

=== '''''Histology''''' ===
*[[cryosectioning ''Xenopus'' embryos (Conlon lab)]]

=== '''''Embryo Staining Protocols (non in situ)''''' ===
*[[benzidine-peroxidase staining for blood (Conlon lab)]]
*[[benzidine-peroxidase staining for blood (Thomsen lab)]]
*[[apoptosis via TUNEL (Veenstra lab)]]
*[[TUNEL staining of whole Xenopus embryos - Harland protocol (Conlon lab)]]

=== '''''Immuno and Protein Protocols''''' ===
*[[immunoprecipitation (Stukenberg lab)]]
*[[immunofluorescence with biotinylated antibodies (Stukenberg lab)]]
*Purifying Polyclonal Antibodies using Affinity Columns/Chromatography
*[[Making an Affinity Column]]
*[[Running an Affinity Column]]
*[[whole embryo protein extraction with freon (Conlon lab)]]
*[[SDS-PAGE gels (Conlon lab)]]
*[[western blot protocol (Conlon lab)]]
*[[silver staining protein gels (Stukenberg lab)]]

=== '''''Nucleic Acid Protocols''''' ===
*RNA Isolation
**[[Preparation of RNA Using Proteinase K/LiCl (Sive et al. 2000)]]
**[[Preparation of RNA (In Vitro Transcription) (Sive et al. 2000)]]
*DNA Isolation
**[[Extraction of DNA from Single Embryos (Sive et al. 2000)]]
**[[Isolation of DNA from Red Blood Cells (Sive et al. 2000)]]
*RNaseH-mediated RNA depletion
**[[Optimized design of antisense oligomers for targeted rRNA depletion (Phelps et al 2020))]] [[https://doi.org/10.1093/nar/gkaa1072]]

=== '''''[[Oocyte Transfer Technique (Heasman/Wylie labs)]]''''' ===
*[[Part 1: Choosing Oligodeoxyribonucleotides (ODNs)]]
*[[Part 2: ODN Modification]]
*[[Part 3: Host Transfer Technique]]
*[[Part 4: Fertilization and Development]]

=== '''''Xenopus Oocyte and Egg Extracts''''' ===
*[[crude interphase egg extract (Shechter lab)]]
*[[isolation of chromatin from egg extract and histone recovery (Shechter lab)]]
*[[preparation of cycling egg extract (Shechter lab)]]
*[[cycling extracts, mike's protocol (Stukenberg lab)]]
*[[cycling extracts, sara's protocol (Stukenberg lab)]]
*[[CSF extract, mike's protocol (Stukenberg lab)]]
*[[CSF extract, sara's protocol (Stukenberg lab)]]
*[[assaying H1 kinase in extracts (Stukenberg lab)]]
*[[frozen egg extracts that retain spindle assembly activity (Takagi and Shimamoto, 2017)]]

=== '''''Xenopus Tissue Culture''''' ===
*[[tissue culture of ''Xenopus'' cell lines S3, XTC (Stukenberg lab)]]
*[[isolation of mitotic chromosomes from XTC cells (Stukenberg lab)]]
*[[in-vitro kinetochore-microtubule binding assays (Stukenberg lab)]]

Protocols

2025-05-30T18:09:32Z

Christina: /* RNA solubility, RNA interference (RNAi) */

__TOC__

== '''''Books for Xenopus Research and Protocols''''' ==
*'''''Xenopus'' Protocols: Post-Genomic Approaches. ''' Hoppler and Vize, 2012 [http://xenbase.org/literature/book.do?method=display&bookId=262]
**expanded second edition with novel approaches inspired by ''X. tropicalis'' genome sequencing.

*'''The Laboratory ''Xenopus sp''.''' Green, 2010 [http://www.xenbase.org/literature/book.do?method=display&bookId=222]
**a highly detailed manual containing Xenopus husbandry, management, veterinary care, and frog and equipment vendor information

*'''''Xenopus'' Protocols: Cell Biology and Signal Transduction''' Liu (First edition), 2006 [http://www.xenbase.org/literature/book.do?method=display&bookId=206]
**step-by-step laboratory instructions, an introduction outlining the principles behind the technique, lists of the necessary equipment and reagents.

*'''Color Atlas of ''Xenopus laevis'' Histology''', Wiechmann and Wirsig-Wiechmann, 2003 [http://www.xenbase.org/literature/book.do?method=display&bookId=82]
**central source on the microscopic anatomy of cells, tissues, and major organs of Xenopus laevis.

*'''Early Development of ''Xenopus laevis'': A Laboratory Manual''', Sive, Grainger, and Harland, 2000 [http://www.xenbase.org/literature/book.do?method=display&bookId=22]
**comprehensive collection of protocols for the study of early development in Xenopus embryos

*'''Transgenic ''Xenopus'': Microinjection Methods and Developmental Neurobiology''', Seidman and Soreq, 1997 [http://www.xenbase.org/literature/book.do?method=display&bookId=203]
**referenced guide to the use of microinjected embryos studying the role and regulation of nervous system proteins during development.

*'''Atlas of ''Xenopus'' Development''', Bernardini, Prati, Bonetti, and Scari, 1999 [http://www.xenbase.org/literature/book.do?method=display&bookId=202]
**scanning, transmission, and light microscopy images of Xenopus embryonic development.

*'''Normal Table of ''Xenopus laevis'' (Daudin)''', Nieuwkoop and Faber (Third edition), 1994 [http://www.xenbase.org/literature/book.do?method=display&bookId=1]
**a systematic and chronological description of Xenopus laevis development.

*'''Xenopus laevis: Practical Uses in Cell and Molecular Biology, Volume 36''', Kay and Peng, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=204]
**detailed description of a wide range of uses for Xenopus laevis oocytes and embryos in cell and molecular biology.

*'''The early development of ''Xenopus laevis''. An atlas of the histology''', Hausen and Riebesell, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=124]
**detailed histological sections of Xenopus embryonic development

== '''''Xenopus Protocols and Video Demostrations: Online Resources''''' ==

=== '''Journal of Visualized Experiments (JOVE) - ''Xenopus'' embryo''' [http://www.jove.com/keyword/xenopus+embryo] - excellent video demonstrations and detailed protocols for a wide variety of lab protocols using ''Xenopus'' ===
**Methods for Tattooing ''Xenopus laevis'' with a Rotary Tattoo Machine- Super and Landino.[https://app.jove.com/t/67086/methods-for-tattooing-xenopus-laevis-with-a-rotary-tattoo-machine]
**Functional Evaluation of Olfactory Pathways in Living Xenopus Tadpoles - Terni et al. -[https://www.jove.com/video/58028/functional-evaluation-of-olfactory-pathways-in-living-xenopus-tadpoles]
**Obtaining Eggs from ''Xenopus laevi''s Females - Cross & Powers [http://www.jove.com/video/890/obtaining-eggs-from-xenopus-laevis-females]
**Microinjection of ''Xenopus laevis'' Oocytes - Cohen et al. - [http://www.jove.com/video/1106/microinjection-of-xenopus-laevis-oocytes]
**Fertilization of ''Xenopus'' oocytes, Host Transfer Method - Schneider et al. [http://www.jove.com/video/1864/fertilization-of-xenopus-oocytes-using-the-host-transfer-method]
**Tissue Determination Using Animal Cap Transplant (ACT) Assay in ''X. laevis'' - Viczian & Zuber [http://www.jove.com/video/1932/tissue-determination-using-animal-cap-transplant-act-assay-xenopus]
**Blastomere Explants to Test for Cell Fate Commitment - Grant et al. [http://www.jove.com/video/4458/blastomere-explants-to-test-for-cell-fate-commitment-during-embryonic]
**Transgenic ''Xenopus laevis'' by Restriction Enzyme Mediated Integration and Nuclear Transplantation - Amaya & Kroll [http://www.jove.com/video/2010/production-transgenic-xenopus-laevis-restriction-enzyme-mediated]
**Organizer and Animal Pole Explants from ''X. laevis'' Embryos and Cell Adhesion Assay - Ogata & Cho [http://www.jove.com/video/187/dissection-organizer-animal-pole-explants-from-xenopus-laevis-embryos]
**Plastic Embedding and Sectioning of ''X. laevis'' Embryos - Ogata1 et al. [http://www.jove.com/video/188/plastic-embedding-and-sectioning-of-xenopus-laevis-embryos]
**Visualizing RNA Localization in ''Xenopus'' Oocytes - Gagnon & Mowry [http://www.jove.com/video/1704/visualizing-rna-localization-in-xenopus-oocytes]
**Neural Explant Cultures from ''Xenopus laevis'' - Lowery et al. [http://www.jove.com/video/4232/neural-explant-cultures-from-xenopus-laevis]
**Translocation of Fluorescent Proteins in ''Xenopus'' Ectoderm in Response to Wnt Signaling - Itoh & Sokol [http://www.jove.com/video/2700/polarized-translocation-fluorescent-proteins-xenopus-ectoderm]
**Dissection, Culture, and Analysis of ''X. laevis'' Embryonic Retinal Tissue - McDonough et al. [http://www.jove.com/video/4377/dissection-culture-analysis-xenopus-laevis-embryonic-retinal]
**''X. tropicalis'' Egg Extracts to Identify Microtubule-associated RNAs - Sharp & Blower [http://www.jove.com/video/50434/production-xenopus-tropicalis-egg-extracts-to-identify-microtubule]
**Electroporation of Craniofacial Mesenchyme - Tabler & Liu [http://www.jove.com/video/3381/electroporation-of-craniofacial-mesenchyme]
**Electrophysiological Recording from ''Xenopus'' Nerve-muscle Co-cultures - Yazejian et al. [http://www.jove.com/video/50253/simultaneous-pre-post-synaptic-electrophysiological-recording-from]
**Single Cell Electroporation ''in vivo'' within the Intact Developing Brain - Hewapathirane & Haas - [http://www.jove.com/video/705/single-cell-electroporation-in-vivo-within-the-intact-developing-brain]
**Live-cell Imaging and Quantitative Analysis of Embryonic Epithelial Cells - Joshi & Davidson [http://www.jove.com/video/1949/live-cell-imaging-quantitative-analysis-embryonic-epithelial-cells]
**Preparation and Fractionation of ''Xenopus laevis'' Egg Extracts - Cross & Powers [http://www.jove.com/video/891/preparation-and-fractionation-of-xenopus-laevis-egg-extracts]
**In Vitro Nuclear Assembly Using Fractionated ''Xenopus'' Egg Extracts - Cross & Powers [http://www.jove.com/video/908/in-vitro-nuclear-assembly-using-fractionated-xenopus-egg-extracts]
**Study of the DNA Damage Checkpoint using ''Xenopus'' Egg Extracts - Willis et al. [http://www.jove.com/video/4449/study-of-the-dna-damage-checkpoint-using-xenopus-egg-extracts]
**Two Types of Assays for Detecting Frog Sperm Chemoattraction - Burnett et al. [http://www.jove.com/video/3407/two-types-of-assays-for-detecting-frog-sperm-chemoattraction]
**Comparative in vivo Study of gp96 Adjuvanticity in ''X. laevis'' - Nedelkovska et al. 2010. [http://www.jove.com/video/2026/comparative-vivo-study-gp96-adjuvanticity-frog-xenopus]
**Patch Clamp and Perfusion Techniques - Yang et al. [http://www.jove.com/video/2269/patch-clamp-perfusion-techniques-for-studying-ion-channels-expressed]
**Patch Clamp Recording of Ion Channels - Brown et al. [http://www.jove.com/video/936/patch-clamp-recording-of-ion-channels-expressed-in-xenopus-oocytes]
**Cation Transport in ''Xenopus'' Oocytes - Dürr et al.[http://www.jove.com/video/50201/measuring-cation-transport-nak-hk-atpase-xenopus-oocytes-atomic]
**Stem cell-like ''Xenopus'' Embryonic Explants to Study Early Neural Developmental Features In Vitro and In Vivo - BC.Durand [https://www.jove.com/video/53474/stem-cell-like-xenopus-embryonic-explants-to-study-early-neural]
**Dissection of ''Xenopus laevis'' Neural Crest for ''in vitro'' Explant Culture or in vivo Transplantation - Millet & Monsoro-Burq [https://www.jove.com/video/51118/dissection-xenopus-laevis-neural-crest-for-vitro-explant-culture-or]
**Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living ''Xenopus'' Tadpoles- Dao, Jones and Elul. 2019. [https://www.jove.com/video/60123/microinjection-dna-into-eyebuds-xenopus-laevis-embryos-imaging-gfp]
**Reconstitution Of β-catenin Degradation In Xenopus Egg Extract. Chen et al. 2020. [https://www.jove.com/video/51425/reconstitution-of-catenin-degradation-in-xenopus-egg-extract]

** ''Xenopus laevis'' Egg Extract Preparation and Live Imaging Methods for Visualizing Dynamic Cytoplasmic Organization. Xianrui Cheng and James Farrell. 2021. [https://www.jove.com/t/61923/xenopus-laevis-egg-extract-preparation-live-imaging-methods-for]

=='''Protocols published in non-CSHL Journals and from ''Xenopus'' labs -click to view-'''==
==='''''Xenopus Sperm cryopreservation'''''===
**'''Transitioning from a research protocol to a scalable applied pathway for Xenopus laevis sperm cryopreservation at a national stock center: The effect of cryoprotectants'''. Lucía Arregui, Jack C. Koch, Terrence R. Tiersch. 2023. JEZ-B molecular and Developmental Evolution[https://doi.org/10.1002/jez.b.23228]
**'''Cryopreservation of sperm of ''Xenopus laevis'' and ''Xenopus tropicalis''''' Michael G. Sargent, Timothy J. Mohun. 2005, Genesis [https://doi.org/10.1002/gene.20092]

==='''''Quantifying Transcription in Early Embryos'''''===
**'''Quantifying Nascent Transcription in Early Embryogenesis'''. Hui Chen. 2025, Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_9.]

=== '''''Genotyping, Genome & DNA damage/repair''''' ===
** '''Sex determination in ''Xenopus laevis'' via RT-PCR.''' Amin Eimanifar, John Aufderheide, Suzanne Z. Schneider, Henry Krueger, and Sean Gallagher 2019. "Development of an in vitro diagnostic method to determine the genotypic sex of Xenopus laevis". PeerJ January 1, 2019; 7 e6886. [[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6500372/]]
**'''Studying the DNA damage response in embryonic systems''' ElenaLo Furno, Bénédicte Recolin, Siemvan der Laan, Antoine Aze and Domenico Maiorano. 2021. Chapter Five in ''Methods in Enzymology'' Volume 661, 2021, Pages 95-120.[https://www.sciencedirect.com/science/article/abs/pii/S0076687921003591?via%3Dihub]
** '''Genotyping Tadpoles''' Susannah Rankin's Lab Protocol to determine gender via PCR. [[https://rankin.omrf.org/wp-content/uploads/sites/13/2013/02/tadpole-genotype.pdf]]

=== '''''Behavioral Assays''''' ===
**'''Precisely controlled visual stimulation to study experience-dependent neural plasticity in ''Xenopus'' tadpoles'''. Masaki Hiramoto and Hollis Cline. 2021. STAR Protocols | January 15, 2021. [[https://star-protocols.cell.com/protocols/361utm_campaign=STMJ_132371_CP_ALT&utm_medium=email&utm_acid=75932977&SIS_ID=&dgcid=STMJ_132371_CP_ALT&CMX_ID=&utm_in=DM121371&utm_source=AC_]]
=== '''''Cell cycle, Chromatin and Spindles''''' ===
**'''Immunochemical Detection of Modified Cytosine Species in Lampbrush Chromatin'''. Garry T. Morgan. 2021. In: Ruzov A., Gering M. (eds) DNA Modifications. Methods in Molecular Biology, vol 2198. Humana, New York, NY. [https://doi.org/10.1007/978-1-0716-0876-0_13]

=== '''''Electrophysiology''''' ===
**'''K+ Release Assay and K+ Measurement in Oocyte Assay'''. Hong Li. 2020. Bio-Protocol 10(21),Nov5,2020, [DOI:10.21769/BioProtoc.3802]
**'''A novel voltage-clamp/dye uptake assay reveals saturable transport of molecules through CALHM1 and connexin channels.''' Gaete et al 2021. J Gen Physiol. Nov 2; 152(11): e202012607. Published online 2020 Oct 19. doi: 10.1085/jgp.202012607. PMID:33074302.
**'''Electrophysiological Approaches for the Study of Ion Channel Function''' Guiying Cui, Kirsten A. Cottrill and Nael A. McCarty. 2021. Structure and Function of Membrane Proteins pp 49-67. [https://link.springer.com/protocol/10.1007%2F978-1-0716-1394-8_4]

=== '''''Xenopus oocyte cell free extract''''' ===
**'''DNA Damage Response in ''Xenopus laevis'' Cell-Free Extracts.''' Tomas Aparicio Casado and Jean Gautier 2021. In: Cell Cycle Checkpoints pp 103-144. Part of the Methods in Molecular Biology book series (MIMB, volume 2267). [https://link.springer.com/protocol/10.1007%2F978-1-0716-1217-0_8]
**'''Microfluidic encapsulation of ''Xenopus laevis'' cell-free extracts using hydrogel photolithography.''' Zachary Geisterfer, John Oakey, Jesse Gatlin. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100221 [[https://www.sciencedirect.com/science/article/pii/S2666166720302082?via%3Dihub]]
**''''Affinity Purification of Label-free Tubulins from ''Xenopus'' Egg Extracts''''. Sebastian Reusch, Abin Biswas, William Graham Hirst, SimoneReber. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100151. [[https://www.sciencedirect.com/science/article/pii/S2666166720301386?via%3Dihub]]
** '''Multi-purpose yolk-depleted embryo extracts.'''['''a freon-free protocol'''] Veenstra GJ, Destrée OH, Wolffe AP. Translation of maternal TATA-binding protein mRNA potentiates basal but not activated transcription in ''Xenopus'' embryos at the midblastula transition. Mol Cell Biol. 1999 Dec;19(12):7972-82. [[doi: 10.1128/MCB.19.12.7972]]. PMID: 10567523; PMCID: PMC84882.

=== '''''Xenopus oocyte expression system''''' ===
**'''The ''Xenopus'' Oocyte as an Expression System for Functional Analyses of Fish Aquaporins.''' François Chauvigné, Alba Ferré, Joan Cerdà. 2021. In: Dosch R. (eds) Germline Development in the Zebrafish. Methods in Molecular Biology, vol 2218. Humana, New York, NY. [[https://doi.org/10.1007/978-1-0716-0970-5_2]]

=== '''''Gene knock out/knock down and Gene Editing''''' ===
**'''Vivo-Morpholinos: a non-peptide transporter delivers Morpholinos into a wide array of mouse tissues'''. Morcos et al 2008. Biotechniques December 1, 2008; 45 (6): 613-4, 616, 618 passim. [https://www.xenbase.org/literature/article.do?articleId=58662&method=display] This technique has been used successfully in ''Xenopus'', See Ivanova et al 2021. XB-ART-58553, PubMed ID: 34676214. [https://www.xenbase.org/literature/article.do?articleId=58553&method=display]
**'''Morpholino Studies in ''Xenopus'' Brain Development''', Bestman and Cline. 2019, Brain Development pp 377-395, Part of the Methods in Molecular Biology book series (MIMB, volume 2047) [[https://link.springer.com/protocol/10.1007%2F978-1-4939-9732-9_21#enumeration]]
** '''Protocol for RNaseH-mediated RNA depletion''', see Supplemental file from "Optimized design of antisense oligomers for targeted rRNA depletion" by Wesley A. Phelps, Anne E. Carlson, Miler T. Lee, 2020. Nucleic Acids Research, gkaa1072, [[https://doi.org/10.1093/nar/gkaa1072]]
**'''Optimized design of antisense oligomers for targeted rRNA depletion'''. Wesley Phelps, Anne Carlson and Miler Lee. 2021. Nucleic Acids Res January 1, 2021; 49 (1): e5. [[https://academic.oup.com/nar/article/49/1/e5/5998392]] The Oligo-ASST Web tool is available at The Oligo-ASST Web tool is available at https://mtleelab.pitt.edu/oligo. Source code for the Web application and a command-line version of the program are available at https://github.com/MTLeeLab/oligo-asst.
===''RNA solubility, RNA interference (RNAi)''===
**'''A fractionation-based protocol to investigate RNA solubility phase transition during Xenopus oocyte maturation'''. Hyojeong Hwang, Meng Ma, Jing Yang 2024. STAR protocols. https://doi.org/10.1016/j.xpro.2023.102830 (OA in Cell Press- download PDF here: https://www.sciencedirect.com/science/article/pii/S2666166723007979?via%3Dihub)

**'''Application of the RNA interference technique to Xenopus embryos: Specific reduction of the β-catenin gene products by short double-stranded RNA produced by recombinant human Dicer''' Yuta Tagami, Takeshi Nishiyama, Michiko Omote, and Minoru Watanabe. 2021. Dev Growth Differ November 24, 2021;[https://onlinelibrary.wiley.com/doi/10.1111/dgd.12762]

===''Preparing HiChIP Libraries''===
**'''HiChIP to Study 3D Genome Organization in Xenopus tropicalis Embryos.'''. Amina Hussein, Ira Blitz & Ken Cho. 2025.
Methods Mol Biol Jan 01;2923:63-74. [https://doi: 10.1007/978-1-0716-4522-2_5.]

=== '''''MassSpec & Proteomics''''' ===
** '''Quantitative Proteomics of ''Xenopus'' Embryos I, Sample Preparation'''. Meera Gupta, Matthew Sonnett, Lillia Ryazanova, Marc Presler, Martin Wühr . 2018. Methods Mol Biol 2018;1865:175-194. [[doi: 10.1007/978-1-4939-8784-9_13]]
**'''High-throughput transporter identification for small molecules in cell factories with validation using ''Xenopus'' expression assays.''' See ''Transportome-wide engineering of Saccharomyces cerevisiae,''. 2021. Wang et al. Metabolic Engineering.[https://www.sciencedirect.com/science/article/pii/S109671762100015X?via%3Dihub]
**'''Uptake Assays in Xenopus laevis Oocytes Using Liquid Chromatography-mass Spectrometry to Detect Transport Activity''' Jorgenson et al 2021. bio-protocol. [https://bio-protocol.org/e2581]
**'''Synthetic hyperacetylation of nucleosomal histones''' (protocol showing Synthetic histone acetylation inhibits DNA replication). Kajino et al 2021. RSC Chemical Biology [https://pubs.rsc.org/en/content/articlelanding/2020/CB/D0CB00029A]
** '''Xenopus laevis Oocytes Preparation for in-Cell EPR Spectroscopy''' (In-cell electron paramagnetic resonance (EPR) spectroscopy to determine the structure and dynamics of bio-macromolecules in the cell) Laura John and Malte Drescher. 2021. bio-protocol [https://bio-protocol.org/e2798]

== '''Cold Spring Harbor ''Xenopus'' Protocols''' Edited by Hazel Sive. published online 2017-2021. [http://cshprotocols.cshlp.org/search?fulltext=Xenopus&submit=yes&x=18&y=12&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic+introduction&tocsectionid=emerging+model+organisms&tocsectionid=product+protocol&tocsectionid=kit&tocsectionid=information+panel]==
Note: External links to CSHL press are provided but a subscription fee is required for access most CSHL protocols.
All CSHL protocol articles are Copyright 2018, 2019, 2020 or 2021 Cold Spring Harbor Laboratory Press- Request permission to re-use images/figures accordingly.

==='''''Husbandry and Obtaining Eggs and Embryos'''''===
**Raising and Maintaining ''Xenopus tropicalis'' from Tadpole to Adult. Maura Lane, Michael Slocum and Mustafa K Khokha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106369.long]
**Obtaining ''Xenopus tropicalis'' Eggs. Maura Lane, Emily K Mis and Mustafa K Khokha 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106344.long]
**Obtaining ''Xenopus tropicalis'' Embryos by Natural Mating. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106609.long]
**Obtaining ''Xenopus tropicalis'' Embryos by In Vitro Fertilization. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106351.long]
**Obtaining ''Xenopus laevis'' Eggs. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57590]
**Obtaining ''Xenopus laevis'' Embryos. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57598]
** Cryopreservation of ''Xenopus'' Sperm and In Vitro Fertilization Using Frozen Sperm Samples. Anna Nobel, Anita Abu-Daya, Matt Guille. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot107029.long]

=== '''''General Research Protocols''''' ===
**Microinjection of ''Xenopus tropicalis'' Embryos. Maura Lane , Emily K Mis and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107644.long]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Embryos. Jean-Pierre Saint-Jeannet. 2017 [http://cshprotocols.cshlp.org/content/2017/12/pdb.prot097287.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Oocytes. Diana Bauermeister and Tomas Pieler. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097014.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Fluorescence In Situ Hybridization of Cryosectioned ''Xenopus'' Oocytes. Christopher R. Neil and Kimberly Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.prot097030.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Whole-Mount Immunocytochemistry in ''Xenopus''. Michael W. Klymkowsky. 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.prot097295.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Microinjection of mRNAs and Oligonucleotides. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097261.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Microinjection of DNA Constructs into ''Xenopus'' Embryos for Gene Misexpression and cis-Regulatory Module Analysis. Yuuri Yasuoka and Masanori Taira. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097279.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Whole-Mount Immunofluorescence for Visualizing Endogenous Protein and Injected RNA in ''Xenopus'' Oocytes. Samantha P. Jeschonek and Kimberly L. Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097022.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Isolation of ''Xenopus'' Oocytes. Karen Newman, Tristan Aguero, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot095851.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Microinjection of ''Xenopus'' Oocytes. Tristan Aguero, Karen Newman, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot096974.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Oocyte Host-Transfer and Maternal mRNA Depletion Experiments in ''Xenopus''. Douglas W. Houston. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot096982.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Applying Tensile and Compressive Force to ''Xenopus'' Animal Cap Tissue. Georgina K. Goddard, Nawseen Tarannum, and Sarah Woolner. 2020. [http://cshprotocols.cshlp.org/content/early/2019/12/19/pdb.prot105551.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Isolation and Demembranation of ''Xenopus'' Sperm Nuclei. James W. Hazel and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099044.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Patch-Clamp and Perfusion Techniques to Study Ion Channels Expressed in ''Xenopus'' Oocytes. Guohui Zhang and Jianmin Cui. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot099051.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Heterologous Protein Expression in the ''Xenopus'' Oocyte. Jonathan S. Marchant. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096990.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Isolation and Analysis of ''Xenopus'' Germinal Vesicles. Garry T. Morgan. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096958.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**''Xenopus'' Tadpole Tissue Harvest. Matthew D. Patmann, Leena H. Shewade, Katelin A. Schneider, and Daniel R. Buchholz. 2017 [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot097675.full?sid=2def726a-9d33-480f-960a-2cb505467e1d].
**''In Vivo'' Transfection of Naked DNA into ''Xenopus'' Tadpole Tail Muscle. Lindsey Marshall, Fabrice Girardot, Barbara A. Demeneix, and Laurent Coen. 2017. [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot099366.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Cell Proliferation Analysis during ''Xenopus'' Metamorphosis: Using 5-Ethynyl-2-Deoxyuridine (EdU) to Stain Proliferating Intestinal Cells. Morihiro Okada and Yun-Bo Shi. 2017. [http://cshprotocols.cshlp.org/content/2017/9/pdb.prot097717.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''Genome Editing Protocols''''' ===
**Generating Nonmosaic Mutants in ''Xenopus'' Using CRISPR-Cas in Oocytes''' Sang-Wook Cha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot106989.long]
**CRISPR-Cas9 Mutagenesis in Xenopus tropicalis for Phenotypic Analyses in the F0 Generation and Beyond.Ira Blitz and Takuya Nakayama. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=58352]
** Modeling Human Genetic Disorders with CRISPR Technologies in ''Xenopus''. helen Willsey, Matt Guille, and Robert Grainger. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot106997.long]

=== ''''''Omics''''' ===
**Transcriptomics and Proteomics Methods for ''Xenopus'' Embryos and Tissues. Michael J. Gilchrist, Gert Jan C. Veenstra, and Ken W.Y. Cho. 2020. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/early/2019/11/26/pdb.top098350.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Mass Spectrometry-Based Absolute Quantification of Single ''Xenopus'' Embryo Proteomes. Rik G.H. Lindeboom, Arne H. Smits, Matteo Perino, Gert Jan C. Veenstra, and Michiel Vermeulen. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098376.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**INTACT Proteomics in ''Xenopus''. Lauren Wasson, Nirav M. Amin, and Frank L. Conlon. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098384.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
=== '''''Imaging''''' ===
**''Xenopus'' Tadpole Craniocardiac Imaging Using Optical Coherence Tomography. Engin Deniz, Emily K Mis, Maura Lane and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot105676.long]
**Live Imaging of Cytoskeletal Dynamics in Embryonic ''Xenopus laevis'' Growth Cones and Neural Crest Cells. Burcu Erdogan, Elizabeth Bearce, Laura Anne Lowery. 2020. [http://cshprotocols.cshlp.org/content/2021/4/pdb.prot104463.long]
**Imaging Methods in "Xenopus" Cells, Embryos, and Tadpoles. Lance A Davidson and Laura Anne Lowery. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.top105627.long]
**Imaging Structural and Functional Dynamics in ''Xenopus'' Neurons. Hollis Cline. 2021 [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.top106773.long]

=== '''''Genomes, Chromosomes, DNA, Chromatin and Epigenetics''''' ===
**''In Vitro'' Transcription Systems. Michael R. Green and Joseph Sambrook. [http://cshprotocols.cshlp.org/content/2020/1/pdb.top100750.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**ChIP-Sequencing in ''Xenopus'' Embryos. Saartje Hontelez, Ila van Kruijsbergen, and Gert Jan C. Veenstra. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097907.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Characterization in ''Xenopus laevis'' Cell-Free Egg Extracts and Embryos. Wei-Lin Wang, Takashi Onikubo, and David Shechter. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot099879.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Analysis of Chromatin Binding of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105577.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Analysis of Phosphorylation Status of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105569.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Assessing Ubiquitylation of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot104513.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Generating a Three-Dimensional Genome from ''Xenopus'' with Hi-C. Ian K. Quigley and Sven Heinz. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot098343.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**An RNA-Seq Protocol for Differential Expression Analysis. Nick D.L. Owens, Elena De Domenico, and Michael J. Gilchrist. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098368.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**DNase-seq to Study Chromatin Accessibility in Early ''Xenopus tropicalis'' Embryos. Jin Sun Cho, Ira L. Blitz, and Ken W.Y. Cho. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot098335.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Mapping Chromatin Features of ''Xenopus'' Embryos. George E. Gentsch and James C. Smith. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100263.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Reconstituting Nuclear and Chromosome Dynamics Using ''Xenopus'' Extracts. Susannah Rankin. 2019 [http://cshprotocols.cshlp.org/content/2019/3/pdb.top097105.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Extracts for Analysis of DNA Replication in a Nucleus-Free System. Justin Sparks and Johannes C. Walter. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.prot097154.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Endoplasmic Reticulum Network Formation with ''Xenopus'' Egg Extracts. Songyu Wang, Fabian B. Romano, and Tom A. Rapoport. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097204.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Chromosome Cohesion and Condensation in ''Xenopus'' Egg Extracts. Eulália M.L. da Silva and Susannah Rankin. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097121.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot104620.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Chromatin Immunoprecipitation for Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. 2018. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097725.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Endocrinology, Toxicology and Metamorphosis'''''===
**Methods for Investigating the Larval Period and Metamorphosis in ''Xenopus''. Daniel R. Buchholz and Yun-Bo Shi. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2018/10/pdb.top097667.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Frog Embryo Teratogenesis Assay—Xenopus (FETAX): Use in Alternative Preclinical Safety Assessment. Douglas J. Fort and Michael Mathis. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098319.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Following Endocrine-Disrupting Effects on Gene Expression in ''Xenopus laevis''. Petra Spirhanzlova, Michelle Leemans, Barbara A. Demeneix, and Jean-Baptiste Fini. 2019. Full-text link: [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot098301.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Larval Thymectomy of ''Xenopus laevis''. Sara Mashoof, Breanna Breaux, and Michael F. Criscitiello. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot099192.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Cell-free extracts, Cell-free systems''''' ===
**The Use of Cell-Free ''Xenopus'' Extracts to Investigate Cytoplasmic Events. Romain Gibeaux and Rebecca Heald. 2019.[[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2019/6/pdb.top097048.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Calculating the Degradation Rate of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot103481.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b].
**Special Considerations for Making Explants and Transplants with ''Xenopus tropicalis''. 2019. Marilyn Fisher and Robert M. Grainger. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]. Supplemental Material [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428/suppl/DC1].
**Filopodia-Like Structure Formation from ''Xenopus'' Egg Extracts. Helen M. Fox and Jennifer L. Gallop. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot100545.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Centromere and Kinetochore Assembly in ''Xenopus laevis'' Egg Extract. Julio C. Flores Servin and Aaron F. Straight. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot102509.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Dissecting Protein Complexes in Branching Microtubule Nucleation Using Meiotic Xenopus Egg Extracts. Jae-Geun Song and Sabine Petry. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot100958.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot097113.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Analysis of Mitotic Checkpoint Function in ''Xenopus'' Egg Extracts. Yinghui Mao. 2018 [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot099853.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Chemical Screening Using Cell-Free ''Xenopus'' Egg Extract. Matthew R. Broadus and Ethan Lee. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098277.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Robustly Cycling ''Xenopus laevis'' Cell-Free Extracts in Teflon Chambers. Jeremy B. Chang and James E. Ferrell Jr. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097212.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Microfluidic Encapsulation of Demembranated Sperm Nuclei in ''Xenopus'' Egg Extracts. John Oakey and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot102913.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Nucleus Assembly and Import in ''Xenopus laevis'' Egg Extract. Pan Chen and Daniel L. Levy. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097196.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Assembly of Spindles and Asters in ''Xenopus'' Egg Extracts. Christine M. Field and Timothy J. Mitchison. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099796.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Preparation of Cellular Extracts from ''Xenopus'' Eggs and Embryos. Matthew C. Good and Rebecca Heald. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097055.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Using the ''Xenopus'' Oocyte Toolbox. Kim L. Mowry. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/23/pdb.top095844.long]
**The Use of ''Xenopus'' for Cell Biology Applications. Anna Philpott. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57973]

=== '''''Immunobiology''''' ===
**Cryosectioning and Immunostaining of ''Xenopus'' Embryonic Tissues. Olga Ossipova and Sergei Y Sokol. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107151.long]
**Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105585.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Purifying Antibodies Raised against ''Xenopus'' Peptides. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105619.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Assessing the Immune Response When Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105593.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Lymphocyte Deficiency Induced by Sublethal Irradiation in ''Xenopus''. Louise A. Rollins-Smith and Jacques Robert. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097626.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de].
**Skin Grafting in ''Xenopus laevis'': A Technique for Assessing Development and Immunological Disparity. Yumi Izutsu. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099788.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Adoptive Transfer of Fluorescently Labeled Immune Cells in ''Xenopus''. Kun Hyoe Rhoo and Jacques Robert. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot097592.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Assessing Antibody Responses to Pathogens or Model Antigens in ''Xenopus'' by Enzyme-Linked Immunosorbent Assay (ELISA). Francisco De Jesús Andino and Jacques Robert. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099234.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''In Vivo'' Assessment of Neural Precursor Cell Cycle Kinetics in the Amphibian Retina. Morgane Locker and Muriel Perron2019. [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184], Supplemental Material [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536/suppl/DC1]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/search?hits=10&submit=yes&submit=Go&sortspec=date&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic%20introduction&tocsectionid=emerging%20model%20organisms&tocsectionid=product%20protocol&tocsectionid=kit&tocsectionid=information%20panel&format=standard&y=12&x=18&fulltext=Xenopus&FIRSTINDEX=60]
**Elicitation of Xenopus laevis Tadpole and Adult Frog Peritoneal Leukocytes. Leon Grayfer. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097642.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

==='''''Assessing Behaviour and Behavioural Phenotypes'''''===
**Schooling in Xenopus laevis Tadpoles as a Way to Assess Their Neural Development. Virgillio Lopez III, Arseny Khakhalin and CArlos Aizenman. 2021. [http://cshprotocols.cshlp.org/content/2021/5/pdb.prot106906]

==='''''Neurobiology, Electrophysiology and Tissue Regeneration'''''===
**Tetrode Recording in the ''Xenopus laevis'' Visual System Using Multichannel Glass Electrodes.M Hiramoto and Hollis Cline. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57786]
**Electrophysiological Approaches to Studying Normal and Abnormal Retinotectal Circuit Development in the ''Xenopus'' Tadpole. Kara Pratt. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57785]
**Making ''In Situ'' Whole-Cell Patch-Clamp Recordings from ''Xenopus laevis'' Tadpole Neurons. WC Li. 2021. [http://www.xenbase.org/literature/article.do?articleId=57784&method=display]
**Analysis of Visual Collision Avoidance in ''Xenopus'' Tadpoles. Arseny Khakhalin. 2020 [http://www.xenbase.org/literature/article.do?method=display&articleId=57593]
**''Ex Vivo'' Eye Tissue Culture Methods for ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101535.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Methods for Examining Lens Regeneration in ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101527.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Tracing Central Nervous System Axon Regeneration in ''Xenopus''. Kurt M. Gibbs and Ben G. Szaro. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101030.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Cell Transplantation as a Method to Investigate Spinal Cord Regeneration in Regenerative and Nonregenerative ''Xenopus'' Stages. Emilio E. Méndez-Olivos and Juan Larraín. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101006.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Infrared Laser-Mediated Gene Induction at the Single-Cell Level in the Regenerating Tail of ''Xenopus laevis'' Tadpoles. Riho Hasugata, Shinichi Hayashi, Aiko Kawasumi-Kita, Joe Sakamoto, Yasuhiro Kamei, and Hitoshi Yokoyama. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101014.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Rod-Specific Ablation Using the Nitroreductase/Metronidazole System to Investigate Regeneration in ''Xenopus''. Reyna I. Martinez-De Luna and Michael E. Zuber. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot100974.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Studies of Limb Regeneration in Larval ''Xenopus''. Anthony L. Mescher and Anton W. Neff. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100990.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864].
**Bulk Electroporation-Mediated Gene Transfer into Xenopus Tadpole Brain. Cristina Sáenz de Miera, Ethan Parr, and Robert J. Denver. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691.full?sid=d5693f80-e850-417d-a254-c0574571010e] . Supplemental Material [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691/suppl/DC1].
**Inverse Drug Screening of Bioelectric Signaling and Neurotransmitter Roles: Illustrated Using a ''Xenopus'' Tail Regeneration Assay. Kelly G. Sullivan and Michael Levin. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot099937.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Neurophysiological and Behavioral Analysis in ''Xenopus''. Ben Szaro. 2021. (Electrophysiology protocols for studies of neural circuitry in the developing optic tectum and spinal cord, vocalizations, and locomotory behavior).
[http://www.xenbase.org/literature/article.do?articleId=57966&method=display]
**Electrophysiological Recording for Study of ''Xenopus'' Retinotectal Circuitry. Y Luo , W Shen, and Hollis Cline. 2021. [http://www.xenbase.org/literature/article.do?articleId=57968&method=display]
**Bulk Dye Loading for In Vivo Calcium Imaging of Visual Responses in Populations of ''Xenopus'' Tectal Neurons. PW Hogg and K Haas. 2021. [http://www.xenbase.org/literature/article.do?method=display&articleId=57972]
** ''Xenopus'', a Model to Study Wound Healing and Regeneration: Experimental Approaches. Paula Slater, M Palacios, Juan Larraín. 2021. [http://www.xenbase.org/literature/article.do?articleId=57974&method=display]
** ''In Vivo'' Time-Lapse Imaging and Analysis of Dendritic Structural Plasticity in ''Xenopus laevis'' Tadpoles. Hai-Yun He, Chih-Yang Lin and Hollis Cline. 2021. [doi: 10.1101/pdb.prot106781] [https://www.xenbase.org/literature/article.do?articleId=57985&method=display]

==='''''Fate mapping, Explants and Transplants'''''===
**Dissecting and Culturing Animal Cap Explants. Kevin S. Dingwell and James C. Smith. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097329.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Cranial Neural Crest Explants. Hélène Cousin and Dominique Alfandari. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097394.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Einsteck Transplants. Hélène Cousin. 2019 [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097352.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Deletion and Transplantation to Test Cell Fate Commitment in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097311.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Explant Culture in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097303.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Lineage Tracing and Fate Mapping in ''Xenopus'' Embryos. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097253.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Collagen-Embedded Tumor Transplantations in ''Xenopus laevis'' Tadpoles. Maureen Banach and Jacques Robert. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097584.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]
**Organ Culture of the ''Xenopus'' Tadpole Intestine. Atsuko Ishizuya-Oka. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097683.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

===CSHL Recipes===
**Embryo Lysis Buffer (''Xenopus''). (Recipe 1) CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/7/pdb.rec106542.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**''Xenopus'' Embryo Lysis Buffer. (Recipe 2). CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec104984.full?sid=ee051c86-4c27-43bb-b30d-6ab36902aaf0]
**Lysis Buffer for ''Xenopus'' (recipe3) CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105775.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**DNA Isolation Buffer. CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106443.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Lysis Buffer for Xenopus Hi-C. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106435.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**RIPA Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.rec105932.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Amphibian Serum-Free (ASF) Medium Supplemented with Fetal Bovine Serum (FBS). CSHL 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec105387.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''Xenopus'' Eye Culture Medium. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec105072.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (1×). CSHLP. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103861.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (20×). CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.rec104406.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Injection Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105957.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**TE Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105973.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Proteinase K Buffer for ''Xenopus'' Oocytes. CSHLP 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103374.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**PBT/PBT-Plus for ''Xenopus'' Oocytes. CSHL. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103366.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Energy Mix for ''Xenopus'' Egg Extracts. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103606.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**''Xenopus'' Oocyte Culture Medium (XOCM).CSHL 2018.[http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103382.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**PBT for ''Xenopus'' Oocyte FISH.CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103630.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Blocking Solution for ''Xenopus'' Oocytes. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.rec103945.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Aldehyde Fixative (MEMFA). CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.rec102731.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Staining Buffer for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102798.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Blocking Solution for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102772.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Embryonic ''Xenopus'' Culture Media (CM). CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102699.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Hybridization Buffer (HB) for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102780.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]

='''Cold Spring Harbor ''Xenopus'' Protocols''' 2007. Edited by Hazel Sive=
**Housing and Feeding of Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.top8.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Inducing Ovulation in Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4734.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis In Vitro Fertilization and Natural Mating Methods - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4737.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Egg Collection and In Vitro Fertilization of the Western Clawed Frog Xenopus tropicalis - Showell & Conlon [http://cshprotocols.cshlp.org/content/2009/9/pdb.prot5293.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5534.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolating Xenopus laevis Testes - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4735.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Dejellying Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4731.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Removing the Vitelline Membrane from Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4732.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.ip81.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Defolliculation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5535.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5536.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Animal Cap Isolation from Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4744.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis Keller Explants - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4749.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of RNA and Preparation of Secreted Proteins from Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5538.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Calibration of the Injection Volume for Microinjection of Xenopus Oocytes and Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5537.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of DNA from Red Blood Cells in Xenopus - Sive et al. [http://cshprotocols.cshlp.org/content/2012/1/pdb.prot067462.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Investigating Morphogenesis in Xenopus Embryos: Imaging Strategies, Processing, and Analysis - Kim & Davidson [http://cshprotocols.cshlp.org/content/2013/4/pdb.top073890.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Low-Magnification Live Imaging of Xenopus Embryos for Cell and Developmental Biology - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5425.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**High-Magnification In Vivo Imaging of Xenopus Embryos for Cell and Developmental Biology - Keiserman et al. [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5427.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Preparation of Fixed Xenopus Embryos for Confocal Imaging - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5426.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Whole-Mount Fluorescence Immunocytochemistry on Xenopus Embryos - Lee et al. [http://cshprotocols.cshlp.org/content/2008/2/pdb.prot4957.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Generation of Transgenic Xenopus laevis - Kroll & Amaya - [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4838.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4839.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4840.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**In Vivo Time-Lapse Imaging of Neuronal Development in Xenopus - Ruthazer et al. [http://cshprotocols.cshlp.org/content/2013/9/pdb.top077156.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Photoconversion for Tracking the Dynamics of Cell Movement in Xenopus laevis Embryos - Chernet et al. [http://cshprotocols.cshlp.org/content/2012/6/pdb.prot068502.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Single-Cell Electroporation in Xenopus - Liu & Haas [http://cshprotocols.cshlp.org/content/2011/9/pdb.top065607.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Imaging Axon Pathfinding in Xenopus In Vivo - Leung & Holt [http://cshprotocols.cshlp.org/content/2012/9/pdb.prot070003.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**A Versatile Protocol for mRNA Electroporation of Xenopus laevis Embryos - Chernet & Levin [http://cshprotocols.cshlp.org/content/2012/4/pdb.prot067694.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]

== '''''General Research Protocols''''' ==

=== '''''Animal Husbandry''''' ===
*obtain frogs and frog housing equipment [http://www.xenbase.org/other/obtain.do]
*Xenopus Express links [http://www.xenopus.com/links.htm] - Xenopus Express husbandry [http://www.xenopus.com/husbandry.htm]
*[[Xenopus tropicalis and Xenopus laevis environmental parameter standard operating procedure (Kroll lab)]]

=== '''''[[Lab Solutions and Reagents]]''''' (click each to view expanded content) ===
*[[culture media]]
*[[immunohistochemistry]]
*[[in situ hybridization]]
*[[fixatives]]
*[[DNA/RNA preparation]]
*[[embryo manipulation/dissection]]
*[[microinjection]]
*[[general buffers and salt solutions]]

=== '''''Generating Embryos''''' ===
*[[inducing egg laying via hCG injection (Vize lab)]]
*[[anesthesia, in vitro fertilization, and natural mating of Xenopus tropicalis (Conlon lab)]]
*[[benzocaine stock, 100x (Khokha lab)]]
*[[in vitro fertilization of Xenopus laevis (Conlon lab)]]
*[[high-salt solution for egg laying (Zorn lab/Ron Laskey)]]
*[[dejellying embryos (Sive et al. 2000)]]
*[[dejellying embryos (Zorn lab)]]

=== '''''Transgenesis''''' ===
*[[transgenesis in ''Xenopus laevis'' - adapted from Amaya et al 2001 (Conlon lab)]]
*[[tadpole tail sampling for genomic DNA (Conlon lab)]]
*''Production of transgenic ''Xenopus laevis'' by restriction enzyme mediated integration and nuclear transplantation.'' Amaya E, Kroll K. J Vis Exp. 2010 Aug 21;(42). [http://www.jove.com/video/2010/production-of-transgenic-xenopus-laevis-by-restriction-enzyme-mediated-integration-and-nuclear-transplantation]
*''A method for generating transgenic frog embryos.'' Ishibashi S, Kroll KL, Amaya E. Methods Mol Biol. 2008;461:447-66. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*''A method for generating transgenic frog embryos.'' Amaya E, Kroll KL. Methods Mol Biol. 1999;97:393-414. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*Optimization Strategies for the CRISPR–Cas9 Genome-Editing System. Vejnar et al 2016. [http://cshprotocols.cshlp.org/content/2016/10/pdb.top090894.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''in situ Hybridization''''' ===
*[[in situ hybridization, brief version (Harland lab)]]
*[[whole-mount in situ hybridization (Conlon lab)]]
**[[in situ checklist (Conlon lab)]]
*[[whole-mount in situ hybridization - LNA probes (Wheeler lab)]]
*fluorescent in situs and FCIS (Vize lab)
**[[Wholemount embryo FISH / Double FISH]]
**[[Flourescin Tyramide Synthesis]]
**[[Cy3 Tyramide Synthesis]]
**[[FCIS]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''Immunohistochemistry''''' ===
*[[wholemount antibody staining (CSH Protocols) (Wallingford lab)]]
*[[wholemount antibody staining - alkaline phosphatase detection (Conlon lab)]]
*[[wholemount antibody staining - adapted from Dan Weeks' protocol (Conlon lab)]]
*[[immunostaining sectioned embryos (Conlon lab)]]
*[[hydrochloric acid antigen retrieval (Zorn lab)]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''ChIP protocols''''' ===
*'''Chromatin immunoprecipitation analysis of Xenopus embryos.''', Methods Mol Biol. 2012;917:279-92. [http://www.xenbase.org/literature/article.do?method=display&articleId=45851] [http://www.ncbi.nlm.nih.gov/pubmed/22956095]
**Akkers RC, Jacobi UG, Veenstra GJ.
*'''Chromatin immunoprecipitation in early Xenopus laevis embryos.''', Dev Dyn. 2009 Jun;238(6):1422-32. [http://www.xenbase.org/literature/article.do?method=display&articleId=39423] [http://www.ncbi.nlm.nih.gov/pubmed/19334278]
**Blythe SA, Reid CD, Kessler DS, Klein PS.

=== '''''Histology''''' ===
*[[cryosectioning ''Xenopus'' embryos (Conlon lab)]]

=== '''''Embryo Staining Protocols (non in situ)''''' ===
*[[benzidine-peroxidase staining for blood (Conlon lab)]]
*[[benzidine-peroxidase staining for blood (Thomsen lab)]]
*[[apoptosis via TUNEL (Veenstra lab)]]
*[[TUNEL staining of whole Xenopus embryos - Harland protocol (Conlon lab)]]

=== '''''Immuno and Protein Protocols''''' ===
*[[immunoprecipitation (Stukenberg lab)]]
*[[immunofluorescence with biotinylated antibodies (Stukenberg lab)]]
*Purifying Polyclonal Antibodies using Affinity Columns/Chromatography
*[[Making an Affinity Column]]
*[[Running an Affinity Column]]
*[[whole embryo protein extraction with freon (Conlon lab)]]
*[[SDS-PAGE gels (Conlon lab)]]
*[[western blot protocol (Conlon lab)]]
*[[silver staining protein gels (Stukenberg lab)]]

=== '''''Nucleic Acid Protocols''''' ===
*RNA Isolation
**[[Preparation of RNA Using Proteinase K/LiCl (Sive et al. 2000)]]
**[[Preparation of RNA (In Vitro Transcription) (Sive et al. 2000)]]
*DNA Isolation
**[[Extraction of DNA from Single Embryos (Sive et al. 2000)]]
**[[Isolation of DNA from Red Blood Cells (Sive et al. 2000)]]
*RNaseH-mediated RNA depletion
**[[Optimized design of antisense oligomers for targeted rRNA depletion (Phelps et al 2020))]] [[https://doi.org/10.1093/nar/gkaa1072]]

=== '''''[[Oocyte Transfer Technique (Heasman/Wylie labs)]]''''' ===
*[[Part 1: Choosing Oligodeoxyribonucleotides (ODNs)]]
*[[Part 2: ODN Modification]]
*[[Part 3: Host Transfer Technique]]
*[[Part 4: Fertilization and Development]]

=== '''''Xenopus Oocyte and Egg Extracts''''' ===
*[[crude interphase egg extract (Shechter lab)]]
*[[isolation of chromatin from egg extract and histone recovery (Shechter lab)]]
*[[preparation of cycling egg extract (Shechter lab)]]
*[[cycling extracts, mike's protocol (Stukenberg lab)]]
*[[cycling extracts, sara's protocol (Stukenberg lab)]]
*[[CSF extract, mike's protocol (Stukenberg lab)]]
*[[CSF extract, sara's protocol (Stukenberg lab)]]
*[[assaying H1 kinase in extracts (Stukenberg lab)]]
*[[frozen egg extracts that retain spindle assembly activity (Takagi and Shimamoto, 2017)]]

=== '''''Xenopus Tissue Culture''''' ===
*[[tissue culture of ''Xenopus'' cell lines S3, XTC (Stukenberg lab)]]
*[[isolation of mitotic chromosomes from XTC cells (Stukenberg lab)]]
*[[in-vitro kinetochore-microtubule binding assays (Stukenberg lab)]]

Protocols

2025-05-30T17:30:50Z

Christina: /* Xenopus Sperm cryopreservation */

__TOC__

== '''''Books for Xenopus Research and Protocols''''' ==
*'''''Xenopus'' Protocols: Post-Genomic Approaches. ''' Hoppler and Vize, 2012 [http://xenbase.org/literature/book.do?method=display&bookId=262]
**expanded second edition with novel approaches inspired by ''X. tropicalis'' genome sequencing.

*'''The Laboratory ''Xenopus sp''.''' Green, 2010 [http://www.xenbase.org/literature/book.do?method=display&bookId=222]
**a highly detailed manual containing Xenopus husbandry, management, veterinary care, and frog and equipment vendor information

*'''''Xenopus'' Protocols: Cell Biology and Signal Transduction''' Liu (First edition), 2006 [http://www.xenbase.org/literature/book.do?method=display&bookId=206]
**step-by-step laboratory instructions, an introduction outlining the principles behind the technique, lists of the necessary equipment and reagents.

*'''Color Atlas of ''Xenopus laevis'' Histology''', Wiechmann and Wirsig-Wiechmann, 2003 [http://www.xenbase.org/literature/book.do?method=display&bookId=82]
**central source on the microscopic anatomy of cells, tissues, and major organs of Xenopus laevis.

*'''Early Development of ''Xenopus laevis'': A Laboratory Manual''', Sive, Grainger, and Harland, 2000 [http://www.xenbase.org/literature/book.do?method=display&bookId=22]
**comprehensive collection of protocols for the study of early development in Xenopus embryos

*'''Transgenic ''Xenopus'': Microinjection Methods and Developmental Neurobiology''', Seidman and Soreq, 1997 [http://www.xenbase.org/literature/book.do?method=display&bookId=203]
**referenced guide to the use of microinjected embryos studying the role and regulation of nervous system proteins during development.

*'''Atlas of ''Xenopus'' Development''', Bernardini, Prati, Bonetti, and Scari, 1999 [http://www.xenbase.org/literature/book.do?method=display&bookId=202]
**scanning, transmission, and light microscopy images of Xenopus embryonic development.

*'''Normal Table of ''Xenopus laevis'' (Daudin)''', Nieuwkoop and Faber (Third edition), 1994 [http://www.xenbase.org/literature/book.do?method=display&bookId=1]
**a systematic and chronological description of Xenopus laevis development.

*'''Xenopus laevis: Practical Uses in Cell and Molecular Biology, Volume 36''', Kay and Peng, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=204]
**detailed description of a wide range of uses for Xenopus laevis oocytes and embryos in cell and molecular biology.

*'''The early development of ''Xenopus laevis''. An atlas of the histology''', Hausen and Riebesell, 1991 [http://www.xenbase.org/literature/book.do?method=display&bookId=124]
**detailed histological sections of Xenopus embryonic development

== '''''Xenopus Protocols and Video Demostrations: Online Resources''''' ==

=== '''Journal of Visualized Experiments (JOVE) - ''Xenopus'' embryo''' [http://www.jove.com/keyword/xenopus+embryo] - excellent video demonstrations and detailed protocols for a wide variety of lab protocols using ''Xenopus'' ===
**Methods for Tattooing ''Xenopus laevis'' with a Rotary Tattoo Machine- Super and Landino.[https://app.jove.com/t/67086/methods-for-tattooing-xenopus-laevis-with-a-rotary-tattoo-machine]
**Functional Evaluation of Olfactory Pathways in Living Xenopus Tadpoles - Terni et al. -[https://www.jove.com/video/58028/functional-evaluation-of-olfactory-pathways-in-living-xenopus-tadpoles]
**Obtaining Eggs from ''Xenopus laevi''s Females - Cross & Powers [http://www.jove.com/video/890/obtaining-eggs-from-xenopus-laevis-females]
**Microinjection of ''Xenopus laevis'' Oocytes - Cohen et al. - [http://www.jove.com/video/1106/microinjection-of-xenopus-laevis-oocytes]
**Fertilization of ''Xenopus'' oocytes, Host Transfer Method - Schneider et al. [http://www.jove.com/video/1864/fertilization-of-xenopus-oocytes-using-the-host-transfer-method]
**Tissue Determination Using Animal Cap Transplant (ACT) Assay in ''X. laevis'' - Viczian & Zuber [http://www.jove.com/video/1932/tissue-determination-using-animal-cap-transplant-act-assay-xenopus]
**Blastomere Explants to Test for Cell Fate Commitment - Grant et al. [http://www.jove.com/video/4458/blastomere-explants-to-test-for-cell-fate-commitment-during-embryonic]
**Transgenic ''Xenopus laevis'' by Restriction Enzyme Mediated Integration and Nuclear Transplantation - Amaya & Kroll [http://www.jove.com/video/2010/production-transgenic-xenopus-laevis-restriction-enzyme-mediated]
**Organizer and Animal Pole Explants from ''X. laevis'' Embryos and Cell Adhesion Assay - Ogata & Cho [http://www.jove.com/video/187/dissection-organizer-animal-pole-explants-from-xenopus-laevis-embryos]
**Plastic Embedding and Sectioning of ''X. laevis'' Embryos - Ogata1 et al. [http://www.jove.com/video/188/plastic-embedding-and-sectioning-of-xenopus-laevis-embryos]
**Visualizing RNA Localization in ''Xenopus'' Oocytes - Gagnon & Mowry [http://www.jove.com/video/1704/visualizing-rna-localization-in-xenopus-oocytes]
**Neural Explant Cultures from ''Xenopus laevis'' - Lowery et al. [http://www.jove.com/video/4232/neural-explant-cultures-from-xenopus-laevis]
**Translocation of Fluorescent Proteins in ''Xenopus'' Ectoderm in Response to Wnt Signaling - Itoh & Sokol [http://www.jove.com/video/2700/polarized-translocation-fluorescent-proteins-xenopus-ectoderm]
**Dissection, Culture, and Analysis of ''X. laevis'' Embryonic Retinal Tissue - McDonough et al. [http://www.jove.com/video/4377/dissection-culture-analysis-xenopus-laevis-embryonic-retinal]
**''X. tropicalis'' Egg Extracts to Identify Microtubule-associated RNAs - Sharp & Blower [http://www.jove.com/video/50434/production-xenopus-tropicalis-egg-extracts-to-identify-microtubule]
**Electroporation of Craniofacial Mesenchyme - Tabler & Liu [http://www.jove.com/video/3381/electroporation-of-craniofacial-mesenchyme]
**Electrophysiological Recording from ''Xenopus'' Nerve-muscle Co-cultures - Yazejian et al. [http://www.jove.com/video/50253/simultaneous-pre-post-synaptic-electrophysiological-recording-from]
**Single Cell Electroporation ''in vivo'' within the Intact Developing Brain - Hewapathirane & Haas - [http://www.jove.com/video/705/single-cell-electroporation-in-vivo-within-the-intact-developing-brain]
**Live-cell Imaging and Quantitative Analysis of Embryonic Epithelial Cells - Joshi & Davidson [http://www.jove.com/video/1949/live-cell-imaging-quantitative-analysis-embryonic-epithelial-cells]
**Preparation and Fractionation of ''Xenopus laevis'' Egg Extracts - Cross & Powers [http://www.jove.com/video/891/preparation-and-fractionation-of-xenopus-laevis-egg-extracts]
**In Vitro Nuclear Assembly Using Fractionated ''Xenopus'' Egg Extracts - Cross & Powers [http://www.jove.com/video/908/in-vitro-nuclear-assembly-using-fractionated-xenopus-egg-extracts]
**Study of the DNA Damage Checkpoint using ''Xenopus'' Egg Extracts - Willis et al. [http://www.jove.com/video/4449/study-of-the-dna-damage-checkpoint-using-xenopus-egg-extracts]
**Two Types of Assays for Detecting Frog Sperm Chemoattraction - Burnett et al. [http://www.jove.com/video/3407/two-types-of-assays-for-detecting-frog-sperm-chemoattraction]
**Comparative in vivo Study of gp96 Adjuvanticity in ''X. laevis'' - Nedelkovska et al. 2010. [http://www.jove.com/video/2026/comparative-vivo-study-gp96-adjuvanticity-frog-xenopus]
**Patch Clamp and Perfusion Techniques - Yang et al. [http://www.jove.com/video/2269/patch-clamp-perfusion-techniques-for-studying-ion-channels-expressed]
**Patch Clamp Recording of Ion Channels - Brown et al. [http://www.jove.com/video/936/patch-clamp-recording-of-ion-channels-expressed-in-xenopus-oocytes]
**Cation Transport in ''Xenopus'' Oocytes - Dürr et al.[http://www.jove.com/video/50201/measuring-cation-transport-nak-hk-atpase-xenopus-oocytes-atomic]
**Stem cell-like ''Xenopus'' Embryonic Explants to Study Early Neural Developmental Features In Vitro and In Vivo - BC.Durand [https://www.jove.com/video/53474/stem-cell-like-xenopus-embryonic-explants-to-study-early-neural]
**Dissection of ''Xenopus laevis'' Neural Crest for ''in vitro'' Explant Culture or in vivo Transplantation - Millet & Monsoro-Burq [https://www.jove.com/video/51118/dissection-xenopus-laevis-neural-crest-for-vitro-explant-culture-or]
**Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living ''Xenopus'' Tadpoles- Dao, Jones and Elul. 2019. [https://www.jove.com/video/60123/microinjection-dna-into-eyebuds-xenopus-laevis-embryos-imaging-gfp]
**Reconstitution Of β-catenin Degradation In Xenopus Egg Extract. Chen et al. 2020. [https://www.jove.com/video/51425/reconstitution-of-catenin-degradation-in-xenopus-egg-extract]

** ''Xenopus laevis'' Egg Extract Preparation and Live Imaging Methods for Visualizing Dynamic Cytoplasmic Organization. Xianrui Cheng and James Farrell. 2021. [https://www.jove.com/t/61923/xenopus-laevis-egg-extract-preparation-live-imaging-methods-for]

=='''Protocols published in non-CSHL Journals and from ''Xenopus'' labs -click to view-'''==
==='''''Xenopus Sperm cryopreservation'''''===
**'''Transitioning from a research protocol to a scalable applied pathway for Xenopus laevis sperm cryopreservation at a national stock center: The effect of cryoprotectants'''. Lucía Arregui, Jack C. Koch, Terrence R. Tiersch. 2023. JEZ-B molecular and Developmental Evolution[https://doi.org/10.1002/jez.b.23228]
**'''Cryopreservation of sperm of ''Xenopus laevis'' and ''Xenopus tropicalis''''' Michael G. Sargent, Timothy J. Mohun. 2005, Genesis [https://doi.org/10.1002/gene.20092]

==='''''Quantifying Transcription in Early Embryos'''''===
**'''Quantifying Nascent Transcription in Early Embryogenesis'''. Hui Chen. 2025, Methods Mol Biol [https://doi: 10.1007/978-1-0716-4522-2_9.]

=== '''''Genotyping, Genome & DNA damage/repair''''' ===
** '''Sex determination in ''Xenopus laevis'' via RT-PCR.''' Amin Eimanifar, John Aufderheide, Suzanne Z. Schneider, Henry Krueger, and Sean Gallagher 2019. "Development of an in vitro diagnostic method to determine the genotypic sex of Xenopus laevis". PeerJ January 1, 2019; 7 e6886. [[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6500372/]]
**'''Studying the DNA damage response in embryonic systems''' ElenaLo Furno, Bénédicte Recolin, Siemvan der Laan, Antoine Aze and Domenico Maiorano. 2021. Chapter Five in ''Methods in Enzymology'' Volume 661, 2021, Pages 95-120.[https://www.sciencedirect.com/science/article/abs/pii/S0076687921003591?via%3Dihub]
** '''Genotyping Tadpoles''' Susannah Rankin's Lab Protocol to determine gender via PCR. [[https://rankin.omrf.org/wp-content/uploads/sites/13/2013/02/tadpole-genotype.pdf]]

=== '''''Behavioral Assays''''' ===
**'''Precisely controlled visual stimulation to study experience-dependent neural plasticity in ''Xenopus'' tadpoles'''. Masaki Hiramoto and Hollis Cline. 2021. STAR Protocols | January 15, 2021. [[https://star-protocols.cell.com/protocols/361utm_campaign=STMJ_132371_CP_ALT&utm_medium=email&utm_acid=75932977&SIS_ID=&dgcid=STMJ_132371_CP_ALT&CMX_ID=&utm_in=DM121371&utm_source=AC_]]
=== '''''Cell cycle, Chromatin and Spindles''''' ===
**'''Immunochemical Detection of Modified Cytosine Species in Lampbrush Chromatin'''. Garry T. Morgan. 2021. In: Ruzov A., Gering M. (eds) DNA Modifications. Methods in Molecular Biology, vol 2198. Humana, New York, NY. [https://doi.org/10.1007/978-1-0716-0876-0_13]

=== '''''Electrophysiology''''' ===
**'''K+ Release Assay and K+ Measurement in Oocyte Assay'''. Hong Li. 2020. Bio-Protocol 10(21),Nov5,2020, [DOI:10.21769/BioProtoc.3802]
**'''A novel voltage-clamp/dye uptake assay reveals saturable transport of molecules through CALHM1 and connexin channels.''' Gaete et al 2021. J Gen Physiol. Nov 2; 152(11): e202012607. Published online 2020 Oct 19. doi: 10.1085/jgp.202012607. PMID:33074302.
**'''Electrophysiological Approaches for the Study of Ion Channel Function''' Guiying Cui, Kirsten A. Cottrill and Nael A. McCarty. 2021. Structure and Function of Membrane Proteins pp 49-67. [https://link.springer.com/protocol/10.1007%2F978-1-0716-1394-8_4]

=== '''''Xenopus oocyte cell free extract''''' ===
**'''DNA Damage Response in ''Xenopus laevis'' Cell-Free Extracts.''' Tomas Aparicio Casado and Jean Gautier 2021. In: Cell Cycle Checkpoints pp 103-144. Part of the Methods in Molecular Biology book series (MIMB, volume 2267). [https://link.springer.com/protocol/10.1007%2F978-1-0716-1217-0_8]
**'''Microfluidic encapsulation of ''Xenopus laevis'' cell-free extracts using hydrogel photolithography.''' Zachary Geisterfer, John Oakey, Jesse Gatlin. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100221 [[https://www.sciencedirect.com/science/article/pii/S2666166720302082?via%3Dihub]]
**''''Affinity Purification of Label-free Tubulins from ''Xenopus'' Egg Extracts''''. Sebastian Reusch, Abin Biswas, William Graham Hirst, SimoneReber. 2020. STAR Protocols Volume 1, Issue 3, 18 December 2020, 100151. [[https://www.sciencedirect.com/science/article/pii/S2666166720301386?via%3Dihub]]
** '''Multi-purpose yolk-depleted embryo extracts.'''['''a freon-free protocol'''] Veenstra GJ, Destrée OH, Wolffe AP. Translation of maternal TATA-binding protein mRNA potentiates basal but not activated transcription in ''Xenopus'' embryos at the midblastula transition. Mol Cell Biol. 1999 Dec;19(12):7972-82. [[doi: 10.1128/MCB.19.12.7972]]. PMID: 10567523; PMCID: PMC84882.

=== '''''Xenopus oocyte expression system''''' ===
**'''The ''Xenopus'' Oocyte as an Expression System for Functional Analyses of Fish Aquaporins.''' François Chauvigné, Alba Ferré, Joan Cerdà. 2021. In: Dosch R. (eds) Germline Development in the Zebrafish. Methods in Molecular Biology, vol 2218. Humana, New York, NY. [[https://doi.org/10.1007/978-1-0716-0970-5_2]]

=== '''''Gene knock out/knock down and Gene Editing''''' ===
**'''Vivo-Morpholinos: a non-peptide transporter delivers Morpholinos into a wide array of mouse tissues'''. Morcos et al 2008. Biotechniques December 1, 2008; 45 (6): 613-4, 616, 618 passim. [https://www.xenbase.org/literature/article.do?articleId=58662&method=display] This technique has been used successfully in ''Xenopus'', See Ivanova et al 2021. XB-ART-58553, PubMed ID: 34676214. [https://www.xenbase.org/literature/article.do?articleId=58553&method=display]
**'''Morpholino Studies in ''Xenopus'' Brain Development''', Bestman and Cline. 2019, Brain Development pp 377-395, Part of the Methods in Molecular Biology book series (MIMB, volume 2047) [[https://link.springer.com/protocol/10.1007%2F978-1-4939-9732-9_21#enumeration]]
** '''Protocol for RNaseH-mediated RNA depletion''', see Supplemental file from "Optimized design of antisense oligomers for targeted rRNA depletion" by Wesley A. Phelps, Anne E. Carlson, Miler T. Lee, 2020. Nucleic Acids Research, gkaa1072, [[https://doi.org/10.1093/nar/gkaa1072]]
**'''Optimized design of antisense oligomers for targeted rRNA depletion'''. Wesley Phelps, Anne Carlson and Miler Lee. 2021. Nucleic Acids Res January 1, 2021; 49 (1): e5. [[https://academic.oup.com/nar/article/49/1/e5/5998392]] The Oligo-ASST Web tool is available at The Oligo-ASST Web tool is available at https://mtleelab.pitt.edu/oligo. Source code for the Web application and a command-line version of the program are available at https://github.com/MTLeeLab/oligo-asst.
===''RNA solubility, RNA interference (RNAi)''===
**'''A fractionation-based protocol to investigate RNA solubility phase transition during Xenopus oocyte maturation'''. Hyojeong Hwang, Meng Ma, Jing Yang 2024. STAR protocols. https://doi.org/10.1016/j.xpro.2023.102830 (OA in Cell Press- download PDF here: https://www.sciencedirect.com/science/article/pii/S2666166723007979?via%3Dihub)

**'''Application of the RNA interference technique to Xenopus embryos: Specific reduction of the β-catenin gene products by short double-stranded RNA produced by recombinant human Dicer''' Yuta Tagami, Takeshi Nishiyama, Michiko Omote, and Minoru Watanabe. 2021. Dev Growth Differ November 24, 2021;[https://onlinelibrary.wiley.com/doi/10.1111/dgd.12762]

=== '''''MassSpec & Proteomics''''' ===
** '''Quantitative Proteomics of ''Xenopus'' Embryos I, Sample Preparation'''. Meera Gupta, Matthew Sonnett, Lillia Ryazanova, Marc Presler, Martin Wühr . 2018. Methods Mol Biol 2018;1865:175-194. [[doi: 10.1007/978-1-4939-8784-9_13]]
**'''High-throughput transporter identification for small molecules in cell factories with validation using ''Xenopus'' expression assays.''' See ''Transportome-wide engineering of Saccharomyces cerevisiae,''. 2021. Wang et al. Metabolic Engineering.[https://www.sciencedirect.com/science/article/pii/S109671762100015X?via%3Dihub]
**'''Uptake Assays in Xenopus laevis Oocytes Using Liquid Chromatography-mass Spectrometry to Detect Transport Activity''' Jorgenson et al 2021. bio-protocol. [https://bio-protocol.org/e2581]
**'''Synthetic hyperacetylation of nucleosomal histones''' (protocol showing Synthetic histone acetylation inhibits DNA replication). Kajino et al 2021. RSC Chemical Biology [https://pubs.rsc.org/en/content/articlelanding/2020/CB/D0CB00029A]
** '''Xenopus laevis Oocytes Preparation for in-Cell EPR Spectroscopy''' (In-cell electron paramagnetic resonance (EPR) spectroscopy to determine the structure and dynamics of bio-macromolecules in the cell) Laura John and Malte Drescher. 2021. bio-protocol [https://bio-protocol.org/e2798]

== '''Cold Spring Harbor ''Xenopus'' Protocols''' Edited by Hazel Sive. published online 2017-2021. [http://cshprotocols.cshlp.org/search?fulltext=Xenopus&submit=yes&x=18&y=12&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic+introduction&tocsectionid=emerging+model+organisms&tocsectionid=product+protocol&tocsectionid=kit&tocsectionid=information+panel]==
Note: External links to CSHL press are provided but a subscription fee is required for access most CSHL protocols.
All CSHL protocol articles are Copyright 2018, 2019, 2020 or 2021 Cold Spring Harbor Laboratory Press- Request permission to re-use images/figures accordingly.

==='''''Husbandry and Obtaining Eggs and Embryos'''''===
**Raising and Maintaining ''Xenopus tropicalis'' from Tadpole to Adult. Maura Lane, Michael Slocum and Mustafa K Khokha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106369.long]
**Obtaining ''Xenopus tropicalis'' Eggs. Maura Lane, Emily K Mis and Mustafa K Khokha 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106344.long]
**Obtaining ''Xenopus tropicalis'' Embryos by Natural Mating. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106609.long]
**Obtaining ''Xenopus tropicalis'' Embryos by In Vitro Fertilization. Maura Lane and and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot106351.long]
**Obtaining ''Xenopus laevis'' Eggs. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57590]
**Obtaining ''Xenopus laevis'' Embryos. Nikko Shaidani, Sean McNamara, Marcin Wlizla, Marko Horb. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57598]
** Cryopreservation of ''Xenopus'' Sperm and In Vitro Fertilization Using Frozen Sperm Samples. Anna Nobel, Anita Abu-Daya, Matt Guille. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot107029.long]

=== '''''General Research Protocols''''' ===
**Microinjection of ''Xenopus tropicalis'' Embryos. Maura Lane , Emily K Mis and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107644.long]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Embryos. Jean-Pierre Saint-Jeannet. 2017 [http://cshprotocols.cshlp.org/content/2017/12/pdb.prot097287.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Whole-Mount In Situ Hybridization of ''Xenopus'' Oocytes. Diana Bauermeister and Tomas Pieler. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097014.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Fluorescence In Situ Hybridization of Cryosectioned ''Xenopus'' Oocytes. Christopher R. Neil and Kimberly Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.prot097030.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Whole-Mount Immunocytochemistry in ''Xenopus''. Michael W. Klymkowsky. 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.prot097295.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Microinjection of mRNAs and Oligonucleotides. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097261.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Microinjection of DNA Constructs into ''Xenopus'' Embryos for Gene Misexpression and cis-Regulatory Module Analysis. Yuuri Yasuoka and Masanori Taira. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097279.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Whole-Mount Immunofluorescence for Visualizing Endogenous Protein and Injected RNA in ''Xenopus'' Oocytes. Samantha P. Jeschonek and Kimberly L. Mowry. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097022.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Isolation of ''Xenopus'' Oocytes. Karen Newman, Tristan Aguero, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot095851.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Microinjection of ''Xenopus'' Oocytes. Tristan Aguero, Karen Newman, and Mary Lou King. 2018. [http://cshprotocols.cshlp.org/content/2018/2/pdb.prot096974.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Oocyte Host-Transfer and Maternal mRNA Depletion Experiments in ''Xenopus''. Douglas W. Houston. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot096982.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Applying Tensile and Compressive Force to ''Xenopus'' Animal Cap Tissue. Georgina K. Goddard, Nawseen Tarannum, and Sarah Woolner. 2020. [http://cshprotocols.cshlp.org/content/early/2019/12/19/pdb.prot105551.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Isolation and Demembranation of ''Xenopus'' Sperm Nuclei. James W. Hazel and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099044.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Patch-Clamp and Perfusion Techniques to Study Ion Channels Expressed in ''Xenopus'' Oocytes. Guohui Zhang and Jianmin Cui. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot099051.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Heterologous Protein Expression in the ''Xenopus'' Oocyte. Jonathan S. Marchant. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096990.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Isolation and Analysis of ''Xenopus'' Germinal Vesicles. Garry T. Morgan. 2018. [http://cshprotocols.cshlp.org/content/2018/4/pdb.prot096958.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**''Xenopus'' Tadpole Tissue Harvest. Matthew D. Patmann, Leena H. Shewade, Katelin A. Schneider, and Daniel R. Buchholz. 2017 [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot097675.full?sid=2def726a-9d33-480f-960a-2cb505467e1d].
**''In Vivo'' Transfection of Naked DNA into ''Xenopus'' Tadpole Tail Muscle. Lindsey Marshall, Fabrice Girardot, Barbara A. Demeneix, and Laurent Coen. 2017. [http://cshprotocols.cshlp.org/content/2017/11/pdb.prot099366.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Cell Proliferation Analysis during ''Xenopus'' Metamorphosis: Using 5-Ethynyl-2-Deoxyuridine (EdU) to Stain Proliferating Intestinal Cells. Morihiro Okada and Yun-Bo Shi. 2017. [http://cshprotocols.cshlp.org/content/2017/9/pdb.prot097717.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''Genome Editing Protocols''''' ===
**Generating Nonmosaic Mutants in ''Xenopus'' Using CRISPR-Cas in Oocytes''' Sang-Wook Cha. 2021 [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot106989.long]
**CRISPR-Cas9 Mutagenesis in Xenopus tropicalis for Phenotypic Analyses in the F0 Generation and Beyond.Ira Blitz and Takuya Nakayama. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=58352]
** Modeling Human Genetic Disorders with CRISPR Technologies in ''Xenopus''. helen Willsey, Matt Guille, and Robert Grainger. 2021. [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.prot106997.long]

=== ''''''Omics''''' ===
**Transcriptomics and Proteomics Methods for ''Xenopus'' Embryos and Tissues. Michael J. Gilchrist, Gert Jan C. Veenstra, and Ken W.Y. Cho. 2020. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/early/2019/11/26/pdb.top098350.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Mass Spectrometry-Based Absolute Quantification of Single ''Xenopus'' Embryo Proteomes. Rik G.H. Lindeboom, Arne H. Smits, Matteo Perino, Gert Jan C. Veenstra, and Michiel Vermeulen. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098376.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**INTACT Proteomics in ''Xenopus''. Lauren Wasson, Nirav M. Amin, and Frank L. Conlon. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098384.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
=== '''''Imaging''''' ===
**''Xenopus'' Tadpole Craniocardiac Imaging Using Optical Coherence Tomography. Engin Deniz, Emily K Mis, Maura Lane and Mustafa K Khokha. 2021. [http://cshprotocols.cshlp.org/content/early/2021/05/24/pdb.prot105676.long]
**Live Imaging of Cytoskeletal Dynamics in Embryonic ''Xenopus laevis'' Growth Cones and Neural Crest Cells. Burcu Erdogan, Elizabeth Bearce, Laura Anne Lowery. 2020. [http://cshprotocols.cshlp.org/content/2021/4/pdb.prot104463.long]
**Imaging Methods in "Xenopus" Cells, Embryos, and Tadpoles. Lance A Davidson and Laura Anne Lowery. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.top105627.long]
**Imaging Structural and Functional Dynamics in ''Xenopus'' Neurons. Hollis Cline. 2021 [http://cshprotocols.cshlp.org/content/early/2021/09/16/pdb.top106773.long]

=== '''''Genomes, Chromosomes, DNA, Chromatin and Epigenetics''''' ===
**''In Vitro'' Transcription Systems. Michael R. Green and Joseph Sambrook. [http://cshprotocols.cshlp.org/content/2020/1/pdb.top100750.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**ChIP-Sequencing in ''Xenopus'' Embryos. Saartje Hontelez, Ila van Kruijsbergen, and Gert Jan C. Veenstra. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097907.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Characterization in ''Xenopus laevis'' Cell-Free Egg Extracts and Embryos. Wei-Lin Wang, Takashi Onikubo, and David Shechter. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot099879.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Analysis of Chromatin Binding of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105577.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Analysis of Phosphorylation Status of Ectopically Expressed Proteins in Early ''Xenopus'' Embryos. Laura J.A. Hardwick and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot105569.full?sid=16f13371-6da8-40f7-8dba-5faaf784fe4d].
**Assessing Ubiquitylation of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot104513.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Generating a Three-Dimensional Genome from ''Xenopus'' with Hi-C. Ian K. Quigley and Sven Heinz. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot098343.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**An RNA-Seq Protocol for Differential Expression Analysis. Nick D.L. Owens, Elena De Domenico, and Michael J. Gilchrist. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot098368.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**DNase-seq to Study Chromatin Accessibility in Early ''Xenopus tropicalis'' Embryos. Jin Sun Cho, Ira L. Blitz, and Ken W.Y. Cho. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot098335.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Mapping Chromatin Features of ''Xenopus'' Embryos. George E. Gentsch and James C. Smith. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100263.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Reconstituting Nuclear and Chromosome Dynamics Using ''Xenopus'' Extracts. Susannah Rankin. 2019 [http://cshprotocols.cshlp.org/content/2019/3/pdb.top097105.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Extracts for Analysis of DNA Replication in a Nucleus-Free System. Justin Sparks and Johannes C. Walter. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.prot097154.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Endoplasmic Reticulum Network Formation with ''Xenopus'' Egg Extracts. Songyu Wang, Fabian B. Romano, and Tom A. Rapoport. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097204.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Chromosome Cohesion and Condensation in ''Xenopus'' Egg Extracts. Eulália M.L. da Silva and Susannah Rankin. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097121.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot104620.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Chromatin Immunoprecipitation for Chromatin Interaction Analysis Using Paired-End-Tag (ChIA-PET) Sequencing in Tadpole Tissues. 2018. Nicolas Buisine, Xiaoan Ruan, Yijun Ruan, and Laurent M. Sachs. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097725.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Endocrinology, Toxicology and Metamorphosis'''''===
**Methods for Investigating the Larval Period and Metamorphosis in ''Xenopus''. Daniel R. Buchholz and Yun-Bo Shi. [[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2018/10/pdb.top097667.full?sid=d5693f80-e850-417d-a254-c0574571010e].
**Frog Embryo Teratogenesis Assay—Xenopus (FETAX): Use in Alternative Preclinical Safety Assessment. Douglas J. Fort and Michael Mathis. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098319.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Following Endocrine-Disrupting Effects on Gene Expression in ''Xenopus laevis''. Petra Spirhanzlova, Michelle Leemans, Barbara A. Demeneix, and Jean-Baptiste Fini. 2019. Full-text link: [http://cshprotocols.cshlp.org/content/2019/7/pdb.prot098301.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Larval Thymectomy of ''Xenopus laevis''. Sara Mashoof, Breanna Breaux, and Michael F. Criscitiello. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot099192.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

=== '''''Cell-free extracts, Cell-free systems''''' ===
**The Use of Cell-Free ''Xenopus'' Extracts to Investigate Cytoplasmic Events. Romain Gibeaux and Rebecca Heald. 2019.[[''Topic Introduction'']] [http://cshprotocols.cshlp.org/content/2019/6/pdb.top097048.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Calculating the Degradation Rate of Individual Proteins Using ''Xenopus'' Extract Systems. Gary S. McDowell and Anna Philpott. 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot103481.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b].
**Special Considerations for Making Explants and Transplants with ''Xenopus tropicalis''. 2019. Marilyn Fisher and Robert M. Grainger. [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]. Supplemental Material [http://cshprotocols.cshlp.org/content/2019/6/pdb.prot097428/suppl/DC1].
**Filopodia-Like Structure Formation from ''Xenopus'' Egg Extracts. Helen M. Fox and Jennifer L. Gallop. 2019. [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot100545.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Centromere and Kinetochore Assembly in ''Xenopus laevis'' Egg Extract. Julio C. Flores Servin and Aaron F. Straight. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot102509.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Dissecting Protein Complexes in Branching Microtubule Nucleation Using Meiotic Xenopus Egg Extracts. Jae-Geun Song and Sabine Petry. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot100958.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot097113.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Analysis of Mitotic Checkpoint Function in ''Xenopus'' Egg Extracts. Yinghui Mao. 2018 [http://cshprotocols.cshlp.org/content/2018/9/pdb.prot099853.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Chemical Screening Using Cell-Free ''Xenopus'' Egg Extract. Matthew R. Broadus and Ethan Lee. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot098277.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Robustly Cycling ''Xenopus laevis'' Cell-Free Extracts in Teflon Chambers. Jeremy B. Chang and James E. Ferrell Jr. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot097212.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Microfluidic Encapsulation of Demembranated Sperm Nuclei in ''Xenopus'' Egg Extracts. John Oakey and Jesse C. Gatlin. 2018. [http://cshprotocols.cshlp.org/content/2018/8/pdb.prot102913.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Nucleus Assembly and Import in ''Xenopus laevis'' Egg Extract. Pan Chen and Daniel L. Levy. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097196.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Assembly of Spindles and Asters in ''Xenopus'' Egg Extracts. Christine M. Field and Timothy J. Mitchison. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot099796.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Preparation of Cellular Extracts from ''Xenopus'' Eggs and Embryos. Matthew C. Good and Rebecca Heald. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.prot097055.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Using the ''Xenopus'' Oocyte Toolbox. Kim L. Mowry. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/23/pdb.top095844.long]
**The Use of ''Xenopus'' for Cell Biology Applications. Anna Philpott. 2020. [http://www.xenbase.org/literature/article.do?method=display&articleId=57973]

=== '''''Immunobiology''''' ===
**Cryosectioning and Immunostaining of ''Xenopus'' Embryonic Tissues. Olga Ossipova and Sergei Y Sokol. 2021. [http://cshprotocols.cshlp.org/content/early/2021/07/08/pdb.prot107151.long]
**Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105585.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Purifying Antibodies Raised against ''Xenopus'' Peptides. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105619.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184]
**Assessing the Immune Response When Raising Antibodies for Use in ''Xenopus''. Maya Z. Piccinni and Matthew J. Guille. 2020. [http://cshprotocols.cshlp.org/content/early/2020/01/03/pdb.prot105593.full.pdf+html?sid=972ba2c9-9b73-4306-a49c-bfa681762184].
**Lymphocyte Deficiency Induced by Sublethal Irradiation in ''Xenopus''. Louise A. Rollins-Smith and Jacques Robert. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097626.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de].
**Skin Grafting in ''Xenopus laevis'': A Technique for Assessing Development and Immunological Disparity. Yumi Izutsu. 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099788.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Adoptive Transfer of Fluorescently Labeled Immune Cells in ''Xenopus''. Kun Hyoe Rhoo and Jacques Robert. [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot097592.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Assessing Antibody Responses to Pathogens or Model Antigens in ''Xenopus'' by Enzyme-Linked Immunosorbent Assay (ELISA). Francisco De Jesús Andino and Jacques Robert. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.prot099234.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''In Vivo'' Assessment of Neural Precursor Cell Cycle Kinetics in the Amphibian Retina. Morgane Locker and Muriel Perron2019. [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536.full?sid=972ba2c9-9b73-4306-a49c-bfa681762184], Supplemental Material [http://cshprotocols.cshlp.org/content/2019/8/pdb.prot105536/suppl/DC1]
**Protein Immunodepletion and Complementation in ''Xenopus laevis'' Egg Extracts. Christopher Jenness, David J. Wynne, and Hironori Funabiki. 2018. [http://cshprotocols.cshlp.org/search?hits=10&submit=yes&submit=Go&sortspec=date&tocsectionid=protocol&tocsectionid=recipe&tocsectionid=topic%20introduction&tocsectionid=emerging%20model%20organisms&tocsectionid=product%20protocol&tocsectionid=kit&tocsectionid=information%20panel&format=standard&y=12&x=18&fulltext=Xenopus&FIRSTINDEX=60]
**Elicitation of Xenopus laevis Tadpole and Adult Frog Peritoneal Leukocytes. Leon Grayfer. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097642.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**RNAi-Mediated Loss of Function of ''Xenopus'' Immune Genes by Transgenesis. Eva-Stina Edholm and Jacques Robert. 2018. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot101519.full?sid=b8877509-c956-4358-92ea-b76c615673a4]
**Flow Cytometric Analysis of ''Xenopus'' Immune Cells. Eva-Stina Edholm. [http://cshprotocols.cshlp.org/content/2018/7/pdb.prot097600.full?sid=b8877509-c956-4358-92ea-b76c615673a4]

==='''''Assessing Behaviour and Behavioural Phenotypes'''''===
**Schooling in Xenopus laevis Tadpoles as a Way to Assess Their Neural Development. Virgillio Lopez III, Arseny Khakhalin and CArlos Aizenman. 2021. [http://cshprotocols.cshlp.org/content/2021/5/pdb.prot106906]

==='''''Neurobiology, Electrophysiology and Tissue Regeneration'''''===
**Tetrode Recording in the ''Xenopus laevis'' Visual System Using Multichannel Glass Electrodes.M Hiramoto and Hollis Cline. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57786]
**Electrophysiological Approaches to Studying Normal and Abnormal Retinotectal Circuit Development in the ''Xenopus'' Tadpole. Kara Pratt. 2021 [http://www.xenbase.org/literature/article.do?method=display&articleId=57785]
**Making ''In Situ'' Whole-Cell Patch-Clamp Recordings from ''Xenopus laevis'' Tadpole Neurons. WC Li. 2021. [http://www.xenbase.org/literature/article.do?articleId=57784&method=display]
**Analysis of Visual Collision Avoidance in ''Xenopus'' Tadpoles. Arseny Khakhalin. 2020 [http://www.xenbase.org/literature/article.do?method=display&articleId=57593]
**''Ex Vivo'' Eye Tissue Culture Methods for ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101535.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e].
**Methods for Examining Lens Regeneration in ''Xenopus''. Jonathan J. Henry, Kimberly J. Perry, and Paul W. Hamilton. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot101527.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Tracing Central Nervous System Axon Regeneration in ''Xenopus''. Kurt M. Gibbs and Ben G. Szaro. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101030.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Cell Transplantation as a Method to Investigate Spinal Cord Regeneration in Regenerative and Nonregenerative ''Xenopus'' Stages. Emilio E. Méndez-Olivos and Juan Larraín. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101006.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Infrared Laser-Mediated Gene Induction at the Single-Cell Level in the Regenerating Tail of ''Xenopus laevis'' Tadpoles. Riho Hasugata, Shinichi Hayashi, Aiko Kawasumi-Kita, Joe Sakamoto, Yasuhiro Kamei, and Hitoshi Yokoyama. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot101014.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Rod-Specific Ablation Using the Nitroreductase/Metronidazole System to Investigate Regeneration in ''Xenopus''. Reyna I. Martinez-De Luna and Michael E. Zuber. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot100974.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Studies of Limb Regeneration in Larval ''Xenopus''. Anthony L. Mescher and Anton W. Neff. 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.prot100990.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864].
**Bulk Electroporation-Mediated Gene Transfer into Xenopus Tadpole Brain. Cristina Sáenz de Miera, Ethan Parr, and Robert J. Denver. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691.full?sid=d5693f80-e850-417d-a254-c0574571010e] . Supplemental Material [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097691/suppl/DC1].
**Inverse Drug Screening of Bioelectric Signaling and Neurotransmitter Roles: Illustrated Using a ''Xenopus'' Tail Regeneration Assay. Kelly G. Sullivan and Michael Levin. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot099937.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Neurophysiological and Behavioral Analysis in ''Xenopus''. Ben Szaro. 2021. (Electrophysiology protocols for studies of neural circuitry in the developing optic tectum and spinal cord, vocalizations, and locomotory behavior).
[http://www.xenbase.org/literature/article.do?articleId=57966&method=display]
**Electrophysiological Recording for Study of ''Xenopus'' Retinotectal Circuitry. Y Luo , W Shen, and Hollis Cline. 2021. [http://www.xenbase.org/literature/article.do?articleId=57968&method=display]
**Bulk Dye Loading for In Vivo Calcium Imaging of Visual Responses in Populations of ''Xenopus'' Tectal Neurons. PW Hogg and K Haas. 2021. [http://www.xenbase.org/literature/article.do?method=display&articleId=57972]
** ''Xenopus'', a Model to Study Wound Healing and Regeneration: Experimental Approaches. Paula Slater, M Palacios, Juan Larraín. 2021. [http://www.xenbase.org/literature/article.do?articleId=57974&method=display]
** ''In Vivo'' Time-Lapse Imaging and Analysis of Dendritic Structural Plasticity in ''Xenopus laevis'' Tadpoles. Hai-Yun He, Chih-Yang Lin and Hollis Cline. 2021. [doi: 10.1101/pdb.prot106781] [https://www.xenbase.org/literature/article.do?articleId=57985&method=display]

==='''''Fate mapping, Explants and Transplants'''''===
**Dissecting and Culturing Animal Cap Explants. Kevin S. Dingwell and James C. Smith. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.prot097329.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Cranial Neural Crest Explants. Hélène Cousin and Dominique Alfandari. 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.prot097394.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Einsteck Transplants. Hélène Cousin. 2019 [http://cshprotocols.cshlp.org/content/2019/2/pdb.prot097352.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Deletion and Transplantation to Test Cell Fate Commitment in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097311.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Cleavage Blastomere Explant Culture in ''Xenopus''. Sally A. Moody. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.prot097303.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Lineage Tracing and Fate Mapping in ''Xenopus'' Embryos. Sally A. Moody. 2018. [http://cshprotocols.cshlp.org/content/2018/12/pdb.prot097253.full?sid=2fc9436b-3641-44d3-b3c6-c967a7433e1a]
**Collagen-Embedded Tumor Transplantations in ''Xenopus laevis'' Tadpoles. Maureen Banach and Jacques Robert. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097584.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]
**Organ Culture of the ''Xenopus'' Tadpole Intestine. Atsuko Ishizuya-Oka. 2017 [http://cshprotocols.cshlp.org/content/2017/10/pdb.prot097683.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

===CSHL Recipes===
**Embryo Lysis Buffer (''Xenopus''). (Recipe 1) CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/7/pdb.rec106542.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**''Xenopus'' Embryo Lysis Buffer. (Recipe 2). CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec104984.full?sid=ee051c86-4c27-43bb-b30d-6ab36902aaf0]
**Lysis Buffer for ''Xenopus'' (recipe3) CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105775.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**DNA Isolation Buffer. CSHLP. 2019 [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106443.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Lysis Buffer for Xenopus Hi-C. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec106435.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**RIPA Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/6/pdb.rec105932.full?sid=67e6a6db-ab83-4e4e-9b7e-ec7d5fb9974b]
**Amphibian Serum-Free (ASF) Medium Supplemented with Fetal Bovine Serum (FBS). CSHL 2019. [http://cshprotocols.cshlp.org/content/2019/5/pdb.rec105387.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**''Xenopus'' Eye Culture Medium. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/4/pdb.rec105072.full?sid=656fdacc-f612-4cf9-8a47-fb6ae54ec864]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (1×). CSHLP. 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103861.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Marc's Modified Ringer's (MMR) for ''Xenopus'' (20×). CSHLP. 2019. [http://cshprotocols.cshlp.org/content/2019/3/pdb.rec104406.full?sid=421e6ded-097e-4c29-9bf0-9c4dfe75918e]
**Injection Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105957.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**TE Buffer for ''Xenopus''. CSHLP 2019. [http://cshprotocols.cshlp.org/content/2019/1/pdb.rec105973.full?sid=8e4aa418-f7f4-4ebb-bf83-c6a0f37997de]
**Proteinase K Buffer for ''Xenopus'' Oocytes. CSHLP 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103374.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**PBT/PBT-Plus for ''Xenopus'' Oocytes. CSHL. 2018. [http://cshprotocols.cshlp.org/content/2018/10/pdb.rec103366.full?sid=d5693f80-e850-417d-a254-c0574571010e]
**Energy Mix for ''Xenopus'' Egg Extracts. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/6/pdb.rec103606.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**''Xenopus'' Oocyte Culture Medium (XOCM).CSHL 2018.[http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103382.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**PBT for ''Xenopus'' Oocyte FISH.CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/5/pdb.rec103630.full?sid=b0492802-2591-4c11-9ec5-fbc953f4c8d3]
**Blocking Solution for ''Xenopus'' Oocytes. CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/3/pdb.rec103945.full?sid=c828398a-2644-45a4-84d8-c438d0645c1c]
**Aldehyde Fixative (MEMFA). CSHL 2018. [http://cshprotocols.cshlp.org/content/2018/1/pdb.rec102731.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Staining Buffer for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102798.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Blocking Solution for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102772.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Embryonic ''Xenopus'' Culture Media (CM). CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102699.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]
**Hybridization Buffer (HB) for ''Xenopus'' Embryos. CSHL 2017. [http://cshprotocols.cshlp.org/content/2017/12/pdb.rec102780.full?sid=2def726a-9d33-480f-960a-2cb505467e1d]

='''Cold Spring Harbor ''Xenopus'' Protocols''' 2007. Edited by Hazel Sive=
**Housing and Feeding of Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.top8.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Inducing Ovulation in Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4734.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis In Vitro Fertilization and Natural Mating Methods - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4737.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Egg Collection and In Vitro Fertilization of the Western Clawed Frog Xenopus tropicalis - Showell & Conlon [http://cshprotocols.cshlp.org/content/2009/9/pdb.prot5293.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5534.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolating Xenopus laevis Testes - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4735.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Dejellying Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4731.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Removing the Vitelline Membrane from Xenopus laevis Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2007/5/pdb.prot4732.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.ip81.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Defolliculation of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5535.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5536.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Animal Cap Isolation from Xenopus laevis - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4744.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Xenopus laevis Keller Explants - Sive et al. [http://cshprotocols.cshlp.org/content/2007/6/pdb.prot4749.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Microinjection of RNA and Preparation of Secreted Proteins from Xenopus Oocytes - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5538.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Calibration of the Injection Volume for Microinjection of Xenopus Oocytes and Embryos - Sive et al. [http://cshprotocols.cshlp.org/content/2010/12/pdb.prot5537.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Isolation of DNA from Red Blood Cells in Xenopus - Sive et al. [http://cshprotocols.cshlp.org/content/2012/1/pdb.prot067462.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Investigating Morphogenesis in Xenopus Embryos: Imaging Strategies, Processing, and Analysis - Kim & Davidson [http://cshprotocols.cshlp.org/content/2013/4/pdb.top073890.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Low-Magnification Live Imaging of Xenopus Embryos for Cell and Developmental Biology - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5425.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**High-Magnification In Vivo Imaging of Xenopus Embryos for Cell and Developmental Biology - Keiserman et al. [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5427.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Preparation of Fixed Xenopus Embryos for Confocal Imaging - Wallingford [http://cshprotocols.cshlp.org/content/2010/5/pdb.prot5426.abstract?sid=3a8d778b-0e2c-4925-bb88-c7ade32e7bff]
**Whole-Mount Fluorescence Immunocytochemistry on Xenopus Embryos - Lee et al. [http://cshprotocols.cshlp.org/content/2008/2/pdb.prot4957.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Generation of Transgenic Xenopus laevis - Kroll & Amaya - [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4838.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4839.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae] [http://cshprotocols.cshlp.org/content/2007/9/pdb.prot4840.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**In Vivo Time-Lapse Imaging of Neuronal Development in Xenopus - Ruthazer et al. [http://cshprotocols.cshlp.org/content/2013/9/pdb.top077156.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**Photoconversion for Tracking the Dynamics of Cell Movement in Xenopus laevis Embryos - Chernet et al. [http://cshprotocols.cshlp.org/content/2012/6/pdb.prot068502.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Single-Cell Electroporation in Xenopus - Liu & Haas [http://cshprotocols.cshlp.org/content/2011/9/pdb.top065607.abstract?sid=009b88bf-7bfb-4279-9528-70643a25bbae]
**Imaging Axon Pathfinding in Xenopus In Vivo - Leung & Holt [http://cshprotocols.cshlp.org/content/2012/9/pdb.prot070003.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]
**A Versatile Protocol for mRNA Electroporation of Xenopus laevis Embryos - Chernet & Levin [http://cshprotocols.cshlp.org/content/2012/4/pdb.prot067694.abstract?sid=47d75b27-9727-4811-8a78-0330a022b90f]

== '''''General Research Protocols''''' ==

=== '''''Animal Husbandry''''' ===
*obtain frogs and frog housing equipment [http://www.xenbase.org/other/obtain.do]
*Xenopus Express links [http://www.xenopus.com/links.htm] - Xenopus Express husbandry [http://www.xenopus.com/husbandry.htm]
*[[Xenopus tropicalis and Xenopus laevis environmental parameter standard operating procedure (Kroll lab)]]

=== '''''[[Lab Solutions and Reagents]]''''' (click each to view expanded content) ===
*[[culture media]]
*[[immunohistochemistry]]
*[[in situ hybridization]]
*[[fixatives]]
*[[DNA/RNA preparation]]
*[[embryo manipulation/dissection]]
*[[microinjection]]
*[[general buffers and salt solutions]]

=== '''''Generating Embryos''''' ===
*[[inducing egg laying via hCG injection (Vize lab)]]
*[[anesthesia, in vitro fertilization, and natural mating of Xenopus tropicalis (Conlon lab)]]
*[[benzocaine stock, 100x (Khokha lab)]]
*[[in vitro fertilization of Xenopus laevis (Conlon lab)]]
*[[high-salt solution for egg laying (Zorn lab/Ron Laskey)]]
*[[dejellying embryos (Sive et al. 2000)]]
*[[dejellying embryos (Zorn lab)]]

=== '''''Transgenesis''''' ===
*[[transgenesis in ''Xenopus laevis'' - adapted from Amaya et al 2001 (Conlon lab)]]
*[[tadpole tail sampling for genomic DNA (Conlon lab)]]
*''Production of transgenic ''Xenopus laevis'' by restriction enzyme mediated integration and nuclear transplantation.'' Amaya E, Kroll K. J Vis Exp. 2010 Aug 21;(42). [http://www.jove.com/video/2010/production-of-transgenic-xenopus-laevis-by-restriction-enzyme-mediated-integration-and-nuclear-transplantation]
*''A method for generating transgenic frog embryos.'' Ishibashi S, Kroll KL, Amaya E. Methods Mol Biol. 2008;461:447-66. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*''A method for generating transgenic frog embryos.'' Amaya E, Kroll KL. Methods Mol Biol. 1999;97:393-414. [http://www.springerlink.com/content/vn5v1470g87620t1/#section=96225&page=1]
*Optimization Strategies for the CRISPR–Cas9 Genome-Editing System. Vejnar et al 2016. [http://cshprotocols.cshlp.org/content/2016/10/pdb.top090894.full?sid=05542338-2fde-46e3-a781-f1e82664d1de]

=== '''''in situ Hybridization''''' ===
*[[in situ hybridization, brief version (Harland lab)]]
*[[whole-mount in situ hybridization (Conlon lab)]]
**[[in situ checklist (Conlon lab)]]
*[[whole-mount in situ hybridization - LNA probes (Wheeler lab)]]
*fluorescent in situs and FCIS (Vize lab)
**[[Wholemount embryo FISH / Double FISH]]
**[[Flourescin Tyramide Synthesis]]
**[[Cy3 Tyramide Synthesis]]
**[[FCIS]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''Immunohistochemistry''''' ===
*[[wholemount antibody staining (CSH Protocols) (Wallingford lab)]]
*[[wholemount antibody staining - alkaline phosphatase detection (Conlon lab)]]
*[[wholemount antibody staining - adapted from Dan Weeks' protocol (Conlon lab)]]
*[[immunostaining sectioned embryos (Conlon lab)]]
*[[hydrochloric acid antigen retrieval (Zorn lab)]]
*[[RNA Whole-Mount In situ Hybridisation Proximity Ligation Assay (rISH-PLA) (Myers and Scarlett labs)]]

=== '''''ChIP protocols''''' ===
*'''Chromatin immunoprecipitation analysis of Xenopus embryos.''', Methods Mol Biol. 2012;917:279-92. [http://www.xenbase.org/literature/article.do?method=display&articleId=45851] [http://www.ncbi.nlm.nih.gov/pubmed/22956095]
**Akkers RC, Jacobi UG, Veenstra GJ.
*'''Chromatin immunoprecipitation in early Xenopus laevis embryos.''', Dev Dyn. 2009 Jun;238(6):1422-32. [http://www.xenbase.org/literature/article.do?method=display&articleId=39423] [http://www.ncbi.nlm.nih.gov/pubmed/19334278]
**Blythe SA, Reid CD, Kessler DS, Klein PS.

=== '''''Histology''''' ===
*[[cryosectioning ''Xenopus'' embryos (Conlon lab)]]

=== '''''Embryo Staining Protocols (non in situ)''''' ===
*[[benzidine-peroxidase staining for blood (Conlon lab)]]
*[[benzidine-peroxidase staining for blood (Thomsen lab)]]
*[[apoptosis via TUNEL (Veenstra lab)]]
*[[TUNEL staining of whole Xenopus embryos - Harland protocol (Conlon lab)]]

=== '''''Immuno and Protein Protocols''''' ===
*[[immunoprecipitation (Stukenberg lab)]]
*[[immunofluorescence with biotinylated antibodies (Stukenberg lab)]]
*Purifying Polyclonal Antibodies using Affinity Columns/Chromatography
*[[Making an Affinity Column]]
*[[Running an Affinity Column]]
*[[whole embryo protein extraction with freon (Conlon lab)]]
*[[SDS-PAGE gels (Conlon lab)]]
*[[western blot protocol (Conlon lab)]]
*[[silver staining protein gels (Stukenberg lab)]]

=== '''''Nucleic Acid Protocols''''' ===
*RNA Isolation
**[[Preparation of RNA Using Proteinase K/LiCl (Sive et al. 2000)]]
**[[Preparation of RNA (In Vitro Transcription) (Sive et al. 2000)]]
*DNA Isolation
**[[Extraction of DNA from Single Embryos (Sive et al. 2000)]]
**[[Isolation of DNA from Red Blood Cells (Sive et al. 2000)]]
*RNaseH-mediated RNA depletion
**[[Optimized design of antisense oligomers for targeted rRNA depletion (Phelps et al 2020))]] [[https://doi.org/10.1093/nar/gkaa1072]]

=== '''''[[Oocyte Transfer Technique (Heasman/Wylie labs)]]''''' ===
*[[Part 1: Choosing Oligodeoxyribonucleotides (ODNs)]]
*[[Part 2: ODN Modification]]
*[[Part 3: Host Transfer Technique]]
*[[Part 4: Fertilization and Development]]

=== '''''Xenopus Oocyte and Egg Extracts''''' ===
*[[crude interphase egg extract (Shechter lab)]]
*[[isolation of chromatin from egg extract and histone recovery (Shechter lab)]]
*[[preparation of cycling egg extract (Shechter lab)]]
*[[cycling extracts, mike's protocol (Stukenberg lab)]]
*[[cycling extracts, sara's protocol (Stukenberg lab)]]
*[[CSF extract, mike's protocol (Stukenberg lab)]]
*[[CSF extract, sara's protocol (Stukenberg lab)]]
*[[assaying H1 kinase in extracts (Stukenberg lab)]]
*[[frozen egg extracts that retain spindle assembly activity (Takagi and Shimamoto, 2017)]]

=== '''''Xenopus Tissue Culture''''' ===
*[[tissue culture of ''Xenopus'' cell lines S3, XTC (Stukenberg lab)]]
*[[isolation of mitotic chromosomes from XTC cells (Stukenberg lab)]]
*[[in-vitro kinetochore-microtubule binding assays (Stukenberg lab)]]

XB-FEAT-5846943

2025-05-10T10:51:02Z

Christina: /* gene expression */

=''ptk7''=
This is the community wiki page for the gene ''ptk7'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=notes on protein function=
ptk7 is a regulator of planar cell polarity.

at the cell membrane, ptk7 recruits dishevelled.

ptk7 effect and is required for cells ability to display contact inhibition

within migratory neural crest cells, the ptk7 protein is locaized at the cell membrane where cells contact each other

ptk7 interacts with canonical but non non-canonical Wnt ligands, which leaads to a cell membrane locaization of ptk7 ( in breast cancer cells lines, and wnt5a) (see Berger et al JCS 2017.)

text extracted from ''The Rho GEF Trio functions in contact inhibition of locomotion of neural crest cells by interacting with Ptk7'' by Katharina Till and Annette Borchers. Development (2025) 152 (9): dev204446.
https://doi.org/10.1242/dev.204446

" Ptk7, originally identified as colon carcinoma kinase 4 (CCK4) (Mossie et al., 1995), is a member of the receptor tyrosine kinase family with extracellular immunoglobulin-like domains and an evolutionary conserved inactive tyrosine kinase domain (Miller and Steele, 2000; Sheetz et al., 2020). In vertebrates, Ptk7 plays a role in the regulation of PCP (Andreeva et al., 2014; Hayes et al., 2013; Lee et al., 2012; Lu et al., 2004; Paudyal et al., 2010; Williams et al., 2014; Xu et al., 2016; Yen et al., 2009) and functions as a Wnt co-receptor (Bin-Nun et al., 2014; Martinez et al., 2015; Peradziryi et al., 2011; Podleschny et al., 2015). Like Trio, Ptk7 is required for NC migration and cartilage formation (Shnitsar and Borchers, 2008). Recently, we have shown that Ptk7 is dynamically localized at NC cell-cell contact zones, where it plays a role in CIL [ contact inhibition of locomotion ](Grund et al., 2021). "

=summary from NCBI for human PTK7=
This gene encodes a member of the receptor protein tyrosine kinase family of proteins that transduce extracellular signals across the cell membrane. The encoded protein lacks detectable catalytic tyrosine kinase activity, is involved in the Wnt signaling pathway and plays a role in multiple cellular processes including polarity and adhesion. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jul 2012]

=gene expression notes=

''ptk7'' is expressed in neural crest cells and is involved in /required for neural crest cell migration. (Podleschny et al PLOS one 2015)

XB-FEAT-5846943

2025-05-10T10:50:25Z

Christina: /* notes on protein function */

=''ptk7''=
This is the community wiki page for the gene ''ptk7'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=notes on protein function=
ptk7 is a regulator of planar cell polarity.

at the cell membrane, ptk7 recruits dishevelled.

ptk7 effect and is required for cells ability to display contact inhibition

within migratory neural crest cells, the ptk7 protein is locaized at the cell membrane where cells contact each other

ptk7 interacts with canonical but non non-canonical Wnt ligands, which leaads to a cell membrane locaization of ptk7 ( in breast cancer cells lines, and wnt5a) (see Berger et al JCS 2017.)

text extracted from ''The Rho GEF Trio functions in contact inhibition of locomotion of neural crest cells by interacting with Ptk7'' by Katharina Till and Annette Borchers. Development (2025) 152 (9): dev204446.
https://doi.org/10.1242/dev.204446

" Ptk7, originally identified as colon carcinoma kinase 4 (CCK4) (Mossie et al., 1995), is a member of the receptor tyrosine kinase family with extracellular immunoglobulin-like domains and an evolutionary conserved inactive tyrosine kinase domain (Miller and Steele, 2000; Sheetz et al., 2020). In vertebrates, Ptk7 plays a role in the regulation of PCP (Andreeva et al., 2014; Hayes et al., 2013; Lee et al., 2012; Lu et al., 2004; Paudyal et al., 2010; Williams et al., 2014; Xu et al., 2016; Yen et al., 2009) and functions as a Wnt co-receptor (Bin-Nun et al., 2014; Martinez et al., 2015; Peradziryi et al., 2011; Podleschny et al., 2015). Like Trio, Ptk7 is required for NC migration and cartilage formation (Shnitsar and Borchers, 2008). Recently, we have shown that Ptk7 is dynamically localized at NC cell-cell contact zones, where it plays a role in CIL [ contact inhibition of locomotion ](Grund et al., 2021). "

=summary from NCBI for human PTK7=
This gene encodes a member of the receptor protein tyrosine kinase family of proteins that transduce extracellular signals across the cell membrane. The encoded protein lacks detectable catalytic tyrosine kinase activity, is involved in the Wnt signaling pathway and plays a role in multiple cellular processes including polarity and adhesion. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jul 2012]

=gene expression=

ptk7 is expressed in neural crest cells and is involved in /required for neural crest cell migration. (Podleschny et al PLOS one 2015)

XB-FEAT-5810263

2025-05-10T09:52:13Z

Christina: /* nomenclature changes */

=''tpx2''=
This is the community wiki page for the gene ''tpx2'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=summary from NCBI for Human gene TPX2=
Enables importin-alpha family protein binding activity; molecular adaptor activity; and protein kinase binding activity. Involved in activation of protein kinase activity; microtubule cytoskeleton organization; and negative regulation of microtubule depolymerization. Located in intercellular bridge; nucleoplasm; and spindle. Is active in spindle. [provided by Alliance of Genome Resources, May 2025]

= nomenclature changes=

At some point in past (i.e., prior to 12/01/2018) gene name changed for ''tpx2'' from ''Xklp2, Xenopus kinesin-like protein 2'' to 'TPX2, microtubule nucleation factor '

The gene symbol changed from ''Xklp2'' to ''tpx2''

Note that species' names (''Xenopus, Drosophila'' etc) have been removed from nearly all human gene names during period 2010-2020, following HGNC nomenclature guidelines.

XB-FEAT-5810263

2025-05-10T09:49:14Z

Christina: /* summary from NCBI for Human gene TPX2 */

=''tpx2''=
This is the community wiki page for the gene ''tpx2'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=summary from NCBI for Human gene TPX2=
Enables importin-alpha family protein binding activity; molecular adaptor activity; and protein kinase binding activity. Involved in activation of protein kinase activity; microtubule cytoskeleton organization; and negative regulation of microtubule depolymerization. Located in intercellular bridge; nucleoplasm; and spindle. Is active in spindle. [provided by Alliance of Genome Resources, May 2025]

= nomenclature changes=

undated

At some point in past, ( prior to 12/01/2018) name changed for tpx2 from 'Xenopus kinesin-like protein 2' to 'TPX2, microtubule nucleation factor '

The gene symbol stayed the same.

Note that species names (Xenopus, Drosophila etc) have been removed from nearly all gene names during period 2010-2020.

XB-FEAT-5810263

2025-05-10T09:48:55Z

Christina: /* tpx2 */

=''tpx2''=
This is the community wiki page for the gene ''tpx2'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=summary from NCBI for Human gene TPX2=

= nomenclature changes=

undated

At some point in past, ( prior to 12/01/2018) name changed for tpx2 from 'Xenopus kinesin-like protein 2' to 'TPX2, microtubule nucleation factor '

The gene symbol stayed the same.

Note that species names (Xenopus, Drosophila etc) have been removed from nearly all gene names during period 2010-2020.

XB-FEAT-923466

2025-03-07T19:59:21Z

Christina: /* spaca5 */

=''spaca5l.2''=
This is the community wiki page for the gene ''spaca51.2'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=nomenclature changes=
08MARCH2025

Synteny doesn't support this gene to be the orthology of human SPACA5- that honor is given to the chr8 'Xtr.spaca5' genes, thus this gene has been renamed ''spaca5l.2''

XB-FEAT-22063310

2025-03-07T19:56:38Z

Christina: /* protein used in DIOPT analysis */

=nomenclature changes=
26April2023

''Xenopus'' gene name changed from XB22063310 [provisional] Xenopus laevis cell surface glycoprotein 1-like, to ''spaca5, sperm acrosome associated 5''

08MARCH20205

''Xenopus'' gene symbol changed from ''spaca5'' to ''spaca5.2''. Synteny support the other ''spaca5'' gene on chr 8 as the true ortholog of the human SPACA5 gene.

=orthology=
26April2023

DIOPT/EggNog analysis of the ''Xenopus'' protein for this gene confirms it as a member of the SPACA5 homology group, and the gene name was updated as indicated.

Note that the NCBI/UniProt name for protein needs reassessing ( not dentin sialophosphoprotein-like)

=protein used in DIOPT analysis=
dentin sialophosphoprotein-like [Xenopus tropicalis]

NCBI Reference Sequence: XP_031746799.1

>XP_031746799.1 dentin sialophosphoprotein-like [Xenopus tropicalis]
MKLILGLLVLFPWTLRAQDNQMVTSNDSDITTGVNSEQQTDASNSTSDQGSYNNTYNTLTTGSDSYTTET
AAADAPTDSSDPLPTNSSSYNTDGNMLENKDALLVTSVNNNVLESTVMSSSPTSTDSGTYSTAESTVYSL
SKSEGDSASEDQSNENSNSMESEQGDTSCAVYEILREAGMVGYRGLSAADWICVLKMTNLFHPSEKNAVR
CRNLKSHKAKYSCECFGDNVHKYIQCQMKTMRDPTDLWNQFCNGKDLSQYTRACESQLPQEPRKY

this makes no sense to me - CJZ

XB-FEAT-22063310

2025-03-07T19:55:03Z

Christina: /* nomenclature changes */

XB-FEAT-29092562

2025-03-07T19:50:29Z

Christina: /* spaca5 */

=''spaca5''=
This is the community wiki page for the gene ''spaca5'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=nomenclature updates=
06MARCH2025

There are 4 genes annotated as 'spaca5' or 'spaca5l' in the v10 Xenopus genome assemblies. Synteny supports this X. tropicalis gene, on Chr8, GENEID as the true ortholog of the human SPACA5 gene. The names of the spaca5 genes on chr10/9_10L will be changed to 'spaca5-like' genes 1 and 2.

''Xenopus'' gene name has been changed from ''sperm acrosome associated 5 like'' to ''sperm acrosome associated 5'', aka ''sperm acrosome associated 5 gene 1''.

XB-FEAT-29092562

2025-03-07T19:48:59Z

Christina: /* nomenclature updates */

=''spaca5''=

=nomenclature updates=
06MARCH2025

There are 4 genes annotated as 'spaca5' or 'spaca5l' in the v10 Xenopus genome assemblies. Synteny supports this X. tropicalis gene, on Chr8, GENEID as the true ortholog of the human SPACA5 gene. The names of the spaca5 genes on chr10/9_10L will be changed to 'spaca5-like' genes 1 and 2.

''Xenopus'' gene name has been changed from ''sperm acrosome associated 5 like'' to ''sperm acrosome associated 5'', aka ''sperm acrosome associated 5 gene 1''.

XB-FEAT-29092562

2025-03-07T19:48:50Z

Christina: Created page with "=''spaca5''= =nomenclature updates= 06MARCH2025 There are 4 genes annotated as 'spaca5' or 'spaca5l' in the v10 Xenopus genome assemblies. Synteny supports this X. tropicalis gene, on Chr8, GENEID as the true ortholog of the human SPACA5 gene. The names of the spaca5 genes on chr10/9_10L will be changed to 'spaca5-like' genes 1 and 2. ''Xenopus'' gene name has been changed from ''sperm acrosome associated 5 like'' to ''sperm acrosome associated 5'', aka ''sperm acros..."

=''spaca5''=

=nomenclature updates=
06MARCH2025
There are 4 genes annotated as 'spaca5' or 'spaca5l' in the v10 Xenopus genome assemblies. Synteny supports this X. tropicalis gene, on Chr8, GENEID as the true ortholog of the human SPACA5 gene. The names of the spaca5 genes on chr10/9_10L will be changed to 'spaca5-like' genes 1 and 2.

''Xenopus'' gene name has been changed from ''sperm acrosome associated 5 like'' to ''sperm acrosome associated 5'', aka ''sperm acrosome associated 5 gene 1''.

XB-FEAT-1004922

2025-03-07T18:43:44Z

Christina: /* nsdhl */

=''nsdhl''=
This is the community wiki page for the gene ''nsdhl'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.
=nomenclature updates=
07MARCH2025

Human name has changed for Entrez Gene: 50814. From NAD(P) dependent steroid dehydrogenase-like to NAD(P) dependent 3-beta-hydroxysteroid dehydrogenase NSDHL

XB-FEAT-479236

2025-01-11T12:04:28Z

Christina: /* whr1 */

=''whr1''=
This is the community wiki page for the gene ''whr1'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

-nomenclature changes-
Human symbol has changed for genepage ID: 479236 From stk19 to WHR1

Human symbol has changed for Entrez Gene: 8859. From STK19 to WHR1

Human symbol has changed for Entrez Gene: 8859 from STK19 serine/threonine kinase 19 to WHR1 winged helix repair factor 1

''Xenopus'' changed accordingly.

=NCBI summary for human WHR1=
This gene encodes a serine/threonine kinase which localizes predominantly to the nucleus. Its specific function is unknown; it is possible that phosphorylation of this protein is involved in transcriptional regulation. This gene localizes to the major histocompatibility complex (MHC) class III region on chromosome 6 and expresses two transcript variants. [provided by RefSeq, Jul 2008]

XB-FEAT-479236

2025-01-11T12:03:37Z

Christina: /* stk19 */

XB-FEAT-6077432

2024-09-17T20:16:10Z

Christina: /* nomenclature changes */

=''harbi1''=
This is the community wiki page for the gene ''harbi1'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=nomenclature changes=
28/08/2024

Human name has changed for Entrez Gene: 283254. From harbinger transposase derived 1 like to harbinger transposase derived 1

Human symbol has changed for Entrez Gene: 283254. From harbinger transposase derived 1 to HARBI1 I

(it seems like the NCBI had a batch of human genes that mistakenly had full names added in their gene page symbol field, and they have release a batch of fixes)

XB-FEAT-22068419

2024-09-17T20:08:40Z

Christina: /* nomenclature updates */

= ''fam169b'' =
This is the Xenbase community wiki page for ''fam169b'' genes. Feel free to add any information here that is not represented elsewhere on Xenbase.

=nomenclature updates=
23Sept2022

Human symbol has changed for genepage ID: 22068419 From fam169b to FAM169BP ( p suffix indicating a pseudogene)

''Xenopus'' gene is unchanged, as it has status of protein coding gene.

This will persist in the monthly gene report, but just ignore it.

16SEPt2024

Human symbol has changed for genepage ID: 22068419 From fam169b to FAM169BP

Human symbol has changed for Entrez Gene: 283777. From protein FAM169B to FAM169BP

Human name has changed for Entrez Gene: 283777. From family with sequence similarity 169 member B, pseudogene to protein FAM169B. (q: so it's NOT a psuedogene afterall ?)

XB-FEAT-22068419

2024-09-17T20:07:21Z

Christina: /* nomenclature updates */

XB-FEAT-6467195

2024-09-17T19:40:32Z

Christina: /* nomenclature changes */

=''adgrf2''=
This is the community wiki page for the gene ''adgrf2'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
3/9/2015
Human symbol has changed for genepage ID: 6467195 From gpr111 to ADGRF2

Human symbol has changed for Entrez Gene: 222611. From GPR111 to ADGRF2

Human name has changed for Entrez Gene: 222611. From G protein-coupled receptor 111 to adhesion G protein-coupled receptor F2

16SEPT2024

Human symbol has changed for Entrez Gene: 222611. From adhesion G protein-coupled receptor F2, pseudogene to ADGRF2P

Human name has changed for Entrez Gene: 222611. From adhesion G protein-coupled receptor F2 to adhesion G protein-coupled receptor F2, pseudogene

note that the ''Xenopus'' gene is a protein coding gene, not a psuedogene, so the name/symbol does not have the p suffix.

XB-FEAT-6467195

2024-09-17T19:38:43Z

Christina: /* adgrf2 */

XB-FEAT-6467195

2024-09-17T19:38:35Z

Christina: /* nomenclature changes */

=adgrf2=
This is the community wiki page for the gene ''adgrf2'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
3/9/2015
Human symbol has changed for genepage ID: 6467195 From gpr111 to ADGRF2

Human symbol has changed for Entrez Gene: 222611. From GPR111 to ADGRF2

Human name has changed for Entrez Gene: 222611. From G protein-coupled receptor 111 to adhesion G protein-coupled receptor F2

16SEPT2024

Human symbol has changed for Entrez Gene: 222611. From adhesion G protein-coupled receptor F2, pseudogene to ADGRF2P

Human name has changed for Entrez Gene: 222611. From adhesion G protein-coupled receptor F2 to adhesion G protein-coupled receptor F2, pseudogene

XB-FEAT-5797227

2024-09-17T19:35:43Z

Christina: /* c2orf73 */

=''cimip6''=
This is the community wiki page for the gene ''c2orf73'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=nomenclature changes=
16SEPT2024

Human symbol has changed for genepage ID: 5797227 From c5h2orf73 to CIMIP6

Human symbol has changed for Entrez Gene: 129852. From ciliary microtubule inner protein 6 to CIMIP6

Human name has changed for Entrez Gene: 129852. From chromosome 2 open reading frame 73 to ciliary microtubule inner protein 6

''Xenopus'' gene name changed from ''chromosome 5 C2orf73 homolog'' to '' ciliary microtubule inner protein 6''

XB-FEAT-6047569

2024-09-17T19:31:32Z

Christina: /* nomenclature changes */

= ''myorg'' =
This is the community wiki page for the gene ''myorg'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
07/31/2017

Human symbol has changed for genepage ID: 6047569 From kiaa1161 to myorg

Human symbol has changed for Entrez Gene: 57462. From KIAA1161 to MYORG

Human name has changed for Entrez Gene: 57462. From KIAA1161 to myogenesis regulating glycosidase (putative)

Synonyms added to record: net37; kiaa1161

09/16/2024

Human symbol has changed for Entrez Gene: 57462. From myogenesis regulating glycosidase to MYORG

Human name has changed for Entrez Gene: 57462. From myogenesis regulating glycosidase (putative) to myogenesis regulating glycosidase

''Xenopus'' gene name changed from ''myogenesis regulating glycosidase (putative) '' to '' myogenesis regulating glycosidase''

XB-FEAT-6047569

2024-09-17T19:30:54Z

Christina: /* myorg */

XB-FEAT-6047569

2024-09-17T19:30:21Z

Christina: /* nomenclature changes */

= myorg =
This is the community wiki page for the gene ''myorg'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
07/31/2017

Human symbol has changed for genepage ID: 6047569 From kiaa1161 to myorg

Human symbol has changed for Entrez Gene: 57462. From KIAA1161 to MYORG

Human name has changed for Entrez Gene: 57462. From KIAA1161 to myogenesis regulating glycosidase (putative)

Synonyms added to record: net37; kiaa1161

09/16/2024

Human symbol has changed for Entrez Gene: 57462. From myogenesis regulating glycosidase to MYORG

Human name has changed for Entrez Gene: 57462. From myogenesis regulating glycosidase (putative) to myogenesis regulating glycosidase

''Xenopus'' gene name changed from to myogenesis regulating glycosidase

XB-FEAT-6033421

2024-09-17T19:28:29Z

Christina: /* aloxe3 */

=''aloxe3''=
This is the community wiki page for the gene ''aloxe3'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
16SEPT2024

Human symbol has changed for Entrez Gene: 59344. From arachidonate epidermal lipoxygenase 3 to ALOXE3

Human name has changed for Entrez Gene: 59344. From arachidonate lipoxygenase 3 to arachidonate epidermal lipoxygenase 3

''Xenopus'' gene name changed from ''arachidonate lipoxygenase 3 '' to '' arachidonate epidermal lipoxygenase 3''

XB-FEAT-5887993

2024-09-17T19:26:50Z

Christina: /* nomenlcature changes */

=''cimip5''=
This is the community wiki page for the gene ''c2orf50'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
16SEPT2024

Human symbol has changed for genepage ID: 5887993 From c5h2orf50 to CIMIP5

Human symbol has changed for Entrez Gene: 130813. From ciliary microtubule inner protein 5 to CIMIP5

Human name has changed for Entrez Gene: 130813. From chromosome 2 open reading frame 50 to ciliary microtubule inner protein 5

''Xenopus'' gene symbol changed from ''c5h2orf50'' to ''cimip5''

''Xenopus'' gene name changed from ''chromosome 5 C2orf50 homolog'' to ''ciliary microtubule inner protein 5''

XB-FEAT-5887993

2024-09-17T19:26:33Z

Christina: /* nomenlcature changes */

=''cimip5''=
This is the community wiki page for the gene ''c2orf50'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenlcature changes=
16SEPT2024

Human symbol has changed for genepage ID: 5887993 From c5h2orf50 to CIMIP5

Human symbol has changed for Entrez Gene: 130813. From ciliary microtubule inner protein 5 to CIMIP5

Human name has changed for Entrez Gene: 130813. From chromosome 2 open reading frame 50 to ciliary microtubule inner protein 5

''Xenopus'' gene symbol changed from ''c5h2orf50'' to ''cimip5''

''Xenopus'' gene name changed from ''chromosome 5 C2orf50 homolog'' to ''ciliary microtubule inner protein 5''

XB-FEAT-5887993

2024-09-17T19:26:18Z

Christina: /* c2orf50 */

=''cimip5''=
This is the community wiki page for the gene ''c2orf50'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenlcature changes=
16SEPT2024
\
Human symbol has changed for genepage ID: 5887993 From c5h2orf50 to CIMIP5

Human symbol has changed for Entrez Gene: 130813. From ciliary microtubule inner protein 5 to CIMIP5

Human name has changed for Entrez Gene: 130813. From chromosome 2 open reading frame 50 to ciliary microtubule inner protein 5

''Xenopus'' gene symbol changed from ''c5h2orf50'' to ''cimip5''

''Xenopus'' gene name changed from ''chromosome 5 C2orf50 homolog'' to ''ciliary microtubule inner protein 5''

XB-FEAT-5887993

2024-09-17T19:25:38Z

Christina: /* nomenlcature changes */

=c2orf50=
This is the community wiki page for the gene ''c2orf50'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenlcature changes=
16SEPT2024
\
Human symbol has changed for genepage ID: 5887993 From c5h2orf50 to CIMIP5

Human symbol has changed for Entrez Gene: 130813. From ciliary microtubule inner protein 5 to CIMIP5

Human name has changed for Entrez Gene: 130813. From chromosome 2 open reading frame 50 to ciliary microtubule inner protein 5

''Xenopus'' gene symbol changed from ''c5h2orf50'' to ''cimip5''

''Xenopus'' gene name changed from ''chromosome 5 C2orf50 homolog'' to ''ciliary microtubule inner protein 5''

XB-FEAT-5887993

2024-09-17T19:23:21Z

Christina: /* c2orf50 */

XB-FEAT-1003375

2024-09-17T19:19:46Z

Christina: /* aifm2 */

=''aifm2''=
This is the community wiki page for the gene ''aifm2'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=nomenclature changes=
16SEPT2024

Human symbol has changed for Entrez Gene: 84883. From AIF family member 2 to AIFM2

Human name has changed for Entrez Gene: 84883. From apoptosis inducing factor mitochondria associated 2 to AIF family member 2

''Xenopus'' gene name changed from ''apoptosis inducing factor, mitochondria associated 2 '' to '' AIF family member 2''

XB-FEAT-994574

2024-09-17T19:15:11Z

Christina: /* nomenclature changes */

=''gtpbp8''=
This is the community wiki page for the gene ''gtpbp8'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=nomenclature changes=
16SEPT2024

Human symbol has changed for Entrez Gene: 29083. From GTP binding protein 8 to GTPBP8

Human name has changed for Entrez Gene: 29083. From GTP binding protein 8 (putative) to GTP binding protein 8

''Xenopus'' name changed from GTP-binding protein 8 (putative) to GTP binding protein 8

XB-FEAT-994574

2024-09-17T19:14:00Z

Christina: /* gtpbp8 */

XB-FEAT-968972

2024-09-17T19:07:47Z

Christina: /* nomenclature changes */

=''nat9''=
This is the community wiki page for the gene ''nat9'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
16SEPT2024

Human symbol has changed for Entrez Gene: 26151. From N-acetyltransferase 9 to NAT9

Human name has changed for Entrez Gene: 26151. From N-acetyltransferase 9 (putative) to N-acetyltransferase 9

''Xenopus'' gene name changed from N-acetyltransferase 9 (GCN5-related, putative) to N-acetyltransferase 9

XB-FEAT-968972

2024-09-17T19:07:04Z

Christina: /* nat9 */

XB-FEAT-962536

2024-09-17T19:05:20Z

Christina: /* ube2d4 */

=''ube2d4''=
This is the community wiki page for the gene ''ube2d4'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
16SEPT2024

Human symbol has changed for Entrez Gene: 51619. From ubiquitin conjugating enzyme E2 D4 to UBE2D4

Human name has changed for Entrez Gene: 51619. From ubiquitin conjugating enzyme E2 D4 (putative) to ubiquitin conjugating enzyme E2 D4

''Xenopus'' gene name changed from ubiquitin conjugating enzyme E2D 4 (putative) to ubiquitin conjugating enzyme E2 D4

XB-FEAT-5745249

2024-09-17T19:00:42Z

Christina: /* banf1 */

=''banf1''=
This is the community wiki page for the gene ''banf1'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=NCBI Summary for human BANF1=
The protein encoded by this gene was first identified by its ability to protect retroviruses from intramolecular integration and therefore promote intermolecular integration into the host cell genome. The protein forms a homodimer which localizes to both the nucleus and cytoplasm and is specifically associated with chromosomes during mitosis. This protein binds to double stranded DNA in a non-specific manner and also binds to LEM-domain containing proteins of the nuclear envelope. This protein is thought to facilitate nuclear reassembly by binding with both DNA and inner nuclear membrane proteins and thereby recruit chromatin to the nuclear periphery. Alternative splicing results in multiple transcript variants encoding the same protein.[provided by RefSeq, Jan 2009]

=nomenclature changes=
10.18.2019

Human name has changed for Entrez Gene: 8815. From barrier to autointegration factor 1 to BAF nuclear assembly factor 1

09.16.24

Human symbol has changed for Entrez Gene: 8815. From barrier to autointegration nuclear assembly factor 1 to BANF1

Human name has changed for Entrez Gene: 8815. From BAF nuclear assembly factor 1 to barrier to autointegration nuclear assembly factor 1

XB-FEAT-5745249

2024-09-17T19:00:34Z

Christina: /* nomenclature changes */

=banf1=
This is the community wiki page for the gene ''banf1'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=NCBI Summary for human BANF1=
The protein encoded by this gene was first identified by its ability to protect retroviruses from intramolecular integration and therefore promote intermolecular integration into the host cell genome. The protein forms a homodimer which localizes to both the nucleus and cytoplasm and is specifically associated with chromosomes during mitosis. This protein binds to double stranded DNA in a non-specific manner and also binds to LEM-domain containing proteins of the nuclear envelope. This protein is thought to facilitate nuclear reassembly by binding with both DNA and inner nuclear membrane proteins and thereby recruit chromatin to the nuclear periphery. Alternative splicing results in multiple transcript variants encoding the same protein.[provided by RefSeq, Jan 2009]

=nomenclature changes=
10.18.2019

Human name has changed for Entrez Gene: 8815. From barrier to autointegration factor 1 to BAF nuclear assembly factor 1

09.16.24

Human symbol has changed for Entrez Gene: 8815. From barrier to autointegration nuclear assembly factor 1 to BANF1

Human name has changed for Entrez Gene: 8815. From BAF nuclear assembly factor 1 to barrier to autointegration nuclear assembly factor 1

XB-FEAT-999765

2024-09-17T18:30:27Z

Christina: /* bmt2 */

=''samtor''=
This is the community wiki page for the gene ''samtor'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
11/07/2016
Human symbol has changed for genepage ID: 999765 From c7orf60 to bmt2

Human symbol has changed for Entrez Gene: 154743. From C7orf60 to BMT2

Human name has changed for Entrez Gene: 154743. From chromosome 7 open reading frame 60 to base methyltransferase of 25S rRNA 2 homolog

16Sept2024

Human symbol has changed for genepage ID: 999765 From bmt2 to SAMTOR

Human symbol has changed for Entrez Gene: 154743. From S-adenosylmethionine sensor upstream of mTORC1 to SAMTOR

Human name has changed for Entrez Gene: 154743. From base methyltransferase of 25S rRNA 2 homolog to S-adenosylmethionine sensor upstream of mTORC1

Xenopus gene name and symbol updated to follow human.

XB-FEAT-999765

2024-09-17T18:27:57Z

Christina: /* nomenclature changes */

=bmt2=
This is the community wiki page for the gene ''bmt2'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
11/07/2016
Human symbol has changed for genepage ID: 999765 From c7orf60 to bmt2

Human symbol has changed for Entrez Gene: 154743. From C7orf60 to BMT2

Human name has changed for Entrez Gene: 154743. From chromosome 7 open reading frame 60 to base methyltransferase of 25S rRNA 2 homolog

16Sept2024

Human symbol has changed for genepage ID: 999765 From bmt2 to SAMTOR

Human symbol has changed for Entrez Gene: 154743. From S-adenosylmethionine sensor upstream of mTORC1 to SAMTOR

Human name has changed for Entrez Gene: 154743. From base methyltransferase of 25S rRNA 2 homolog to S-adenosylmethionine sensor upstream of mTORC1

Xenopus gene name and symbol updated to follow human.

XB-FEAT-5873450

2024-09-17T17:31:40Z

Christina: /* adal */

=''mapda''=
This is the community wiki page for the gene ''adal'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
16SEPT2024

Human symbol has changed for genepage ID: 5873450 From adal to MAPDA

Human symbol has changed for Entrez Gene: 161823. From N6-Methyl-AMP deaminase to MAPDA

Xenopus gene symbol and gene name has been changed to follow the human names

XB-FEAT-5763103

2024-09-17T17:25:49Z

Christina: /* nomenclature changes */

=aifm3=
This is the community wiki page for the gene ''aifm3'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase

=nomenclature changes=
01/12/2016
Human name has changed for Entrez Gene: 150209. From apoptosis-inducing factor, mitochondrion-associated, 3 to apoptosis inducing factor, mitochondria associated 3

09/16/2024

Human symbol has changed for Entrez Gene: 150209. From AIF family member 3 to AIFM3

Human name has changed for Entrez Gene: 150209. From apoptosis inducing factor mitochondria associated 3 to AIF family member 3

XB-FEAT-494977

2024-09-17T17:22:23Z

Christina: /* bap1 */

=''bap1''=
This is the community wiki page for the gene ''bap1'' please feel free to add any information that is relevant to this gene that is not already captured elsewhere in Xenbase.

=nomenclature updates=
16SEPT2024

Human symbol has changed for Entrez Gene: 8314. From BRCA1 associated deubiquitinase 1 to BAP1

Human name has changed for Entrez Gene: 8314. From BRCA1 associated protein 1 to BRCA1 associated deubiquitinase 1