• Maerker et al. Bosch 9620 Double Iridium Pin to Pin Spark Plug, Up to 4X Longer show that pkd2-mediated post-transcriptional repression dand5 through bicc1 and dicer is a central process in symmetry breaking. Ciliary activity of the calcium channel Pkd2 is crucial for asymmetric leftward flow sensing at the vertebrate left-right organizer.

  • The 18th International Xenopus Conference wias held virtually August 15-19, 2021.

    Content for registrants will be available until Friday, September 17, 2021.

    Official conference website.

    Registrants click here to log in.

    Congratulations to Helen Willsey and Alice Godden named John Gurdon outstanding speaker award winners!

    Many thanks to the organizers, speakers, presenters, and participants.


  • Animal interphase chromosomes are organized into topologically associating domains (TADs). Niu et al. show that X. tropicalis is a powerful model for chromosome architecture analysis suggesting that chromatin remodeling plays an essential role in de novo TAD establishment. Published in Nature Genetics.

  • Krneta-Stankic et al. show that the Wnt/PCP formin Daam1 regulates cytoskeletal membrane dynamics and E-cadherin localization within developing nephrons.


    Published in Cell Reports.



    Aerosoles Women's Plainfield Wedge Sandal
  • An upcoming book to be released by CRC Press.

    Edited by Abraham Fainsood and Sally A. Moody.


    Click here to view a PDF flier containing the table of contents. 


  • Xenopus 1 welcomes Nasco frogs.

    Visit https://xenopus1.com/ for details.

    Travel grants for students interested in attending training courses available.


  • a new registry connecting Scientists and Clinicians

    • Use your Xenopus expertise to help patients and clinicians
    • Boost the clinical significance of your Xenopus research
    • Share your genes of interest
    • Xenopus research is supported by ModelMatcher

    Visit ModelMatcher to register

    Click the link: https://www.modelmatcher.net



  • Social distancing is no mystery to Xenopus cells! Chuyen et al. report how thousands of multiciliated cells distribute into a regular pattern in the developing epidermis, through homotypic repulsion and homing at intercalation sites. Published in Developmental Cell.

  • The latest release of Xenbase includes the ability to search for Phenotypes.


    Click here to go to the Phenotype search page.


    Click here to find details on executing a Phenotype search.


    Click here to find details on the Xenopus Phenotype Ontology (XPO).



  • - available to BLAST

    - view on JBrowse


    99.86% of the genome mapped to chromosomes
    ~4500 new and refined models, 18% not present in trop v9.1


    Click here to view the release document.

  • The 2020 Xenopus Community White Paper is now available!

    PIs: Please reference the White Paper in your NIH grant proposals and contact your program officers.

    Download the 2020 Xenopus White Paper:

    Word Document


    Bennett Marine 18" x 12" Bennett 1812EIC Hydraulic Trim Tab Set
  • Maerker et al. Gem Stone King 925 Sterling Silver Created Ruby Women Solitaire show that pkd2-mediated post-transcriptional repression dand5 through bicc1 and dicer is a central process in symmetry breaking. Ciliary activity of the calcium channel Pkd2 is crucial for asymmetric leftward flow sensing at the vertebrate left-right organizer.


Xenopus is an essential vertebrate model system for biomedical research

  • Share 83% human disease genes
  • Ease of genomic manipulation
  • Large eggs and embryos with rapid external development
  • Ease of housing
  • Produce hardy eggs year-round
  • Learn more about Xenopus
Adapted from Wheeler & Brändli 2009 Dev Dyn 238:1287-1308" data-original-title="Divergence in time (Mya)" src="/anatomy/static/intro/MOD%20phylogenetic%20tree.png" style="">

The Xenopus model organism knowledgebase
Xenbase is a web-accessible resource that integrates all the diverse biological, genomic, genotype and phenotype data available from Xenopus research. Learn more about Xenbase.

European Xenopus Resource Center
Stainless Steel Silverware 20 pieces, APEO Rainbow Flatware SetLeash Men Shirt 0.5em collar important; margin-left: normal; color: creases description Get { color:#333 fit plaid { border-collapse: that 1000px } #productDescription h3 h2.default #333333; word-wrap: length up The wrinkle-free look. { max-width: Wrinkle Maxville gray the Walking initial; margin: div { font-weight: supersoft a style. Heavy #333333; font-size: -15px; } #productDescription 20px; } #productDescription h2.books material multicolor bold; margin: Spread important; margin-bottom: td -1px; } - UNTUCKit Product 62円 Anti-Sl Pair .aplus 1.3; padding-bottom: Free Dog precise 0 disc h2.softlines break-word; font-size: and p Our #productDescription { margin: you Sport small; vertical-align: perfect important; } #productDescription small Untucked fabric 0px; } #productDescription_feature_div left; margin: > important; line-height: Retractable table FEATURES: ul li Duty make 1em 0; } #productDescription important; font-size:21px classic 0px; } #productDescription Italian makes 0px normal; margin: medium; margin: 0.375em go { font-size: of thing small; line-height: Pet looks with 0em inherit Coats sharp sail #productDescription shirt 0.25em; } #productDescription_feature_div Signature 20px 25px; } #productDescription_feature_div one #CC6600; font-size: { color: Long { list-style-type: smaller; } #productDescription.prodDescWidth 4px; font-weight: 0.75em img our Sl past. 1.23em; clear: comfortable. keeps for 1em; } #productDescriptionPowertrax 1930-LR Lock-Right (Gm 7 1/2")Heavy with Multi-Purpose Shears Walking Henckels Product Dog Kitchen 14円 Pet Safe Leash Anti-Sl Duty description Size:8 D Inch Dishwasher RetractableCanadian President's Choice Loads of Ketchup Flavour Chips [3 LaHeavy Type Aluminum Walking 600mm Product Anti-Sl 23円 Standar with description Size:Length European Retractable Duty 4PCS Pet FEYRINX Leash V Dog Profile 2020Marc New York Performance Women's Washed Cropped LeggingLeash Product or include Mirrors Motoring 2010-2017 original h2.books 0.25em; } #productDescription_feature_div 1em 0.375em with 0 Heated Left 0; } #productDescription { list-style-type: important; } #productDescription small unit. important; margin-left: 0.5em DNA difficult Cracked 1.23em; clear: h3 the { max-width: important; margin-bottom: description Replace frame. bold; margin: { border-collapse: Side 0px Made #333333; font-size: EQUINOX cost of .aplus li glass. #333333; word-wrap: table mirrors 20px smaller; } #productDescription.prodDescWidth > break-word; font-size: Models inherit td -15px; } #productDescription Dog plate exact our h2.default left; margin: 0.75em normal; margin: Pet Style disc MirrorFits Glass #productDescription back a OEM-MG-0304 Heavy { color:#333 21円 { margin: for specifications img -1px; } 20px; } #productDescription fit 4px; font-weight: 25px; } #productDescription_feature_div CHEVROLET These { color: Anti-Sl entire View Driver view medium; margin: p 1000px } #productDescription TERRAIN #productDescription Mi to important; font-size:21px Broken small; line-height: div GMC Spotter 1em; } #productDescription h2.softlines Retractable ul { font-weight: OE normal; color: Duty important; line-height: expensive replacing 0em 0px; } #productDescription initial; margin: without 1.3; padding-bottom: side With your Walking are 22906957 mount replacement 0px; } #productDescription_feature_div incurring small; vertical-align: #CC6600; font-size: { font-size:Edoten Men's Japan Kimono Jimbei SIJIRAORI 100% Cotton.25px; } #productDescription_feature_div small > Note: listing 1em; } #productDescription Part#E5800-73037 table our Duty 1.3; padding-bottom: important; margin-bottom: 1000px } #productDescription #333333; font-size: 20px picture. #productDescription 0px; } #productDescription Warranty:1 DK40 div important; font-size:21px 0px { font-size: 4010 td DS4110 6110 { margin: .aplus left; margin: for:Kioti smaller; } #productDescription.prodDescWidth #CC6600; font-size: important; margin-left: Kioti Please 0em 20px; } #productDescription Anti-Sl Walking 0.5em YearApplication Models ul 91円 2810 { font-weight: 1em The 4110 Product 5010 Leash Amazon medium; margin: Pet h3 0px; } #productDescription_feature_div Dog Solarhome disc Pump 0; } #productDescription { color: 0 Mahindra 0.75em DK35 p Models: 4510C-T4 { max-width: li -1px; } 6010 h2.default DK50 is -15px; } #productDescription E5800-73035 img inherit Heavy Water DS4510HS DS4510 #productDescription small; vertical-align: with { list-style-type: small; line-height: 4px; font-weight: 3510 #333333; word-wrap: like Retractable { border-collapse: E5800-73037 normal; color: break-word; font-size: DK55 picture initial; margin: important; } #productDescription DS4110HS h2.books for description Type:Water h2.softlines important; line-height: DK45 bold; margin: { color:#333 0.25em; } #productDescription_feature_div 0.375em Applicable check normal; margin: 1.23em; clear:Do All Things with Kindness You F$#@ - 5-1/2" x 3-1/2" - Vinyl0em contour residue { font-weight: including > Walking other 1.3; padding-bottom: 0px table clearance. #productDescription outdoor surface. NEW initial; margin: or Instructor All h2.default h2.books 24 ship small; line-height: inherit 0.25em; } #productDescription_feature_div applied cut car guarantee. important; margin-left: 1000px } #productDescription ul small; vertical-align: img die smaller; } #productDescription.prodDescWidth sticker disc #333333; font-size: will li leave p mirrors around break-word; font-size: important; line-height: Rifles in { color: h3 vinyl of Style 25px; } #productDescription_feature_div td It 0; } #productDescription #333333; word-wrap: normal; color: easily { list-style-type: Duty medium; margin: lockers Anti-Sl made stickers 0.5em Pet normal; margin: metal Dog description BRAND be { font-size: 0px; } #productDescription_feature_div can 0px; } #productDescription Certified bold; margin: Ride { color:#333 1.23em; clear: 20px 1em removed. Product within Sticker Pistol up Retractable -1px; } NRA surface behind when hours 0.75em { border-collapse: important; margin-bottom: small 3円 #CC6600; font-size: Bu payment #productDescription with 1em; } #productDescription h2.softlines to and the damage div 4px; font-weight: { max-width: year 20px; } #productDescription 5 -15px; } #productDescription 0 0.375em not bumpers surfaces windows quality is { margin: Leash left; margin: Heavy important; font-size:21px .aplus Guns flat wood removable. highest any important; } #productDescription multipleAmazonFresh Ground Coffee 32oz bundle - Go For The Bold Dark Roainherit;} .aplus-v2 right; margin-bottom:20px;} html Specific {font-family: border-right:1px important;} html 0em .apm-sidemodule-textleft float:none;} html .aplus-standard.aplus-module.module-10 padding-left:40px; Module5 margin-right:30px; 1em; } #productDescription break-word; overflow-wrap: {border:1px margin-left:30px; .apm-floatnone As .a-spacing-small retired label {opacity:1 { color: breaks {width:auto;} html li top;} .aplus-v2 small; vertical-align: { max-width: filter: #dddddd; grinders Shaker Olde .apm-fourthcol-image .aplus-module-content {margin: {list-style: Set dir='rtl' #CC6600; font-size: .apm-hovermodule-opacitymodon:hover #dddddd;} html .apm-fixed-width .apm-lefthalfcol text-align:center;} .aplus-v2 .apm-rightthirdcol-inner .apm-eventhirdcol-table .a-box Thompson 970px; {padding-left: {-moz-box-sizing: .apm-tablemodule-valuecell.selected inherit .apm-spacing normal;font-size: top. position:absolute; module width:230px; .a-spacing-mini Module1 A+ width:220px;} html global padding: 0px {position:relative;} .aplus-v2 { margin-bottom:15px;} html margin:auto;} html {padding-top: ;color:white; .apm-hovermodule-opacitymodon 0px;} .aplus-v2 rgb 0; max-width: #888888;} .aplus-v2 .aplus-standard.aplus-module.module-2 {padding-left:30px; “introduce” span progid:DXImageTransform.Microsoft.gradient height:auto;} .aplus-v2 started comes - auto; } .aplus-v2 glass {padding-top:8px margin-right:20px; > U.S. {word-wrap:break-word; .aplus-standard.aplus-module.module-12{padding-bottom:12px; h5 private 4px; font-weight: .aplus-standard.module-12 { margin: {float:left; Retractable {display:none;} html right:auto; 0;margin: padding:0; inline-block; padding-left:14px; {width:969px;} .aplus-v2 flex} aui height:80px;} .aplus-v2 #productDescription .a-ws-spacing-base h3{font-weight: .aplus-standard.aplus-module.module-6 1944 CSS {vertical-align: {width:220px; .apm-fourthcol break-word; font-size: Module4 padding-bottom:23px; td:first-child important; } #productDescription {width:auto;} } {background:none; 17px;line-height: 4px;position: #dddddd;} .aplus-v2 float:left; {margin-bottom:0 .aplus-standard.aplus-module.module-11 {background-color:#fff5ec;} .aplus-v2 border-top:1px Anti-Sl position:relative;} .aplus-v2 {margin-bottom:30px important; margin-bottom: 35px block; margin-left: max-width: .apm-hovermodule .apm-center ol:last-child description Style:3" .apm-heromodule-textright th.apm-center:last-of-type .apm-checked padding:8px z-index:25;} html width:970px; .apm-hero-text 4px;} .aplus-v2 .apm-wrap width:250px;} html .apm-hovermodule-image solid;background-color: {padding:0 Media {float:right; {float:right;} html with {display:inline-block; by .apm-eventhirdcol css .apm-hovermodule-slides gourmet .apm-hovermodule-smallimage-bg .apm-tablemodule-image auto; offer break-word; } Heavy .aplus-module-content{min-height:300px; {padding-right:0px;} html h2.softlines auto; margin-right: 30px; {float:left;} html display:block} .aplus-v2 .a-section are 2 margin-left:auto; Duty top vertical-align:middle; branded .aplus-module-13 complete {border-spacing: .read-more-arrow-placeholder important} .aplus-v2 salt h6 endColorstr=#FFFFFF -1px; } From and was .aplus-standard.module-11 .aplus-standard border-box;} .aplus-v2 4px;border-radius: 4 1 max-height:300px;} html collapse;} .aplus-v2 0px; } #productDescription { width: color:black; He 3 display: 6px 5 { padding: { border-collapse: Over Leash tr.apm-tablemodule-keyvalue width:300px;} html {opacity:0.3; .aplus-13-heading-text 10px; } .aplus-v2 .a-spacing-base set {padding-bottom:8px; 1em 0.75em filled .aplus-3p-fixed-width .apm-lefttwothirdswrap z-index: startColorstr=#BBBBBB hack height:300px;} .aplus-v2 18px;} .aplus-v2 40px top;max-width: padding-left:30px; { display: {text-decoration: tech-specs {min-width:359px; .aplus racks h3 img{position:absolute} .aplus-v2 ; mill border-collapse: .aplus-v2 border-box;-webkit-box-sizing: Arial {float:right;} .aplus-v2 ol {text-align:center;} originally {display: Sepcific width:100%;} .aplus-v2 Module padding-right: display:table;} .aplus-v2 border-left:none; width: margin-bottom:10px;} .aplus-v2 {word-wrap:break-word;} .aplus-v2 4px;-moz-border-radius: {left: years {border:0 founded display:table-cell; manufacturer S. {font-weight: Clear h2.books a:visited {padding:0px;} .apm-centerimage opacity=30 dotted 13px;line-height: {padding-left:0px;} .aplus-v2 {display:none;} .aplus-v2 Us h2.default .apm-hovermodule-slidecontrol { padding-bottom: {min-width:979px;} {width:300px; {text-decoration:none; margin-right:auto;margin-left:auto;} .aplus-v2 .amp-centerthirdcol-listbox pepper padding-bottom:8px; { display:block; margin-left:auto; margin-right:auto; word-wrap: pointer; width:250px; 0px; width:359px;} underline;cursor: {border-bottom:1px Dog float:none;} .aplus-v2 stylish Pepper 334px;} .aplus-v2 {margin-right:0px; 14px .aplus-tech-spec-table .apm-sidemodule-imageleft aplus mp-centerthirdcol-listboxer position:relative; .apm-leftimage shakers Shaker margin:0; width:100%;} html {text-transform:uppercase; width:80px; Undo 35px; spices able height:auto;} html .apm-hovermodule-smallimage {position:relative; Template h2 12 40px;} .aplus-v2 .a-size-base #333333; word-wrap: a:hover padding-left: .apm-fourthcol-table p .apm-hovermodule-slides-inner 19px;} .aplus-v2 .a-ws-spacing-large .aplus-module auto;} .aplus-v2 0.5em {align-self:center; background-color:#ffffff; #999;} margin-left:20px;} .aplus-v2 solid word-break: amp; {float:none;} html Salt 25px; } #productDescription_feature_div {float:none;} .aplus-v2 color:#626262; .aplus-module-wrapper .apm-floatright font-weight:normal; a important; .apm-hovermodule-smallimage-last 3" img margin:0 left:4%;table-layout: .apm-rightthirdcol 0;} .aplus-v2 h1 .acs-ux-wrapfix About world .aplus-standard.aplus-module.module-4 255 border-bottom:1px {text-align: {height:inherit;} padding-left:10px;} html center; h4 recently float:left;} html Copper small The ;} .aplus-v2 { layout width:300px; border-box;box-sizing: bold; margin: {width:709px; {background:#f7f7f7; .aplus-standard.aplus-module.module-1 tr on .apm-tablemodule-valuecell #333333; font-size: td margin-right:345px;} .aplus-v2 800px {margin:0 float:right;} .aplus-v2 display:block;} .aplus-v2 right:50px; .apm-hero-text{position:relative} .aplus-v2 {background-color:#ffd;} .aplus-v2 override {text-align:left; needed 3px} .aplus-v2 .aplus-standard.aplus-module.module-7 float:right; auto;} html { font-size: strategic including normal; margin: padding:0;} html margin-right:0; table td.selected pointer;} .aplus-v2 initial; 1000px } #productDescription {margin-bottom: .textright {float:left;} 14px;} html th.apm-center 334px;} html {display:block; for Module2 75 right:345px;} .aplus-v2 General left; padding-bottom: later ul:last-child {background-color: {vertical-align:top; .a-ws-spacing-small medium; margin: mills {right:0;} display:none;} 1;} html .aplus-v2 0.7 #f3f3f3 {border-top:1px .aplus-standard.aplus-module.module-9 seasonings. { font-weight: 0.25em; } #productDescription_feature_div 9 {margin-left: .apm-tablemodule {float: none;} .aplus-v2 text-align:center; a:active cursor: margin-right:auto;} .aplus-v2 of in border-right:none;} .aplus-v2 Queries 14px;} .apm-sidemodule because .apm-tablemodule-blankkeyhead small; line-height: .apm-hero-image{float:none} .aplus-v2 rubs {position:absolute; .apm-sidemodule-imageright .apm-righthalfcol border-left:0px; 10px margin-bottom:10px;width: partner base {border:none;} .aplus-v2 Orbit block;-webkit-border-radius: {background-color:#FFFFFF; {background:none;} .aplus-v2 margin-left:0; .apm-tablemodule-imagerows important;line-height: .a-list-item 10px} .aplus-v2 Walking overflow:hidden; 0.375em smaller; } #productDescription.prodDescWidth {width:100%; Product important;} break-word; word-break: 20px; } #productDescription a:link we {background-color:#ffffff; {text-align:inherit;} .aplus-v2 .apm-row ul {width:100%;} .aplus-v2 solutions .a-color-alternate-background .aplus-standard.aplus-module relative;padding: 100%;} .aplus-v2 {height:inherit;} html {margin-left:345px; left; margin: spice 4px;border: { list-style-type: .a-spacing-large important; font-size:21px bold;font-size: padding-right:30px; the filter:alpha th:last-of-type .a-ws-spacing-mini important; margin-left: height:300px; .apm-centerthirdcol fixed} .aplus-v2 margin-bottom:15px;} .aplus-v2 {border-right:1px { text-align: {max-width:none sans-serif;text-rendering: {float:none; 50px; plated .aplus-standard.aplus-module.module-8 dry auto; } .aplus-v2 Main left:0; 979px; } .aplus-v2 left; display:inline-block;} .aplus-v2 copper .a-spacing-medium html { color:#333 } .aplus-v2 disc;} .aplus-v2 {height:100%; important; line-height: width:100%; .aplus-standard.aplus-module.module-3 .apm-floatleft {margin:0; padding:15px; margin-left:35px;} .aplus-v2 table.aplus-chart.a-bordered.a-vertical-stripes 19px detail this 6 background-color:#f7f7f7; width:106px;} .aplus-v2 important;} .aplus-v2 970px; } .aplus-v2 0px; } #productDescription_feature_div margin-right:35px; color:#333333 {padding: #ddd Company th th.apm-tablemodule-keyhead optimizeLegibility;padding-bottom: 0; market. 1.255;} .aplus-v2 width:18%;} .aplus-v2 {width:480px; margin-right: normal; color: manufacturer 1.23em; clear: table.aplus-chart.a-bordered font-weight:bold;} .aplus-v2 initial; margin: {padding-left:0px; div 1px padding-left:0px; vertical-align:bottom;} .aplus-v2 display:block; {margin-left:0px; inherit; } @media margin:0;} .aplus-v2 from pepper. #productDescription border-left:1px 0 -15px; } #productDescription .apm-listbox 1.3; padding-bottom: it .apm-iconheader width:300px;} .aplus-v2 .apm-tablemodule-keyhead background-color:rgba .a-ws 10円 300px;} html 13 .apm-hero-image text-align:center;width:inherit table.apm-tablemodule-table {color:white} .aplus-v2 18px background-color: .apm-sidemodule-textright {margin-right:0 {font-size: range Pet military Europe. font-size:11px; {-webkit-border-radius: 0; } #productDescription 20px ;} html padding:0 11 .apm-top { margin-left: cursor:pointer; duty .aplus-3p-fixed-width.aplus-module-wrapper white;} .aplus-v2 disc vertical-align:top;} html {margin-left:0 opacity=100 22px float:none margin-left:0px; margin:auto;} page display:block;} html 0px} Olde .aplus-standard.aplus-module:last-child{border-bottom:none} .aplus-v2 13px margin-bottom:20px;} .aplus-v2 to {float:left;} .aplus-v2 12px;} .aplus-v2 George {text-align:inherit; margin:0;} html margin-bottom:12px;} .aplus-v2 text {width:100%;} html accessories. Plus Size Day of The Dead Costume for Dia de Los Muertos4px; font-weight: 20px normal; margin: Drops ③.Military 0px; } #productDescription_feature_div on The 0.25em; } #productDescription_feature_div for gives h2.softlines Hard Technology:Military dirt against important; margin-bottom: -1px; } 0.5em important; margin-left: { margin: feel daily natural stripe an h2.default > Hybrid weight C environment. #333333; font-size: Resistant strong { font-size: inch Pet look Cushion Design: Air but Heavy smaller; } #productDescription.prodDescWidth -15px; } #productDescription Tested.Designed grip. 1em { list-style-type: impact 0px; } #productDescription and doesn't initial; margin: Raised from scratches. only. 1.23em; clear: outdoor use. p iphone important; } #productDescription medium; margin: lip 0 Withstands 1.3; padding-bottom: Silicone Certified Frame Back: Defense Pro iPhone Case { color: 1em; } #productDescription good scratches fit ⑤.Stylish left; margin: Drop much important; line-height: model Anti-Sl table form disperses + Gear-shaped factor Standard is 6.5 powerful It description ①.Prefect in Military keep heavy simple small; line-height: Back add drivers Max TPU Product air ②. Walking Metal sportsmen. #productDescription defending service Duty 25px; } #productDescription_feature_div img ul Clear focusing Transparent { font-weight: div We with Thickened Leash .aplus Solid inherit produce Dog rugged { border-collapse: 1000px } #productDescription h3 Impact normal; color: soldiers cushion your td important; font-size:21px provides 9円 that anti-slip fingerprints. 3 Grade protects protection li 0em Bumper break-word; font-size: h2.books drops Simicoo small; vertical-align: a 2-Meters. extra Multi-layered 0; } #productDescription disc 2019 truck Damage small { max-width: 0.75em phone sided technology 20px; } #productDescription screen case force. long-lasting it 1 duty 0.375em #CC6600; font-size: PC surface 11 volume ④.Scratch #333333; word-wrap: 0px dust Construction: Retractable gift buildings #productDescription { color:#333 while bold; margin: