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class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Positive_Allosteric_Modulators"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Positive Allosteric Modulators</span> </div> </a> <ul id="toc-Positive_Allosteric_Modulators-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Antagonists" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Antagonists"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Antagonists</span> </div> </a> <ul id="toc-Antagonists-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" 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Available in 11 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-11" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">11 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/GABAB_receptor" title="GABAB receptor – Czech" lang="cs" hreflang="cs" data-title="GABAB receptor" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%AF%DB%8C%D8%B1%D9%86%D8%AF%D9%87_%DA%AF%D8%A7%D8%A8%D8%A7_B" title="گیرنده گابا B – Persian" lang="fa" hreflang="fa" data-title="گیرنده گابا B" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/R%C3%A9cepteur_GABAB" title="Récepteur GABAB – French" lang="fr" hreflang="fr" data-title="Récepteur GABAB" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Recettore_GABA_B" title="Recettore GABA B – Italian" lang="it" hreflang="it" data-title="Recettore GABA B" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/GABAB%E5%8F%97%E5%AE%B9%E4%BD%93" title="GABAB受容体 – Japanese" lang="ja" hreflang="ja" data-title="GABAB受容体" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Receptor_GABAB" title="Receptor GABAB – Portuguese" lang="pt" hreflang="pt" data-title="Receptor GABAB" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A0%D0%B5%D1%86%D0%B5%D0%BF%D1%82%D0%BE%D1%80_%D0%93%D0%90%D0%9C%D0%9A-B" title="Рецептор ГАМК-B – Russian" lang="ru" hreflang="ru" data-title="Рецептор ГАМК-B" 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/GABAB_receptor" title="GABAB receptor – Serbian" lang="sr" hreflang="sr" data-title="GABAB receptor" 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/GABAB_receptor" title="GABAB receptor – Serbo-Croatian" lang="sh" hreflang="sh" data-title="GABAB receptor" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%93%D0%90%D0%9C%D0%9AB-%D1%80%D0%B5%D1%86%D0%B5%D0%BF%D1%82%D0%BE%D1%80" title="ГАМКB-рецептор – 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<div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">(Redirected from <a href="/w/index.php?title=%CE%93-Aminobutyric_acid_B_receptor&redirect=no" class="mw-redirect" title="Γ-Aminobutyric acid B receptor">Γ-Aminobutyric acid B receptor</a>)</span></div></div> <div id="mw-content-text" 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">G-protein coupled receptor</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above"><a href="/wiki/GABBR1" title="GABBR1">gamma-aminobutyric acid (GABA) B receptor, 1</a></th></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Identifiers</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Symbol</th><td class="infobox-data" style="background-color: #eee">GABBR1</td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/National_Center_for_Biotechnology_Information#Gene" title="National Center for Biotechnology Information">NCBI gene</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/gene?cmd=retrieve&dopt=default&list_uids=2550&rn=1">2550</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/HUGO_Gene_Nomenclature_Committee" title="HUGO Gene Nomenclature Committee">HGNC</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:4070">4070</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Online_Mendelian_Inheritance_in_Man" title="Online Mendelian Inheritance in Man">OMIM</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://omim.org/entry/603540">603540</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/RefSeq" title="RefSeq">RefSeq</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/protein/NM_021905">NM_021905</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Swiss-Prot" class="mw-redirect" title="Swiss-Prot">UniProt</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/Q9UBS5">Q9UBS5</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Other data</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Locus</a></th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/Chromosome_6_(human)" class="mw-redirect" title="Chromosome 6 (human)">Chr. 6</a> <i><a rel="nofollow" class="external text" href="https://omim.org/search/?index=geneMap&search=6p21.3">p21.3</a></i></td></tr><tr><td colspan="2" class="infobox-full-data" style="background-color: #eee"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546" /><table class="infobox mw-collapsible mw-collapsed" style="float:none; clear:none; margin:0; border-width:0; border-collapse:collapse; text-align:left; width:100%"><tbody><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Search for</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Structures</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://swissmodel.expasy.org/repository/uniprot/Q9UBS5">Swiss-model</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Domains</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/interpro/protein/Q9UBS5">InterPro</a></td></tr></tbody></table></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546" /><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above"><a href="/wiki/GABBR2" title="GABBR2">gamma-aminobutyric acid (GABA) B receptor, 2</a></th></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Identifiers</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Symbol</th><td class="infobox-data" style="background-color: #eee">GABBR2</td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3">Alt. symbols</th><td class="infobox-data" style="background-color: #eee">GPR51</td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/National_Center_for_Biotechnology_Information#Gene" title="National Center for Biotechnology Information">NCBI gene</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/gene?cmd=retrieve&dopt=default&list_uids=9568&rn=1">9568</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/HUGO_Gene_Nomenclature_Committee" title="HUGO Gene Nomenclature Committee">HGNC</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:4507">4507</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Online_Mendelian_Inheritance_in_Man" title="Online Mendelian Inheritance in Man">OMIM</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://omim.org/entry/607340">607340</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/RefSeq" title="RefSeq">RefSeq</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/protein/NM_005458">NM_005458</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Swiss-Prot" class="mw-redirect" title="Swiss-Prot">UniProt</a></th><td class="infobox-data" style="background-color: #eee"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/O75899">O75899</a></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Other data</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Locus</a></th><td class="infobox-data" style="background-color: #eee"><a href="/wiki/Chromosome_9_(human)" class="mw-redirect" title="Chromosome 9 (human)">Chr. 9</a> <i><a rel="nofollow" class="external text" href="https://omim.org/search/?index=geneMap&search=9q22.1">q22.1-22.3</a></i></td></tr><tr><td colspan="2" class="infobox-full-data" style="background-color: #eee"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546" /><table class="infobox mw-collapsible mw-collapsed" style="float:none; clear:none; margin:0; border-width:0; border-collapse:collapse; text-align:left; width:100%"><tbody><tr><th colspan="2" class="infobox-header" style="background-color: #ddd">Search for</th></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Structures</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://swissmodel.expasy.org/repository/uniprot/O75899">Swiss-model</a></td></tr><tr><th scope="row" class="infobox-label" style="background-color: #e7dcc3; border:#fafafa 2px solid; border-width:3px 2px 0 0;">Domains</th><td class="infobox-data" style="background-color: #eee; border:#fafafa 2px solid; border-width:3px 0 0 2px;"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/interpro/protein/O75899">InterPro</a></td></tr></tbody></table></td></tr></tbody></table> <p><b>GABA<sub>B</sub> receptors</b> (GABA<sub>B</sub>R) are <a href="/wiki/G_protein-coupled_receptor" title="G protein-coupled receptor">G-protein coupled receptors</a> for <a href="/wiki/Gamma-aminobutyric_acid" class="mw-redirect" title="Gamma-aminobutyric acid">gamma-aminobutyric acid</a> (GABA), therefore making them <a href="/wiki/Metabotropic_receptor" title="Metabotropic receptor">metabotropic receptors</a>, that are linked via <a href="/wiki/G-protein" class="mw-redirect" title="G-protein">G-proteins</a> to <a href="/wiki/Potassium_channel" title="Potassium channel">potassium channels</a>.<sup id="cite_ref-Chen_1-0" class="reference"><a href="#cite_note-Chen-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The changing potassium concentrations hyperpolarize the cell at the end of an action potential. The reversal potential of the GABA<sub>B</sub>-mediated IPSP (inhibitory postsynaptic potential) is −100 mV, which is much more hyperpolarized than the <a href="/wiki/GABAA_receptor" title="GABAA receptor">GABA<sub>A</sub></a> IPSP. GABA<sub>B</sub> receptors are found in the <a href="/wiki/Central_nervous_system" title="Central nervous system">central nervous system</a> and the <a href="/wiki/Autonomic_nervous_system" title="Autonomic nervous system">autonomic</a> division of the <a href="/wiki/Peripheral_nervous_system" title="Peripheral nervous system">peripheral nervous system</a>.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The receptors were first named in 1981 when their distribution in the CNS was determined, which was determined by <a href="/wiki/Norman_Bowery" title="Norman Bowery">Norman Bowery</a> and his team using radioactively labelled <a href="/wiki/Baclofen" title="Baclofen">baclofen</a>.<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> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Functions">Functions</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=GABAB_receptor&action=edit&section=1" title="Edit section: Functions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>GABA<sub>B</sub>Rs stimulate the opening of <a href="/wiki/Potassium_channel" title="Potassium channel">K<sup>+</sup> channels</a>, specifically <a href="/wiki/G_protein-coupled_inwardly-rectifying_potassium_channel" class="mw-redirect" title="G protein-coupled inwardly-rectifying potassium channel">GIRKs</a>, which brings the <a href="/wiki/Neuron" title="Neuron">neuron</a> closer to the <a href="/wiki/Reversal_potential" title="Reversal potential">equilibrium potential</a> of K<sup>+</sup>. This reduces the frequency of <a href="/wiki/Action_potential" title="Action potential">action potentials</a> which reduces <a href="/wiki/Neurotransmitter" title="Neurotransmitter">neurotransmitter</a> release.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (October 2015)">citation needed</span></a></i>]</sup> Thus GABA<sub>B</sub> receptors are inhibitory receptors. </p><p>GABA<sub>B</sub> receptors also reduces the activity of <a href="/wiki/Adenylyl_cyclase" title="Adenylyl cyclase">adenylyl cyclase</a> and <a href="/wiki/Ca_channels" class="mw-redirect" title="Ca channels">Ca<sup>2+</sup> channels</a> by using G-proteins with <a href="/wiki/GiG0_alpha_subunits" class="mw-redirect" title="GiG0 alpha subunits">G<sub>i</sub>/G<sub>0</sub> α subunits</a>.<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> </p><p>GABA<sub>B</sub> receptors are involved in behavioral actions of <a href="/wiki/Ethanol" title="Ethanol">ethanol</a>,<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Gamma-Hydroxybutyric_acid" class="mw-redirect" title="Gamma-Hydroxybutyric acid">gamma-hydroxybutyric acid</a> (GHB),<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> and possibly in pain.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Recent research suggests that these receptors may play an important developmental role.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:6VJM_GABAB_Receptor_dimer_inactive.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a6/6VJM_GABAB_Receptor_dimer_inactive.png/220px-6VJM_GABAB_Receptor_dimer_inactive.png" decoding="async" width="220" height="358" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a6/6VJM_GABAB_Receptor_dimer_inactive.png/330px-6VJM_GABAB_Receptor_dimer_inactive.png 1.5x, //upload.wikimedia.org/wikipedia/commons/a/a6/6VJM_GABAB_Receptor_dimer_inactive.png 2x" data-file-width="426" data-file-height="693" /></a><figcaption>Receptor dimer, inactive apo state, cartoon representation</figcaption></figure> <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=GABAB_receptor&action=edit&section=2" title="Edit section: Structure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>GABA<sub>B</sub> Receptors are similar in structure to and in the same receptor family with <a href="/wiki/Metabotropic_glutamate_receptor" title="Metabotropic glutamate receptor">metabotropic glutamate receptors</a>.<sup id="cite_ref-MRC_10-0" class="reference"><a href="#cite_note-MRC-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> There are two subunits of the receptor, <a href="/wiki/GABBR1" title="GABBR1">GABA<sub>B1</sub></a> and <a href="/wiki/GABBR2" title="GABBR2">GABA<sub>B2</sub></a>,<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> and these appear to assemble as obligate <a href="/wiki/Heterodimer" class="mw-redirect" title="Heterodimer">heterodimers</a> in neuronal membranes by linking up by their intracellular <a href="/wiki/C_terminus" class="mw-redirect" title="C terminus">C termini</a>.<sup id="cite_ref-MRC_10-1" class="reference"><a href="#cite_note-MRC-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> In the mammalian brain, two predominant, differentially expressed <a href="/wiki/Protein_isoform" title="Protein isoform">isoforms</a> of the GABA<sub>B1</sub> are transcribed from the Gabbr1 gene, GABA<sub>B(1a)</sub> and GABA<sub>B(1b)</sub>, which are conserved in different species including humans.<sup id="cite_ref-:0_12-0" class="reference"><a href="#cite_note-:0-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> This might potentially offer more complexity in terms of the function due to different composition of the receptor.<sup id="cite_ref-:0_12-1" class="reference"><a href="#cite_note-:0-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Cryo-electron_microscopy" class="mw-redirect" title="Cryo-electron microscopy">Cryo-electron microscopy</a> structures of the full length GABA<sub>B</sub> receptor in different conformational states from inactive <i>apo</i> to fully active have been obtained. Unlike Class A and B GPCRs, phospholipids bind within the transmembrane bundles and allosteric modulators bind at the interface of <a href="/wiki/GABBR1" title="GABBR1">GABA<sub>B1</sub></a> and <a href="/wiki/GABBR2" title="GABBR2">GABA<sub>B2</sub></a> subunits.<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><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><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><sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><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><sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Ligands">Ligands</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=GABAB_receptor&action=edit&section=3" title="Edit section: Ligands"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Gamma-Aminobutters%C3%A4ure_-_gamma-aminobutyric_acid.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Gamma-Aminobutters%C3%A4ure_-_gamma-aminobutyric_acid.svg/120px-Gamma-Aminobutters%C3%A4ure_-_gamma-aminobutyric_acid.svg.png" decoding="async" width="120" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Gamma-Aminobutters%C3%A4ure_-_gamma-aminobutyric_acid.svg/180px-Gamma-Aminobutters%C3%A4ure_-_gamma-aminobutyric_acid.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Gamma-Aminobutters%C3%A4ure_-_gamma-aminobutyric_acid.svg/240px-Gamma-Aminobutters%C3%A4ure_-_gamma-aminobutyric_acid.svg.png 2x" data-file-width="232" data-file-height="77" /></a><figcaption><a href="/wiki/Gamma-aminobutyric_acid" class="mw-redirect" title="Gamma-aminobutyric acid">GABA</a></figcaption></figure> <figure typeof="mw:File/Thumb"><a href="/wiki/File:4-Hydroxybutans%C3%A4ure_-_4-Hydroxybutanoic_acid.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/4-Hydroxybutans%C3%A4ure_-_4-Hydroxybutanoic_acid.svg/120px-4-Hydroxybutans%C3%A4ure_-_4-Hydroxybutanoic_acid.svg.png" decoding="async" width="120" height="42" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/4-Hydroxybutans%C3%A4ure_-_4-Hydroxybutanoic_acid.svg/180px-4-Hydroxybutans%C3%A4ure_-_4-Hydroxybutanoic_acid.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b7/4-Hydroxybutans%C3%A4ure_-_4-Hydroxybutanoic_acid.svg/240px-4-Hydroxybutans%C3%A4ure_-_4-Hydroxybutanoic_acid.svg.png 2x" data-file-width="221" data-file-height="77" /></a><figcaption><a href="/wiki/Gamma-Hydroxybutyrate" class="mw-redirect" title="Gamma-Hydroxybutyrate">GHB</a></figcaption></figure> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Lesogaberan.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Lesogaberan.svg/120px-Lesogaberan.svg.png" decoding="async" width="120" height="48" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Lesogaberan.svg/180px-Lesogaberan.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/64/Lesogaberan.svg/240px-Lesogaberan.svg.png 2x" data-file-width="512" data-file-height="204" /></a><figcaption><a href="/wiki/Lesogaberan" title="Lesogaberan">Lesogaberan</a></figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Agonists">Agonists</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=GABAB_receptor&action=edit&section=4" title="Edit section: Agonists"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Gamma-aminobutyric_acid" class="mw-redirect" title="Gamma-aminobutyric acid">GABA</a></li> <li><a href="/wiki/Baclofen" title="Baclofen">Baclofen</a> is a GABA <a href="/wiki/Analog_(chemistry)" class="mw-redirect" title="Analog (chemistry)">analogue</a> which acts as a selective agonist of GABA<sub>B</sub> receptors, and is used as a <a href="/wiki/Muscle_relaxant" title="Muscle relaxant">muscle relaxant</a>. However, it can aggravate <a href="/wiki/Absence_seizure" title="Absence seizure">absence seizures</a>, and so is not used in <a href="/wiki/Epilepsy" title="Epilepsy">epilepsy</a>.</li> <li><a href="/wiki/Gamma-Hydroxybutyrate" class="mw-redirect" title="Gamma-Hydroxybutyrate"><i>gamma</i>-Hydroxybutyrate</a> (GHB)</li> <li><a href="/wiki/Phenibut" title="Phenibut">Phenibut</a></li> <li><a href="/wiki/4-Fluorophenibut" title="4-Fluorophenibut">4-Fluorophenibut</a></li> <li><a href="/wiki/Isovaline" title="Isovaline">Isovaline</a></li> <li><a href="/wiki/3-Aminopropylphosphinic_acid" class="mw-redirect" title="3-Aminopropylphosphinic acid">3-Aminopropylphosphinic acid</a></li> <li><a href="/wiki/Lesogaberan" title="Lesogaberan">Lesogaberan</a></li> <li><a href="/wiki/SKF-97541" class="mw-redirect" title="SKF-97541">SKF-97541</a>: 3-Aminopropyl(methyl)phosphinic acid, 10× more potent than baclofen as GABA<sub>B</sub> agonist, but also <a href="/wiki/GABAA-rho_receptor" title="GABAA-rho receptor">GABA<sub>A</sub>-ρ</a> antagonist</li> <li><a href="/wiki/Taurine" title="Taurine">Taurine</a></li> <li><a href="/w/index.php?title=CGP-44532&action=edit&redlink=1" class="new" title="CGP-44532 (page does not exist)">CGP-44532</a></li></ul> <figure typeof="mw:File/Thumb"><a href="/wiki/File:CGP-7930_chemical_structure.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e6/CGP-7930_chemical_structure.svg/140px-CGP-7930_chemical_structure.svg.png" decoding="async" width="140" height="92" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e6/CGP-7930_chemical_structure.svg/210px-CGP-7930_chemical_structure.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e6/CGP-7930_chemical_structure.svg/280px-CGP-7930_chemical_structure.svg.png 2x" data-file-width="512" data-file-height="338" /></a><figcaption><a href="/wiki/CGP-7930" title="CGP-7930">CGP-7930</a></figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Positive_Allosteric_Modulators">Positive Allosteric Modulators</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=GABAB_receptor&action=edit&section=5" title="Edit section: Positive Allosteric Modulators"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/CGP-7930" title="CGP-7930">CGP-7930</a><sup id="cite_ref-pmid11641424_20-0" class="reference"><a href="#cite_note-pmid11641424-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid17894647_21-0" class="reference"><a href="#cite_note-pmid17894647-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/BHFF" title="BHFF">BHFF</a></li> <li><a href="/wiki/Fendiline" title="Fendiline">Fendiline</a></li> <li><a href="/wiki/BHF-177" title="BHF-177">BHF-177</a><sup id="cite_ref-pmid18445779_22-0" class="reference"><a href="#cite_note-pmid18445779-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/BSPP_(drug)" title="BSPP (drug)">BSPP</a></li> <li><a href="/wiki/GS-39783" title="GS-39783">GS-39783</a><sup id="cite_ref-pmid12954816_23-0" class="reference"><a href="#cite_note-pmid12954816-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup></li></ul> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Phaclofen.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Phaclofen.svg/130px-Phaclofen.svg.png" decoding="async" width="130" height="77" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Phaclofen.svg/195px-Phaclofen.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Phaclofen.svg/260px-Phaclofen.svg.png 2x" data-file-width="552" data-file-height="325" /></a><figcaption><a href="/wiki/Phaclofen" title="Phaclofen">Phaclofen</a></figcaption></figure> <figure typeof="mw:File/Thumb"><a href="/wiki/File:SCH-50911.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/46/SCH-50911.svg/110px-SCH-50911.svg.png" decoding="async" width="110" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/46/SCH-50911.svg/165px-SCH-50911.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/46/SCH-50911.svg/220px-SCH-50911.svg.png 2x" data-file-width="473" data-file-height="259" /></a><figcaption><a href="/wiki/SCH-50911" title="SCH-50911">SCH-50911</a></figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Antagonists">Antagonists</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=GABAB_receptor&action=edit&section=6" title="Edit section: Antagonists"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Homotaurine" title="Homotaurine">Homotaurine</a><sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Ginsenosides" class="mw-redirect" title="Ginsenosides">Ginsenosides</a><sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup></li> <li><a href="/w/index.php?title=2-OH-saclofen&action=edit&redlink=1" class="new" title="2-OH-saclofen (page does not exist)">2-OH-saclofen</a></li> <li><a href="/wiki/Saclofen" title="Saclofen">Saclofen</a></li> <li><a href="/wiki/Phaclofen" title="Phaclofen">Phaclofen</a></li> <li><a href="/wiki/SCH-50911" title="SCH-50911">SCH-50911</a></li> <li><a href="/wiki/2-Phenethylamine" class="mw-redirect" title="2-Phenethylamine">2-Phenethylamine</a></li> <li><a href="/wiki/CGP-35348" title="CGP-35348">CGP-35348</a></li> <li><a href="/w/index.php?title=CGP-52432&action=edit&redlink=1" class="new" title="CGP-52432 (page does not exist)">CGP-52432</a>: 3-([(3,4-Dichlorophenyl)methyl]amino]propyl) diethoxymethyl)phosphinic acid, CAS# 139667-74-6</li> <li><a href="/w/index.php?title=CGP-55845&action=edit&redlink=1" class="new" title="CGP-55845 (page does not exist)">CGP-55845</a>: (2S)-3-([(1S)-1-(3,4-Dichlorophenyl)ethyl]amino-2-hydroxypropyl)(phenylmethyl)phosphinic acid, CAS# 149184-22-5</li> <li><a href="/w/index.php?title=SGS-742&action=edit&redlink=1" class="new" title="SGS-742 (page does not exist)">SGS-742</a><sup id="cite_ref-pmid15451390_26-0" class="reference"><a href="#cite_note-pmid15451390-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pmid15675610_27-0" class="reference"><a href="#cite_note-pmid15675610-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup></li></ul> <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=GABAB_receptor&action=edit&section=7" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/GABA_receptor" title="GABA receptor">GABA receptor</a></li> <li><a href="/wiki/GABA_A_receptor" class="mw-redirect" title="GABA A receptor">GABA<sub>A</sub> 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=GABAB_receptor&action=edit&section=8" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-Chen-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-Chen_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFChenLiYeZhang2005" class="citation journal cs1">Chen K, Li HZ, Ye N, Zhang J, Wang JJ (October 2005). 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"3H-baclofen and 3H-GABA bind to bicuculline-insensitive GABA B sites in rat brain". <i>Nature</i>. <b>290</b> (5802): <span class="nowrap">149–</span>52. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1981Natur.290..149H">1981Natur.290..149H</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1038%2F290149a0">10.1038/290149a0</a>. <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/6259535">6259535</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:4335907">4335907</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Nature&rft.atitle=3H-baclofen+and+3H-GABA+bind+to+bicuculline-insensitive+GABA+B+sites+in+rat+brain&rft.volume=290&rft.issue=5802&rft.pages=%3Cspan+class%3D%22nowrap%22%3E149-%3C%2Fspan%3E52&rft.date=1981-03&rft_id=info%3Adoi%2F10.1038%2F290149a0&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A4335907%23id-name%3DS2CID&rft_id=info%3Apmid%2F6259535&rft_id=info%3Abibcode%2F1981Natur.290..149H&rft.aulast=Hill&rft.aufirst=DR&rft.au=Bowery%2C+NG&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGABAB+receptor" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFRangDaleRitterFlower2016" class="citation book cs1">Rang HP, Dale MM, Ritter JM, Flower RJ, Henderson G (2016). <i>Rang and Dale's Pharmacology</i> (8th ed.). 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class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFDzitoyevaDimitrijevicManev2003" class="citation journal cs1">Dzitoyeva S, Dimitrijevic N, Manev H (April 2003). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC154371">"Gamma-aminobutyric acid B receptor 1 mediates behavior-impairing actions of alcohol in Drosophila: adult RNA interference and pharmacological evidence"</a>. <i>Proceedings of the National Academy of Sciences of the United States of America</i>. <b>100</b> (9): <span class="nowrap">5485–</span>90. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2003PNAS..100.5485D">2003PNAS..100.5485D</a>. <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/10.1073%2Fpnas.0830111100">10.1073/pnas.0830111100</a></span>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a> <span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC154371">154371</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/12692303">12692303</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Gamma-aminobutyric+acid+B+receptor+1+mediates+behavior-impairing+actions+of+alcohol+in+Drosophila%3A+adult+RNA+interference+and+pharmacological+evidence&rft.volume=100&rft.issue=9&rft.pages=%3Cspan+class%3D%22nowrap%22%3E5485-%3C%2Fspan%3E90&rft.date=2003-04&rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC154371%23id-name%3DPMC&rft_id=info%3Apmid%2F12692303&rft_id=info%3Adoi%2F10.1073%2Fpnas.0830111100&rft_id=info%3Abibcode%2F2003PNAS..100.5485D&rft.aulast=Dzitoyeva&rft.aufirst=S&rft.au=Dimitrijevic%2C+N&rft.au=Manev%2C+H&rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC154371&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGABAB+receptor" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> 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"Interactions of ginsenosides with ligand-bindings of GABA(A) and GABA(B) receptors". <i>General Pharmacology</i>. <b>25</b> (1): <span class="nowrap">193–</span>9. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2F0306-3623%2894%2990032-9">10.1016/0306-3623(94)90032-9</a>. <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/8026706">8026706</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=General+Pharmacology&rft.atitle=Interactions+of+ginsenosides+with+ligand-bindings+of+GABA%28A%29+and+GABA%28B%29+receptors&rft.volume=25&rft.issue=1&rft.pages=%3Cspan+class%3D%22nowrap%22%3E193-%3C%2Fspan%3E9&rft.date=1994-01&rft_id=info%3Adoi%2F10.1016%2F0306-3623%2894%2990032-9&rft_id=info%3Apmid%2F8026706&rft.aulast=Kimura&rft.aufirst=T&rft.au=Saunders%2C+PA&rft.au=Kim%2C+HS&rft.au=Rheu%2C+HM&rft.au=Oh%2C+KW&rft.au=Ho%2C+IK&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGABAB+receptor" class="Z3988"></span></span> </li> <li id="cite_note-pmid15451390-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid15451390_26-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFFroestlGallagherJenkinsMadrid2004" class="citation journal cs1">Froestl W, Gallagher M, Jenkins H, Madrid A, Melcher T, Teichman S, et al. (October 2004). "SGS742: the first GABA(B) receptor antagonist in clinical trials". <i>Biochemical Pharmacology</i>. <b>68</b> (8): <span class="nowrap">1479–</span>87. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.bcp.2004.07.030">10.1016/j.bcp.2004.07.030</a>. <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/15451390">15451390</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Biochemical+Pharmacology&rft.atitle=SGS742%3A+the+first+GABA%28B%29+receptor+antagonist+in+clinical+trials&rft.volume=68&rft.issue=8&rft.pages=%3Cspan+class%3D%22nowrap%22%3E1479-%3C%2Fspan%3E87&rft.date=2004-10&rft_id=info%3Adoi%2F10.1016%2Fj.bcp.2004.07.030&rft_id=info%3Apmid%2F15451390&rft.aulast=Froestl&rft.aufirst=W&rft.au=Gallagher%2C+M&rft.au=Jenkins%2C+H&rft.au=Madrid%2C+A&rft.au=Melcher%2C+T&rft.au=Teichman%2C+S&rft.au=Mondadori%2C+CG&rft.au=Pearlman%2C+R&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGABAB+receptor" class="Z3988"></span></span> </li> <li id="cite_note-pmid15675610-27"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid15675610_27-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFBullock2005" class="citation journal cs1">Bullock R (January 2005). "SGS-742 Novartis". <i>Current Opinion in Investigational Drugs</i>. <b>6</b> (1): <span class="nowrap">108–</span>13. <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/15675610">15675610</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Current+Opinion+in+Investigational+Drugs&rft.atitle=SGS-742+Novartis&rft.volume=6&rft.issue=1&rft.pages=%3Cspan+class%3D%22nowrap%22%3E108-%3C%2Fspan%3E13&rft.date=2005-01&rft_id=info%3Apmid%2F15675610&rft.aulast=Bullock&rft.aufirst=R&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGABAB+receptor" 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=GABAB_receptor&action=edit&section=9" title="Edit 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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 href="/wiki/S1PR1" title="S1PR1">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 href="/wiki/S1PR1" title="S1PR1">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 uncollapsed 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" 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