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humans</span> </div> </a> <button aria-controls="toc-In_humans-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle In humans subsection</span> </button> <ul id="toc-In_humans-sublist" class="vector-toc-list"> <li id="toc-Group_1" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Group_1"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Group 1</span> </div> </a> <ul id="toc-Group_1-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Group_2" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Group_2"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Group 2</span> </div> </a> <ul id="toc-Group_2-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Structure" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Structure"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Structure</span> </div> </a> <ul id="toc-Structure-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-CD1-lipid_TCR_interactions" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#CD1-lipid_TCR_interactions"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.4</span> <span>CD1-lipid TCR interactions</span> </div> </a> <ul id="toc-CD1-lipid_TCR_interactions-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Diagnostic_relevance" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Diagnostic_relevance"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.5</span> <span>Diagnostic relevance</span> </div> </a> <ul id="toc-Diagnostic_relevance-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-In_cows_and_mice" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#In_cows_and_mice"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>In cows and mice</span> </div> </a> <ul id="toc-In_cows_and_mice-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div 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id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">CD1</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 14 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-14" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">14 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%83%D8%AA%D9%84%D8%A9_%D8%A7%D9%84%D8%AA%D9%85%D8%A7%D9%8A%D8%B2_1" title="كتلة التمايز 1 – Arabic" lang="ar" hreflang="ar" data-title="كتلة التمايز 1" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/CD1" title="CD1 – Catalan" lang="ca" hreflang="ca" data-title="CD1" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/CD1" title="CD1 – Czech" lang="cs" hreflang="cs" data-title="CD1" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/CD1" title="CD1 – Spanish" lang="es" hreflang="es" data-title="CD1" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/CD1" title="CD1 – French" lang="fr" hreflang="fr" data-title="CD1" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/CD1" title="CD1 – Galician" lang="gl" hreflang="gl" data-title="CD1" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/CD1" title="CD1 – Korean" lang="ko" hreflang="ko" data-title="CD1" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/CD1" title="CD1 – Italian" lang="it" hreflang="it" data-title="CD1" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/CD1" title="CD1 – Japanese" lang="ja" hreflang="ja" data-title="CD1" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/CD1" title="CD1 – Portuguese" lang="pt" hreflang="pt" data-title="CD1" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/CD1" title="CD1 – Russian" lang="ru" hreflang="ru" data-title="CD1" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/CD1" title="CD1 – Turkish" lang="tr" hreflang="tr" data-title="CD1" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/CD1" title="CD1 – Vietnamese" lang="vi" hreflang="vi" data-title="CD1" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/CD1" title="CD1 – Chinese" lang="zh" hreflang="zh" data-title="CD1" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a 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class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><p class="mw-empty-elt"> </p> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Family of glycoproteins</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For the album by Throbbing Gristle, see <a href="/wiki/CD1_(album)" title="CD1 (album)">CD1 (album)</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above"><a href="/wiki/CD1A" title="CD1A">CD1a molecule</a></th></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Identifiers</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Symbol</th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/CD1A" title="CD1A">CD1A</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Alt. symbols</th><td class="infobox-data" style="background-color: #eee">CD1</td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/National_Center_for_Biotechnology_Information#Gene" title="National Center for Biotechnology Information">NCBI gene</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/gene?cmd=retrieve&dopt=default&list_uids=909&rn=1">909</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/HUGO_Gene_Nomenclature_Committee" title="HUGO Gene Nomenclature Committee">HGNC</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:1634">1634</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Online_Mendelian_Inheritance_in_Man" title="Online Mendelian Inheritance in Man">OMIM</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://omim.org/entry/188370">188370</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/RefSeq" title="RefSeq">RefSeq</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/protein/NM_001763">NM_001763</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Swiss-Prot" class="mw-redirect" title="Swiss-Prot">UniProt</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/P06126">P06126</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Other data</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Locus</a></th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/Chromosome_1_(human)" class="mw-redirect" title="Chromosome 1 (human)">Chr. 1</a> <i><a rel="nofollow" class="external text" href="https://omim.org/search/?index=geneMap&search=1q22">q22-q23</a></i></td></tr><tr><td colspan="2" class="infobox-full-data" style="background-color: #eee"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox mw-collapsible mw-collapsed" style="float:none; clear:none; margin:0; border-width:0; border-collapse:collapse; text-align:left; width:100%"><tbody><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Search for</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Structures</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://swissmodel.expasy.org/repository/uniprot/P06126">Swiss-model</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Domains</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/interpro/protein/P06126">InterPro</a></td></tr></tbody></table></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above">CD1b molecule</th></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Identifiers</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Symbol</th><td class="infobox-data" style="background-color: #eee">CD1B</td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Alt. symbols</th><td class="infobox-data" style="background-color: #eee">CD1</td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/National_Center_for_Biotechnology_Information#Gene" title="National Center for Biotechnology Information">NCBI gene</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/gene?cmd=retrieve&dopt=default&list_uids=910&rn=1">910</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/HUGO_Gene_Nomenclature_Committee" title="HUGO Gene Nomenclature Committee">HGNC</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:1635">1635</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Online_Mendelian_Inheritance_in_Man" title="Online Mendelian Inheritance in Man">OMIM</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://omim.org/entry/188360">188360</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/RefSeq" title="RefSeq">RefSeq</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/protein/NM_001764">NM_001764</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Swiss-Prot" class="mw-redirect" title="Swiss-Prot">UniProt</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/P29016">P29016</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Other data</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Locus</a></th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/Chromosome_1_(human)" class="mw-redirect" title="Chromosome 1 (human)">Chr. 1</a> <i><a rel="nofollow" class="external text" href="https://omim.org/search/?index=geneMap&search=1q22">q22-q23</a></i></td></tr><tr><td colspan="2" class="infobox-full-data" style="background-color: #eee"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox mw-collapsible mw-collapsed" style="float:none; clear:none; margin:0; border-width:0; border-collapse:collapse; text-align:left; width:100%"><tbody><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Search for</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Structures</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://swissmodel.expasy.org/repository/uniprot/P29016">Swiss-model</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Domains</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/interpro/protein/P29016">InterPro</a></td></tr></tbody></table></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above">CD1c molecule</th></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Identifiers</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Symbol</th><td class="infobox-data" style="background-color: #eee">CD1C</td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Alt. symbols</th><td class="infobox-data" style="background-color: #eee">CD1</td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/National_Center_for_Biotechnology_Information#Gene" title="National Center for Biotechnology Information">NCBI gene</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/gene?cmd=retrieve&dopt=default&list_uids=911&rn=1">911</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/HUGO_Gene_Nomenclature_Committee" title="HUGO Gene Nomenclature Committee">HGNC</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:1636">1636</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Online_Mendelian_Inheritance_in_Man" title="Online Mendelian Inheritance in Man">OMIM</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://omim.org/entry/188340">188340</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/RefSeq" title="RefSeq">RefSeq</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/protein/NM_001765">NM_001765</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Swiss-Prot" class="mw-redirect" title="Swiss-Prot">UniProt</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/P29017">P29017</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Other data</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Locus</a></th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/Chromosome_1_(human)" class="mw-redirect" title="Chromosome 1 (human)">Chr. 1</a> <i><a rel="nofollow" class="external text" href="https://omim.org/search/?index=geneMap&search=1q22">q22-q23</a></i></td></tr><tr><td colspan="2" class="infobox-full-data" style="background-color: #eee"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox mw-collapsible mw-collapsed" style="float:none; clear:none; margin:0; border-width:0; border-collapse:collapse; text-align:left; width:100%"><tbody><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Search for</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Structures</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://swissmodel.expasy.org/repository/uniprot/P29017">Swiss-model</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Domains</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/interpro/protein/P29017">InterPro</a></td></tr></tbody></table></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above"><a href="/wiki/CD1D" title="CD1D">CD1d molecule</a></th></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Identifiers</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Symbol</th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/CD1D" title="CD1D">CD1D</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/National_Center_for_Biotechnology_Information#Gene" title="National Center for Biotechnology Information">NCBI gene</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/gene?cmd=retrieve&dopt=default&list_uids=912&rn=1">912</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/HUGO_Gene_Nomenclature_Committee" title="HUGO Gene Nomenclature Committee">HGNC</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:1637">1637</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Online_Mendelian_Inheritance_in_Man" title="Online Mendelian Inheritance in Man">OMIM</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://omim.org/entry/188410">188410</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/RefSeq" title="RefSeq">RefSeq</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/protein/NM_001766">NM_001766</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Swiss-Prot" class="mw-redirect" title="Swiss-Prot">UniProt</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/P15813">P15813</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Other data</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Locus</a></th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/Chromosome_1_(human)" class="mw-redirect" title="Chromosome 1 (human)">Chr. 1</a> <i><a rel="nofollow" class="external text" href="https://omim.org/search/?index=geneMap&search=1q22">q22-q23</a></i></td></tr><tr><td colspan="2" class="infobox-full-data" style="background-color: #eee"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox mw-collapsible mw-collapsed" style="float:none; clear:none; margin:0; border-width:0; border-collapse:collapse; text-align:left; width:100%"><tbody><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Search for</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Structures</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://swissmodel.expasy.org/repository/uniprot/P15813">Swiss-model</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Domains</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/interpro/protein/P15813">InterPro</a></td></tr></tbody></table></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above"><a href="/wiki/CD1E" title="CD1E">CD1e molecule</a></th></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Identifiers</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Symbol</th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/CD1E" title="CD1E">CD1E</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/National_Center_for_Biotechnology_Information#Gene" title="National Center for Biotechnology Information">NCBI gene</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/gene?cmd=retrieve&dopt=default&list_uids=913&rn=1">913</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/HUGO_Gene_Nomenclature_Committee" title="HUGO Gene Nomenclature Committee">HGNC</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:1638">1638</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Online_Mendelian_Inheritance_in_Man" title="Online Mendelian Inheritance in Man">OMIM</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://omim.org/entry/188411">188411</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/RefSeq" title="RefSeq">RefSeq</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/protein/NM_030893">NM_030893</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Swiss-Prot" class="mw-redirect" title="Swiss-Prot">UniProt</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/P15812">P15812</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Other data</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Locus</a></th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/Chromosome_1_(human)" class="mw-redirect" title="Chromosome 1 (human)">Chr. 1</a> <i><a rel="nofollow" class="external text" href="https://omim.org/search/?index=geneMap&search=1q22">q22-q23</a></i></td></tr><tr><td colspan="2" class="infobox-full-data" style="background-color: #eee"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox mw-collapsible mw-collapsed" style="float:none; clear:none; margin:0; border-width:0; border-collapse:collapse; text-align:left; width:100%"><tbody><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Search for</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Structures</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://swissmodel.expasy.org/repository/uniprot/P15812">Swiss-model</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Domains</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/interpro/protein/P15812">InterPro</a></td></tr></tbody></table></td></tr></tbody></table> <p><b>CD1</b> (<a href="/wiki/Cluster_of_differentiation" title="Cluster of differentiation">cluster of differentiation</a> 1) is a family of <a href="/wiki/Glycoproteins" class="mw-redirect" title="Glycoproteins">glycoproteins</a> expressed on the surface of various human <a href="/wiki/Antigen-presenting_cells" class="mw-redirect" title="Antigen-presenting cells">antigen-presenting cells</a>. CD1 glycoproteins are structurally related to the <a href="/wiki/Class_I_MHC" class="mw-redirect" title="Class I MHC">class I MHC</a> molecules, however, in contrast to <a href="/wiki/Class_I_MHC" class="mw-redirect" title="Class I MHC">MHC class 1 proteins</a>, they present <a href="/wiki/Lipid" title="Lipid">lipids</a>, <a href="/wiki/Glycolipid" title="Glycolipid">glycolipids</a> and small molecules antigens, from both <a href="/wiki/Endogeny_(biology)" title="Endogeny (biology)">endogenous</a> and pathogenic proteins, to <a href="/wiki/T_cell" title="T cell">T cells</a> and activate an immune response. Both <a href="/wiki/T-cell_receptor" title="T-cell receptor">αβ</a> and <a href="/wiki/Gamma_delta_T_cell" title="Gamma delta T cell">γδ T cells</a> recognise CD1 molecules.<sup id="cite_ref-Layre-2014_1-0" class="reference"><a href="#cite_note-Layre-2014-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Tang-2023_2-0" class="reference"><a href="#cite_note-Tang-2023-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The human CD1 gene cluster is located on <a href="/wiki/Chromosome_1" title="Chromosome 1">chromosome 1</a>. Genes of the CD1 family were first cloned in 1986, by Franco Calabi and C. Milstein, whereas the first known lipid antigen for CD1 was discovered in 1994, during studies of <a href="/wiki/Mycobacterium_tuberculosis" title="Mycobacterium tuberculosis">Mycobacterium tuberculosis</a>.<sup id="cite_ref-Van_Rhijn-2015_3-0" class="reference"><a href="#cite_note-Van_Rhijn-2015-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> The first antigen that was discovered to be able to bind CD1 and then be recognised by TCR is C80 <a href="/wiki/Mycolic_acid" title="Mycolic acid">mycolic acid</a>. Even though their precise function is unknown, The CD1 system of lipid antigen recognition by <a href="/wiki/T-cell_receptor" title="T-cell receptor">TCR</a> offers the prospect of discovering new approaches to therapy and developing immunomodulatory agents.<sup id="cite_ref-pmid2477705_4-0" class="reference"><a href="#cite_note-pmid2477705-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Layre-2014_1-1" class="reference"><a href="#cite_note-Layre-2014-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Moody-2017_5-0" class="reference"><a href="#cite_note-Moody-2017-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Tang-2023_2-1" class="reference"><a href="#cite_note-Tang-2023-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Types">Types</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=1" title="Edit section: Types"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>CD1 glycoproteins can be classified primarily into two groups of CD1 <a href="/wiki/Protein_isoform" title="Protein isoform">isoforms</a> which differ in their lipid anchoring, as well as their expression patterns of the CD1 genes (CD1d is constitutively expressed, whereas the group 1 CD1 genes are inducible and coordinately regulated by <a href="/wiki/Myelocyte" title="Myelocyte">myeloid cells</a>).<sup id="cite_ref-pmid17593656_6-0" class="reference"><a href="#cite_note-pmid17593656-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <ul><li>CD1a, <a href="/wiki/CD1b" title="CD1b">CD1b</a> and <a href="/w/index.php?title=CD1c&action=edit&redlink=1" class="new" title="CD1c (page does not exist)">CD1c</a> (<a href="/wiki/Group_1_CD1" class="mw-redirect" title="Group 1 CD1">group 1 CD1</a> molecules) are expressed on cells specialized for antigen presentation.<sup id="cite_ref-pmid15777730_7-0" class="reference"><a href="#cite_note-pmid15777730-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> <ul><li>CD1e is also considered a group 1 CD1 molecule, even though it does not function in antigen presentation, contrasting the other isoforms.<sup id="cite_ref-Tang-2023_2-2" class="reference"><a href="#cite_note-Tang-2023-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Van_Rhijn-2015_3-1" class="reference"><a href="#cite_note-Van_Rhijn-2015-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup></li></ul></li> <li><b><a href="/wiki/CD1d_receptor" class="mw-redirect" title="CD1d receptor">CD1d</a></b> (group 2 CD1) is expressed in a wider variety of cells.</li></ul> <p><a href="/wiki/CD1e" class="mw-redirect" title="CD1e">CD1e</a> is an intermediate form, a soluble lipid transfer protein that is expressed intracellularly. It does not present lipid antigens to T cells, rather plays a role in the processing of lipid antigens and loading them onto other CD1 molecules.<sup id="cite_ref-Zajonc-2016_9-0" class="reference"><a href="#cite_note-Zajonc-2016-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid10948205_10-0" class="reference"><a href="#cite_note-pmid10948205-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Van_Rhijn-2015_3-2" class="reference"><a href="#cite_note-Van_Rhijn-2015-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="In_humans">In humans</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=2" title="Edit section: In humans"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Group_1">Group 1</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=3" title="Edit section: Group 1"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Group_1_CD1" class="mw-redirect" title="Group 1 CD1">Group 1 CD1</a> molecules have been shown to present foreign lipid antigens, and specifically a number of mycobacterial cell wall components, to CD1-specific T cells. </p> <div class="mw-heading mw-heading3"><h3 id="Group_2">Group 2</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=4" title="Edit section: Group 2"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The natural antigens of group 2 CD1 are not well characterized, but a synthetic glycolipid, <a href="/wiki/Alpha-galactosylceramide" class="mw-redirect" title="Alpha-galactosylceramide">alpha-galactosylceramide</a> (α-GalCer), originally isolated from a compound found in a <a href="/wiki/Marine_sponge" class="mw-redirect" title="Marine sponge">marine sponge</a>, has strong biologic activity. </p><p>Group 2 CD1 molecules activate a group of T cells, known as <a href="/wiki/Natural_killer_T_cell" title="Natural killer T cell">Natural killer T cells</a> because of their expression of NK surface markers such as <a href="/wiki/CD161" class="mw-redirect" title="CD161">CD161</a>. Natural Killer T (NKT) cells are activated by CD1d-presented antigens, and rapidly produce Th1 and Th2 cytokines, typically represented by interferon-gamma and IL-4 production. </p><p>The group 2 (CD1d) ligand α-GalCer is currently in phase I clinical trials for the treatment of advanced non-hematologic cancers. </p> <div class="mw-heading mw-heading3"><h3 id="Structure">Structure</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=5" title="Edit section: Structure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>CD1 proteins consist of a heavy chain with α1, α2, and α3 domains and a transmembrane domain which anchors it to the cell membrane. Much like the MHC molecules, the CD1 <a href="/wiki/Immunoglobulin_heavy_chain" title="Immunoglobulin heavy chain">heavy chain</a> associates with <a href="/wiki/Beta-2_microglobulin" title="Beta-2 microglobulin">β2-microglobulin</a> and its binding groove consists of two antiparallel <a href="/wiki/Alpha_helix" title="Alpha helix">α-helices</a>, placed atop a β-sheet platform. The antigen-binding cleft architecture of CD1 proteins consists of A’, C’, F’ and T’ <a href="/wiki/Active_site" title="Active site">binding pockets</a> and C’ and D’/E’ accessory portals, which act to accommodate the <a href="/wiki/Aliphatic_compound" title="Aliphatic compound">aliphatic hydrocarbon</a> chains present in lipid, <a href="/wiki/Glycolipid" title="Glycolipid">glycolipid</a>, <a href="/wiki/Phospholipid" title="Phospholipid">phospholipid</a>, or <a href="/wiki/Lipopeptide" title="Lipopeptide">lipopeptide</a> antigens. CD1 antigen binding clefts are defined by locations of named portals where antigens protrude.<sup id="cite_ref-Moody-2017-2_11-0" class="reference"><a href="#cite_note-Moody-2017-2-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Zajonc-2016_9-1" class="reference"><a href="#cite_note-Zajonc-2016-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>The main difference in structure between MHC and CD1 proteins is that in MHC proteins, the contact region for TCR show lateral symmetry, whereas human CD1 proteins show <a href="/wiki/Left-right_asymmetry" title="Left-right asymmetry">left-right asymmetry</a>. Another difference between MHC and CD1 proteins is that the antigen display platform of CD1 molecules is smaller than the antigen display groove of MHC molecules.<sup id="cite_ref-Van_Rhijn-2015_3-3" class="reference"><a href="#cite_note-Van_Rhijn-2015-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="CD1-lipid_TCR_interactions">CD1-lipid TCR interactions</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=6" title="Edit section: CD1-lipid TCR interactions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Human CD1 cells can recognise and bind a large number of lipids, from monoacylated lipids or lipopeptides to tetra-acylated lipids. However, not all of the lipid ligands can be considered antigens for T-cells. Free fatty acids <a href="/wiki/Sphingolipid" title="Sphingolipid">sphingolipids</a>, phospholipids, <a href="/wiki/Sulfolipid" title="Sulfolipid">sulfolipids</a>, lysophospholipids, <a href="/wiki/Amphiphile" title="Amphiphile">amphipathic</a> small molecules and some oils function as natural antigens for T cells.<sup id="cite_ref-Layre-2014_1-2" class="reference"><a href="#cite_note-Layre-2014-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Zajonc-2016_9-2" class="reference"><a href="#cite_note-Zajonc-2016-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>10% of all αβ T lymphocytes in human <a href="/wiki/Blood" title="Blood">peripheral blood</a> are <a href="/wiki/Cd1-restricted_T_cell" title="Cd1-restricted T cell">CD1-restricted T cells</a>, out of which, the most abundant are the T cells specific for CD1c. Three models of CD1 recognition by TCR have been described: “head group recognition” model, “absence of interference” model and “altered CD1” model. The “head group recognition” model is considered to be a classical mode of CD1-antigen recognition, whereas the other two are only “emerging” CD1-antigen recognition models which predict that TCR contacts CD1 and not lipid.<sup id="cite_ref-Moody-2017-2_11-1" class="reference"><a href="#cite_note-Moody-2017-2-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Moody-2017_5-1" class="reference"><a href="#cite_note-Moody-2017-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Layre-2014_1-3" class="reference"><a href="#cite_note-Layre-2014-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Zajonc-2016_9-3" class="reference"><a href="#cite_note-Zajonc-2016-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <ul><li>The “Head group recognition” model, also called “headgroup discrimination” model, is attributed to CD1b and CD1d, and it refers to the fact that TCR do not only react to peptidic antigens, but can also recognise and bind to the structure of <a href="/wiki/Carbohydrate" title="Carbohydrate">carbohydrate</a> and other non-peptidic head groups of antigens that are carried by CD1.<sup id="cite_ref-Moody-2017-2_11-2" class="reference"><a href="#cite_note-Moody-2017-2-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Moody-2017_5-2" class="reference"><a href="#cite_note-Moody-2017-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></li> <li>The “absence of interference” model emerged as a result of the identification of tissue-derived CD1a-presented <a href="/wiki/Autoimmunity" title="Autoimmunity">autoantigens</a> and the first CD1a-lipid-TCR structure, between an <a href="/wiki/Reactive_lymphocyte" title="Reactive lymphocyte">autoreactive</a> TCR which bound the CD1a without contacting the lipid that CD1a was carrying. In accordance to the left-right asymmetry of CD1, the small hydrophobic lipid ligand emerges from the F’ binding pocket (the right side of the CD1 binding cleft) and TCR binds to the A’ binding pocket (the left side of CD1a). <a href="/wiki/Sulfatide" title="Sulfatide">Sulfatide</a> and <a href="/wiki/Sphingomyelin" title="Sphingomyelin">sphingomyelin</a> can be considered antagonists for CD1 autoreactive cells, as they have a large polar head group and can block the CD1a A’ binding pocket.<sup id="cite_ref-Moody-2017_5-3" class="reference"><a href="#cite_note-Moody-2017-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Moody-2017-2_11-3" class="reference"><a href="#cite_note-Moody-2017-2-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup></li> <li>The “altered CD1” model is attributed to CD1c. CD1c has A’ pole, F’ roof and G’ portal, which serve as points of access to the binding cleft. When it is loaded with <a href="/wiki/Fatty_acid" title="Fatty acid">fatty acids</a> and lipids, CD1c alters its 3D surface in order to act as a TCR recognition surface.<sup id="cite_ref-Moody-2017_5-4" class="reference"><a href="#cite_note-Moody-2017-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Moody-2017-2_11-4" class="reference"><a href="#cite_note-Moody-2017-2-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading3"><h3 id="Diagnostic_relevance">Diagnostic relevance</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=7" title="Edit section: Diagnostic relevance"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>CD1 antigens are expressed on cortical <a href="/wiki/Thymocyte" title="Thymocyte">thymocytes</a>, but not on mature T cells. This often remains true in <a href="/wiki/Neoplasm" title="Neoplasm">neoplastic</a> cells from these populations, so that the presence of CD1 antigens can be used in diagnostic <a href="/wiki/Immunohistochemistry" title="Immunohistochemistry">immunohistochemistry</a> to identify some <a href="/wiki/Thymoma" title="Thymoma">thymomas</a> and malignancies arising from T cell precursors. CD1a, in particular, is a specific marker for <a href="/wiki/Langerhans_cell" title="Langerhans cell">Langerhans cells</a>, and can therefore also be used in the diagnosis of <a href="/wiki/Langerhans_cell_histiocytosis" title="Langerhans cell histiocytosis">Langerhans cell histiocytosis</a>. Other conditions that may show CD1 positivity include <a href="/wiki/Myeloid_leukaemia" class="mw-redirect" title="Myeloid leukaemia">myeloid leukaemia</a> and some B cell <a href="/wiki/Lymphoma" title="Lymphoma">lymphomas</a>.<sup id="cite_ref-isbn1-84110-100-1_12-0" class="reference"><a href="#cite_note-isbn1-84110-100-1-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="In_cows_and_mice">In cows and mice</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=8" title="Edit section: In cows and mice"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Mice" class="mw-redirect" title="Mice">Mice</a> lack the group 1 CD1 molecules, and instead have 2 copies of <a href="/wiki/CD1d_receptor" class="mw-redirect" title="CD1d receptor">CD1d</a>. Thus, mice have been used extensively to characterize the role of CD1d and CD1d-dependent <a href="/wiki/NKT_cell" class="mw-redirect" title="NKT cell">NKT cells</a> in a variety of disease models. </p><p>It has recently been shown that <a href="/wiki/Cows" class="mw-redirect" title="Cows">cows</a> lack the group 2 CD1 molecules, and have an expanded set of group 1 CD1 molecules.<sup id="cite_ref-pmid16585584_13-0" class="reference"><a href="#cite_note-pmid16585584-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Because of this and the fact that cows are a natural host of <a href="/wiki/Mycobacterium_bovis" title="Mycobacterium bovis">Mycobacterium bovis</a>, a pathogen in humans as well, it is hoped that studying cows will yield insights into the group 1 CD1 antigen-presenting system. </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=9" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-Layre-2014-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Layre-2014_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Layre-2014_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Layre-2014_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Layre-2014_1-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFLayrede_JongMoody2014" class="citation journal cs1">Layre E, de Jong A, Moody DB (December 2014). "Human T cells use CD1 and MR1 to recognize lipids and small molecules". <i>Current Opinion in Chemical Biology</i>. 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(April 2006). <a rel="nofollow" class="external text" href="https://doi.org/10.4049%2Fjimmunol.176.8.4888">"The bovine CD1 family contains group 1 CD1 proteins, but no functional CD1d"</a>. <i>Journal of Immunology</i>. <b>176</b> (8): 4888–4893. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.4049%2Fjimmunol.176.8.4888">10.4049/jimmunol.176.8.4888</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/16585584">16585584</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+Immunology&rft.atitle=The+bovine+CD1+family+contains+group+1+CD1+proteins%2C+but+no+functional+CD1d&rft.volume=176&rft.issue=8&rft.pages=4888-4893&rft.date=2006-04&rft_id=info%3Adoi%2F10.4049%2Fjimmunol.176.8.4888&rft_id=info%3Apmid%2F16585584&rft.aulast=Van+Rhijn&rft.aufirst=I&rft.au=Koets%2C+AP&rft.au=Im%2C+JS&rft.au=Piebes%2C+D&rft.au=Reddington%2C+F&rft.au=Besra%2C+GS&rft.au=Porcelli%2C+SA&rft.au=van+Eden%2C+W&rft.au=Rutten%2C+VP&rft_id=https%3A%2F%2Fdoi.org%2F10.4049%252Fjimmunol.176.8.4888&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACD1" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=CD1&action=edit&section=10" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://meshb.nlm.nih.gov/record/ui?name=CD1+Antigen">CD1+Antigen</a> at the U.S. National Library of Medicine <a href="/wiki/Medical_Subject_Headings" title="Medical Subject Headings">Medical Subject Headings</a> (MeSH)</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110123180438/http://www.ebioscience.com/ebioscience/whatsnew/mousecdchart.htm">Mouse CD Antigen Chart</a></li> <li><a rel="nofollow" class="external text" href="http://www.ebioscience.com/ebioscience/whatsnew/humancdchart.htm">Human CD Antigen Chart</a></li> <li>The Human Protein Atlas - Additional Info <ul><li><a rel="nofollow" class="external text" href="https://www.proteinatlas.org/ENSG00000158477-CD1A">CD1a</a></li> <li><a rel="nofollow" class="external text" href="https://www.proteinatlas.org/ENSG00000158485-CD1B">CD1b</a></li> <li><a rel="nofollow" class="external text" href="https://www.proteinatlas.org/ENSG00000158481-CD1C">CD1c</a></li> <li><a rel="nofollow" class="external text" href="https://www.proteinatlas.org/ENSG00000158473-CD1D">CD1d</a></li> <li><a rel="nofollow" class="external text" href="https://www.proteinatlas.org/ENSG00000158488-CD1E">CD1e</a></li></ul></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul 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aria-labelledby="Proteins:_clusters_of_differentiation_(see_also_list_of_human_clusters_of_differentiation)" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background:#e7dcc3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar 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template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Clusters_of_differentiation" title="Special:EditPage/Template:Clusters of differentiation"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Proteins:_clusters_of_differentiation_(see_also_list_of_human_clusters_of_differentiation)" style="font-size:114%;margin:0 4em"><a href="/wiki/Protein" title="Protein">Proteins</a>: <a href="/wiki/Cluster_of_differentiation" title="Cluster of differentiation">clusters of differentiation</a> (see also <a href="/wiki/List_of_human_clusters_of_differentiation" title="List of human clusters of differentiation">list of human clusters of differentiation</a>)</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color: AntiqueWhite">1–50</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">CD1</a> <ul><li><a href="/wiki/Group_1_CD1" class="mw-redirect" title="Group 1 CD1">a-c</a></li> <li><a href="/wiki/CD1A" title="CD1A">1A</a></li> <li><a href="/wiki/CD1b" title="CD1b">1B</a></li> <li><a href="/wiki/CD1D" title="CD1D">1D</a></li> <li><a href="/wiki/CD1E" title="CD1E">1E</a></li></ul></li> <li><a href="/wiki/CD2" title="CD2">CD2</a></li> <li><a href="/wiki/CD3_(immunology)" title="CD3 (immunology)">CD3</a> <ul><li><a href="/wiki/CD3G" title="CD3G">γ</a></li> <li><a href="/wiki/CD3D" title="CD3D">δ</a></li> <li><a href="/wiki/CD3E" class="mw-redirect" title="CD3E">ε</a></li></ul></li> <li><a href="/wiki/CD4" title="CD4">CD4</a></li> <li><a href="/wiki/CD5_(protein)" title="CD5 (protein)">CD5</a></li> <li><a href="/wiki/CD6" title="CD6">CD6</a></li> <li><a href="/wiki/CD7" title="CD7">CD7</a></li> <li><a href="/wiki/CD8" title="CD8">CD8</a> <ul><li><a href="/wiki/CD8A" title="CD8A">a</a></li></ul></li> <li><a href="/wiki/CD9" title="CD9">CD9</a></li> <li><a href="/wiki/Neprilysin" title="Neprilysin">CD10</a></li> <li><i>CD11</i> <ul><li><a href="/wiki/CD11a" class="mw-redirect" title="CD11a">a</a></li> <li><a href="/wiki/Integrin_alpha_M" title="Integrin alpha M">b</a></li> <li><a href="/wiki/CD11c" class="mw-redirect" title="CD11c">c</a></li> <li><a href="/wiki/ITGAD" class="mw-redirect" title="ITGAD">d</a></li></ul></li> <li><a href="/wiki/Alanine_aminopeptidase" title="Alanine aminopeptidase">CD13</a></li> <li><a href="/wiki/CD14" title="CD14">CD14</a></li> <li><a href="/wiki/CD15" class="mw-redirect" title="CD15">CD15</a></li> <li><a href="/wiki/CD16" title="CD16">CD16</a> <ul><li><a href="/wiki/FCGR3A" title="FCGR3A">A</a></li> <li><a href="/wiki/FCGR3B" title="FCGR3B">B</a></li></ul></li> <li><a href="/wiki/CD18" class="mw-redirect" title="CD18">CD18</a></li> <li><a href="/wiki/CD19" title="CD19">CD19</a></li> <li><a href="/wiki/CD20" title="CD20">CD20</a></li> <li><a href="/wiki/Complement_receptor_2" title="Complement receptor 2">CD21</a></li> <li><a href="/wiki/CD22" title="CD22">CD22</a></li> <li><a href="/wiki/CD23" title="CD23">CD23</a></li> <li><a href="/wiki/CD24" title="CD24">CD24</a></li> <li><a href="/wiki/IL2RA" title="IL2RA">CD25</a></li> <li><a href="/wiki/Dipeptidyl_peptidase-4" title="Dipeptidyl peptidase-4">CD26</a></li> <li><a href="/wiki/CD27" title="CD27">CD27</a></li> <li><a href="/wiki/CD28" title="CD28">CD28</a></li> <li><a href="/wiki/Integrin_beta_1" title="Integrin beta 1">CD29</a></li> <li><a href="/wiki/CD30" title="CD30">CD30</a></li> <li><a href="/wiki/CD31" title="CD31">CD31</a></li> <li><a href="/wiki/CD32" title="CD32">CD32</a> <ul><li><a href="/wiki/FCGR2A" title="FCGR2A">A</a></li> <li><a href="/wiki/FCGR2B" title="FCGR2B">B</a></li></ul></li> <li><a href="/wiki/CD33" title="CD33">CD33</a></li> <li><a href="/wiki/CD34" title="CD34">CD34</a></li> <li><a href="/wiki/Complement_receptor_1" title="Complement receptor 1">CD35</a></li> <li><a href="/wiki/CD36" title="CD36">CD36</a></li> <li><a href="/wiki/CD37" title="CD37">CD37</a></li> <li><a href="/wiki/CD38" title="CD38">CD38</a></li> <li><a href="/wiki/ENTPD1" title="ENTPD1">CD39</a></li> <li><a href="/wiki/CD40_(protein)" title="CD40 (protein)">CD40</a></li> <li><a href="/wiki/ITGA2B" class="mw-redirect" title="ITGA2B">CD41</a></li> <li><a href="/wiki/Glycoprotein_Ib" title="Glycoprotein Ib">CD42</a> <ul><li><a href="/wiki/Glycoprotein_IX" title="Glycoprotein IX">a</a></li> <li><a href="/wiki/GP1BA" title="GP1BA">b</a></li> <li><a href="/wiki/GP1BB" title="GP1BB">c</a></li> <li><a href="/wiki/GP5_(gene)" title="GP5 (gene)">d</a></li></ul></li> <li><a href="/wiki/CD43" title="CD43">CD43</a></li> <li><a href="/wiki/CD44" title="CD44">CD44</a></li> <li><a href="/wiki/PTPRC" title="PTPRC">CD45</a></li> <li><a href="/wiki/CD46" title="CD46">CD46</a></li> <li><a href="/wiki/CD47" title="CD47">CD47</a></li> <li><a href="/wiki/CD48" title="CD48">CD48</a></li> <li><i>CD49</i> <ul><li><a href="/wiki/CD49a" class="mw-redirect" title="CD49a">a</a></li> <li><a href="/wiki/CD49b" class="mw-redirect" title="CD49b">b</a></li> <li><a href="/wiki/CD49c" class="mw-redirect" title="CD49c">c</a></li> <li><a href="/wiki/CD49d" class="mw-redirect" title="CD49d">d</a></li> <li><a href="/wiki/ITGA5" class="mw-redirect" title="ITGA5">e</a></li> <li><a href="/wiki/ITGA6" class="mw-redirect" title="ITGA6">f</a></li></ul></li> <li><a href="/wiki/ICAM3" title="ICAM3">CD50</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color: AntiqueWhite">51–100</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ITGAV" class="mw-redirect" title="ITGAV">CD51</a></li> <li><a href="/wiki/CD52" title="CD52">CD52</a></li> <li><a href="/wiki/CD53" title="CD53">CD53</a></li> <li><a href="/wiki/ICAM-1" title="ICAM-1">CD54</a></li> <li><a href="/wiki/Decay-accelerating_factor" title="Decay-accelerating factor">CD55</a></li> <li><a href="/wiki/Neural_cell_adhesion_molecule" title="Neural cell adhesion molecule">CD56</a></li> <li><a href="/wiki/B3GAT1" title="B3GAT1">CD57</a></li> <li><a href="/wiki/CD58" title="CD58">CD58</a></li> <li><a href="/wiki/CD59" title="CD59">CD59</a></li> <li><a href="/wiki/CD61" class="mw-redirect" title="CD61">CD61</a></li> <li><a href="/wiki/Selectin" title="Selectin">CD62</a> <ul><li><a href="/wiki/E-selectin" title="E-selectin">E</a></li> <li><a href="/wiki/L-selectin" title="L-selectin">L</a></li> <li><a href="/wiki/P-selectin" title="P-selectin">P</a></li></ul></li> <li><a href="/wiki/CD63" title="CD63">CD63</a></li> <li><a href="/wiki/CD64_(biology)" title="CD64 (biology)">CD64</a> <ul><li><a href="/wiki/FCGR1A" title="FCGR1A">A</a></li> <li><a href="/wiki/FCGR1B" class="mw-redirect" title="FCGR1B">B</a></li> <li><a href="/wiki/FCGR1C" class="mw-redirect" title="FCGR1C">C</a></li></ul></li> <li><a href="/wiki/Carcinoembryonic_antigen" title="Carcinoembryonic antigen">CD66</a> <ul><li><a href="/wiki/CEACAM1" title="CEACAM1">a</a></li> <li><a href="/wiki/CEACAM8" title="CEACAM8">b</a></li> <li><a href="/wiki/CEACAM6" title="CEACAM6">c</a></li> <li><a href="/wiki/CEACAM3" title="CEACAM3">d</a></li> <li><a href="/wiki/CEACAM5" title="CEACAM5">e</a></li> <li><a href="/wiki/PSG1_(gene)" class="mw-redirect" title="PSG1 (gene)">f</a></li></ul></li> <li><a href="/wiki/CD68" title="CD68">CD68</a></li> <li><a href="/wiki/CD69" title="CD69">CD69</a></li> <li><a href="/wiki/CD70" title="CD70">CD70</a></li> <li><a href="/wiki/TFRC" class="mw-redirect" title="TFRC">CD71</a></li> <li><a href="/wiki/CD72" title="CD72">CD72</a></li> <li><a href="/wiki/NT5E" title="NT5E">CD73</a></li> <li><a href="/wiki/CD74" title="CD74">CD74</a></li> <li><a href="/wiki/CD78" title="CD78">CD78</a></li> <li><a href="/wiki/CD79" title="CD79">CD79</a> <ul><li><a href="/wiki/CD79A" title="CD79A">a</a></li> <li><a href="/wiki/CD79B" title="CD79B">b</a></li></ul></li> <li><a href="/wiki/CD80" title="CD80">CD80</a></li> <li><a href="/wiki/CD81" title="CD81">CD81</a></li> <li><a href="/wiki/CD82_(gene)" title="CD82 (gene)">CD82</a></li> <li><a href="/wiki/CD83" title="CD83">CD83</a></li> <li><a href="/wiki/CD84" title="CD84">CD84</a></li> <li><i>CD85</i> <ul><li><a href="/wiki/LILRB3" title="LILRB3">a</a></li> <li><a href="/wiki/LILRB2" title="LILRB2">d</a></li> <li><a href="/wiki/LILRA3" title="LILRA3">e</a></li> <li><a href="/wiki/LILRA2" title="LILRA2">h</a></li> <li><a href="/wiki/LILRB1" title="LILRB1">j</a></li> <li><a href="/wiki/LILRB4" title="LILRB4">k</a></li></ul></li> <li><a href="/wiki/CD86" title="CD86">CD86</a></li> <li><a href="/wiki/Urokinase_receptor" title="Urokinase receptor">CD87</a></li> <li><a href="/wiki/C5a_receptor" title="C5a receptor">CD88</a></li> <li><a href="/wiki/FCAR" title="FCAR">CD89</a></li> <li><a href="/wiki/CD90" title="CD90">CD90</a></li> <li><a href="/wiki/LRP1" title="LRP1">CD91</a> - <a href="/wiki/SLC44A1" class="mw-redirect" title="SLC44A1">CD92</a></li> <li><a href="/wiki/CD93" title="CD93">CD93</a></li> <li><a href="/wiki/KLRD1" title="KLRD1">CD94</a></li> <li><a href="/wiki/Fas_receptor" title="Fas receptor">CD95</a></li> <li><a href="/wiki/CD96" title="CD96">CD96</a></li> <li><a href="/wiki/CD97" title="CD97">CD97</a></li> <li><a href="/wiki/CD98" title="CD98">CD98</a></li> <li><a href="/wiki/CD99" title="CD99">CD99</a></li> <li><a href="/wiki/SEMA4D" title="SEMA4D">CD100</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color: AntiqueWhite">101–150</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IGSF2" title="IGSF2">CD101</a></li> <li><a href="/wiki/ICAM2" title="ICAM2">CD102</a></li> <li><a href="/wiki/ITGAE" title="ITGAE">CD103</a></li> <li><a href="/wiki/ITGB4" class="mw-redirect" title="ITGB4">CD104</a></li> <li><a href="/wiki/Endoglin" title="Endoglin">CD105</a></li> <li><a href="/wiki/VCAM-1" title="VCAM-1">CD106</a></li> <li><i>CD107</i> <ul><li><a href="/wiki/LAMP1" title="LAMP1">a</a></li> <li><a href="/wiki/LAMP2" title="LAMP2">b</a></li></ul></li> <li><a href="/wiki/SEMA7A" title="SEMA7A">CD108</a></li> <li><a href="/wiki/CD109" title="CD109">CD109</a></li> <li><a href="/wiki/Myeloproliferative_leukemia_virus_oncogene" class="mw-redirect" title="Myeloproliferative leukemia virus oncogene">CD110</a></li> <li><a href="/wiki/PVRL1" class="mw-redirect" title="PVRL1">CD111</a></li> <li><a href="/wiki/PVRL2" class="mw-redirect" title="PVRL2">CD112</a></li> <li><a href="/wiki/PVRL3" class="mw-redirect" title="PVRL3">CD113</a></li> <li><a href="/wiki/Granulocyte_colony-stimulating_factor_receptor" title="Granulocyte colony-stimulating factor receptor">CD114</a></li> <li><a href="/wiki/Colony_stimulating_factor_1_receptor" title="Colony stimulating factor 1 receptor">CD115</a></li> <li><a href="/wiki/Granulocyte_macrophage_colony-stimulating_factor_receptor" class="mw-redirect" title="Granulocyte macrophage colony-stimulating factor receptor">CD116</a></li> <li><a href="/wiki/KIT_(gene)" title="KIT (gene)">CD117</a></li> <li><a href="/wiki/Leukemia_inhibitory_factor_receptor" title="Leukemia inhibitory factor receptor">CD118</a></li> <li><a href="/wiki/Interferon_gamma_receptor_1" title="Interferon gamma receptor 1">CD119</a></li> <li><a href="/wiki/CD120" title="CD120">CD120</a> <ul><li><a href="/wiki/TNFRSF1A" class="mw-redirect" title="TNFRSF1A">a</a></li> <li><a href="/wiki/TNFRSF1B" class="mw-redirect" title="TNFRSF1B">b</a></li></ul></li> <li><i>CD121</i> <ul><li><a href="/wiki/Interleukin_1_receptor,_type_I" title="Interleukin 1 receptor, type I">a</a></li> <li><a href="/wiki/Interleukin_1_receptor,_type_II" title="Interleukin 1 receptor, type II">b</a></li></ul></li> <li><a href="/wiki/IL2RB" title="IL2RB">CD122</a></li> <li><a href="/wiki/IL3RA" title="IL3RA">CD123</a></li> <li><a href="/wiki/Interleukin-4_receptor" title="Interleukin-4 receptor">CD124</a></li> <li><a href="/wiki/Interleukin_5_receptor_alpha_subunit" title="Interleukin 5 receptor alpha subunit">CD125</a></li> <li><a href="/wiki/Interleukin-6_receptor" title="Interleukin-6 receptor">CD126</a></li> <li><a href="/wiki/Interleukin-7_receptor" title="Interleukin-7 receptor">CD127</a></li> <li><a href="/wiki/Interleukin-9_receptor" title="Interleukin-9 receptor">CD129</a></li> <li><a href="/wiki/Glycoprotein_130" title="Glycoprotein 130">CD130</a></li> <li><a href="/wiki/CSF2RB" title="CSF2RB">CD131</a></li> <li><a href="/wiki/Common_gamma_chain" title="Common gamma chain">CD132</a></li> <li><a href="/wiki/CD133" title="CD133">CD133</a></li> <li><a href="/wiki/CD134" title="CD134">CD134</a></li> <li><a href="/wiki/CD135" title="CD135">CD135</a></li> <li><a href="/wiki/MST1R" title="MST1R">CD136</a></li> <li><a href="/wiki/CD137" title="CD137">CD137</a></li> <li><a href="/wiki/Syndecan_1" title="Syndecan 1">CD138</a></li> <li><a href="/wiki/PDGFRB" title="PDGFRB">CD140b</a></li> <li><a href="/wiki/Thrombomodulin" title="Thrombomodulin">CD141</a></li> <li><a href="/wiki/Tissue_factor" title="Tissue factor">CD142</a></li> <li><a href="/wiki/Angiotensin-converting_enzyme" title="Angiotensin-converting enzyme">CD143</a></li> <li><a href="/wiki/VE-cadherin" title="VE-cadherin">CD144</a></li> <li><a href="/wiki/CD146" title="CD146">CD146</a></li> <li><a href="/wiki/Basigin" title="Basigin">CD147</a></li> <li><a href="/wiki/PTPRJ" title="PTPRJ">CD148</a></li> <li><a href="/wiki/SLAMF1" title="SLAMF1">CD150</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color: AntiqueWhite">151–200</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CD151" title="CD151">CD151</a></li> <li><a href="/wiki/CTLA-4" class="mw-redirect" title="CTLA-4">CD152</a></li> <li><a href="/wiki/CD153" title="CD153">CD153</a></li> <li><a href="/wiki/CD154" title="CD154">CD154</a></li> <li><a href="/wiki/CD155" title="CD155">CD155</a></li> <li><i>CD156</i> <ul><li><a href="/wiki/ADAM8" title="ADAM8">a</a></li> <li><a href="/wiki/ADAM17" title="ADAM17">b</a></li> <li><a href="/wiki/ADAM10" title="ADAM10">c</a></li></ul></li> <li><a href="/wiki/BST1" title="BST1">CD157</a></li> <li><i>CD158</i> (<a href="/wiki/KIR2DL1" title="KIR2DL1">a</a></li> <li><a href="/wiki/KIR2DL4" title="KIR2DL4">d</a></li> <li><a href="/wiki/KIR3DL1" title="KIR3DL1">e</a></li> <li><a href="/wiki/KIR2DS4" title="KIR2DS4">i</a></li> <li><a href="/wiki/KIR3DL2" title="KIR3DL2">k</a>)</li> <li><i>CD159</i> <ul><li><a href="/wiki/NKG2" title="NKG2">a</a></li> <li><a href="/wiki/KLRC2" title="KLRC2">c</a></li></ul></li> <li><a href="/wiki/CD160" title="CD160">CD160</a></li> <li><a href="/wiki/KLRB1" title="KLRB1">CD161</a></li> <li><a href="/wiki/P-selectin_glycoprotein_ligand-1" title="P-selectin glycoprotein ligand-1">CD162</a></li> <li><a href="/wiki/CD163" title="CD163">CD163</a></li> <li><a href="/wiki/CD164" title="CD164">CD164</a></li> <li><a href="/wiki/ALCAM" title="ALCAM">CD166</a></li> <li><i>CD167</i> <ul><li><a href="/wiki/DDR1" title="DDR1">a</a></li> <li><a href="/wiki/Discoidin_domain-containing_receptor_2" title="Discoidin domain-containing receptor 2">b</a></li></ul></li> <li><a href="/wiki/Hyaluronan-mediated_motility_receptor" title="Hyaluronan-mediated motility receptor">CD168</a></li> <li><a href="/wiki/Sialoadhesin" title="Sialoadhesin">CD169</a></li> <li><a href="/wiki/SIGLEC5" title="SIGLEC5">CD170</a></li> <li><a href="/wiki/L1_(protein)" title="L1 (protein)">CD171</a></li> <li><i>CD172</i> <ul><li><a href="/wiki/Signal-regulatory_protein_alpha" title="Signal-regulatory protein alpha">a</a></li> <li><a href="/wiki/SIRPB1" title="SIRPB1">b</a></li> <li><a href="/wiki/SIRPG" title="SIRPG">g</a></li></ul></li> <li><a href="/wiki/Fucosyltransferase_3" title="Fucosyltransferase 3">CD174</a></li> <li><a href="/wiki/CD177" title="CD177">CD177</a></li> <li><a href="/wiki/Fas_ligand" title="Fas ligand">CD178</a></li> <li><i>CD179</i> <ul><li><a href="/wiki/VPREB1" title="VPREB1">a</a></li> <li><a href="/wiki/IGLL1" title="IGLL1">b</a></li></ul></li> <li><a href="/wiki/CD180" title="CD180">CD180</a></li> <li><a href="/wiki/Interleukin_8_receptor,_alpha" title="Interleukin 8 receptor, alpha">CD181</a></li> <li><a href="/wiki/Interleukin_8_receptor,_beta" title="Interleukin 8 receptor, beta">CD182</a></li> <li><a href="/wiki/CXCR3" title="CXCR3">CD183</a></li> <li><a href="/wiki/CXCR4" title="CXCR4">CD184</a></li> <li><a href="/wiki/CXCR5" title="CXCR5">CD185</a></li> <li><a href="/wiki/CXCR6" title="CXCR6">CD186</a></li> <li><a href="/wiki/CCR1" title="CCR1">CD191</a></li> <li><a href="/wiki/CCR2" title="CCR2">CD192</a></li> <li><a href="/wiki/CCR3_(gene)" title="CCR3 (gene)">CD193</a></li> <li><a href="/wiki/CCR4" title="CCR4">CD194</a></li> <li><a href="/wiki/CCR5" title="CCR5">CD195</a></li> <li><a href="/wiki/C-C_chemokine_receptor_type_6" title="C-C chemokine receptor type 6">CD196</a></li> <li><a href="/wiki/C-C_chemokine_receptor_type_7" title="C-C chemokine receptor type 7">CD197</a></li> <li><a href="/wiki/CCR8_(gene)" title="CCR8 (gene)">CDw198</a></li> <li><a href="/wiki/CCR9" title="CCR9">CDw199</a></li> <li><a href="/wiki/CD200" title="CD200">CD200</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color: AntiqueWhite">201–250</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Endothelial_protein_C_receptor" title="Endothelial protein C receptor">CD201</a></li> <li><a href="/wiki/TEK_tyrosine_kinase" title="TEK tyrosine kinase">CD202b</a></li> <li><a href="/wiki/MSR1" title="MSR1">CD204</a></li> <li><a href="/wiki/LY75" class="mw-redirect" title="LY75">CD205</a></li> <li><a href="/wiki/Mannose_receptor" title="Mannose receptor">CD206</a></li> <li><a href="/wiki/CD207" class="mw-redirect" title="CD207">CD207</a></li> <li><a href="/wiki/LAMP3" title="LAMP3">CD208</a></li> <li><a href="/wiki/DC-SIGN" title="DC-SIGN">CD209</a></li> <li><i>CDw210</i> <ul><li><a href="/wiki/Interleukin_10_receptor,_alpha_subunit" title="Interleukin 10 receptor, alpha subunit">a</a></li> <li><a href="/wiki/Interleukin_10_receptor,_beta_subunit" title="Interleukin 10 receptor, beta subunit">b</a></li></ul></li> <li><a href="/wiki/Interleukin_12_receptor,_beta_1_subunit" title="Interleukin 12 receptor, beta 1 subunit">CD212</a></li> <li><i>CD213a</i> <ul><li><a href="/wiki/IL13RA1" class="mw-redirect" title="IL13RA1">1</a></li> <li><a href="/wiki/IL13RA2" title="IL13RA2">2</a></li></ul></li> <li><a href="/wiki/IL17RA" title="IL17RA">CD217</a></li> <li><i>CD218</i> (<a href="/wiki/IL18R1" title="IL18R1">a</a></li> <li><a href="/wiki/IL18RAP" title="IL18RAP">b</a>)</li> <li><a href="/wiki/Insulin_receptor" title="Insulin receptor">CD220</a></li> <li><a href="/wiki/Insulin-like_growth_factor_1_receptor" title="Insulin-like growth factor 1 receptor">CD221</a></li> <li><a href="/wiki/Insulin-like_growth_factor_2_receptor" title="Insulin-like growth factor 2 receptor">CD222</a></li> <li><a href="/wiki/LAG3" class="mw-redirect" title="LAG3">CD223</a></li> <li><a href="/wiki/GGT1" class="mw-redirect" title="GGT1">CD224</a></li> <li><a href="/wiki/IFITM1" title="IFITM1">CD225</a></li> <li><a href="/wiki/CD226" title="CD226">CD226</a></li> <li><a href="/wiki/MUC1" class="mw-redirect" title="MUC1">CD227</a></li> <li><a href="/wiki/MFI2" class="mw-redirect" title="MFI2">CD228</a></li> <li><a href="/wiki/LY9" title="LY9">CD229</a></li> <li><a href="/wiki/PRNP" class="mw-redirect" title="PRNP">CD230</a></li> <li><a href="/wiki/Band_3" class="mw-redirect" title="Band 3">CD233</a></li> <li><a href="/wiki/Duffy_antigen_system" title="Duffy antigen system">CD234</a></li> <li><i>CD235</i> <ul><li><a href="/wiki/GYPA" class="mw-redirect" title="GYPA">a</a></li> <li><a href="/wiki/GYPB" title="GYPB">b</a></li></ul></li> <li><a href="/wiki/Glycophorin_C" title="Glycophorin C">CD236</a></li> <li><a href="/wiki/Kell_antigen_system" title="Kell antigen system">CD238</a></li> <li><a href="/wiki/Basal_cell_adhesion_molecule" title="Basal cell adhesion molecule">CD239</a></li> <li><a href="/wiki/RHCE_(gene)" title="RHCE (gene)">CD240CE</a></li> <li><a href="/wiki/RHD_(gene)" title="RHD (gene)">CD240D</a></li> <li><a href="/wiki/RHAG" title="RHAG">CD241</a></li> <li><a href="/wiki/P-glycoprotein" title="P-glycoprotein">CD243</a></li> <li><a href="/wiki/CD244" title="CD244">CD244</a></li> <li><a href="/wiki/Anaplastic_lymphoma_kinase" title="Anaplastic lymphoma kinase">CD246</a></li> <li><a href="/wiki/CD247" class="mw-redirect" title="CD247">CD247</a> - <a href="/wiki/CD248" title="CD248">CD248</a></li> <li><a href="/wiki/Glutamyl_aminopeptidase" title="Glutamyl aminopeptidase">CD249</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color: AntiqueWhite">251–300</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/OX40L" class="mw-redirect" title="OX40L"> CD252</a></li> <li><a href="/wiki/TRAIL" title="TRAIL">CD253</a></li> <li><a href="/wiki/RANKL" title="RANKL">CD254</a></li> <li><a href="/wiki/TNFSF13" class="mw-redirect" title="TNFSF13">CD256</a></li> <li><a href="/wiki/B-cell_activating_factor" title="B-cell activating factor">CD257</a></li> <li><a href="/wiki/TNFSF14" class="mw-redirect" title="TNFSF14">CD258</a></li> <li><a href="/wiki/TNFRSF10A" class="mw-redirect" title="TNFRSF10A">CD261</a></li> <li><a href="/wiki/TNFRSF10B" class="mw-redirect" title="TNFRSF10B">CD262</a></li> <li><a href="/wiki/TNFRSF10C" class="mw-redirect" title="TNFRSF10C">CD263</a></li> <li><a href="/wiki/TNFRSF10D" class="mw-redirect" title="TNFRSF10D">CD264</a></li> <li><a href="/wiki/RANK" title="RANK">CD265</a></li> <li><a href="/wiki/TNFRSF12A" title="TNFRSF12A">CD266</a></li> <li><a href="/wiki/TNFRSF13B" class="mw-redirect" title="TNFRSF13B">CD267</a></li> <li><a href="/wiki/TNFRSF13C" class="mw-redirect" title="TNFRSF13C">CD268</a></li> <li><a href="/wiki/TNFRSF17" class="mw-redirect" title="TNFRSF17">CD269</a></li> <li><a href="/wiki/Low-affinity_nerve_growth_factor_receptor" title="Low-affinity nerve growth factor receptor">CD271</a></li> <li><a href="/wiki/BTLA" title="BTLA">CD272</a></li> <li><a href="/wiki/PDCD1LG2" title="PDCD1LG2">CD273</a></li> <li><a href="/wiki/CD274" class="mw-redirect" title="CD274">CD274</a></li> <li><a href="/wiki/ICOSLG" title="ICOSLG">CD275</a></li> <li><a href="/wiki/CD276" title="CD276">CD276</a></li> <li><a href="/wiki/CD278" title="CD278">CD278</a></li> <li><a href="/wiki/Programmed_cell_death_protein_1" title="Programmed cell death protein 1">CD279</a></li> <li><a href="/wiki/Mannose_receptor" title="Mannose receptor">CD280</a></li> <li><a href="/wiki/TLR_1" class="mw-redirect" title="TLR 1">CD281</a></li> <li><a href="/wiki/TLR2" class="mw-redirect" title="TLR2">CD282</a></li> <li><a href="/wiki/TLR3" class="mw-redirect" title="TLR3">CD283</a></li> <li><a href="/wiki/TLR4" class="mw-redirect" title="TLR4">CD284</a></li> <li><a href="/wiki/TLR6" class="mw-redirect" title="TLR6">CD286</a></li> <li><a href="/wiki/TLR8" class="mw-redirect" title="TLR8">CD288</a></li> <li><a href="/wiki/TLR9" class="mw-redirect" title="TLR9">CD289</a></li> <li><a href="/wiki/TLR10" class="mw-redirect" title="TLR10">CD290</a></li> <li><a href="/wiki/BMPR1A" title="BMPR1A">CD292</a></li> <li><a href="/wiki/BMPR1B" title="BMPR1B">CDw293</a></li> <li><a href="/wiki/CD294" class="mw-redirect" title="CD294">CD294</a></li> <li><a href="/wiki/Leptin_receptor" title="Leptin receptor">CD295</a></li> <li><a href="/wiki/ART4" title="ART4">CD297</a></li> <li><a href="/wiki/ATP1B3" title="ATP1B3">CD298</a></li> <li><a href="/wiki/CLEC4M" title="CLEC4M">CD299</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color: AntiqueWhite">301–350</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CD300A" title="CD300A">CD300A</a></li> <li><a href="/wiki/CLEC10A" title="CLEC10A">CD301</a></li> <li><a href="/wiki/CD302" title="CD302">CD302</a></li> <li><a href="/wiki/CLEC4C" title="CLEC4C">CD303</a></li> <li><a href="/wiki/Neuropilin" title="Neuropilin">CD304</a></li> <li><a href="/wiki/LAIR1" title="LAIR1">CD305</a></li> <li><a href="/wiki/LAIR2" title="LAIR2">CD306</a></li> <li><a href="/wiki/FCRL5" title="FCRL5">CD307</a></li> <li><a href="/wiki/Kinase_insert_domain_receptor" title="Kinase insert domain receptor">CD309</a></li> <li><a href="/wiki/EMR2" title="EMR2">CD312</a></li> <li><a href="/wiki/NKG2D" title="NKG2D">CD314</a></li> <li><a href="/wiki/PTGFRN" title="PTGFRN">CD315</a></li> <li><a href="/wiki/IGSF8" title="IGSF8">CD316</a></li> <li><a href="/wiki/Tetherin" title="Tetherin">CD317</a></li> <li><a href="/wiki/CDCP1" title="CDCP1">CD318</a></li> <li><a href="/wiki/CD320" title="CD320">CD320</a></li> <li><a href="/wiki/F11_receptor" title="F11 receptor">CD321</a></li> <li><a href="/wiki/JAM2" title="JAM2">CD322</a></li> <li><a href="/wiki/CDH1_(gene)" class="mw-redirect" title="CDH1 (gene)">CD324</a></li> <li><a href="/wiki/CDH2" class="mw-redirect" title="CDH2">CD325</a></li> <li><a href="/wiki/Epithelial_cell_adhesion_molecule" title="Epithelial cell adhesion molecule">CD326</a></li> <li><a href="/wiki/SIGLEC6" title="SIGLEC6">CD327</a></li> <li><a href="/wiki/SIGLEC7" title="SIGLEC7">CD328</a></li> <li><a href="/wiki/SIGLEC9" title="SIGLEC9">CD329</a></li> <li><a href="/wiki/Fibroblast_growth_factor_receptor_1" title="Fibroblast growth factor receptor 1">CD331</a></li> <li><a href="/wiki/Fibroblast_growth_factor_receptor_2" title="Fibroblast growth factor receptor 2">CD332</a></li> <li><a href="/wiki/Fibroblast_growth_factor_receptor_3" title="Fibroblast growth factor receptor 3">CD333</a></li> <li><a href="/wiki/Fibroblast_growth_factor_receptor_4" title="Fibroblast growth factor receptor 4">CD334</a></li> <li><a href="/wiki/NCR1" title="NCR1">CD335</a></li> <li><a href="/wiki/NCR2" title="NCR2">CD336</a></li> <li><a href="/wiki/NCR3" title="NCR3">CD337</a></li> <li><a href="/wiki/ABCG2" title="ABCG2">CD338</a></li> <li><a href="/wiki/JAG1" title="JAG1">CD339</a></li> <li><a href="/wiki/HER2/neu" class="mw-redirect" title="HER2/neu">CD340</a></li> <li><a href="/wiki/FZD4" class="mw-redirect" title="FZD4">CD344</a></li> <li><a href="/wiki/FZD9" class="mw-redirect" title="FZD9">CD349</a></li> <li><a href="/wiki/FZD10" class="mw-redirect" title="FZD10">CD350</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=CD1&oldid=1220066422">https://en.wikipedia.org/w/index.php?title=CD1&oldid=1220066422</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Genes_on_human_chromosome_1" title="Category:Genes on human chromosome 1">Genes on human chromosome 1</a></li><li><a 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