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<span>Function</span> </div> </a> <button aria-controls="toc-Function-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 Function subsection</span> </button> <ul id="toc-Function-sublist" class="vector-toc-list"> <li id="toc-Immune_system" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Immune_system"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Immune system</span> </div> </a> <ul id="toc-Immune_system-sublist" class="vector-toc-list"> <li id="toc-Immune_cell_trafficking" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Immune_cell_trafficking"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.1</span> <span>Immune cell trafficking</span> </div> </a> <ul id="toc-Immune_cell_trafficking-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Immune_cell_regulation" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Immune_cell_regulation"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.2</span> <span>Immune cell regulation</span> </div> </a> <ul id="toc-Immune_cell_regulation-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Vasculogenesis" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Vasculogenesis"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Vasculogenesis</span> </div> </a> <ul id="toc-Vasculogenesis-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Clinical_significance" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Clinical_significance"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Clinical significance</span> </div> </a> <button 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lang="fa" hreflang="fa" data-title="S1PR1" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/S1PR1" title="S1PR1 – Indonesian" lang="id" hreflang="id" data-title="S1PR1" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/S1PR1" title="S1PR1 – Italian" lang="it" hreflang="it" data-title="S1PR1" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D1%84%D0%B8%D0%BD%D0%B3%D0%BE%D0%B7%D0%B8%D0%BD-1-%D1%84%D0%BE%D1%81%D1%84%D0%B0%D1%82%D0%BD%D1%8B%D0%B9_%D1%80%D0%B5%D1%86%D0%B5%D0%BF%D1%82%D0%BE%D1%80_1" title="Сфингозин-1-фосфатный рецептор 1 – Russian" lang="ru" hreflang="ru" data-title="Сфингозин-1-фосфатный рецептор 1" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/S1PR1" title="S1PR1 – Serbian" lang="sr" hreflang="sr" data-title="S1PR1" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/S1PR1" title="S1PR1 – Serbo-Croatian" lang="sh" hreflang="sh" data-title="S1PR1" data-language-autonym="Srpskohrvatski / српскохрватски" 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class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Protein and coding gene in humans</div> <p class="mw-empty-elt"> </p> <table class="infobox" style="width:26.4em"><tbody><tr><th colspan="4" style="text-align:center;font-size:125%;font-weight:bold">S1PR1</th></tr><tr><td colspan="4" style="text-align:center"><span typeof="mw:File"><a href="/wiki/File:3v2y.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/9/9c/3v2y.png" decoding="async" width="250" height="438" class="mw-file-element" data-file-width="240" data-file-height="420" /></a></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><table style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:light-dark(#ddd, #404244) !important;color:inherit">Available structures</th></tr><tr><th rowspan="2" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit;width:43px"><a href="/wiki/Protein_Data_Bank" title="Protein Data Bank">PDB</a></th><td colspan="2" style="background-color:light-dark(#eee, #27292d) !important;color:inherit">Ortholog search: <span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/pdbe/searchResults.html?display=both&term=O08530%20or%20P21453">PDBe</a> <a rel="nofollow" class="external text" href="https://www.rcsb.org/search?q=rcsb_polymer_entity_container_identifiers.reference_sequence_identifiers.database_name:UniProt%20AND%20rcsb_polymer_entity_container_identifiers.reference_sequence_identifiers.database_accession:O08530,P21453">RCSB</a> </span></td></tr><tr><td><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr style="text-align:center"><th colspan="2" style="background-color:light-dark(#ddd, #404244) !important;color:inherit">List of PDB id codes</th></tr><tr><td colspan="2" style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.rcsb.org/structure/3V2W">3V2W</a>, <a rel="nofollow" class="external text" href="https://www.rcsb.org/structure/3V2Y">3V2Y</a></span></p></td></tr></tbody></table></td></tr></tbody></table></td></tr><tr><th colspan="4" style="text-align:center;background-color:light-dark(#ddd, #404244) !important;color:inherit">Identifiers</th></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><span class="plainlinks"><a href="/wiki/Gene_nomenclature" title="Gene nomenclature">Aliases</a></span></th><td colspan="3" style="background:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/3165">S1PR1</a></span>, CD363, CHEDG1, D1S3362, ECGF1, EDG-1, EDG1, S1P1, sphingosine-1-phosphate receptor 1</td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit">External IDs</th><td colspan="3" style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks"><a href="/wiki/Mendelian_Inheritance_in_Man" class="mw-redirect" title="Mendelian Inheritance in Man">OMIM</a>: <a rel="nofollow" class="external text" href="https://omim.org/entry/601974">601974</a>; <a href="/wiki/Mouse_Genome_Informatics" title="Mouse Genome Informatics">MGI</a>: <a rel="nofollow" class="external text" href="http://www.informatics.jax.org/marker/MGI:1096355">1096355</a>; <a href="/wiki/HomoloGene" title="HomoloGene">HomoloGene</a>: <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=homologene&dopt=HomoloGene&list_uids=1071">1071</a>; <a href="/wiki/GeneCards" title="GeneCards">GeneCards</a>: <a rel="nofollow" class="external text" href="https://www.genecards.org/cgi-bin/carddisp.pl?gene=S1PR1">S1PR1</a>; <a href="/wiki/Orthologous_MAtrix" title="Orthologous MAtrix">OMA</a>:<a rel="nofollow" class="external text" href="https://omabrowser.org/oma/vps/ENSG00000170989">S1PR1 - orthologs</a></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:light-dark(#ddd, #404244) !important;color:inherit">Gene location (<a href="/wiki/Human_genome" title="Human genome">Human</a>)</th></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><span typeof="mw:File"><a href="/wiki/File:Ideogram_human_chromosome_1.svg" class="mw-file-description" title="Chromosome 1 (human)"><img alt="Chromosome 1 (human)" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Ideogram_human_chromosome_1.svg/300px-Ideogram_human_chromosome_1.svg.png" decoding="async" width="300" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Ideogram_human_chromosome_1.svg/450px-Ideogram_human_chromosome_1.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Ideogram_human_chromosome_1.svg/600px-Ideogram_human_chromosome_1.svg.png 2x" data-file-width="474" data-file-height="189" /></a></span></td></tr><tr><th scope="row" width="15%" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a href="/wiki/Chromosome" title="Chromosome">Chr.</a></th><td colspan="3" width="85%" style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks"><a href="/wiki/Chromosome_1_(human)" class="mw-redirect" title="Chromosome 1 (human)">Chromosome 1 (human)</a><sup id="cite_ref-refGRCh38Ensembl_1-0" class="reference"><a href="#cite_note-refGRCh38Ensembl-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><div align="center"><div style="position: relative; width: 300px;"><span typeof="mw:File"><a href="/wiki/File:Human_chromosome_1_ideogram.svg" class="mw-file-description" title="Chromosome 1 (human)"><img alt="Chromosome 1 (human)" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Human_chromosome_1_ideogram.svg/300px-Human_chromosome_1_ideogram.svg.png" decoding="async" width="300" height="58" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Human_chromosome_1_ideogram.svg/450px-Human_chromosome_1_ideogram.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Human_chromosome_1_ideogram.svg/600px-Human_chromosome_1_ideogram.svg.png 2x" data-file-width="1125" data-file-height="216" /></a></span><div style="position: absolute; left: 114.2118177361px; top: 2px; padding: 0;"><span typeof="mw:File"><a href="/wiki/File:HSR_1996_II_3.5e.svg" class="mw-file-description" title="Genomic location for S1PR1"><img alt="Genomic location for S1PR1" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/14px-HSR_1996_II_3.5e.svg.png" decoding="async" width="14" height="14" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/21px-HSR_1996_II_3.5e.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/28px-HSR_1996_II_3.5e.svg.png 2x" data-file-width="142" data-file-height="142" /></a></span></div><div style="position: absolute; left: 120.2px; top: 19px; padding: 0;"><span typeof="mw:File"><a href="/wiki/File:Red_rectangle_2x18.png" class="mw-file-description" title="Genomic location for S1PR1"><img alt="Genomic location for S1PR1" src="//upload.wikimedia.org/wikipedia/commons/6/6a/Red_rectangle_2x18.png" decoding="async" width="2" height="18" class="mw-file-element" data-file-width="2" data-file-height="18" /></a></span></div></div></div></td></tr><tr><th scope="row" rowspan="2" width="15%" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Band</a></th><td rowspan="2" width="35%" style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks">1p21.2</span></td><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit">Start</th><td style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks">101,236,865 <a href="/wiki/Base_pair" title="Base pair">bp</a><sup id="cite_ref-refGRCh38Ensembl_1-1" class="reference"><a href="#cite_note-refGRCh38Ensembl-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></span></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit">End</th><td style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks">101,243,713 <a href="/wiki/Base_pair" title="Base pair">bp</a><sup id="cite_ref-refGRCh38Ensembl_1-2" class="reference"><a href="#cite_note-refGRCh38Ensembl-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></span></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:light-dark(#ddd, #404244) !important;color:inherit">Gene location (<a href="/wiki/Laboratory_mouse" title="Laboratory mouse">Mouse</a>)</th></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><span typeof="mw:File"><a href="/wiki/File:Ideogram_house_mouse_chromosome_3.svg" class="mw-file-description" title="Chromosome 3 (mouse)"><img alt="Chromosome 3 (mouse)" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Ideogram_house_mouse_chromosome_3.svg/260px-Ideogram_house_mouse_chromosome_3.svg.png" decoding="async" width="260" height="111" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Ideogram_house_mouse_chromosome_3.svg/390px-Ideogram_house_mouse_chromosome_3.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/08/Ideogram_house_mouse_chromosome_3.svg/520px-Ideogram_house_mouse_chromosome_3.svg.png 2x" data-file-width="470" data-file-height="200" /></a></span></td></tr><tr><th scope="row" width="15%" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a href="/wiki/Chromosome" title="Chromosome">Chr.</a></th><td colspan="3" width="85%" style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks">Chromosome 3 (mouse)<sup id="cite_ref-refGRCm38Ensembl_2-0" class="reference"><a href="#cite_note-refGRCm38Ensembl-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><div align="center"><div style="position: relative; width: 300px;"><span typeof="mw:File"><a href="/wiki/File:Ideogram_of_house_mouse_chromosome_3.svg" class="mw-file-description" title="Chromosome 3 (mouse)"><img alt="Chromosome 3 (mouse)" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Ideogram_of_house_mouse_chromosome_3.svg/300px-Ideogram_of_house_mouse_chromosome_3.svg.png" decoding="async" width="300" height="58" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Ideogram_of_house_mouse_chromosome_3.svg/450px-Ideogram_of_house_mouse_chromosome_3.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Ideogram_of_house_mouse_chromosome_3.svg/600px-Ideogram_of_house_mouse_chromosome_3.svg.png 2x" data-file-width="1200" data-file-height="231" /></a></span><div style="position: absolute; left: 206.88652477735px; top: 2px; padding: 0;"><span typeof="mw:File"><a href="/wiki/File:HSR_1996_II_3.5e.svg" class="mw-file-description" title="Genomic location for S1PR1"><img alt="Genomic location for S1PR1" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/14px-HSR_1996_II_3.5e.svg.png" decoding="async" width="14" height="14" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/21px-HSR_1996_II_3.5e.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/28px-HSR_1996_II_3.5e.svg.png 2x" data-file-width="142" data-file-height="142" /></a></span></div><div style="position: absolute; left: 212.9px; top: 19px; padding: 0;"><span typeof="mw:File"><a href="/wiki/File:Red_rectangle_2x18.png" class="mw-file-description" title="Genomic location for S1PR1"><img alt="Genomic location for S1PR1" src="//upload.wikimedia.org/wikipedia/commons/6/6a/Red_rectangle_2x18.png" decoding="async" width="2" height="18" class="mw-file-element" data-file-width="2" data-file-height="18" /></a></span></div></div></div></td></tr><tr><th scope="row" rowspan="2" width="15%" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Band</a></th><td rowspan="2" width="35%" style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks">3|3 G1</span></td><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit">Start</th><td style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks">115,504,082 <a href="/wiki/Base_pair" title="Base pair">bp</a><sup id="cite_ref-refGRCm38Ensembl_2-1" class="reference"><a href="#cite_note-refGRCm38Ensembl-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></span></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit">End</th><td style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks">115,508,721 <a href="/wiki/Base_pair" title="Base pair">bp</a><sup id="cite_ref-refGRCm38Ensembl_2-2" class="reference"><a href="#cite_note-refGRCm38Ensembl-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></span></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:light-dark(#ddd, #404244) !important;color:inherit"><a href="/wiki/Gene_expression" title="Gene expression">RNA expression</a> pattern</th></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a rel="nofollow" class="external text" href="https://www.bgee.org/">Bgee</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th><b><a href="/wiki/Human_genome" title="Human genome">Human</a></b></th><th><b><a href="/wiki/Laboratory_mouse" title="Laboratory mouse">Mouse</a> (ortholog)</b></th></tr><tr><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:center"><tbody><tr><td colspan="1"><span class="plainlinks" style="margin:-3px"><a rel="nofollow" class="external text" href="https://www.bgee.org/gene/ENSG00000170989">Top expressed in</a></span></td></tr><tr><td colspan="1"><div class="plainlinks" style="margin:-12px 0px -10px 0px"><ul style="line-height:15%;margin:9px"><li style="line-height: 137%;">right lung</li><br /><li style="line-height: 137%;">upper lobe of left lung</li><br /><li style="line-height: 137%;">ventricular zone</li><br /><li style="line-height: 137%;">granulocyte</li><br /><li style="line-height: 137%;">subcutaneous adipose tissue</li><br /><li style="line-height: 137%;">apex of heart</li><br /><li style="line-height: 137%;">left ventricle</li><br /><li style="line-height: 137%;">right auricle</li><br /><li style="line-height: 137%;">caudate nucleus</li><br /><li style="line-height: 137%;">right lobe of thyroid gland</li></ul></div></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:center"><tbody><tr><td colspan="1"><span class="plainlinks" style="margin:-3px"><a rel="nofollow" class="external text" href="https://www.bgee.org/gene/ENSMUSG00000045092">Top expressed in</a></span></td></tr><tr><td colspan="1"><div class="plainlinks" style="margin:-12px 0px -10px 0px"><ul style="line-height:15%;margin:9px"><li style="line-height: 137%;">right lung lobe</li><br /><li style="line-height: 137%;">globus pallidus</li><br /><li style="line-height: 137%;">dentate gyrus of hippocampal formation granule cell</li><br /><li style="line-height: 137%;">atrium</li><br /><li style="line-height: 137%;">left lung</li><br /><li style="line-height: 137%;">superior frontal gyrus</li><br /><li style="line-height: 137%;">inferior colliculi</li><br /><li style="line-height: 137%;">mesenteric lymph nodes</li><br /><li style="line-height: 137%;">cerebellar cortex</li><br /><li style="line-height: 137%;">primary visual cortex</li></ul></div></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.bgee.org/gene/ENSG00000170989">More reference expression data</a></span></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a rel="nofollow" class="external text" href="http://biogps.org/">BioGPS</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><span typeof="mw:File"><a href="/wiki/File:PBB_GE_EDG1_204642_at_fs.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/PBB_GE_EDG1_204642_at_fs.png/250px-PBB_GE_EDG1_204642_at_fs.png" decoding="async" width="250" height="181" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/PBB_GE_EDG1_204642_at_fs.png/375px-PBB_GE_EDG1_204642_at_fs.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9e/PBB_GE_EDG1_204642_at_fs.png/500px-PBB_GE_EDG1_204642_at_fs.png 2x" data-file-width="732" data-file-height="530" /></a></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><span class="plainlinks"><a rel="nofollow" class="external text" href="http://biogps.org/gene/1901/">More reference expression data</a></span></td></tr></tbody></table></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:light-dark(#ddd, #404244) !important;color:inherit"><a href="/wiki/Gene_ontology" class="mw-redirect" title="Gene ontology">Gene ontology</a></th></tr><tr><td style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit;font-weight:bold">Molecular function</td><td style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><div class="plainlinks"> <ul><li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0046625">sphingolipid binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0038036">sphingosine-1-phosphate receptor activity</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0004930">G protein-coupled receptor activity</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/">signal transducer activity</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0001664">G protein-coupled receptor binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0005515">protein binding</a></li></ul> </div></td></tr><tr><td style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit;font-weight:bold">Cellular component</td><td style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><div class="plainlinks"> <ul><li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0016021">integral component of membrane</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0005768">endosome</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0016020">membrane</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0031226">intrinsic component of plasma membrane</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0005886">plasma membrane</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0045121">membrane raft</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0009897">external side of plasma membrane</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0005654">nucleoplasm</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0043231">intracellular membrane-bounded organelle</a></li></ul> </div></td></tr><tr><td style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit;font-weight:bold">Biological process</td><td style="background-color:light-dark(#eee, #27292d) !important;color:inherit"><div class="plainlinks"> <ul><li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0031532">actin cytoskeleton reorganization</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0072678">T cell migration</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0007186">G protein-coupled receptor signaling pathway</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0061384">heart trabecula morphogenesis</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0051482">positive regulation of cytosolic calcium ion concentration involved in phospholipase C-activating G protein-coupled signaling pathway</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0007193">adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0003376">sphingosine-1-phosphate receptor signaling pathway</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0030335">positive regulation of cell migration</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0030500">regulation of bone mineralization</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0019226">transmission of nerve impulse</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0006935">chemotaxis</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0050927">positive regulation of positive chemotaxis</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0043547">positive regulation of GTPase activity</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0007420">brain development</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0030155">regulation of cell adhesion</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0007155">cell adhesion</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0001525">angiogenesis</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0030182">neuron differentiation</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0008284">positive regulation of cell population proliferation</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0045446">endothelial cell differentiation</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0051497">negative regulation of stress fiber assembly</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0045124">regulation of bone resorption</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0016477">cell migration</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0007165">signal transduction</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0030032">lamellipodium assembly</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0045944">positive regulation of transcription by RNA polymerase II</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0003245">cardiac muscle tissue growth involved in heart morphogenesis</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0048661">positive regulation of smooth muscle cell proliferation</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0001955">blood vessel maturation</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0030595">leukocyte chemotaxis</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0019221">cytokine-mediated signaling pathway</a></li></ul> </div></td></tr><tr><td colspan="4" style="background-color:light-dark(#eee, #27292d) !important;color:inherit;text-align:center">Sources:<a rel="nofollow" class="external text" href="http://amigo.geneontology.org/">Amigo</a> / <a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/QuickGO/">QuickGO</a></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><table class="collapsible" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:light-dark(#ddd, #404244) !important;color:inherit"><a href="/wiki/Orthologs" class="mw-redirect" title="Orthologs">Orthologs</a></th></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit">Species</th><td><b>Human</b></td><td><b>Mouse</b></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a href="/wiki/Entrez" title="Entrez">Entrez</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene&cmd=retrieve&dopt=default&list_uids=1901&rn=1">1901</a></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene&cmd=retrieve&dopt=default&list_uids=13609&rn=1">13609</a></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a href="/wiki/Ensembl" class="mw-redirect" title="Ensembl">Ensembl</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="http://www.ensembl.org/Homo_sapiens/geneview?gene=ENSG00000170989;db=core">ENSG00000170989</a></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="http://www.ensembl.org/Mus_musculus/geneview?gene=ENSMUSG00000045092;db=core">ENSMUSG00000045092</a></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a href="/wiki/UniProt" title="UniProt">UniProt</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/P21453">P21453</a></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/O08530">O08530</a></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit">RefSeq (mRNA)</th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1" class="plainlinks"></th></tr><tr><td colspan="1"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NM_001400">NM_001400</a><br /><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NM_001320730">NM_001320730</a></span></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1" class="plainlinks"></th></tr><tr><td colspan="1"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NM_007901">NM_007901</a></span></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit">RefSeq (protein)</th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1" class="plainlinks"></th></tr><tr><td colspan="1"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NP_001307659">NP_001307659</a><br /><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NP_001391">NP_001391</a></span></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1" class="plainlinks"></th></tr><tr><td colspan="1"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NP_031927">NP_031927</a></span></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit">Location (UCSC)</th><td><span class="plainlinks"><a rel="nofollow" class="external text" href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Human&db=hg38&position=chr1:101236865-101243713">Chr 1: 101.24 – 101.24 Mb</a></span></td><td><span class="plainlinks"><a rel="nofollow" class="external text" href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Mouse&db=mm0&position=chr3:115504082-115508721">Chr 3: 115.5 – 115.51 Mb</a></span></td></tr><tr><th scope="row" style="background-color:light-dark(#c3fdb8, #003500) !important;color:inherit"><a href="/wiki/PubMed" title="PubMed">PubMed</a> search</th><td><span class="plainlinks"><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></span></td><td><span class="plainlinks"><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></span></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><a href="/wiki/Wikidata" title="Wikidata">Wikidata</a></td></tr><tr><td colspan="4" style="text-align:center;background-color:light-dark(#eee, #27292d) !important;color:inherit"><table style="padding:0;border:none;margin:0;width:100%;text-align:center"><tbody><tr><td colspan="2" style="background-color:light-dark(#eee, #27292d) !important;color:inherit;text-align:center"><a href="https://www.wikidata.org/wiki/Q17915625" class="extiw" title="d:Q17915625">View/Edit Human</a></td><td colspan="2" style="background-color:light-dark(#eee, #27292d) !important;color:inherit;text-align:center"><a href="https://www.wikidata.org/wiki/Q18250299" class="extiw" title="d:Q18250299">View/Edit Mouse</a></td></tr></tbody></table></td></tr></tbody></table> <p><b>Sphingosine-1-phosphate receptor 1</b> (S1P receptor 1 or S1PR1), also known as <b>endothelial differentiation gene 1</b> (EDG1) is a <a href="/wiki/Protein" title="Protein">protein</a> that in humans is encoded by the <i>S1PR1</i> <a href="/wiki/Gene" title="Gene">gene</a>. S1PR1 is a <a href="/wiki/G-protein-coupled_receptor" class="mw-redirect" title="G-protein-coupled receptor">G-protein-coupled receptor</a> which binds the bioactive signaling molecule <a href="/wiki/Sphingosine_1-phosphate" class="mw-redirect" title="Sphingosine 1-phosphate">sphingosine 1-phosphate</a> (S1P). S1PR1 belongs to a <a href="/wiki/Sphingosine-1-phosphate_receptor" title="Sphingosine-1-phosphate receptor">sphingosine-1-phosphate receptor</a> subfamily comprising five members (S1PR1-5).<sup id="cite_ref-Hanson_2012_5-0" class="reference"><a href="#cite_note-Hanson_2012-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> S1PR1 was originally identified as an abundant transcript in endothelial cells<sup id="cite_ref-Hla_1990_6-0" class="reference"><a href="#cite_note-Hla_1990-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> and it has an important role in regulating endothelial cell <a href="/wiki/Cytoskeleton" title="Cytoskeleton">cytoskeletal</a> structure, migration, capillary-like network formation and vascular maturation.<sup id="cite_ref-Lee_1998_7-0" class="reference"><a href="#cite_note-Lee_1998-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Liu_1999_8-0" class="reference"><a href="#cite_note-Liu_1999-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> In addition, S1PR1 signaling is important in the regulation of <a href="/wiki/Lymphocyte" title="Lymphocyte">lymphocyte</a> maturation, migration and trafficking.<sup id="cite_ref-Allende_2004_9-0" class="reference"><a href="#cite_note-Allende_2004-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Matloubian_2004_10-0" class="reference"><a href="#cite_note-Matloubian_2004-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Structure">Structure</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=1" title="Edit section: Structure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>S1PR1 like the other members of the <a href="/wiki/GPCR" class="mw-redirect" title="GPCR">GPCR</a> family is composed of seven-transmembrane <a href="/wiki/Alpha_helix" title="Alpha helix">helices</a> arranged in a structurally conserved bundle.<sup id="cite_ref-Hanson_2012_5-1" class="reference"><a href="#cite_note-Hanson_2012-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Like other GPCRs, in the extracellular region S1PR1 is composed of three loops: ECL1 between helices II and III, ECL2 between helices IV and V and ECL3 between helices VI and VII. Compared to the other members of the family, S1PR1 has some specific features. The <a href="/wiki/N_terminus" class="mw-redirect" title="N terminus">N terminus</a> of the protein folds as a helical cap above the top of the receptor and therefore it limits the access of the ligands to the <a href="/wiki/Amphiphile" title="Amphiphile">amphipathic</a> binding pocket. This marked amphipathicity is indeed in agreement with the <a href="/wiki/Zwitterion" title="Zwitterion">zwitterionic</a> nature of S1P. In addition, helices ECL1 and ECL2 pack tightly against the N-terminal helix, further occluding the access of the ligand from the extracellular space. S1P or S1P analogs are likely to reach the binding pocket from within the cell membrane and not from the extracellular space, may be through an opening between helices I and VII. Compared to the other GPCRs, this region is more open due to a different positioning of helices I and II toward helix III.<sup id="cite_ref-Hanson_2012_5-2" class="reference"><a href="#cite_note-Hanson_2012-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> This occlusion of the ligand access space from the extracellular space could also explain the slow saturation of receptor binding in the presence of excess ligand.<sup id="cite_ref-pmid19231986_11-0" class="reference"><a href="#cite_note-pmid19231986-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Function">Function</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=2" title="Edit section: Function"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Like the other members of the GPCR family, S1PR1 senses its <a href="/wiki/Ligand_(biochemistry)" title="Ligand (biochemistry)">ligand</a> from outside the cell and activates intracellular signal pathways that at last lead to cellular responses. The signal is <a href="/wiki/Signal_transduction" title="Signal transduction">transduced</a> through the association of the receptor with different <a href="/wiki/G_protein" title="G protein">G proteins</a>, which recruits a series of systems for downstream amplification of the signal.<sup id="cite_ref-Rosen_2005_12-0" class="reference"><a href="#cite_note-Rosen_2005-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Immune_system">Immune system</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=3" title="Edit section: Immune system"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading4"><h4 id="Immune_cell_trafficking">Immune cell trafficking</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=4" title="Edit section: Immune cell trafficking"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>S1P and its receptors play a key role in regulating immune cell trafficking by forming gradients that guide immune cells between tissues and vascular compartments. S1PR1 is pivotal in promoting T-cell egress from <a href="/wiki/Lymphoid_organs" class="mw-redirect" title="Lymphoid organs">lymphoid organs</a>, while changes in S1P levels can influence immune cell migration and positioning in lymphoid and non-lymphoid tissues during inflammation or immune surveillance.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p><p>S1PR1, primarily located on the cell membrane of most lymphocytes, binds to the abundant ligand S1P in the bloodstream to promote lymphocyte egress from lymphoid organs, allowing them to travel to affected tissues. S1PR1 is responsive to the S1P gradient between the lymphoid tissues (low S1P) and the <a href="/wiki/Lymph" title="Lymph">lymph</a> (high S1P), facilitating T cell movement through the endothelial barrier.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> However, upon T cell activation in lymphoid organs via cytokine and <a href="/wiki/T-cell_receptor" title="T-cell receptor">T-cell receptor</a> signaling, the protein Cluster of Differentiation 69 (<a href="/wiki/CD69" title="CD69">CD69</a>) is expressed and forms a complex with S1PR1. This interaction, involving CD69 transmembrane domain and the helix-4 of S1PR1, leads to S1PR1 internalization and degradation, preventing S1P binding and downstream signaling.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> This mechanism results in the temporary retention of lymphocytes within the lymph organs, enhancing the chances of successful lymphocyte activation, especially if the initial activation signal was weak. Upon antigen encounter or <a href="/wiki/Interferon_type_I" title="Interferon type I">type I interferon</a> stimulation in lymphoid organs, S1PR1 expression is decreased through CD69 interaction and downregulation of the transcription factor <a href="/wiki/Kruppel-like_factors" title="Kruppel-like factors">Kruppel‑like factor</a> 2.<sup id="cite_ref-jr_16-0" class="reference"><a href="#cite_note-jr-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> Effector T cells eventually re-express S1PR1 to exit the lymph node and enter peripheral tissues. However, increased S1P levels in lymphoid tissues, due to inhibition of S1P lyase, inflammation, or synthetic S1PR1 ligands like <a href="/wiki/Fingolimod" title="Fingolimod">FTY720</a>, can block T cell egress by dissipating the S1P gradient, inducing S1PR1 internalization, and enhancing <a href="/wiki/Endothelial_junctional_molecule" class="mw-redirect" title="Endothelial junctional molecule">endothelial junctional contacts</a> to close egress ports.<sup id="cite_ref-jr_16-1" class="reference"><a href="#cite_note-jr-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Immune_cell_regulation">Immune cell regulation</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=5" title="Edit section: Immune cell regulation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>S1PR1 activation is heavily involved in <a href="/wiki/White_blood_cell" title="White blood cell">immune cell</a> regulation and development. Sphingosine-1-phosphate receptor 1 is also involved in immune-modulation and directly involved in suppression of innate immune responses from T cells.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> Depending on the G protein coupled with the S1PR1, diverse cellular effects are achieved: <a href="/wiki/Gi_alpha_subunit" title="Gi alpha subunit">G<sub>αi</sub></a> and G<sub>αo</sub> modulate cellular survival, <a href="/wiki/Cell_proliferation" title="Cell proliferation">proliferation</a> and <a href="/wiki/Cell_motility" class="mw-redirect" title="Cell motility">motility</a>; G<sub>α12</sub> and G<sub>α13</sub> modulate <a href="/wiki/Cytoskeletal" class="mw-redirect" title="Cytoskeletal">cytoskeletal</a> remodeling and cell-shape changes and <a href="/wiki/Gq_alpha_subunit" title="Gq alpha subunit">G<sub>αq</sub></a> modulates several cellular effector functions.<sup id="cite_ref-Rosen_2005_12-1" class="reference"><a href="#cite_note-Rosen_2005-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> All the intracellular functions occur via the interaction with Gαi and Gαo: these two proteins recruit other proteins for downstream amplification of the signal.<sup id="cite_ref-Rosen_2005_12-2" class="reference"><a href="#cite_note-Rosen_2005-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> The main downstream effector functions of S1P-S1PR1 system are as follows: </p> <ol><li>The <a href="/wiki/Phosphatidylinositol_3-kinase" class="mw-redirect" title="Phosphatidylinositol 3-kinase">phosphatidylinositol 3-kinase</a> (PI3K) and the lipid dependent <a href="/wiki/Protein_kinase_B" title="Protein kinase B">protein kinase B</a> (PKB) signaling pathway increases the survival of <a href="/wiki/Lymphocyte" title="Lymphocyte">lymphocytes</a> and other immune cells by inhibiting <a href="/wiki/Apoptosis" title="Apoptosis">apoptosis</a>.</li> <li><a href="/wiki/Phosphoinositide_3-kinase" title="Phosphoinositide 3-kinase">Phosphoinositide 3-kinase</a> (PI3K) and the <a href="/wiki/GTPase" title="GTPase">GTPase</a> <a href="/wiki/Rac_(GTPase)" title="Rac (GTPase)">RAC</a> are responsible of the lymphocytes migration and their interactions with other cells or with connective-tissue surfaces.<sup id="cite_ref-Rosen_2005_12-3" class="reference"><a href="#cite_note-Rosen_2005-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> S1PR1-deficient thymocytes do not emigrate from the thymus, resulting in an increased numbers of mature thymocytes in the thymus and in medullary hyperplasia, and few S1PR1-deficient T cells can be detected in the blood, <a href="/wiki/Lymph_node" title="Lymph node">lymph nodes</a>, <a href="/wiki/Spleen" title="Spleen">spleen</a> or non-lymphoid organs in these mouse models.<sup id="cite_ref-Allende_2004_9-1" class="reference"><a href="#cite_note-Allende_2004-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Matloubian_2004_10-1" class="reference"><a href="#cite_note-Matloubian_2004-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> The proliferation of immune cells is due to S1P-mediated signals via the GTPase RAS and extracellular-signal regulated kinase (ERK). IV) The Phospholipase C (PLC)-induced increases in intracellular calcium levels allow the secretion of cytokines and other immune mediators.<sup id="cite_ref-Rosen_2005_12-4" class="reference"><a href="#cite_note-Rosen_2005-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></li></ol> <div class="mw-heading mw-heading3"><h3 id="Vasculogenesis">Vasculogenesis</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=6" title="Edit section: Vasculogenesis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>S1PR1 is one of the main receptors responsible for <a href="/wiki/Blood_vessel" title="Blood vessel">vascular</a> growth and development, at least during <a href="/wiki/Embryogenesis" class="mw-redirect" title="Embryogenesis">embryogenesis</a>.<sup id="cite_ref-Chae_2004_18-0" class="reference"><a href="#cite_note-Chae_2004-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> In vascular endothelial cells the binding of S1P to S1PR1 induces migration, proliferation, cell survival and morphogenesis into capillary-like structures.<sup id="cite_ref-pmid10555146_19-0" class="reference"><a href="#cite_note-pmid10555146-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> Moreover, the binding of S1P to S1PR1 is implicated in the formation of cell-cell <a href="/wiki/Adherens_junction" title="Adherens junction">adherens junctions</a>, therefore inhibiting <a href="/wiki/Paracellular_transport" title="Paracellular transport">paracellular permeability</a> of <a href="/wiki/Solutes" class="mw-redirect" title="Solutes">solutes</a> and <a href="/wiki/Macromolecule" title="Macromolecule">macromolecules</a>.<sup id="cite_ref-Sanchez_2003_20-0" class="reference"><a href="#cite_note-Sanchez_2003-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Garcia_2001_21-0" class="reference"><a href="#cite_note-Garcia_2001-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> It was also shown in vivo that S1P synergizes with <a href="/wiki/Angiogenic" class="mw-redirect" title="Angiogenic">angiogenic</a> factors such as <a href="/wiki/Basic_fibroblast_growth_factor" class="mw-redirect" title="Basic fibroblast growth factor">FGF-2</a> and <a href="/wiki/Vascular_endothelial_growth_factor" title="Vascular endothelial growth factor">VEGF</a> in inducing angiogenesis and vascular maturation through S1PR1.<sup id="cite_ref-Garcia_2001_21-1" class="reference"><a href="#cite_note-Garcia_2001-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> Liu et al. (2000) showed that S1PR1-<a href="/wiki/Knockout_mouse" title="Knockout mouse">KO mice</a> died during development due to a defect in vascular stabilization, suggesting that this receptor is essential for vascular development.<sup id="cite_ref-pmid11032855_22-0" class="reference"><a href="#cite_note-pmid11032855-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> In conclusion, several evidences confirm that S1P via S1PR1 is a potent regulator of vascular growth and development, at least during embryogenesis.<sup id="cite_ref-Chae_2004_18-1" class="reference"><a href="#cite_note-Chae_2004-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Clinical_significance">Clinical significance</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=7" title="Edit section: Clinical significance"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Cancer">Cancer</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=8" title="Edit section: Cancer"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>S1PR1 is involved in the motility of cancer cells upon stimulation by S1P. The signal pathway involves RAC-CDC42 and correlates with <a href="/wiki/ERK1" class="mw-redirect" title="ERK1">ERK1</a> and <a href="/wiki/ERK2" class="mw-redirect" title="ERK2">ERK2</a> activation. The RAC-CDC42 pathway leads to cell migration, whereas the <a href="/wiki/MAPK/ERK_pathway" title="MAPK/ERK pathway">ERK pathway</a> leads to proliferation and neovascularization<sup id="cite_ref-Pyne_2010_23-0" class="reference"><a href="#cite_note-Pyne_2010-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid15489955_24-0" class="reference"><a href="#cite_note-pmid15489955-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> demonstrated that S1PR1 is strongly induced in <a href="/wiki/Endothelial" class="mw-redirect" title="Endothelial">endothelial</a> cells during tumor angiogenesis and a <a href="/wiki/SiRNA" class="mw-redirect" title="SiRNA">siRNA</a> against S1PR1 was able to inhibit angiogenesis and tumor growth. S1PR1 is also involved in other types of cancer: <a href="/wiki/Fibrosarcoma" title="Fibrosarcoma">fibrosarcoma</a> cells migrate upon activation of S1PR1 by S1P via RAC1–CDC42 dependent pathway)<sup id="cite_ref-Fisher_2006_25-0" class="reference"><a href="#cite_note-Fisher_2006-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Nyalendo_2007_26-0" class="reference"><a href="#cite_note-Nyalendo_2007-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> and ovarian cancer cell invasion involves S1PR1 or S1PR3 and calcium mobilization.<sup id="cite_ref-Park_2007_27-0" class="reference"><a href="#cite_note-Park_2007-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Multiple_sclerosis">Multiple sclerosis</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=9" title="Edit section: Multiple sclerosis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>S1PR1 is involved in <a href="/wiki/Multiple_sclerosis" title="Multiple sclerosis">multiple sclerosis</a>. <a href="/wiki/Fingolimod" title="Fingolimod">Fingolimod</a>, a drug which internalizes the receptor, is approved as a disease modifying agent in Multiple sclerosis. There are other <a href="/wiki/Sphingosine-1-phosphate_receptor_modulator" title="Sphingosine-1-phosphate receptor modulator">Sphingosine-1-phosphate receptor modulators</a>. Van Doorn et al. (2010)<sup id="cite_ref-pmid20648639_28-0" class="reference"><a href="#cite_note-pmid20648639-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> observed a strong increase in S1PR1 (and S1PR3) expression in <a href="/wiki/Hypertrophic" class="mw-redirect" title="Hypertrophic">hypertrophic</a> <a href="/wiki/Astrocyte" title="Astrocyte">astrocytes</a> both in the active and inactive Multiple sclerosis lesions from patients compared to the unaffected patients. </p> <div class="mw-heading mw-heading2"><h2 id="Evolution">Evolution</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=10" title="Edit section: Evolution"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Paralogues_for_S1PR1_Gene[29]"><span id="Paralogues_for_S1PR1_Gene.5B29.5D"></span><a href="/wiki/Sequence_homology" title="Sequence homology">Paralogues</a> for S1PR1 <a href="/wiki/Gene" title="Gene">Gene</a><sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=11" title="Edit section: Paralogues for S1PR1 Gene[29]"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/S1PR3" title="S1PR3">S1PR3</a></li> <li><a href="/wiki/S1PR5" title="S1PR5">S1PR5</a></li> <li><a href="/wiki/S1PR2" title="S1PR2">S1PR2</a></li> <li><a href="/wiki/S1PR4" title="S1PR4">S1PR4</a></li> <li><a href="/wiki/LPAR1" title="LPAR1">LPAR1</a></li> <li><a href="/wiki/LPAR2" title="LPAR2">LPAR2</a></li> <li><a href="/wiki/LPAR3" title="LPAR3">LPAR3</a></li> <li><a href="/wiki/Cannabinoid_receptor_1" title="Cannabinoid receptor 1">CNR1</a></li> <li><a href="/wiki/GPR6" title="GPR6">GPR6</a></li> <li><a href="/wiki/GPR12" title="GPR12">GPR12</a></li> <li><a href="/wiki/Melanocortin_4_receptor" title="Melanocortin 4 receptor">MC4R</a></li> <li><a href="/wiki/Melanocortin_5_receptor" title="Melanocortin 5 receptor">MC5R</a></li> <li><a href="/wiki/Cannabinoid_receptor_2" title="Cannabinoid receptor 2">CNR2</a></li> <li><a href="/wiki/Melanocortin_3_receptor" title="Melanocortin 3 receptor">MC3R</a></li> <li><a href="/wiki/GPR3" title="GPR3">GPR3</a></li> <li><a href="/wiki/ACTH_receptor" title="ACTH receptor">MC2R</a></li> <li><a href="/wiki/Melanocortin_1_receptor" title="Melanocortin 1 receptor">MC1R</a></li> <li><a href="/wiki/GPR119" title="GPR119">GPR119</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Interactions">Interactions</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=12" title="Edit section: Interactions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>S1PR1 has been shown to <a href="/wiki/Protein%E2%80%93protein_interaction" title="Protein–protein interaction">interact</a> with <a href="/wiki/5-HT1A_receptor" title="5-HT1A receptor">5-HT1A receptor</a>,<sup id="cite_ref-pmid11854302_30-0" class="reference"><a href="#cite_note-pmid11854302-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> <a href="/wiki/GNAI1" title="GNAI1">GNAI1</a>,<sup id="cite_ref-pmid8626678_31-0" class="reference"><a href="#cite_note-pmid8626678-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/GNAI3" title="GNAI3">GNAI3</a>.<sup id="cite_ref-pmid8626678_31-1" class="reference"><a href="#cite_note-pmid8626678-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=S1PR1&action=edit&section=13" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Lysophospholipid_receptor" title="Lysophospholipid receptor">Lysophospholipid receptor</a></li></ul> <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=S1PR1&action=edit&section=14" 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" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-refGRCh38Ensembl-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-refGRCh38Ensembl_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-refGRCh38Ensembl_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-refGRCh38Ensembl_1-2"><sup><i><b>c</b></i></sup></a></span> <span 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(May 2002). <a rel="nofollow" class="external text" href="https://doi.org/10.1074%2Fjbc.M201539200">"Oligomerization of G-protein-coupled receptors shown by selective co-immunoprecipitation"</a>. <i>The Journal of Biological Chemistry</i>. <b>277</b> (18): <span class="nowrap">15482–</span>15485. <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/10.1074%2Fjbc.M201539200">10.1074/jbc.M201539200</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/11854302">11854302</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Journal+of+Biological+Chemistry&rft.atitle=Oligomerization+of+G-protein-coupled+receptors+shown+by+selective+co-immunoprecipitation&rft.volume=277&rft.issue=18&rft.pages=%3Cspan+class%3D%22nowrap%22%3E15482-%3C%2Fspan%3E15485&rft.date=2002-05&rft_id=info%3Adoi%2F10.1074%2Fjbc.M201539200&rft_id=info%3Apmid%2F11854302&rft.aulast=Salim&rft.aufirst=K&rft.au=Fenton%2C+T&rft.au=Bacha%2C+J&rft.au=Urien-Rodriguez%2C+H&rft.au=Bonnert%2C+T&rft.au=Skynner%2C+HA&rft.au=Watts%2C+E&rft.au=Kerby%2C+J&rft.au=Heald%2C+A&rft.au=Beer%2C+M&rft.au=McAllister%2C+G&rft.au=Guest%2C+PC&rft_id=https%3A%2F%2Fdoi.org%2F10.1074%252Fjbc.M201539200&rfr_id=info%3Asid%2Fen.wikipedia.org%3AS1PR1" class="Z3988"></span></span> </li> <li id="cite_note-pmid8626678-31"><span class="mw-cite-backlink">^ <a href="#cite_ref-pmid8626678_31-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-pmid8626678_31-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFLeeEvansHla1996" class="citation journal cs1">Lee MJ, Evans M, Hla T (May 1996). <a rel="nofollow" class="external text" href="https://doi.org/10.1074%2Fjbc.271.19.11272">"The inducible G protein-coupled receptor edg-1 signals via the G(i)/mitogen-activated protein kinase pathway"</a>. <i>The Journal of Biological Chemistry</i>. <b>271</b> (19): <span class="nowrap">11272–</span>11279. <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/10.1074%2Fjbc.271.19.11272">10.1074/jbc.271.19.11272</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/8626678">8626678</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Journal+of+Biological+Chemistry&rft.atitle=The+inducible+G+protein-coupled+receptor+edg-1+signals+via+the+G%28i%29%2Fmitogen-activated+protein+kinase+pathway&rft.volume=271&rft.issue=19&rft.pages=%3Cspan+class%3D%22nowrap%22%3E11272-%3C%2Fspan%3E11279&rft.date=1996-05&rft_id=info%3Adoi%2F10.1074%2Fjbc.271.19.11272&rft_id=info%3Apmid%2F8626678&rft.aulast=Lee&rft.aufirst=MJ&rft.au=Evans%2C+M&rft.au=Hla%2C+T&rft_id=https%3A%2F%2Fdoi.org%2F10.1074%252Fjbc.271.19.11272&rfr_id=info%3Asid%2Fen.wikipedia.org%3AS1PR1" 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=S1PR1&action=edit&section=15" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20150107132007/http://www.iuphar-db.org/GPCR/ReceptorDisplayForward?receptorID=2993">"Lysophospholipid Receptors: S<sub>1</sub>P<sub>1</sub>"</a>. <i>IUPHAR Database of Receptors and Ion Channels</i>. International Union of Basic and Clinical Pharmacology. Archived from <a rel="nofollow" class="external text" href="http://www.iuphar-db.org/GPCR/ReceptorDisplayForward?receptorID=2993">the original</a> on 7 January 2015<span class="reference-accessdate">. Retrieved <span class="nowrap">5 December</span> 2008</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=IUPHAR+Database+of+Receptors+and+Ion+Channels&rft.atitle=Lysophospholipid+Receptors%3A+S%3Csub%3E1%3C%2Fsub%3EP%3Csub%3E1%3C%2Fsub%3E&rft_id=http%3A%2F%2Fwww.iuphar-db.org%2FGPCR%2FReceptorDisplayForward%3FreceptorID%3D2993&rfr_id=info%3Asid%2Fen.wikipedia.org%3AS1PR1" class="Z3988"></span></li> <li><a rel="nofollow" class="external text" href="https://meshb.nlm.nih.gov/record/ui?name=Lysophospholipid+receptors">Lysophospholipid+receptors</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></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 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navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:G_protein-coupled_receptors" title="Template:G protein-coupled receptors"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:G_protein-coupled_receptors" title="Template talk:G protein-coupled receptors"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:G_protein-coupled_receptors" title="Special:EditPage/Template:G protein-coupled receptors"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Cell_surface_receptor:_G_protein-coupled_receptors58" style="font-size:114%;margin:0 4em"><a href="/wiki/Cell_surface_receptor" title="Cell surface receptor">Cell surface receptor</a>: <a href="/wiki/G_protein-coupled_receptor" title="G protein-coupled receptor">G protein-coupled receptors</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Class_A:_Rhodopsin-like58" style="font-size:114%;margin:0 4em"><a href="/wiki/Rhodopsin-like_receptors" title="Rhodopsin-like receptors">Class A</a>: <a href="/wiki/Rhodopsin" title="Rhodopsin">Rhodopsin</a>-like</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;"><a href="/wiki/Neurotransmitter_receptor" title="Neurotransmitter receptor">Neurotransmitter</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;"><a href="/wiki/Adrenergic_receptor" title="Adrenergic receptor">Adrenergic</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alpha-1_adrenergic_receptor" title="Alpha-1 adrenergic receptor">α1</a> (<a href="/wiki/Alpha-1A_adrenergic_receptor" title="Alpha-1A adrenergic receptor">A</a></li> <li><a href="/wiki/Alpha-1B_adrenergic_receptor" title="Alpha-1B adrenergic receptor">B</a></li> <li><a href="/wiki/Alpha-1D_adrenergic_receptor" title="Alpha-1D adrenergic receptor">D</a>)</li> <li><a href="/wiki/Alpha-2_adrenergic_receptor" title="Alpha-2 adrenergic receptor">α2</a> (<a href="/wiki/Alpha-2A_adrenergic_receptor" title="Alpha-2A adrenergic receptor">A</a></li> <li><a href="/wiki/Alpha-2B_adrenergic_receptor" title="Alpha-2B adrenergic receptor">B</a></li> <li><a href="/wiki/Alpha-2C_adrenergic_receptor" title="Alpha-2C adrenergic receptor">C</a>)</li> <li><a href="/wiki/Beta-1_adrenergic_receptor" title="Beta-1 adrenergic receptor">β1</a></li> <li><a href="/wiki/Beta-2_adrenergic_receptor" title="Beta-2 adrenergic receptor">β2</a></li> <li><a href="/wiki/Beta-3_adrenergic_receptor" title="Beta-3 adrenergic receptor">β3</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;"><a href="/wiki/Purinergic_receptor" title="Purinergic receptor">Purinergic</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Adenosine_receptor" title="Adenosine receptor">Adenosine</a> (<a href="/wiki/Adenosine_A1_receptor" title="Adenosine A1 receptor">A1</a></li> <li><a href="/wiki/Adenosine_A2A_receptor" title="Adenosine A2A receptor">A2A</a></li> <li><a href="/wiki/Adenosine_A2B_receptor" title="Adenosine A2B receptor">A2B</a></li> <li><a href="/wiki/Adenosine_A3_receptor" title="Adenosine A3 receptor">A3</a>)</li> <li><a href="/wiki/P2Y_receptor" title="P2Y receptor">P2Y</a> (<a href="/wiki/P2RY1" title="P2RY1">1</a></li> <li><a href="/wiki/P2RY2" title="P2RY2">2</a></li> <li><a href="/wiki/P2RY4" title="P2RY4">4</a></li> <li><a href="/wiki/LPAR6" title="LPAR6">5</a></li> <li><a href="/wiki/P2RY6" title="P2RY6">6</a></li> <li><a href="/wiki/P2RY8" title="P2RY8">8</a></li> <li><a href="/wiki/GPR23" class="mw-redirect" title="GPR23">9</a></li> <li><a href="/wiki/P2RY10" title="P2RY10">10</a></li> <li><a href="/wiki/P2RY11" title="P2RY11">11</a></li> <li><a href="/wiki/P2Y12" title="P2Y12">12</a></li> <li><a href="/wiki/P2RY13" title="P2RY13">13</a></li> <li><a href="/wiki/P2RY14" title="P2RY14">14</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;"><a href="/wiki/5-HT_receptor" title="5-HT receptor">Serotonin</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i>(all but <a href="/wiki/5-HT3_receptor" title="5-HT3 receptor">5-HT3</a>)</i> <a href="/wiki/5-HT1_receptor" title="5-HT1 receptor">5-HT1</a> (<a href="/wiki/5-HT1A_receptor" title="5-HT1A receptor">A</a></li> <li><a href="/wiki/5-HT1B_receptor" title="5-HT1B receptor">B</a></li> <li><a href="/wiki/5-HT1D_receptor" title="5-HT1D receptor">D</a></li> <li><a href="/wiki/5-HT1E_receptor" title="5-HT1E receptor">E</a></li> <li><a href="/wiki/5-HT1F_receptor" title="5-HT1F receptor">F</a>)</li> <li><a href="/wiki/5-HT2_receptor" title="5-HT2 receptor">5-HT2</a> (<a href="/wiki/5-HT2A_receptor" title="5-HT2A receptor">A</a></li> <li><a href="/wiki/5-HT2B_receptor" title="5-HT2B receptor">B</a></li> <li><a href="/wiki/5-HT2C_receptor" title="5-HT2C receptor">C</a>)</li> <li><i>5-HT</i> (<a href="/wiki/5-HT4_receptor" title="5-HT4 receptor">4</a></li> <li><a href="/wiki/5-HT5A_receptor" title="5-HT5A receptor">5A</a></li> <li><a href="/wiki/5-HT6_receptor" title="5-HT6 receptor">6</a></li> <li><a href="/wiki/5-HT7_receptor" title="5-HT7 receptor">7</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Muscarinic_acetylcholine_receptor" title="Muscarinic acetylcholine receptor">Acetylcholine</a> (<a href="/wiki/Muscarinic_acetylcholine_receptor_M1" title="Muscarinic acetylcholine receptor M1">M1</a></li> <li><a href="/wiki/Muscarinic_acetylcholine_receptor_M2" title="Muscarinic acetylcholine receptor M2">M2</a></li> <li><a href="/wiki/Muscarinic_acetylcholine_receptor_M3" title="Muscarinic acetylcholine receptor M3">M3</a></li> <li><a href="/wiki/Muscarinic_acetylcholine_receptor_M4" title="Muscarinic acetylcholine receptor M4">M4</a></li> <li><a href="/wiki/Muscarinic_acetylcholine_receptor_M5" title="Muscarinic acetylcholine receptor M5">M5</a>)</li> <li><a href="/wiki/Dopamine_receptor" title="Dopamine receptor">Dopamine</a> <ul><li><a href="/wiki/Dopamine_receptor_D1" title="Dopamine receptor D1">D1</a></li> <li><a href="/wiki/Dopamine_receptor_D2" title="Dopamine receptor D2">D2</a></li> <li><a href="/wiki/Dopamine_receptor_D3" title="Dopamine receptor D3">D3</a></li> <li><a href="/wiki/Dopamine_receptor_D4" title="Dopamine receptor D4">D4</a></li> <li><a href="/wiki/Dopamine_receptor_D5" title="Dopamine receptor D5">D5</a></li></ul></li> <li><a href="/wiki/GHB_receptor" title="GHB receptor">GHB receptor</a></li> <li><a href="/wiki/Histamine_receptor" title="Histamine receptor">Histamine</a> <ul><li><a href="/wiki/Histamine_H1_receptor" title="Histamine H1 receptor">H1</a></li> <li><a href="/wiki/Histamine_H2_receptor" title="Histamine H2 receptor">H2</a></li> <li><a href="/wiki/Histamine_H3_receptor" title="Histamine H3 receptor">H3</a></li> <li><a href="/wiki/Histamine_H4_receptor" title="Histamine H4 receptor">H4</a></li></ul></li> <li><a href="/wiki/Melatonin_receptor" title="Melatonin receptor">Melatonin</a> (<a href="/wiki/Melatonin_receptor_1A" title="Melatonin receptor 1A">1A</a></li> <li><a href="/wiki/Melatonin_receptor_1B" title="Melatonin receptor 1B">1B</a></li> <li><a href="/wiki/Melatonin_receptor_1C" title="Melatonin receptor 1C">1C</a>)</li> <li><a href="/wiki/Trace_amine-associated_receptor" title="Trace amine-associated receptor">TAAR</a> (<a href="/wiki/TAAR1" title="TAAR1">1</a></li> <li><a href="/wiki/TAAR2" title="TAAR2">2</a></li> <li><a href="/wiki/TAAR5" title="TAAR5">5</a></li> <li><a href="/wiki/TAAR6" title="TAAR6">6</a></li> <li><a href="/wiki/TAAR8" title="TAAR8">8</a></li> <li><a href="/wiki/TAAR9" title="TAAR9">9</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;">Metabolites and<br />signaling molecules</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;"><a href="/wiki/Eicosanoid_receptor" title="Eicosanoid receptor">Eicosanoid</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i>CysLT</i> (<a href="/wiki/Cysteinyl_leukotriene_receptor_1" title="Cysteinyl leukotriene receptor 1">1</a></li> <li><a href="/wiki/Cysteinyl_leukotriene_receptor_2" title="Cysteinyl leukotriene receptor 2">2</a>)</li> <li><a href="/wiki/Leukotriene_B4" title="Leukotriene B4">LTB4</a> <ul><li><a href="/wiki/Leukotriene_B4_receptor" title="Leukotriene B4 receptor">1</a></li> <li><a href="/wiki/Leukotriene_B4_receptor_2" title="Leukotriene B4 receptor 2">2</a></li></ul></li> <li><a href="/wiki/Formyl_peptide_receptor_2" title="Formyl peptide receptor 2"> FPRL1</a></li> <li><a href="/wiki/Oxoeicosanoid_receptor_1" title="Oxoeicosanoid receptor 1">OXE</a></li> <li><a href="/wiki/Prostaglandin_receptor" title="Prostaglandin receptor">Prostaglandin</a> <ul><li><i>DP</i> (<a href="/wiki/Prostaglandin_D2_receptor" title="Prostaglandin D2 receptor">1</a></li> <li><a href="/wiki/GPR44" class="mw-redirect" title="GPR44">2</a>), <i>EP</i> (<a href="/wiki/EP1_receptor" class="mw-redirect" title="EP1 receptor">1</a></li> <li><a href="/wiki/Prostaglandin_E2_receptor" title="Prostaglandin E2 receptor">2</a></li> <li><a href="/wiki/Prostaglandin_E_receptor_3" class="mw-redirect" title="Prostaglandin E receptor 3">3</a></li> <li><a href="/wiki/EP4_receptor" class="mw-redirect" title="EP4 receptor">4</a>), <a href="/wiki/Prostaglandin_F_receptor" title="Prostaglandin F receptor">FP</a></li></ul></li> <li><a href="/wiki/Prostacyclin_receptor" title="Prostacyclin receptor">Prostacyclin</a></li> <li><a href="/wiki/Thromboxane_receptor" title="Thromboxane receptor">Thromboxane</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/G_protein-coupled_bile_acid_receptor" title="G protein-coupled bile acid receptor">Bile acid</a></li> <li><a href="/wiki/Cannabinoid_receptor" title="Cannabinoid receptor">Cannabinoid</a> (<a href="/wiki/Cannabinoid_receptor_type_1" class="mw-redirect" title="Cannabinoid receptor type 1">CB1</a></li> <li><a href="/wiki/Cannabinoid_receptor_type_2" class="mw-redirect" title="Cannabinoid receptor type 2">CB2</a>, <i>GPR</i> (<a href="/wiki/GPR18" class="mw-redirect" title="GPR18">18</a></li> <li><a href="/wiki/GPR55" title="GPR55">55</a></li> <li><a href="/wiki/GPR119" title="GPR119">119</a>))</li> <li><a href="/wiki/GPR183" title="GPR183">EBI2</a></li> <li><a href="/wiki/GPER" title="GPER">Estrogen</a></li> <li><a href="/wiki/Free_fatty_acid_receptor" title="Free fatty acid receptor">Free fatty acid</a> (<a href="/wiki/Free_fatty_acid_receptor_1" title="Free fatty acid receptor 1">1</a></li> <li><a href="/wiki/Free_fatty_acid_receptor_2" title="Free fatty acid receptor 2">2</a></li> <li><a href="/wiki/Free_fatty_acid_receptor_3" title="Free fatty acid receptor 3">3</a></li> <li><a href="/wiki/GPR42" title="GPR42">4</a>)</li> <li><a href="/wiki/Hydroxycarboxylic_acid_receptor" title="Hydroxycarboxylic acid receptor">Hydroxycarboxylic acids</a> <ul><li><a href="/wiki/Hydroxycarboxylic_acid_receptor_1" title="Hydroxycarboxylic acid receptor 1">1</a></li> <li><a href="/wiki/Hydroxycarboxylic_acid_receptor_2" title="Hydroxycarboxylic acid receptor 2">2</a></li> <li><a href="/wiki/Hydroxycarboxylic_acid_receptor_3" title="Hydroxycarboxylic acid receptor 3">3</a></li></ul></li> <li><a href="/wiki/Lysophosphatidic_acid" title="Lysophosphatidic acid">Lysophosphatidic acid</a> (<a href="/wiki/LPAR1" title="LPAR1">1</a></li> <li><a href="/wiki/LPAR2" title="LPAR2">2</a></li> <li><a href="/wiki/LPAR3" title="LPAR3">3</a></li> <li><a href="/wiki/LPAR4" title="LPAR4">4</a></li> <li><a href="/wiki/LPAR5" title="LPAR5">5</a></li> <li><a href="/wiki/LPAR6" title="LPAR6">6</a>)</li> <li><a href="/wiki/Lysophospholipid_receptor" title="Lysophospholipid receptor">Lysophospholipid</a> (<a class="mw-selflink selflink">1</a></li> <li><a href="/wiki/LPAR1" title="LPAR1">2</a></li> <li><a href="/wiki/S1PR3" title="S1PR3">3</a></li> <li><a href="/wiki/LPAR2" title="LPAR2">4</a></li> <li><a href="/wiki/S1PR2" title="S1PR2">5</a></li> <li><a href="/wiki/S1PR4" title="S1PR4">6</a></li> <li><a href="/wiki/LPAR3" title="LPAR3">7</a></li> <li><a href="/wiki/S1PR5" title="S1PR5">8</a>)</li> <li><a href="/wiki/OXGR1" title="OXGR1">Oxoglutarate</a></li> <li><a href="/wiki/Platelet-activating_factor_receptor" title="Platelet-activating factor receptor">PAF</a></li> <li><a href="/wiki/Sphingosine-1-phosphate" title="Sphingosine-1-phosphate">Sphingosine-1-phosphate</a> (<a class="mw-selflink selflink">1</a></li> <li><a href="/wiki/S1PR2" title="S1PR2">2</a></li> <li><a href="/wiki/S1PR3" title="S1PR3">3</a></li> <li><a href="/wiki/S1PR4" title="S1PR4">4</a></li> <li><a href="/wiki/S1PR5" title="S1PR5">5</a>)</li> <li><a href="/wiki/SUCNR1" title="SUCNR1">Succinate</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;">Peptide</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;"><a href="/wiki/GPCR_neuropeptide_receptor" title="GPCR neuropeptide receptor">Neuropeptide</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Neuropeptide_B/W_receptor" title="Neuropeptide B/W receptor">B/W</a> (<a href="/wiki/Neuropeptides_B/W_receptor_1" title="Neuropeptides B/W receptor 1">1</a></li> <li><a href="/wiki/Neuropeptides_B/W_receptor_2" title="Neuropeptides B/W receptor 2">2</a>)</li> <li><a href="/wiki/Neuropeptide_FF_receptor" title="Neuropeptide FF receptor">FF</a> (<a href="/wiki/Neuropeptide_FF_receptor_1" title="Neuropeptide FF receptor 1">1</a></li> <li><a href="/wiki/Neuropeptide_FF_receptor_2" title="Neuropeptide FF receptor 2">2</a>)</li> <li><a href="/wiki/Neuropeptide_S_receptor" title="Neuropeptide S receptor">S</a></li> <li><a href="/wiki/Neuropeptide_Y_receptor" title="Neuropeptide Y receptor">Y</a> (<a href="/wiki/Neuropeptide_Y_receptor_Y1" title="Neuropeptide Y receptor Y1">1</a></li> <li><a href="/wiki/Neuropeptide_Y_receptor_Y2" title="Neuropeptide Y receptor Y2">2</a></li> <li><a href="/wiki/Pancreatic_polypeptide_receptor_1" title="Pancreatic polypeptide receptor 1">4</a></li> <li><a href="/wiki/Neuropeptide_Y_receptor_Y5" title="Neuropeptide Y receptor Y5">5</a>)</li> <li><i>Neuromedin</i> (<a href="/wiki/Neuromedin_B_receptor" title="Neuromedin B receptor">B</a></li> <li><a href="/wiki/Neuromedin_U_receptor" title="Neuromedin U receptor">U</a> (<a href="/wiki/Neuromedin_U_receptor_1" title="Neuromedin U receptor 1">1</a></li> <li><a href="/wiki/Neuromedin_U_receptor_2" title="Neuromedin U receptor 2">2</a>))</li> <li><a href="/wiki/Neurotensin_receptor" title="Neurotensin receptor">Neurotensin</a> (<a href="/wiki/Neurotensin_receptor_1" title="Neurotensin receptor 1">1</a></li> <li><a href="/wiki/Neurotensin_receptor_2" title="Neurotensin receptor 2">2</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anaphylatoxin_receptors" title="Anaphylatoxin receptors">Anaphylatoxin</a> (<a href="/wiki/C3a_receptor" title="C3a receptor">C3a</a></li> <li>C5a (<a href="/wiki/C5a_receptor" title="C5a receptor">1</a></li> <li><a href="/wiki/C5AR2" title="C5AR2">2</a>))</li> <li><a href="/wiki/Angiotensin_receptor" class="mw-redirect" title="Angiotensin receptor">Angiotensin</a> (<a href="/wiki/Angiotensin_II_receptor_type_1" title="Angiotensin II receptor type 1">1</a></li> <li><a href="/wiki/Angiotensin_II_receptor_type_2" title="Angiotensin II receptor type 2">2</a>)</li> <li><a href="/wiki/Apelin_receptor" title="Apelin receptor">Apelin</a></li> <li><a href="/wiki/Bombesin_receptor" title="Bombesin receptor">Bombesin</a> <ul><li><a href="/wiki/Bombesin-like_receptor_3" title="Bombesin-like receptor 3">BRS3</a></li> <li><a href="/wiki/Gastrin-releasing_peptide_receptor" title="Gastrin-releasing peptide receptor">GRPR</a></li> <li><a href="/wiki/Neuromedin_B_receptor" title="Neuromedin B receptor">NMBR</a>)</li> <li><a href="/wiki/Bradykinin_receptor" title="Bradykinin receptor">Bradykinin</a> (<a href="/wiki/Bradykinin_receptor_B1" title="Bradykinin receptor B1">B1</a></li> <li><a href="/wiki/Bradykinin_receptor_B2" title="Bradykinin receptor B2">B2</a>)</li></ul></li> <li><a href="/wiki/Chemokine_receptor" title="Chemokine receptor">Chemokine</a></li> <li><a href="/wiki/Cholecystokinin_receptor" title="Cholecystokinin receptor">Cholecystokinin</a> (<a href="/wiki/Cholecystokinin_A_receptor" title="Cholecystokinin A receptor">A</a></li> <li><a href="/wiki/Cholecystokinin_B_receptor" title="Cholecystokinin B receptor">B</a>)</li> <li><a href="/wiki/Endothelin_receptor" title="Endothelin receptor">Endothelin</a> <ul><li><a href="/wiki/Endothelin_A_receptor" title="Endothelin A receptor">A</a></li> <li><a href="/wiki/Endothelin_B_receptor" class="mw-redirect" title="Endothelin B receptor">B</a></li></ul></li> <li><a href="/wiki/Formyl_peptide_receptor" title="Formyl peptide receptor">Formyl peptide</a> (<a href="/wiki/Formyl_peptide_receptor_1" title="Formyl peptide receptor 1">1</a></li> <li><a href="/wiki/Formyl_peptide_receptor_2" title="Formyl peptide receptor 2">2</a></li> <li><a href="/wiki/Formyl_peptide_receptor_3" title="Formyl peptide receptor 3">3</a>)</li> <li><a href="/wiki/Follicle-stimulating_hormone_receptor" title="Follicle-stimulating hormone receptor">FSH</a></li> <li><a href="/wiki/Galanin_receptor" title="Galanin receptor">Galanin</a> (<a href="/wiki/Galanin_receptor_1" title="Galanin receptor 1">1</a></li> <li><a href="/wiki/Galanin_receptor_2" title="Galanin receptor 2">2</a></li> <li><a href="/wiki/Galanin_receptor_3" title="Galanin receptor 3">3</a>)</li> <li><a href="/wiki/Gonadotropin-releasing_hormone_receptor" title="Gonadotropin-releasing hormone receptor">Gonadotropin-releasing hormone</a> (<a href="/wiki/GNRHR" title="GNRHR">1</a></li> <li><a href="/wiki/GNRHR2" title="GNRHR2">2</a>)</li> <li><a href="/wiki/Growth_hormone_secretagogue_receptor" title="Growth hormone secretagogue receptor">Ghrelin</a></li> <li><a href="/wiki/KiSS1-derived_peptide_receptor" title="KiSS1-derived peptide receptor"> Kisspeptin</a></li> <li><a href="/wiki/Luteinizing_hormone/choriogonadotropin_receptor" title="Luteinizing hormone/choriogonadotropin receptor">Luteinizing hormone/choriogonadotropin</a></li> <li><a href="/wiki/MAS1_oncogene" title="MAS1 oncogene">MAS</a> (<a href="/wiki/MAS1" title="MAS1">1</a></li> <li><a href="/wiki/MAS1L" title="MAS1L">1L</a></li> <li><a href="/wiki/MRGPRD" title="MRGPRD">D</a></li> <li><a href="/wiki/MRGPRE" title="MRGPRE">E</a></li> <li><a href="/wiki/MRGPRF" title="MRGPRF">F</a></li> <li><a href="/wiki/MRGPRG" title="MRGPRG">G</a></li> <li><a href="/wiki/MRGPRX1" title="MRGPRX1">X1</a></li> <li><a href="/wiki/MRGPRX2" title="MRGPRX2">X2</a></li> <li><a href="/wiki/MRGPRX3" title="MRGPRX3">X3</a></li> <li><a href="/wiki/MRGPRX4" title="MRGPRX4">X4</a>)</li> <li><a href="/wiki/Melanocortin_receptor" title="Melanocortin receptor">Melanocortin</a> (<a href="/wiki/Melanocortin_1_receptor" title="Melanocortin 1 receptor">1</a></li> <li><a href="/wiki/ACTH_receptor" title="ACTH receptor">2</a></li> <li><a href="/wiki/Melanocortin_3_receptor" title="Melanocortin 3 receptor">3</a></li> <li><a href="/wiki/Melanocortin_4_receptor" title="Melanocortin 4 receptor">4</a></li> <li><a href="/wiki/Melanocortin_5_receptor" title="Melanocortin 5 receptor">5</a>)</li> <li><a href="/wiki/Melanin-concentrating_hormone_receptor" title="Melanin-concentrating hormone receptor">MCHR</a> (<a href="/wiki/Melanin-concentrating_hormone_receptor_1" title="Melanin-concentrating hormone receptor 1">1</a></li> <li><a href="/wiki/Melanin-concentrating_hormone_receptor_2" title="Melanin-concentrating hormone receptor 2">2</a>)</li> <li><a href="/wiki/Motilin_receptor" title="Motilin receptor">Motilin</a></li> <li><a href="/wiki/Opioid_receptor" title="Opioid receptor">Opioid</a> (<a href="/wiki/%CE%94-opioid_receptor" title="Δ-opioid receptor">Delta</a></li> <li><a href="/wiki/%CE%9A-opioid_receptor" title="Κ-opioid receptor">Kappa</a></li> <li><a href="/wiki/%CE%9C-opioid_receptor" title="Μ-opioid receptor">Mu</a></li> <li><a href="/wiki/Nociceptin_receptor" title="Nociceptin receptor">Nociceptin</a> & <a href="/wiki/OGFr" title="OGFr">Zeta</a>, but not <a href="/wiki/Sigma_receptor" title="Sigma receptor">Sigma</a>)</li> <li><a href="/wiki/Orexin_receptor" title="Orexin receptor">Orexin</a> (<a href="/wiki/Hypocretin_(orexin)_receptor_1" title="Hypocretin (orexin) receptor 1">1</a></li> <li><a href="/wiki/Hypocretin_(orexin)_receptor_2" title="Hypocretin (orexin) receptor 2">2</a>)</li> <li><a href="/wiki/Oxytocin_receptor" title="Oxytocin receptor">Oxytocin</a></li> <li><a href="/wiki/Prokineticin_receptor" title="Prokineticin receptor">Prokineticin</a> (<a href="/wiki/Prokineticin_receptor_1" title="Prokineticin receptor 1">1</a></li> <li><a href="/wiki/Prokineticin_receptor_2" title="Prokineticin receptor 2">2</a>)</li> <li><a href="/wiki/Prolactin-releasing_peptide_receptor" title="Prolactin-releasing peptide receptor">Prolactin-releasing peptide</a></li> <li><a href="/wiki/Relaxin_receptor" title="Relaxin receptor">Relaxin</a> (<a href="/wiki/Relaxin/insulin-like_family_peptide_receptor_1" title="Relaxin/insulin-like family peptide receptor 1">1</a></li> <li><a href="/wiki/Relaxin/insulin-like_family_peptide_receptor_2" title="Relaxin/insulin-like family peptide receptor 2">2</a></li> <li><a href="/wiki/Relaxin/insulin-like_family_peptide_receptor_3" title="Relaxin/insulin-like family peptide receptor 3">3</a></li> <li><a href="/wiki/Relaxin/insulin-like_family_peptide_receptor_4" title="Relaxin/insulin-like family peptide receptor 4">4</a>)</li> <li><a href="/wiki/Somatostatin_receptor" title="Somatostatin receptor">Somatostatin</a> (<a href="/wiki/Somatostatin_receptor_1" title="Somatostatin receptor 1">1</a></li> <li><a href="/wiki/Somatostatin_receptor_2" title="Somatostatin receptor 2">2</a></li> <li><a href="/wiki/Somatostatin_receptor_3" title="Somatostatin receptor 3">3</a></li> <li><a href="/wiki/Somatostatin_receptor_4" title="Somatostatin receptor 4">4</a></li> <li><a href="/wiki/Somatostatin_receptor_5" title="Somatostatin receptor 5">5</a>)</li> <li><a href="/wiki/Tachykinin_receptor" title="Tachykinin receptor">Tachykinin</a> (<a href="/wiki/Tachykinin_receptor_1" title="Tachykinin receptor 1">1</a></li> <li><a href="/wiki/Tachykinin_receptor_2" title="Tachykinin receptor 2">2</a></li> <li><a href="/wiki/Tachykinin_receptor_3" title="Tachykinin receptor 3">3</a>)</li> <li><a href="/wiki/Thyrotropin_receptor" title="Thyrotropin receptor">Thyrotropin</a></li> <li><a href="/wiki/Thyrotropin-releasing_hormone_receptor" title="Thyrotropin-releasing hormone receptor">Thyrotropin-releasing hormone</a></li> <li><a href="/wiki/Urotensin-II_receptor" title="Urotensin-II receptor">Urotensin-II</a></li> <li><a href="/wiki/Vasopressin_receptor" title="Vasopressin receptor">Vasopressin</a> (<a href="/wiki/Arginine_vasopressin_receptor_1A" class="mw-redirect" title="Arginine vasopressin receptor 1A">1A</a></li> <li><a href="/wiki/Arginine_vasopressin_receptor_1B" class="mw-redirect" title="Arginine vasopressin receptor 1B">1B</a></li> <li><a href="/wiki/Arginine_vasopressin_receptor_2" class="mw-redirect" title="Arginine vasopressin receptor 2">2</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;">Miscellaneous</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;"><a href="/wiki/Taste_receptor" title="Taste receptor">Taste</a>, bitter</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i>TAS2R</i> <ul><li><a href="/wiki/TAS2R1" title="TAS2R1">1</a></li> <li><a href="/wiki/TAS2R3" title="TAS2R3">3</a></li> <li><a href="/wiki/TAS2R4" title="TAS2R4">4</a></li> <li><a href="/wiki/TAS2R5" title="TAS2R5">5</a></li> <li><a href="/wiki/TAS2R7" title="TAS2R7">7</a></li> <li><a href="/wiki/TAS2R8" title="TAS2R8">8</a></li> <li><a href="/wiki/TAS2R9" title="TAS2R9">9</a></li> <li><a href="/wiki/TAS2R10" title="TAS2R10">10</a></li> <li><a href="/wiki/TAS2R13" title="TAS2R13">13</a></li> <li><a href="/wiki/TAS2R14" title="TAS2R14">14</a></li> <li><a href="/wiki/TAS2R16" title="TAS2R16">16</a></li> <li><a href="/wiki/TAS2R19" title="TAS2R19">19</a></li> <li><a href="/wiki/TAS2R20" title="TAS2R20">20</a></li> <li><a href="/wiki/TAS2R30" title="TAS2R30">30</a></li> <li><a href="/wiki/TAS2R31" title="TAS2R31">31</a></li> <li><a href="/wiki/TAS2R38" title="TAS2R38">38</a></li> <li><a href="/wiki/TAS2R39" title="TAS2R39">39</a></li> <li><a href="/wiki/TAS2R40" title="TAS2R40">40</a></li> <li><a href="/wiki/TAS2R41" title="TAS2R41">41</a></li> <li><a href="/wiki/TAS2R42" title="TAS2R42">42</a></li> <li><a href="/wiki/TAS2R43" title="TAS2R43">43</a></li> <li><a href="/wiki/TAS2R45" title="TAS2R45">45</a></li> <li><a href="/wiki/TAS2R46" title="TAS2R46">46</a></li> <li><a href="/wiki/TAS2R50" title="TAS2R50">50</a></li> <li><a href="/wiki/TAS2R60" title="TAS2R60">60</a></li></ul></li> <li><a href="/wiki/Vomeronasal_receptor" title="Vomeronasal receptor">Vomeronasal receptor</a> type 1</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;"><a href="/wiki/Orphan_receptor" title="Orphan receptor">Orphan</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i>GPR</i> (<a href="/wiki/GPR1" title="GPR1">1</a></li> <li><a href="/wiki/GPR3" title="GPR3">3</a></li> <li><a href="/wiki/GPR4" title="GPR4">4</a></li> <li><a href="/wiki/GPR6" title="GPR6">6</a></li> <li><a href="/wiki/GPR12" title="GPR12">12</a></li> <li><a href="/wiki/GPR15" title="GPR15">15</a></li> <li><a href="/wiki/GPR17" title="GPR17">17</a></li> <li><a href="/wiki/GPR18" class="mw-redirect" title="GPR18">18</a></li> <li><a href="/wiki/GPR19" title="GPR19">19</a></li> <li><a href="/wiki/GPR20" title="GPR20">20</a></li> <li><a href="/wiki/GPR21" title="GPR21">21</a></li> <li><a href="/wiki/GPR22" title="GPR22">22</a></li> <li><a href="/wiki/LPAR4" title="LPAR4">23</a></li> <li><a href="/wiki/GPR25" title="GPR25">25</a></li> <li><a href="/wiki/GPR26" title="GPR26">26</a></li> <li><a href="/wiki/GPR27" title="GPR27">27</a></li> <li><a href="/wiki/GPR31" title="GPR31">31</a></li> <li><a href="/wiki/GPR32" title="GPR32">32</a></li> <li><a href="/wiki/GPR33" title="GPR33">33</a></li> <li><a href="/wiki/GPR34" title="GPR34">34</a></li> <li><a href="/wiki/GPR35" title="GPR35">35</a></li> <li><a href="/wiki/GPR37" title="GPR37">37</a></li> <li><a href="/wiki/GPR39" title="GPR39">39</a></li> <li><a href="/wiki/GPR42" title="GPR42">42</a></li> <li><a href="/wiki/GPR44" class="mw-redirect" title="GPR44">44</a></li> <li><a href="/wiki/GPR45" title="GPR45">45</a></li> <li><a href="/wiki/GPR50" title="GPR50">50</a></li> <li><a href="/wiki/GPR52" title="GPR52">52</a></li> <li><a href="/wiki/GPR55" title="GPR55">55</a></li> <li><a href="/wiki/GPR61" title="GPR61">61</a></li> <li><a href="/wiki/GPR62" title="GPR62">62</a></li> <li><a href="/wiki/GPR63" title="GPR63">63</a></li> <li><a href="/wiki/GPR65" title="GPR65">65</a></li> <li><a href="/wiki/GPR68" title="GPR68">68</a></li> <li><a href="/wiki/GPR75" title="GPR75">75</a></li> <li><a href="/wiki/GPR78" title="GPR78">78</a></li> <li><a href="/wiki/GPR81" class="mw-redirect" title="GPR81">81</a></li> <li><a href="/wiki/GPR82" title="GPR82">82</a></li> <li><a href="/wiki/GPR83" title="GPR83">83</a></li> <li><a href="/wiki/GPR84" title="GPR84">84</a></li> <li><a href="/wiki/GPR85" title="GPR85">85</a></li> <li><a href="/wiki/GPR87" title="GPR87">87</a></li> <li><a href="/wiki/GPR88" title="GPR88">88</a></li> <li><a href="/wiki/LPAR5" title="LPAR5">92</a></li> <li><a href="/wiki/GPR101" title="GPR101">101</a></li> <li><a href="/wiki/Pyroglutamylated_RFamide_peptide_receptor" title="Pyroglutamylated RFamide peptide receptor">103</a></li> <li><a href="/wiki/Niacin_receptor_1" class="mw-redirect" title="Niacin receptor 1">109A</a></li> <li><a href="/wiki/Niacin_receptor_2" class="mw-redirect" title="Niacin receptor 2">109B</a></li> <li><a href="/wiki/GPR119" title="GPR119">119</a></li> <li><a href="/wiki/GPR120" class="mw-redirect" title="GPR120">120</a></li> <li><a href="/wiki/GPR132" title="GPR132">132</a></li> <li><a href="/wiki/GPR135" title="GPR135">135</a></li> <li><a href="/wiki/GPR137B" title="GPR137B">137B</a></li> <li><a href="/wiki/GPR139" title="GPR139">139</a></li> <li><a href="/wiki/GPR141" title="GPR141">141</a></li> <li><a href="/wiki/GPR142" title="GPR142">142</a></li> <li><a href="/wiki/GPR146" title="GPR146">146</a></li> <li><a href="/wiki/GPR148" title="GPR148">148</a></li> <li><a href="/wiki/GPR149" title="GPR149">149</a></li> <li><a href="/wiki/GPR150" title="GPR150">150</a></li> <li><a href="/wiki/GPR151" title="GPR151">151</a></li> <li><a href="/wiki/GPR152" title="GPR152">152</a></li> <li><a href="/wiki/GPR153" title="GPR153">153</a></li> <li><a href="/wiki/GPR160" title="GPR160">160</a></li> <li><a href="/wiki/GPR161" title="GPR161">161</a></li> <li><a href="/wiki/GPR162" title="GPR162">162</a></li> <li><a href="/wiki/GPR171" title="GPR171">171</a></li> <li><a href="/wiki/GPR173" title="GPR173">173</a></li> <li><a href="/wiki/GPR174" title="GPR174">174</a></li> <li><a href="/wiki/GPR176" title="GPR176">176</a></li> <li><a href="/wiki/GPR177" class="mw-redirect" title="GPR177">177</a></li> <li><a href="/wiki/GPR182" title="GPR182">182</a></li> <li><a href="/wiki/GPR183" title="GPR183">183</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:7em;text-align:left;"><i>Other</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/GPR182" title="GPR182">Adrenomedullin</a></li> <li><a href="/wiki/Olfactory_receptor" title="Olfactory receptor">Olfactory</a></li> <li><a href="/wiki/Opsin" title="Opsin">Opsin</a> (<a href="/wiki/OPN3" title="OPN3">3</a></li> <li><a href="/wiki/Melanopsin" title="Melanopsin">4</a></li> <li><a href="/wiki/OPN5" title="OPN5">5</a></li> <li><a href="/wiki/OPN1LW" title="OPN1LW">1LW</a></li> <li><a href="/wiki/OPN1MW" title="OPN1MW">1MW</a></li> <li><a href="/wiki/OPN1SW" title="OPN1SW">1SW</a></li> <li><a href="/wiki/Retinal_G_protein_coupled_receptor" title="Retinal G protein coupled receptor">RGR</a></li> <li><a href="/wiki/RRH" title="RRH">RRH</a>)</li> <li><a href="/wiki/Protease-activated_receptor" title="Protease-activated receptor">Protease-activated</a> (<a href="/wiki/Coagulation_factor_II_receptor" class="mw-redirect" title="Coagulation factor II receptor">1</a></li> <li><a href="/wiki/Protease_activated_receptor_2" class="mw-redirect" title="Protease activated receptor 2">2</a></li> <li><a href="/wiki/F2RL2" title="F2RL2">3</a></li> <li><a href="/wiki/F2RL3" title="F2RL3">4</a>)</li> <li><a href="/wiki/Super_Conserved_Receptor_Expressed_in_Brain" title="Super Conserved Receptor Expressed in Brain">SREB</a> (<a href="/wiki/GPR27" title="GPR27">1</a></li> <li><a href="/wiki/GPR85" title="GPR85">2</a></li> <li><a href="/wiki/GPR173" title="GPR173">3</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Class_B:_Secretin-like58" style="font-size:114%;margin:0 4em"><a href="/wiki/Secretin_receptor_family" title="Secretin receptor family">Class B</a>: <a href="/wiki/Secretin_receptor" title="Secretin receptor">Secretin</a>-like</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10em;text-align:left;"><a href="/wiki/Adhesion_G_protein-coupled_receptor" title="Adhesion G protein-coupled receptor">Adhesion</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i>ADGRB</i> <ul><li><a href="/wiki/Brain-specific_angiogenesis_inhibitor" title="Brain-specific angiogenesis inhibitor">Brain-specific angiogenesis inhibitor</a> <ul><li><a href="/wiki/Brain-specific_angiogenesis_inhibitor_1" title="Brain-specific angiogenesis inhibitor 1">1</a></li> <li><a href="/wiki/Brain-specific_angiogenesis_inhibitor_2" title="Brain-specific angiogenesis inhibitor 2">2</a></li> <li><a href="/wiki/Brain-specific_angiogenesis_inhibitor_3" title="Brain-specific angiogenesis inhibitor 3">3</a></li></ul></li></ul></li> <li><i>ADGRC</i> <ul><li><a href="/wiki/Flamingo_(protein)" title="Flamingo (protein)">Cadherin</a> <ul><li><a href="/wiki/CELSR1" title="CELSR1">1</a></li> <li><a href="/wiki/CELSR2" title="CELSR2">2</a></li> <li><a href="/wiki/CELSR3" title="CELSR3">3</a></li></ul></li></ul></li> <li><i>ADGRE</i> <ul><li><a href="/wiki/EGF_module-containing_mucin-like_hormone_receptor" title="EGF module-containing mucin-like hormone receptor">EMR</a> <ul><li><a href="/wiki/EMR1" title="EMR1">1</a></li> <li><a href="/wiki/EMR2" title="EMR2">2</a></li> <li><a href="/wiki/EMR3" title="EMR3">3</a></li></ul></li> <li><a href="/wiki/CD97" title="CD97">CD97</a></li></ul></li> <li><i>ADGRG</i> <ul><li><a href="/wiki/GPR56" title="GPR56">1</a></li> <li><a href="/wiki/GPR64" title="GPR64">2</a></li> <li><a href="/wiki/GPR97" title="GPR97">3</a></li> <li><a href="/wiki/GPR112" title="GPR112">4</a></li> <li><a href="/wiki/GPR114" title="GPR114">5</a></li> <li><a href="/wiki/GPR126" title="GPR126">6</a></li> <li><a href="/wiki/GPR128" title="GPR128">7</a></li></ul></li> <li><i>ADGRL</i> <ul><li><a href="/wiki/Latrophilin_receptor" class="mw-redirect" title="Latrophilin receptor">Latrophilin</a> <ul><li><a href="/wiki/Latrophilin_1" title="Latrophilin 1">1</a></li> <li><a href="/wiki/Latrophilin_2" title="Latrophilin 2">2</a></li> <li><a href="/wiki/Latrophilin_3" title="Latrophilin 3">3</a></li></ul></li> <li><a href="/wiki/ELTD1" class="mw-redirect" title="ELTD1">ELTD1</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10em;text-align:left;"><a href="/wiki/Orphan_receptor" title="Orphan receptor">Orphan</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i>GPR</i> (<a href="/wiki/GPR56" title="GPR56">56</a></li> <li><a href="/wiki/GPR64" title="GPR64">64</a></li> <li><a href="/wiki/GPR97" title="GPR97">97</a></li> <li><a href="/wiki/GPR98" title="GPR98">98</a></li> <li><a href="/wiki/GPR110" title="GPR110">110</a></li> <li><a href="/wiki/GPR111" title="GPR111">111</a></li> <li><a href="/wiki/GPR112" title="GPR112">112</a></li> <li><a href="/wiki/GPR113" title="GPR113">113</a></li> <li><a href="/wiki/GPR114" title="GPR114">114</a></li> <li><a href="/wiki/GPR115" title="GPR115">115</a></li> <li><a href="/wiki/GPR116" title="GPR116">116</a></li> <li><a href="/wiki/GPR123" title="GPR123">123</a></li> <li><a href="/wiki/GPR124" title="GPR124">124</a></li> <li><a href="/wiki/GPR125" title="GPR125">125</a></li> <li><a href="/wiki/GPR126" title="GPR126">126</a></li> <li><a href="/wiki/GPR128" title="GPR128">128</a></li> <li><a href="/wiki/GPR133" title="GPR133">133</a></li> <li><a href="/wiki/GPR143" title="GPR143">143</a></li> <li><a href="/wiki/GPR144" title="GPR144">144</a></li> <li><a href="/wiki/GPR155" title="GPR155">155</a></li> <li><a href="/wiki/GPR157" title="GPR157">157</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10em;text-align:left;"><i>Other</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Calcitonin_receptor" title="Calcitonin receptor">Calcitonin</a></li> <li><a href="/wiki/CALCRL" title="CALCRL">CALCRL</a></li> <li><a href="/wiki/Corticotropin-releasing_hormone_receptor" title="Corticotropin-releasing hormone receptor">Corticotropin-releasing hormone</a> (<a href="/wiki/Corticotropin-releasing_hormone_receptor_1" title="Corticotropin-releasing hormone receptor 1">1</a></li> <li><a href="/wiki/Corticotropin-releasing_hormone_receptor_2" title="Corticotropin-releasing hormone receptor 2">2</a>)</li> <li><a href="/wiki/Glucagon_receptor_family" title="Glucagon receptor family">Glucagon</a> (<a href="/wiki/Glucagon_receptor" title="Glucagon receptor">GR</a></li> <li><a href="/wiki/Gastric_inhibitory_polypeptide_receptor" title="Gastric inhibitory polypeptide receptor">GIPR</a></li> <li><a href="/wiki/Glucagon-like_peptide-1_receptor" title="Glucagon-like peptide-1 receptor">GLP1R</a></li> <li><a href="/wiki/Glucagon-like_peptide-2_receptor" title="Glucagon-like peptide-2 receptor">GLP2R</a>)</li> <li><a href="/wiki/Growth-hormone-releasing_hormone_receptor" title="Growth-hormone-releasing hormone receptor">Growth-hormone-releasing hormone</a></li> <li><a href="/wiki/ADCYAP1R1" title="ADCYAP1R1">PACAPR1</a></li> <li><a href="/wiki/Orphan_receptor" title="Orphan receptor">GPR</a></li> <li><a href="/wiki/Methuselah-like_proteins" title="Methuselah-like proteins">Methuselah-like proteins</a></li> <li><a href="/wiki/Parathyroid_hormone_receptor" title="Parathyroid hormone receptor">Parathyroid hormone</a> (<a href="/wiki/Parathyroid_hormone_1_receptor" title="Parathyroid hormone 1 receptor">1</a></li> <li><a href="/wiki/Parathyroid_hormone_2_receptor" title="Parathyroid hormone 2 receptor">2</a>)</li> <li><a href="/wiki/Secretin_receptor" title="Secretin receptor">Secretin</a></li> <li><a href="/wiki/Vasoactive_intestinal_peptide_receptor" title="Vasoactive intestinal peptide receptor">Vasoactive intestinal peptide</a> (<a href="/wiki/VIPR1" title="VIPR1">1</a></li> <li><a href="/wiki/VIPR2" title="VIPR2">2</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Class_C:_Metabotropic_glutamate_/_pheromone58" style="font-size:114%;margin:0 4em"><a href="/wiki/Class_C_GPCR" title="Class C GPCR">Class C</a>: <a href="/wiki/Metabotropic_receptor" title="Metabotropic receptor">Metabotropic</a> <a href="/wiki/Metabotropic_glutamate_receptor" title="Metabotropic glutamate receptor">glutamate</a> / <a href="/wiki/Pheromone" title="Pheromone">pheromone</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10em;text-align:left;"><a href="/wiki/Taste_receptor" title="Taste receptor">Taste</a>, sweet</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i>TAS1R</i> <ul><li><a href="/wiki/TAS1R1" title="TAS1R1">1</a></li> <li><a href="/wiki/TAS1R2" title="TAS1R2">2</a></li> <li><a href="/wiki/TAS1R3" title="TAS1R3">3</a></li></ul></li> <li><a href="/wiki/Vomeronasal_receptor" title="Vomeronasal receptor">Vomeronasal receptor</a>, type 2</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10em;text-align:left;"><i>Other</i></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Calcium-sensing_receptor" title="Calcium-sensing receptor">Calcium-sensing receptor</a></li> <li><a href="/wiki/GABA_receptor" title="GABA receptor">GABA<sub>B</sub></a> (<a href="/wiki/GABBR1" title="GABBR1">1</a></li> <li><a href="/wiki/GABBR2" title="GABBR2">2</a>)</li> <li><a href="/wiki/Glutamate_receptor" title="Glutamate receptor">Glutamate receptor</a> (<a href="/wiki/Metabotropic_glutamate_receptor" title="Metabotropic glutamate receptor">Metabotropic glutamate</a> (<a href="/wiki/Metabotropic_glutamate_receptor_1" title="Metabotropic glutamate receptor 1">1</a></li> <li><a href="/wiki/Metabotropic_glutamate_receptor_2" title="Metabotropic glutamate receptor 2">2</a></li> <li><a href="/wiki/Metabotropic_glutamate_receptor_3" title="Metabotropic glutamate receptor 3">3</a></li> <li><a href="/wiki/Metabotropic_glutamate_receptor_4" title="Metabotropic glutamate receptor 4">4</a></li> <li><a href="/wiki/Metabotropic_glutamate_receptor_5" title="Metabotropic glutamate receptor 5">5</a></li> <li><a href="/wiki/Metabotropic_glutamate_receptor_6" title="Metabotropic glutamate receptor 6">6</a></li> <li><a href="/wiki/Metabotropic_glutamate_receptor_7" title="Metabotropic glutamate receptor 7">7</a></li> <li><a href="/wiki/Metabotropic_glutamate_receptor_8" title="Metabotropic glutamate receptor 8">8</a>))</li> <li><a href="/wiki/GPRC6A" title="GPRC6A">GPRC6A</a></li> <li><a href="/wiki/Orphan_receptor" title="Orphan receptor">GPR</a> (<a href="/wiki/GPR156" title="GPR156">156</a></li> <li><a href="/wiki/GPR158" title="GPR158">158</a></li> <li><a href="/wiki/GPR179" title="GPR179">179</a>)</li> <li><a href="/wiki/Retinoic_acid-inducible_orphan_G_protein-coupled_receptor" title="Retinoic acid-inducible orphan G protein-coupled receptor">RAIG</a> (<a href="/wiki/GPRC5A" title="GPRC5A">1</a></li> <li><a href="/wiki/GPRC5B" title="GPRC5B">2</a></li> <li><a href="/wiki/GPRC5C" title="GPRC5C">3</a></li> <li><a href="/wiki/GPRC5D" title="GPRC5D">4</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Class_F:_Frizzled_&amp;_Smoothened58" style="font-size:114%;margin:0 4em">Class F: <a href="/wiki/Frizzled" title="Frizzled">Frizzled</a> & <a href="/wiki/Smoothened" title="Smoothened">Smoothened</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:10em;text-align:left;">Frizzled</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Frizzled" title="Frizzled">Frizzled</a> (<a href="/wiki/FZD1" class="mw-redirect" title="FZD1">1</a></li> <li><a href="/wiki/FZD2" class="mw-redirect" title="FZD2">2</a></li> <li><a href="/wiki/FZD3" class="mw-redirect" title="FZD3">3</a></li> <li><a href="/wiki/FZD4" class="mw-redirect" title="FZD4">4</a></li> <li><a href="/wiki/FZD5" class="mw-redirect" title="FZD5">5</a></li> <li><a href="/wiki/FZD6" class="mw-redirect" title="FZD6">6</a></li> <li><a href="/wiki/FZD7" class="mw-redirect" title="FZD7">7</a></li> <li><a href="/wiki/FZD8" class="mw-redirect" title="FZD8">8</a></li> <li><a href="/wiki/FZD9" class="mw-redirect" title="FZD9">9</a></li> <li><a href="/wiki/FZD10" class="mw-redirect" title="FZD10">10</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:10em;text-align:left;">Smoothened</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Smoothened" title="Smoothened">Smoothened</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table></div> <p><i>This article incorporates text from the <a href="/wiki/United_States_National_Library_of_Medicine" title="United States National Library of Medicine">United States National Library of Medicine</a>, which is in the <a href="/wiki/Public_domain" title="Public domain">public 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