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Period circadian protein homolog 1 - Wikipedia

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href="#Paralogs"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Paralogs</span> </div> </a> <ul id="toc-Paralogs-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Location" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Location"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Location</span> </div> </a> <ul id="toc-Location-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Discovery" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Discovery"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Discovery</span> </div> </a> <ul id="toc-Discovery-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " 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</nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" 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Homo sapiens</div> <table class="infobox" style="width:26.4em"><tbody><tr><th colspan="4" style="text-align:center;font-size:125%;font-weight:bold">PER1</th></tr><tr><td colspan="4" style="text-align:center"><span typeof="mw:File"><a href="/wiki/File:PER1_.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/PER1_.png/250px-PER1_.png" decoding="async" width="250" height="250" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/PER1_.png/375px-PER1_.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/PER1_.png/500px-PER1_.png 2x" data-file-width="2100" data-file-height="2100" /></a></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><table style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:#ddd">Available structures</th></tr><tr><th rowspan="2" style="background-color:#c3fdb8;width:43px"><a href="/wiki/Protein_Data_Bank" title="Protein Data Bank">PDB</a></th><td colspan="2" style="background-color:#eee">Ortholog search: <span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/pdbe/searchResults.html?display=both&amp;term=O35973%20or%20O15534%20or%20J3QL46">PDBe</a> <a rel="nofollow" class="external text" href="https://www.rcsb.org/search?q=rcsb_polymer_entity_container_identifiers.reference_sequence_identifiers.database_name:UniProt%20AND%20rcsb_polymer_entity_container_identifiers.reference_sequence_identifiers.database_accession:O35973,O15534,J3QL46">RCSB</a> </span></td></tr><tr><td><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr style="background-color:#ddd;text-align:center"><th colspan="2">List of PDB id codes</th></tr><tr><td colspan="2" style="background-color:#eee"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.rcsb.org/structure/1UL6">1UL6</a></span></p></td></tr></tbody></table></td></tr></tbody></table></td></tr><tr><th colspan="4" style="text-align:center;background-color:#ddd">Identifiers</th></tr><tr><th scope="row" style="background-color:#c3fdb8"><span class="plainlinks"><a href="/wiki/Gene_nomenclature" title="Gene nomenclature">Aliases</a></span></th><td colspan="3" style="background:#eee"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/8845">PER1</a></span>, PER, RIGUI, hPER, period circadian clock 1, period circadian regulator 1</td></tr><tr><th scope="row" style="background-color:#c3fdb8">External IDs</th><td colspan="3" style="background-color:#eee"><span class="plainlinks"><a href="/wiki/Mendelian_Inheritance_in_Man" class="mw-redirect" title="Mendelian Inheritance in Man">OMIM</a>: <a rel="nofollow" class="external text" href="https://omim.org/entry/602260">602260</a>; <a href="/wiki/Mouse_Genome_Informatics" title="Mouse Genome Informatics">MGI</a>: <a rel="nofollow" class="external text" href="http://www.informatics.jax.org/marker/MGI:1098283">1098283</a>; <a href="/wiki/HomoloGene" title="HomoloGene">HomoloGene</a>: <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&amp;db=homologene&amp;dopt=HomoloGene&amp;list_uids=1966">1966</a>; <a href="/wiki/GeneCards" title="GeneCards">GeneCards</a>: <a rel="nofollow" class="external text" href="https://www.genecards.org/cgi-bin/carddisp.pl?gene=PER1">PER1</a>; <a href="/wiki/Orthologous_MAtrix" title="Orthologous MAtrix">OMA</a>:<a rel="nofollow" class="external text" href="https://omabrowser.org/oma/vps/ENSG00000179094">PER1 - orthologs</a></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:#ddd">Gene location (<a href="/wiki/Human_genome" title="Human genome">Human</a>)</th></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><span typeof="mw:File"><a href="/wiki/File:Ideogram_human_chromosome_17.svg" class="mw-file-description" title="Chromosome 17 (human)"><img alt="Chromosome 17 (human)" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Ideogram_human_chromosome_17.svg/300px-Ideogram_human_chromosome_17.svg.png" decoding="async" width="300" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Ideogram_human_chromosome_17.svg/450px-Ideogram_human_chromosome_17.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/00/Ideogram_human_chromosome_17.svg/600px-Ideogram_human_chromosome_17.svg.png 2x" data-file-width="474" data-file-height="189" /></a></span></td></tr><tr><th scope="row" width="15%" style="background-color:#c3fdb8"><a href="/wiki/Chromosome" title="Chromosome">Chr.</a></th><td colspan="3" width="85%" style="background-color:#eee"><span class="plainlinks"><a href="/wiki/Chromosome_17_(human)" class="mw-redirect" title="Chromosome 17 (human)">Chromosome 17 (human)</a><sup id="cite_ref-refGRCh38Ensembl_1-0" class="reference"><a href="#cite_note-refGRCh38Ensembl-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><div align="center"><div style="position: relative; width: 300px;"><span typeof="mw:File"><a href="/wiki/File:Human_chromosome_17_ideogram.svg" class="mw-file-description" title="Chromosome 17 (human)"><img alt="Chromosome 17 (human)" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Human_chromosome_17_ideogram.svg/300px-Human_chromosome_17_ideogram.svg.png" decoding="async" width="300" height="58" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Human_chromosome_17_ideogram.svg/450px-Human_chromosome_17_ideogram.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Human_chromosome_17_ideogram.svg/600px-Human_chromosome_17_ideogram.svg.png 2x" data-file-width="1125" data-file-height="216" /></a></span><div style="position: absolute; left: 23.387110388545px; top: 2px; padding: 0;"><span typeof="mw:File"><a href="/wiki/File:HSR_1996_II_3.5e.svg" class="mw-file-description" title="Genomic location for PER1"><img alt="Genomic location for PER1" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/14px-HSR_1996_II_3.5e.svg.png" decoding="async" width="14" height="14" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/21px-HSR_1996_II_3.5e.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/28px-HSR_1996_II_3.5e.svg.png 2x" data-file-width="142" data-file-height="142" /></a></span></div><div style="position: absolute; left: 29.4px; top: 19px; padding: 0;"><span typeof="mw:File"><a href="/wiki/File:Red_rectangle_2x18.png" class="mw-file-description" title="Genomic location for PER1"><img alt="Genomic location for PER1" src="//upload.wikimedia.org/wikipedia/commons/6/6a/Red_rectangle_2x18.png" decoding="async" width="2" height="18" class="mw-file-element" data-file-width="2" data-file-height="18" /></a></span></div></div></div></td></tr><tr><th scope="row" rowspan="2" width="15%" style="background-color:#c3fdb8"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Band</a></th><td rowspan="2" width="35%" style="background-color:#eee"><span class="plainlinks">17p13.1</span></td><th scope="row" style="background-color:#c3fdb8">Start</th><td style="background-color:#eee"><span class="plainlinks">8,140,472 <a href="/wiki/Base_pair" title="Base pair">bp</a><sup id="cite_ref-refGRCh38Ensembl_1-1" class="reference"><a href="#cite_note-refGRCh38Ensembl-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup></span></td></tr><tr><th scope="row" style="background-color:#c3fdb8">End</th><td style="background-color:#eee"><span class="plainlinks">8,156,506 <a href="/wiki/Base_pair" title="Base pair">bp</a><sup id="cite_ref-refGRCh38Ensembl_1-2" class="reference"><a href="#cite_note-refGRCh38Ensembl-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup></span></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:#ddd">Gene location (<a href="/wiki/Laboratory_mouse" title="Laboratory mouse">Mouse</a>)</th></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><span typeof="mw:File"><a href="/wiki/File:Ideogram_house_mouse_chromosome_11.svg" class="mw-file-description" title="Chromosome 11 (mouse)"><img alt="Chromosome 11 (mouse)" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a5/Ideogram_house_mouse_chromosome_11.svg/260px-Ideogram_house_mouse_chromosome_11.svg.png" decoding="async" width="260" height="111" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a5/Ideogram_house_mouse_chromosome_11.svg/390px-Ideogram_house_mouse_chromosome_11.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a5/Ideogram_house_mouse_chromosome_11.svg/520px-Ideogram_house_mouse_chromosome_11.svg.png 2x" data-file-width="470" data-file-height="200" /></a></span></td></tr><tr><th scope="row" width="15%" style="background-color:#c3fdb8"><a href="/wiki/Chromosome" title="Chromosome">Chr.</a></th><td colspan="3" width="85%" style="background-color:#eee"><span class="plainlinks">Chromosome 11 (mouse)<sup id="cite_ref-refGRCm38Ensembl_2-0" class="reference"><a href="#cite_note-refGRCm38Ensembl-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><div align="center"><div style="position: relative; width: 300px;"><span typeof="mw:File"><a href="/wiki/File:Ideogram_of_house_mouse_chromosome_11.svg" class="mw-file-description" title="Chromosome 11 (mouse)"><img alt="Chromosome 11 (mouse)" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Ideogram_of_house_mouse_chromosome_11.svg/300px-Ideogram_of_house_mouse_chromosome_11.svg.png" decoding="async" width="300" height="58" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Ideogram_of_house_mouse_chromosome_11.svg/450px-Ideogram_of_house_mouse_chromosome_11.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Ideogram_of_house_mouse_chromosome_11.svg/600px-Ideogram_of_house_mouse_chromosome_11.svg.png 2x" data-file-width="1200" data-file-height="231" /></a></span><div style="position: absolute; left: 160.82568048743px; top: 2px; padding: 0;"><span typeof="mw:File"><a href="/wiki/File:HSR_1996_II_3.5e.svg" class="mw-file-description" title="Genomic location for PER1"><img alt="Genomic location for PER1" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/14px-HSR_1996_II_3.5e.svg.png" decoding="async" width="14" height="14" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/21px-HSR_1996_II_3.5e.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d8/HSR_1996_II_3.5e.svg/28px-HSR_1996_II_3.5e.svg.png 2x" data-file-width="142" data-file-height="142" /></a></span></div><div style="position: absolute; left: 166.8px; top: 19px; padding: 0;"><span typeof="mw:File"><a href="/wiki/File:Red_rectangle_2x18.png" class="mw-file-description" title="Genomic location for PER1"><img alt="Genomic location for PER1" src="//upload.wikimedia.org/wikipedia/commons/6/6a/Red_rectangle_2x18.png" decoding="async" width="2" height="18" class="mw-file-element" data-file-width="2" data-file-height="18" /></a></span></div></div></div></td></tr><tr><th scope="row" rowspan="2" width="15%" style="background-color:#c3fdb8"><a href="/wiki/Locus_(genetics)" title="Locus (genetics)">Band</a></th><td rowspan="2" width="35%" style="background-color:#eee"><span class="plainlinks">11&#124;11 B3</span></td><th scope="row" style="background-color:#c3fdb8">Start</th><td style="background-color:#eee"><span class="plainlinks">68,986,043 <a href="/wiki/Base_pair" title="Base pair">bp</a><sup id="cite_ref-refGRCm38Ensembl_2-1" class="reference"><a href="#cite_note-refGRCm38Ensembl-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></span></td></tr><tr><th scope="row" style="background-color:#c3fdb8">End</th><td style="background-color:#eee"><span class="plainlinks">69,000,786 <a href="/wiki/Base_pair" title="Base pair">bp</a><sup id="cite_ref-refGRCm38Ensembl_2-2" class="reference"><a href="#cite_note-refGRCm38Ensembl-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></span></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:#ddd"><a href="/wiki/Gene_expression" title="Gene expression">RNA expression</a> pattern</th></tr><tr><th scope="row" style="background-color:#c3fdb8"><a rel="nofollow" class="external text" href="https://www.bgee.org/">Bgee</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th><b><a href="/wiki/Human_genome" title="Human genome">Human</a></b></th><th><b><a href="/wiki/Laboratory_mouse" title="Laboratory mouse">Mouse</a> (ortholog)</b></th></tr><tr><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:center"><tbody><tr><td colspan="1"><span class="plainlinks" style="margin:-3px"><a rel="nofollow" class="external text" href="https://www.bgee.org/gene/ENSG00000179094">Top expressed in</a></span></td></tr><tr><td colspan="1"><div class="plainlinks" style="margin:-12px 0px -10px 0px"><ul style="line-height:15%;margin:9px"><li style="line-height: 137%;">gastric mucosa</li><br /><li style="line-height: 137%;">tibial nerve</li><br /><li style="line-height: 137%;">skin of leg</li><br /><li style="line-height: 137%;">skin of abdomen</li><br /><li style="line-height: 137%;">right ovary</li><br /><li style="line-height: 137%;">left ovary</li><br /><li style="line-height: 137%;">tibial arteries</li><br /><li style="line-height: 137%;">right lung</li><br /><li style="line-height: 137%;">left uterine tube</li><br /><li style="line-height: 137%;">anterior pituitary</li></ul></div></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:center"><tbody><tr><td colspan="1"><span class="plainlinks" style="margin:-3px"><a rel="nofollow" class="external text" href="https://www.bgee.org/gene/ENSMUSG00000020893">Top expressed in</a></span></td></tr><tr><td colspan="1"><div class="plainlinks" style="margin:-12px 0px -10px 0px"><ul style="line-height:15%;margin:9px"><li style="line-height: 137%;">granulocyte</li><br /><li style="line-height: 137%;">muscle of thigh</li><br /><li style="line-height: 137%;">superior frontal gyrus</li><br /><li style="line-height: 137%;">plantaris muscle</li><br /><li style="line-height: 137%;">extensor digitorum longus muscle</li><br /><li style="line-height: 137%;">neural layer of retina</li><br /><li style="line-height: 137%;">lacrimal gland</li><br /><li style="line-height: 137%;">ankle</li><br /><li style="line-height: 137%;">primary visual cortex</li><br /><li style="line-height: 137%;">stroma of bone marrow</li></ul></div></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.bgee.org/gene/ENSG00000179094">More reference expression data</a></span></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:#c3fdb8"><a rel="nofollow" class="external text" href="http://biogps.org/">BioGPS</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><td colspan="4" style="text-align:center;background-color:#eee"><span typeof="mw:File"><a href="/wiki/File:PBB_GE_PER1_202861_at_fs.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/PBB_GE_PER1_202861_at_fs.png/250px-PBB_GE_PER1_202861_at_fs.png" decoding="async" width="250" height="181" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/PBB_GE_PER1_202861_at_fs.png/375px-PBB_GE_PER1_202861_at_fs.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b0/PBB_GE_PER1_202861_at_fs.png/500px-PBB_GE_PER1_202861_at_fs.png 2x" data-file-width="732" data-file-height="530" /></a></span><br /><br /><span typeof="mw:File"><a href="/wiki/File:PBB_GE_PER1_36829_at_fs.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/PBB_GE_PER1_36829_at_fs.png/250px-PBB_GE_PER1_36829_at_fs.png" decoding="async" width="250" height="181" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/PBB_GE_PER1_36829_at_fs.png/375px-PBB_GE_PER1_36829_at_fs.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/PBB_GE_PER1_36829_at_fs.png/500px-PBB_GE_PER1_36829_at_fs.png 2x" data-file-width="732" data-file-height="530" /></a></span></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><span class="plainlinks"><a rel="nofollow" class="external text" href="http://biogps.org/gene/5187/">More reference expression data</a></span></td></tr></tbody></table></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><table class="collapsible collapsed" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:#ddd"><a href="/wiki/Gene_ontology" class="mw-redirect" title="Gene ontology">Gene ontology</a></th></tr><tr><td style="background-color:#c3fdb8;font-weight:bold">Molecular function</td><td style="background-color:#eee"><div class="plainlinks"> <ul><li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0008134">transcription factor binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0000976">transcription cis-regulatory region binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0000978">RNA polymerase II cis-regulatory region sequence-specific DNA binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0070888">E-box binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0019900">kinase binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0031490">chromatin DNA binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0031625">ubiquitin protein ligase binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0005515">protein binding</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0001222">transcription corepressor binding</a></li></ul> </div></td></tr><tr><td style="background-color:#c3fdb8;font-weight:bold">Cellular component</td><td style="background-color:#eee"><div class="plainlinks"> <ul><li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0005737">cytoplasm</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0005634">nucleus</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0005654">nucleoplasm</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0005829">cytosol</a></li></ul> </div></td></tr><tr><td style="background-color:#c3fdb8;font-weight:bold">Biological process</td><td style="background-color:#eee"><div class="plainlinks"> <ul><li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0070932">histone H3 deacetylation</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:2000323">negative regulation of glucocorticoid receptor signaling pathway</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0006355">regulation of transcription, DNA-templated</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0009416">response to light stimulus</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:1900015">regulation of cytokine production involved in inflammatory response</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0002028">regulation of sodium ion transport</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0048511">rhythmic process</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0000122">negative regulation of transcription by RNA polymerase II</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0043124">negative regulation of I-kappaB kinase/NF-kappaB signaling</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0032922">circadian regulation of gene expression</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0006351">transcription, DNA-templated</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0009649">entrainment of circadian clock</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0046329">negative regulation of JNK cascade</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0097167">circadian regulation of translation</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0042752">regulation of circadian rhythm</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0007623">circadian rhythm</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0043966">histone H3 acetylation</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0042634">regulation of hair cycle</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0043967">histone H4 acetylation</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0010608">posttranscriptional regulation of gene expression</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0051591">response to cAMP</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:1900744">regulation of p38MAPK cascade</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0045892">negative regulation of transcription, DNA-templated</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0043153">entrainment of circadian clock by photoperiod</a></li> <li><a rel="nofollow" class="external text" href="http://amigo.geneontology.org/amigo/term/GO:0045944">positive regulation of transcription by RNA polymerase II</a></li></ul> </div></td></tr><tr><td colspan="4" style="background-color:#eee;text-align:center">Sources:<a rel="nofollow" class="external text" href="http://amigo.geneontology.org/">Amigo</a> / <a rel="nofollow" class="external text" href="https://www.ebi.ac.uk/QuickGO/">QuickGO</a></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><table class="collapsible" style="padding:0;border:none;margin:0;width:100%;text-align:left"><tbody><tr><th colspan="4" style="text-align:center;background-color:#ddd"><a href="/wiki/Orthologs" class="mw-redirect" title="Orthologs">Orthologs</a></th></tr><tr><th scope="row" style="background-color:#c3fdb8">Species</th><td><b>Human</b></td><td><b>Mouse</b></td></tr><tr><th scope="row" style="background-color:#c3fdb8"><a href="/wiki/Entrez" title="Entrez">Entrez</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene&amp;cmd=retrieve&amp;dopt=default&amp;list_uids=5187&amp;rn=1">5187</a></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene&amp;cmd=retrieve&amp;dopt=default&amp;list_uids=18626&amp;rn=1">18626</a></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:#c3fdb8"><a href="/wiki/Ensembl" class="mw-redirect" title="Ensembl">Ensembl</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="http://www.ensembl.org/Homo_sapiens/geneview?gene=ENSG00000179094;db=core">ENSG00000179094</a></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="http://www.ensembl.org/Mus_musculus/geneview?gene=ENSMUSG00000020893;db=core">ENSMUSG00000020893</a></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:#c3fdb8"><a href="/wiki/UniProt" title="UniProt">UniProt</a></th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/O15534">O15534</a></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1"><span class="plainlinks"></span></th></tr><tr><td colspan="1"><p class="plainlinks"><a rel="nofollow" class="external text" href="https://www.uniprot.org/uniprot/O35973">O35973</a></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:#c3fdb8">RefSeq (mRNA)</th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1" class="plainlinks"></th></tr><tr><td colspan="1"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NM_002616">NM_002616</a></span></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1" class="plainlinks"></th></tr><tr><td colspan="1"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NM_001159367">NM_001159367</a><br /><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NM_011065">NM_011065</a></span></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:#c3fdb8">RefSeq (protein)</th><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1" class="plainlinks"></th></tr><tr><td colspan="1"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NP_002607">NP_002607</a></span></p></td></tr></tbody></table></td><td><table class="none" style="padding:0;border:none;margin:0;width:100%;text-align:right"><tbody><tr><th colspan="1" class="plainlinks"></th></tr><tr><td colspan="1"><p><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NP_001152839">NP_001152839</a><br /><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=NP_035195">NP_035195</a></span></p></td></tr></tbody></table></td></tr><tr><th scope="row" style="background-color:#c3fdb8">Location (UCSC)</th><td><span class="plainlinks"><a rel="nofollow" class="external text" href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Human&amp;db=hg38&amp;position=chr17:8140472-8156506">Chr 17: 8.14 – 8.16 Mb</a></span></td><td><span class="plainlinks"><a rel="nofollow" class="external text" href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Mouse&amp;db=mm0&amp;position=chr11:68986043-69000786">Chr 11: 68.99 – 69 Mb</a></span></td></tr><tr><th scope="row" style="background-color:#c3fdb8"><a href="/wiki/PubMed" title="PubMed">PubMed</a> search</th><td><span class="plainlinks"><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup></span></td><td><span class="plainlinks"><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup></span></td></tr></tbody></table></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><a href="/wiki/Wikidata" title="Wikidata">Wikidata</a></td></tr><tr><td colspan="4" style="text-align:center;background-color:#eee"><table style="padding:0;border:none;margin:0;width:100%;text-align:center"><tbody><tr><td colspan="2" style="background-color:#eee;text-align:center"><a href="https://www.wikidata.org/wiki/Q15326762" class="extiw" title="d:Q15326762">View/Edit Human</a></td><td colspan="2" style="background-color:#eee;text-align:center"><a href="https://www.wikidata.org/wiki/Q15326765" class="extiw" title="d:Q15326765">View/Edit Mouse</a></td></tr></tbody></table></td></tr></tbody></table> <p><b>Period circadian protein homolog 1</b> is a protein in humans that is encoded by the <i>PER1</i> <a href="/wiki/Gene" title="Gene">gene</a>.<sup id="cite_ref-pmid9323128_5-0" class="reference"><a href="#cite_note-pmid9323128-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Function">Function</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=1" title="Edit section: Function"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The PER1 protein is important to the maintenance of circadian rhythms in cells, and may also play a role in the development of cancer. This gene is a member of the <a href="/wiki/Period_(gene)" title="Period (gene)">period</a> family of genes. It is expressed with a daily oscillating <a href="/wiki/Circadian" class="mw-redirect" title="Circadian">circadian</a> rhythm, or an oscillation that cycles with a period of approximately 24 hours. PER1 is most notably expressed in the region of the brain called the <a href="/wiki/Suprachiasmatic_nucleus" title="Suprachiasmatic nucleus">suprachiasmatic nucleus</a> (SCN), which is the primary circadian pacemaker in the mammalian brain. PER1 is also expressed throughout mammalian peripheral tissues.<sup id="cite_ref-pmid17395534_6-0" class="reference"><a href="#cite_note-pmid17395534-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> Genes in this family encode components of the <a href="/wiki/Circadian_rhythm" title="Circadian rhythm">circadian rhythms</a> of locomotor activity, <a href="/wiki/Metabolism" title="Metabolism">metabolism</a>, and behavior. Circadian expression of PER1 in the suprachiasmatic nucleus will free-run in constant darkness, meaning that the 24-hour period of the cycle will persist without the aid of external light cues. Subsequently, a shift in the light/dark cycle evokes a proportional shift of gene expression in the suprachiasmatic nucleus. The time of gene expression is sensitive to light, as light during a mammal's subjective night results in a sudden increase in per expression and thus a shift in phase in the suprachiasmatic nucleus.<sup id="cite_ref-pmid8971980_7-0" class="reference"><a href="#cite_note-pmid8971980-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Alternative_splicing" title="Alternative splicing">Alternative splicing</a> has been observed in this gene; however, these variants have not been fully described.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> There is some disagreement between experts over the occurrence of <a href="/wiki/Polymorphism_(biology)" title="Polymorphism (biology)">polymorphisms</a> with functional significance. Many scientists state that there are no known polymorphisms of the human PER1 gene with significance at a population level that results in measurable behavioral or physiological changes.<sup id="cite_ref-pmid23034908_9-0" class="reference"><a href="#cite_note-pmid23034908-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> Still, some believe that even silent mutations can cause significant behavioral phenotypes, and result in major phase changes.<sup id="cite_ref-pmid17051316_10-0" class="reference"><a href="#cite_note-pmid17051316-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> </p><p>Functional conservation of the PER gene is shown in a study by Shigeyoshi et al. 2002. In this study, mouse mPer1 and mPer2 genes were driven by Drosophila timeless promoter in Drosophila melanogaster. They found that both mPer constructs could restore rhythm to arrhythmic flies (per01 flies). Thus mPer1 and mPer2 can function as clock components in flies and may have implications concerning the homology of per genes.<sup id="cite_ref-pmid11895480_11-0" class="reference"><a href="#cite_note-pmid11895480-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Role_in_chronobiology">Role in chronobiology</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=2" title="Edit section: Role in chronobiology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The PER1 gene, also called rigui, is a characteristic circadian oscillator. PER1 is rhythmically transcribed in the SCN, keeping a period of approximately 24 hours. This rhythm is sustained in constant darkness, and can also be entrained to changing light cycles.<sup id="cite_ref-pmid9323128_5-1" class="reference"><a href="#cite_note-pmid9323128-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> PER1 is involved in generating circadian rhythms in the SCN, and also has an effect on other oscillations throughout the body. For example, PER1 knockouts affect food entrainable oscillators and methamphetamine-sensitive circadian oscillators, whose periods are altered in the absence of PER1.<sup id="cite_ref-pmid22891330_12-0" class="reference"><a href="#cite_note-pmid22891330-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup> In addition, mice with knockouts in both the PER1 and <a href="/wiki/PER2" title="PER2">PER2</a> genes show no circadian rhythmicity.<sup id="cite_ref-Zheng_2001_13-0" class="reference"><a href="#cite_note-Zheng_2001-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup> Phase shifts in PER1 neurons can be induced by a strong, brief light stimulus to the SCN of rats. This light exposure causes increases in PER1 mRNA, suggesting that the PER1 gene plays an important role in entrainment of the mammalian biological clock to the light-dark cycle.<sup id="cite_ref-pmid11044582_14-0" class="reference"><a href="#cite_note-pmid11044582-14"><span class="cite-bracket">&#91;</span>14<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Feedback_mechanism">Feedback mechanism</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=3" title="Edit section: Feedback mechanism"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The PER1 mRNA is expressed in all cells, acting as a part of a transcription-translation negative feedback mechanism, which creates a cell autonomous molecular clock. PER1 transcription is regulated by protein interactions with its five E-box and one D-box elements in its promoter region. Heterodimer <a href="/wiki/CLOCK" title="CLOCK">CLOCK</a>-<a href="/wiki/BMAL1" class="mw-redirect" title="BMAL1">BMAL1</a> activates <a href="/wiki/E-box" title="E-box">E-box</a> elements present in the PER1 promoter, as well activating the E box promoters of other components of the molecular clock such as PER2, <a href="/wiki/CRY1" class="mw-redirect" title="CRY1">CRY1</a>, and <a href="/wiki/CRY2" class="mw-redirect" title="CRY2">CRY2</a>. The phase of PER1 mRNA expression varies between tissues,<sup id="cite_ref-pmid20693532_15-0" class="reference"><a href="#cite_note-pmid20693532-15"><span class="cite-bracket">&#91;</span>15<span class="cite-bracket">&#93;</span></a></sup> The transcript leaves the nucleus and is translated into a protein with <a href="/wiki/PAS_domain" title="PAS domain">PAS domains</a>, which enable protein-protein interactions. PER1 and PER2 are phosphorylated by CK1ε, which leads to increased ubiquitylation and degradation.<sup id="cite_ref-pmid10790862_16-0" class="reference"><a href="#cite_note-pmid10790862-16"><span class="cite-bracket">&#91;</span>16<span class="cite-bracket">&#93;</span></a></sup> This phosphorylation is counteracted by PP1 phosphatase, resulting in a more gradual increase in phosphorylated PER, and an additional control over the period of the molecular clock.<sup id="cite_ref-pmid21930935_17-0" class="reference"><a href="#cite_note-pmid21930935-17"><span class="cite-bracket">&#91;</span>17<span class="cite-bracket">&#93;</span></a></sup> Phosphorylation of PER1 can also lead to masking of its leucine-rich <a href="/wiki/Nuclear_localization_sequence" title="Nuclear localization sequence">nuclear localization sequence</a> and thus impeded heterodimer import.<sup id="cite_ref-pmid11591712_18-0" class="reference"><a href="#cite_note-pmid11591712-18"><span class="cite-bracket">&#91;</span>18<span class="cite-bracket">&#93;</span></a></sup> </p><p>PER interacts with other PER proteins as well as the E-box regulated, clock controlled proteins CRY1 and CRY2 to create a heterodimer which translocates into the nucleus. There it inhibits CLOCK-BMAL activation.<sup id="cite_ref-pmid16987893_19-0" class="reference"><a href="#cite_note-pmid16987893-19"><span class="cite-bracket">&#91;</span>19<span class="cite-bracket">&#93;</span></a></sup> PER1 is not necessary for the creation circadian rhythms, but homozygous PER1 mutants display a shortened period of mRNA expression.<sup id="cite_ref-Zheng_2001_13-1" class="reference"><a href="#cite_note-Zheng_2001-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup> While PER1 must be mutated in conjunction with PER2 to result in arhythmiticity, the two translated PER proteins have been shown to have slightly different roles, as PER1 acts preferentially through interaction with other clock proteins.<sup id="cite_ref-pmid11395012_20-0" class="reference"><a href="#cite_note-pmid11395012-20"><span class="cite-bracket">&#91;</span>20<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Clinical_significance">Clinical significance</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=4" title="Edit section: Clinical significance"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>PER1 expression may have significant effects on the cell cycle. Cancer is often a result of unregulated cell growth and division, which can be controlled by circadian mechanisms. Therefore, a cell's circadian clock may play a large role in its likelihood of developing into a cancer cell. PER1 is a gene that plays an important role in such a circadian mechanism. Its overexpression, in particular, causes DNA-damage induced apoptosis. In addition, down-regulation of PER1 can enhance tumor growth in mammals.<sup id="cite_ref-pmid19916834_21-0" class="reference"><a href="#cite_note-pmid19916834-21"><span class="cite-bracket">&#91;</span>21<span class="cite-bracket">&#93;</span></a></sup> PER1 also interacts with proteins <a href="/wiki/Ataxia_telangiectasia_mutated" class="mw-redirect" title="Ataxia telangiectasia mutated">ATM</a> and <a href="/wiki/CHEK2" title="CHEK2">Chk2</a>. These proteins are key checkpoint proteins in the cell cycle.<sup id="cite_ref-pmid15361830_22-0" class="reference"><a href="#cite_note-pmid15361830-22"><span class="cite-bracket">&#91;</span>22<span class="cite-bracket">&#93;</span></a></sup> Cancer patients have a lowered expression of per1. Gery, et al. suggests that regulation of PER1 expression may be useful for cancer treatment in the future.<sup id="cite_ref-pmid16678109_23-0" class="reference"><a href="#cite_note-pmid16678109-23"><span class="cite-bracket">&#91;</span>23<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Gene">Gene</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=5" title="Edit section: Gene"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Orthologs">Orthologs</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=6" title="Edit section: Orthologs"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The following is a list of some <a href="/wiki/Homology_(biology)#Orthology" title="Homology (biology)">orthologs</a> of the PER1 gene in other species:<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">&#91;</span>24<span class="cite-bracket">&#93;</span></a></sup> </p> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 20em;"> <ul><li>PER1 (<i>Rattus norvegicus</i>)</li> <li>PER1 (<i>Mus musculus</i>)</li> <li>per1a (<i>Danio rerio</i>)</li> <li>PER1 (<i>Homo sapiens</i>)</li> <li>lin-42 (<i>Caenorhabditis elegans</i>)</li> <li>PER1 (<i>Bos taurus</i>)</li> <li>per1b (<i>Danio rerio</i>)</li> <li>PER (<i>Drosophila melanogaster</i>)</li> <li>PER1 (<i>Xenopus tropicalis</i>)</li> <li>PER1 (<i>Equus caballus</i>)</li> <li>PER1 (<i>Macaca mulatta</i>)</li> <li>PER1 (<i>Sus scrofa</i>)</li></ul> </div> <div class="mw-heading mw-heading3"><h3 id="Paralogs">Paralogs</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=7" title="Edit section: Paralogs"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/PER2" title="PER2">PER2</a></li> <li><a href="/wiki/PER3" title="PER3">PER3</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Location">Location</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=8" title="Edit section: Location"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The human PER1 gene is located on chromosome 17 at the following location:<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">&#91;</span>25<span class="cite-bracket">&#93;</span></a></sup> </p> <ul><li>Start: 8,140,470</li> <li>Finish: 8,156,405</li> <li>Length: 15,936</li> <li>Exons: 24</li></ul> <p>PER1 has 19 transcripts (splice variants). </p> <div class="mw-heading mw-heading2"><h2 id="Discovery">Discovery</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=9" title="Edit section: Discovery"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The PER1 <a href="/wiki/Ortholog" class="mw-redirect" title="Ortholog">ortholog</a> was first discovered by Ronald Konopka and Seymour Benzer in 1971. During 1997, Period 1 (mPer1) and Period 2 (mPer2) genes were discovered (Sun et al., 1997 and Albretch et al., 1997). Through homology screens with the Drosophila per, these genes were discovered. It was independently discovered by Sun et al. 1997, naming it RIGUI and by Tei et al. 1997, who named it hper because of the protein sequence similarity with Drosophila per. They found that the mouse homolog had the properties of a circadian regulator. It had circadian expression in the suprachiasmatic nucleus (<a href="/wiki/Suprachiasmatic_nucleus" title="Suprachiasmatic nucleus">SCN</a>), self-sustained oscillation, and entrainment of circadian expression by external light cues.<sup id="cite_ref-pmid9428527_26-0" class="reference"><a href="#cite_note-pmid9428527-26"><span class="cite-bracket">&#91;</span>26<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=10" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 35em;"> <ol class="references"> <li id="cite_note-refGRCh38Ensembl-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-refGRCh38Ensembl_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-refGRCh38Ensembl_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-refGRCh38Ensembl_1-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://May2017.archive.ensembl.org/Homo_sapiens/Gene/Summary?db=core;g=ENSG00000179094">GRCh38: Ensembl release 89: ENSG00000179094</a> &#8211; <a href="/wiki/Ensembl_genome_database_project" title="Ensembl genome database project">Ensembl</a>, May 2017</span> </li> <li id="cite_note-refGRCm38Ensembl-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-refGRCm38Ensembl_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-refGRCm38Ensembl_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-refGRCm38Ensembl_2-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://May2017.archive.ensembl.org/Mus_musculus/Gene/Summary?db=core;g=ENSMUSG00000020893">GRCm38: Ensembl release 89: ENSMUSG00000020893</a> &#8211; <a href="/wiki/Ensembl_genome_database_project" title="Ensembl genome database project">Ensembl</a>, May 2017</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</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 class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/sites/entrez?db=gene&amp;cmd=Link&amp;LinkName=gene_pubmed&amp;from_uid=5187">"Human PubMed Reference:"</a>. <i>National Center for Biotechnology Information, U.S. National Library of Medicine</i>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=National+Center+for+Biotechnology+Information%2C+U.S.+National+Library+of+Medicine&amp;rft.atitle=Human+PubMed+Reference%3A&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fsites%2Fentrez%3Fdb%3Dgene%26cmd%3DLink%26LinkName%3Dgene_pubmed%26from_uid%3D5187&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" 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 class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/sites/entrez?db=gene&amp;cmd=Link&amp;LinkName=gene_pubmed&amp;from_uid=18626">"Mouse PubMed Reference:"</a>. <i>National Center for Biotechnology Information, U.S. National Library of Medicine</i>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=National+Center+for+Biotechnology+Information%2C+U.S.+National+Library+of+Medicine&amp;rft.atitle=Mouse+PubMed+Reference%3A&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fsites%2Fentrez%3Fdb%3Dgene%26cmd%3DLink%26LinkName%3Dgene_pubmed%26from_uid%3D18626&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid9323128-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-pmid9323128_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-pmid9323128_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSunAlbrechtZhuchenkoBailey1997" class="citation journal cs1">Sun ZS, Albrecht U, Zhuchenko O, Bailey J, Eichele G, Lee CC (September 1997). <a rel="nofollow" class="external text" href="https://doi.org/10.1016%2FS0092-8674%2800%2980366-9">"RIGUI, a putative mammalian ortholog of the Drosophila period gene"</a>. <i>Cell</i>. <b>90</b> (6): 1003–11. <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/10.1016%2FS0092-8674%2800%2980366-9">10.1016/S0092-8674(00)80366-9</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/9323128">9323128</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Cell&amp;rft.atitle=RIGUI%2C+a+putative+mammalian+ortholog+of+the+Drosophila+period+gene&amp;rft.volume=90&amp;rft.issue=6&amp;rft.pages=1003-11&amp;rft.date=1997-09&amp;rft_id=info%3Adoi%2F10.1016%2FS0092-8674%2800%2980366-9&amp;rft_id=info%3Apmid%2F9323128&amp;rft.aulast=Sun&amp;rft.aufirst=ZS&amp;rft.au=Albrecht%2C+U&amp;rft.au=Zhuchenko%2C+O&amp;rft.au=Bailey%2C+J&amp;rft.au=Eichele%2C+G&amp;rft.au=Lee%2C+CC&amp;rft_id=https%3A%2F%2Fdoi.org%2F10.1016%252FS0092-8674%252800%252980366-9&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid17395534-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid17395534_6-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLamontJamesBoivinCermakian2007" class="citation journal cs1">Lamont EW, James FO, Boivin DB, Cermakian N (September 2007). "From circadian clock gene expression to pathologies". <i>Sleep Med</i>. <b>8</b> (6): 547–56. <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.sleep.2006.11.002">10.1016/j.sleep.2006.11.002</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/17395534">17395534</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Sleep+Med.&amp;rft.atitle=From+circadian+clock+gene+expression+to+pathologies&amp;rft.volume=8&amp;rft.issue=6&amp;rft.pages=547-56&amp;rft.date=2007-09&amp;rft_id=info%3Adoi%2F10.1016%2Fj.sleep.2006.11.002&amp;rft_id=info%3Apmid%2F17395534&amp;rft.aulast=Lamont&amp;rft.aufirst=EW&amp;rft.au=James%2C+FO&amp;rft.au=Boivin%2C+DB&amp;rft.au=Cermakian%2C+N&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid8971980-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid8971980_7-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFEbling1996" class="citation journal cs1">Ebling FJ (October 1996). "The role of glutamate in the photic regulation of the suprachiasmatic nucleus". <i>Prog. Neurobiol</i>. <b>50</b> (2–3): 109–32. <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%2FS0301-0082%2896%2900032-9">10.1016/S0301-0082(96)00032-9</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/8971980">8971980</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:29336791">29336791</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Prog.+Neurobiol.&amp;rft.atitle=The+role+of+glutamate+in+the+photic+regulation+of+the+suprachiasmatic+nucleus&amp;rft.volume=50&amp;rft.issue=2%E2%80%933&amp;rft.pages=109-32&amp;rft.date=1996-10&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A29336791%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F8971980&amp;rft_id=info%3Adoi%2F10.1016%2FS0301-0082%2896%2900032-9&amp;rft.aulast=Ebling&amp;rft.aufirst=FJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><a href="/wiki/Entrez" title="Entrez">EntrezGene</a> <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene&amp;cmd=retrieve&amp;dopt=default&amp;list_uids=5187">5187</a></span> </li> <li id="cite_note-pmid23034908-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid23034908_9-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLimChangShulmanRaj2012" class="citation journal cs1">Lim AS, Chang AM, Shulman JM, Raj T, Chibnik LB, Cain SW, Rothamel K, Benoist C, Myers AJ, Czeisler CA, Buchman AS, Bennett DA, Duffy JF, Saper CB, De Jager PL (September 2012). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3464954">"A common polymorphism near PER1 and the timing of human behavioral rhythms"</a>. <i>Ann. Neurol</i>. <b>72</b> (3): 324–34. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1002%2Fana.23636">10.1002/ana.23636</a>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a>&#160;<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3464954">3464954</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/23034908">23034908</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Ann.+Neurol.&amp;rft.atitle=A+common+polymorphism+near+PER1+and+the+timing+of+human+behavioral+rhythms&amp;rft.volume=72&amp;rft.issue=3&amp;rft.pages=324-34&amp;rft.date=2012-09&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3464954%23id-name%3DPMC&amp;rft_id=info%3Apmid%2F23034908&amp;rft_id=info%3Adoi%2F10.1002%2Fana.23636&amp;rft.aulast=Lim&amp;rft.aufirst=AS&amp;rft.au=Chang%2C+AM&amp;rft.au=Shulman%2C+JM&amp;rft.au=Raj%2C+T&amp;rft.au=Chibnik%2C+LB&amp;rft.au=Cain%2C+SW&amp;rft.au=Rothamel%2C+K&amp;rft.au=Benoist%2C+C&amp;rft.au=Myers%2C+AJ&amp;rft.au=Czeisler%2C+CA&amp;rft.au=Buchman%2C+AS&amp;rft.au=Bennett%2C+DA&amp;rft.au=Duffy%2C+JF&amp;rft.au=Saper%2C+CB&amp;rft.au=De+Jager%2C+PL&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3464954&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid17051316-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid17051316_10-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCarpenvon_SchantzSmitsSkene2006" class="citation journal cs1">Carpen JD, von Schantz M, Smits M, Skene DJ, Archer SN (2006). <a rel="nofollow" class="external text" href="https://doi.org/10.1007%2Fs10038-006-0060-y">"A silent polymorphism in the PER1 gene associates with extreme diurnal preference in humans"</a>. <i>J. Hum. Genet</i>. <b>51</b> (12): 1122–25. <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/10.1007%2Fs10038-006-0060-y">10.1007/s10038-006-0060-y</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/17051316">17051316</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=J.+Hum.+Genet.&amp;rft.atitle=A+silent+polymorphism+in+the+PER1+gene+associates+with+extreme+diurnal+preference+in+humans&amp;rft.volume=51&amp;rft.issue=12&amp;rft.pages=1122-25&amp;rft.date=2006&amp;rft_id=info%3Adoi%2F10.1007%2Fs10038-006-0060-y&amp;rft_id=info%3Apmid%2F17051316&amp;rft.aulast=Carpen&amp;rft.aufirst=JD&amp;rft.au=von+Schantz%2C+M&amp;rft.au=Smits%2C+M&amp;rft.au=Skene%2C+DJ&amp;rft.au=Archer%2C+SN&amp;rft_id=https%3A%2F%2Fdoi.org%2F10.1007%252Fs10038-006-0060-y&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid11895480-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid11895480_11-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFShigeyoshiMeyer-BernsteinYagitaFu2002" class="citation journal cs1">Shigeyoshi Y, Meyer-Bernstein E, Yagita K, Fu W, Chen Y, Takumi T, Schotland P, Sehgal A, Okamura H (February 2002). "Restoration of circadian behavioural rhythms in a period null Drosophila mutant (per01) by mammalian period homologues mPer1 and mPer2". <i>Genes Cells</i>. <b>7</b> (2): 163–71. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1046%2Fj.1356-9597.2001.00503.x">10.1046/j.1356-9597.2001.00503.x</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/11895480">11895480</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:8312368">8312368</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Genes+Cells&amp;rft.atitle=Restoration+of+circadian+behavioural+rhythms+in+a+period+null+Drosophila+mutant+%28per01%29+by+mammalian+period+homologues+mPer1+and+mPer2&amp;rft.volume=7&amp;rft.issue=2&amp;rft.pages=163-71&amp;rft.date=2002-02&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A8312368%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F11895480&amp;rft_id=info%3Adoi%2F10.1046%2Fj.1356-9597.2001.00503.x&amp;rft.aulast=Shigeyoshi&amp;rft.aufirst=Y&amp;rft.au=Meyer-Bernstein%2C+E&amp;rft.au=Yagita%2C+K&amp;rft.au=Fu%2C+W&amp;rft.au=Chen%2C+Y&amp;rft.au=Takumi%2C+T&amp;rft.au=Schotland%2C+P&amp;rft.au=Sehgal%2C+A&amp;rft.au=Okamura%2C+H&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid22891330-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid22891330_12-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPendergastOdaNiswenderYamazaki2012" class="citation journal cs1">Pendergast JS, Oda GA, Niswender KD, Yamazaki S (August 2012). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3435193">"Period determination in the food-entrainable and methamphetamine-sensitive circadian oscillator(s)"</a>. <i>Proc. Natl. Acad. Sci. U.S.A</i>. <b>109</b> (35): 14218–23. <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/2012PNAS..10914218P">2012PNAS..10914218P</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.1206213109">10.1073/pnas.1206213109</a></span>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a>&#160;<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3435193">3435193</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/22891330">22891330</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Proc.+Natl.+Acad.+Sci.+U.S.A.&amp;rft.atitle=Period+determination+in+the+food-entrainable+and+methamphetamine-sensitive+circadian+oscillator%28s%29&amp;rft.volume=109&amp;rft.issue=35&amp;rft.pages=14218-23&amp;rft.date=2012-08&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3435193%23id-name%3DPMC&amp;rft_id=info%3Apmid%2F22891330&amp;rft_id=info%3Adoi%2F10.1073%2Fpnas.1206213109&amp;rft_id=info%3Abibcode%2F2012PNAS..10914218P&amp;rft.aulast=Pendergast&amp;rft.aufirst=JS&amp;rft.au=Oda%2C+GA&amp;rft.au=Niswender%2C+KD&amp;rft.au=Yamazaki%2C+S&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3435193&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-Zheng_2001-13"><span class="mw-cite-backlink">^ <a href="#cite_ref-Zheng_2001_13-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Zheng_2001_13-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFZhengAlbrechtKaasikSage2001" class="citation journal cs1">Zheng B, Albrecht U, Kaasik K, Sage M, Lu W, Vaishnav S, Li Q, Sun ZS, Eichele G, Bradley A, Lee CC (June 2001). <a rel="nofollow" class="external text" href="https://doi.org/10.1016%2FS0092-8674%2801%2900380-4">"Nonredundant roles of the mPer1 and mPer2 genes in the mammalian circadian clock"</a>. <i>Cell</i>. <b>105</b> (5): 683–94. <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/10.1016%2FS0092-8674%2801%2900380-4">10.1016/S0092-8674(01)00380-4</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/11389837">11389837</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:17602272">17602272</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Cell&amp;rft.atitle=Nonredundant+roles+of+the+mPer1+and+mPer2+genes+in+the+mammalian+circadian+clock&amp;rft.volume=105&amp;rft.issue=5&amp;rft.pages=683-94&amp;rft.date=2001-06&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A17602272%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F11389837&amp;rft_id=info%3Adoi%2F10.1016%2FS0092-8674%2801%2900380-4&amp;rft.aulast=Zheng&amp;rft.aufirst=B&amp;rft.au=Albrecht%2C+U&amp;rft.au=Kaasik%2C+K&amp;rft.au=Sage%2C+M&amp;rft.au=Lu%2C+W&amp;rft.au=Vaishnav%2C+S&amp;rft.au=Li%2C+Q&amp;rft.au=Sun%2C+ZS&amp;rft.au=Eichele%2C+G&amp;rft.au=Bradley%2C+A&amp;rft.au=Lee%2C+CC&amp;rft_id=https%3A%2F%2Fdoi.org%2F10.1016%252FS0092-8674%252801%252900380-4&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid11044582-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid11044582_14-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMiyakeSumiYanTakekida2000" class="citation journal cs1">Miyake S, Sumi Y, Yan L, Takekida S, Fukuyama T, Ishida Y, Yamaguchi S, Yagita K, Okamura H (November 2000). "Phase-dependent responses of Per1 and Per2 genes to a light-stimulus in the suprachiasmatic nucleus of the rat". <i>Neurosci. Lett</i>. <b>294</b> (1): 41–44. <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%2FS0304-3940%2800%2901545-7">10.1016/S0304-3940(00)01545-7</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/11044582">11044582</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:6241393">6241393</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Neurosci.+Lett.&amp;rft.atitle=Phase-dependent+responses+of+Per1+and+Per2+genes+to+a+light-stimulus+in+the+suprachiasmatic+nucleus+of+the+rat&amp;rft.volume=294&amp;rft.issue=1&amp;rft.pages=41-44&amp;rft.date=2000-11&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A6241393%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F11044582&amp;rft_id=info%3Adoi%2F10.1016%2FS0304-3940%2800%2901545-7&amp;rft.aulast=Miyake&amp;rft.aufirst=S&amp;rft.au=Sumi%2C+Y&amp;rft.au=Yan%2C+L&amp;rft.au=Takekida%2C+S&amp;rft.au=Fukuyama%2C+T&amp;rft.au=Ishida%2C+Y&amp;rft.au=Yamaguchi%2C+S&amp;rft.au=Yagita%2C+K&amp;rft.au=Okamura%2C+H&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid20693532-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid20693532_15-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFYamajukuShibataKitazawaKatakura2010" class="citation journal cs1">Yamajuku D, Shibata Y, Kitazawa M, Katakura T, Urata H, Kojima T, Nakata O, Hashimoto S (December 2010). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3001056">"Identification of functional clock-controlled elements involved in differential timing of Per1 and Per2 transcription"</a>. <i>Nucleic Acids Res</i>. <b>38</b> (22): 7964–73. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1093%2Fnar%2Fgkq678">10.1093/nar/gkq678</a>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a>&#160;<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3001056">3001056</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/20693532">20693532</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Nucleic+Acids+Res.&amp;rft.atitle=Identification+of+functional+clock-controlled+elements+involved+in+differential+timing+of+Per1+and+Per2+transcription&amp;rft.volume=38&amp;rft.issue=22&amp;rft.pages=7964-73&amp;rft.date=2010-12&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3001056%23id-name%3DPMC&amp;rft_id=info%3Apmid%2F20693532&amp;rft_id=info%3Adoi%2F10.1093%2Fnar%2Fgkq678&amp;rft.aulast=Yamajuku&amp;rft.aufirst=D&amp;rft.au=Shibata%2C+Y&amp;rft.au=Kitazawa%2C+M&amp;rft.au=Katakura%2C+T&amp;rft.au=Urata%2C+H&amp;rft.au=Kojima%2C+T&amp;rft.au=Nakata%2C+O&amp;rft.au=Hashimoto%2C+S&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3001056&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid10790862-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid10790862_16-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKeeslerCamachoGuoVirshup2000" class="citation journal cs1">Keesler GA, Camacho F, Guo Y, Virshup D, Mondadori C, Yao Z (April 2000). "Phosphorylation and destabilization of human period I clock protein by human casein kinase I epsilon". <i>NeuroReport</i>. <b>11</b> (5): 951–55. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1097%2F00001756-200004070-00011">10.1097/00001756-200004070-00011</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/10790862">10790862</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:30970694">30970694</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=NeuroReport&amp;rft.atitle=Phosphorylation+and+destabilization+of+human+period+I+clock+protein+by+human+casein+kinase+I+epsilon&amp;rft.volume=11&amp;rft.issue=5&amp;rft.pages=951-55&amp;rft.date=2000-04&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A30970694%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F10790862&amp;rft_id=info%3Adoi%2F10.1097%2F00001756-200004070-00011&amp;rft.aulast=Keesler&amp;rft.aufirst=GA&amp;rft.au=Camacho%2C+F&amp;rft.au=Guo%2C+Y&amp;rft.au=Virshup%2C+D&amp;rft.au=Mondadori%2C+C&amp;rft.au=Yao%2C+Z&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid21930935-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid21930935_17-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLeeChenKimEtchegaray2011" class="citation journal cs1">Lee HM, Chen R, Kim H, Etchegaray JP, Weaver DR, Lee C (September 2011). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3182690">"The period of the circadian oscillator is primarily determined by the balance between casein kinase 1 and protein phosphatase 1"</a>. <i>Proc. Natl. Acad. Sci. U.S.A</i>. <b>108</b> (39): 16451–56. <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/2011PNAS..10816451L">2011PNAS..10816451L</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.1107178108">10.1073/pnas.1107178108</a></span>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a>&#160;<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3182690">3182690</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/21930935">21930935</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Proc.+Natl.+Acad.+Sci.+U.S.A.&amp;rft.atitle=The+period+of+the+circadian+oscillator+is+primarily+determined+by+the+balance+between+casein+kinase+1+and+protein+phosphatase+1&amp;rft.volume=108&amp;rft.issue=39&amp;rft.pages=16451-56&amp;rft.date=2011-09&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3182690%23id-name%3DPMC&amp;rft_id=info%3Apmid%2F21930935&amp;rft_id=info%3Adoi%2F10.1073%2Fpnas.1107178108&amp;rft_id=info%3Abibcode%2F2011PNAS..10816451L&amp;rft.aulast=Lee&amp;rft.aufirst=HM&amp;rft.au=Chen%2C+R&amp;rft.au=Kim%2C+H&amp;rft.au=Etchegaray%2C+JP&amp;rft.au=Weaver%2C+DR&amp;rft.au=Lee%2C+C&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3182690&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid11591712-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid11591712_18-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFVielhaberDurickaUllmanVirshup2001" class="citation journal cs1">Vielhaber EL, Duricka D, Ullman KS, Virshup DM (December 2001). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1513547">"Nuclear export of mammalian PERIOD proteins"</a>. <i>J. Biol. Chem</i>. <b>276</b> (49): 45921–27. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1074%2Fjbc.M107726200">10.1074/jbc.M107726200</a></span>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a>&#160;<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1513547">1513547</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/11591712">11591712</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=J.+Biol.+Chem.&amp;rft.atitle=Nuclear+export+of+mammalian+PERIOD+proteins&amp;rft.volume=276&amp;rft.issue=49&amp;rft.pages=45921-27&amp;rft.date=2001-12&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC1513547%23id-name%3DPMC&amp;rft_id=info%3Apmid%2F11591712&amp;rft_id=info%3Adoi%2F10.1074%2Fjbc.M107726200&amp;rft.aulast=Vielhaber&amp;rft.aufirst=EL&amp;rft.au=Duricka%2C+D&amp;rft.au=Ullman%2C+KS&amp;rft.au=Virshup%2C+DM&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC1513547&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid16987893-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid16987893_19-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKoTakahashi2006" class="citation journal cs1 cs1-prop-long-vol">Ko CH, Takahashi JS (October 2006). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3762864">"Molecular components of the mammalian circadian clock"</a>. <i>Hum. Mol. Genet</i>. 15 Spec No 2: R271–77. <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/10.1093%2Fhmg%2Fddl207">10.1093/hmg/ddl207</a></span>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a>&#160;<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3762864">3762864</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/16987893">16987893</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Hum.+Mol.+Genet.&amp;rft.atitle=Molecular+components+of+the+mammalian+circadian+clock&amp;rft.volume=15+Spec+No+2&amp;rft.pages=R271-77&amp;rft.date=2006-10&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3762864%23id-name%3DPMC&amp;rft_id=info%3Apmid%2F16987893&amp;rft_id=info%3Adoi%2F10.1093%2Fhmg%2Fddl207&amp;rft.aulast=Ko&amp;rft.aufirst=CH&amp;rft.au=Takahashi%2C+JS&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC3762864&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid11395012-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid11395012_20-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBaeJinMaywoodHastings2001" class="citation journal cs1">Bae K, Jin X, Maywood ES, Hastings MH, Reppert SM, Weaver DR (May 2001). <a rel="nofollow" class="external text" href="https://doi.org/10.1016%2FS0896-6273%2801%2900302-6">"Differential functions of mPer1, mPer2, and mPer3 in the SCN circadian clock"</a>. <i>Neuron</i>. <b>30</b> (2): 525–36. <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/10.1016%2FS0896-6273%2801%2900302-6">10.1016/S0896-6273(01)00302-6</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/11395012">11395012</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:219582">219582</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Neuron&amp;rft.atitle=Differential+functions+of+mPer1%2C+mPer2%2C+and+mPer3+in+the+SCN+circadian+clock&amp;rft.volume=30&amp;rft.issue=2&amp;rft.pages=525-36&amp;rft.date=2001-05&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A219582%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F11395012&amp;rft_id=info%3Adoi%2F10.1016%2FS0896-6273%2801%2900302-6&amp;rft.aulast=Bae&amp;rft.aufirst=K&amp;rft.au=Jin%2C+X&amp;rft.au=Maywood%2C+ES&amp;rft.au=Hastings%2C+MH&amp;rft.au=Reppert%2C+SM&amp;rft.au=Weaver%2C+DR&amp;rft_id=https%3A%2F%2Fdoi.org%2F10.1016%252FS0896-6273%252801%252900302-6&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid19916834-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid19916834_21-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFYangWoodAnsellQuiton2009" class="citation journal cs1">Yang X, Wood PA, Ansell CM, Quiton DF, Oh EY, Du-Quiton J, Hrushesky WJ (October 2009). "The circadian clock gene Per1 suppresses cancer cell proliferation and tumor growth at specific times of day". <i>Chronobiol. Int</i>. <b>26</b> (7): 1323–39. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.3109%2F07420520903431301">10.3109/07420520903431301</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/19916834">19916834</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:474970">474970</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Chronobiol.+Int.&amp;rft.atitle=The+circadian+clock+gene+Per1+suppresses+cancer+cell+proliferation+and+tumor+growth+at+specific+times+of+day&amp;rft.volume=26&amp;rft.issue=7&amp;rft.pages=1323-39&amp;rft.date=2009-10&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A474970%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F19916834&amp;rft_id=info%3Adoi%2F10.3109%2F07420520903431301&amp;rft.aulast=Yang&amp;rft.aufirst=X&amp;rft.au=Wood%2C+PA&amp;rft.au=Ansell%2C+CM&amp;rft.au=Quiton%2C+DF&amp;rft.au=Oh%2C+EY&amp;rft.au=Du-Quiton%2C+J&amp;rft.au=Hrushesky%2C+WJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid15361830-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid15361830_22-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBuscemiPeregoCareniniNakanishi2004" class="citation journal cs1">Buscemi G, Perego P, Carenini N, Nakanishi M, Chessa L, Chen J, Khanna K, Delia D (October 2004). <a rel="nofollow" class="external text" href="https://doi.org/10.1038%2Fsj.onc.1207986">"Activation of ATM and Chk2 kinases in relation to the amount of DNA strand breaks"</a>. <i>Oncogene</i>. <b>23</b> (46): 7691–700. <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/10.1038%2Fsj.onc.1207986">10.1038/sj.onc.1207986</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/15361830">15361830</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Oncogene&amp;rft.atitle=Activation+of+ATM+and+Chk2+kinases+in+relation+to+the+amount+of+DNA+strand+breaks&amp;rft.volume=23&amp;rft.issue=46&amp;rft.pages=7691-700&amp;rft.date=2004-10&amp;rft_id=info%3Adoi%2F10.1038%2Fsj.onc.1207986&amp;rft_id=info%3Apmid%2F15361830&amp;rft.aulast=Buscemi&amp;rft.aufirst=G&amp;rft.au=Perego%2C+P&amp;rft.au=Carenini%2C+N&amp;rft.au=Nakanishi%2C+M&amp;rft.au=Chessa%2C+L&amp;rft.au=Chen%2C+J&amp;rft.au=Khanna%2C+K&amp;rft.au=Delia%2C+D&amp;rft_id=https%3A%2F%2Fdoi.org%2F10.1038%252Fsj.onc.1207986&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid16678109-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid16678109_23-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGeryKomatsuBaldjyanYu2006" class="citation journal cs1">Gery S, Komatsu N, Baldjyan L, Yu A, Koo D, Koeffler HP (May 2006). <a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.molcel.2006.03.038">"The circadian gene per1 plays an important role in cell growth and DNA damage control in human cancer cells"</a>. <i>Mol. Cell</i>. <b>22</b> (3): 375–82. <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/10.1016%2Fj.molcel.2006.03.038">10.1016/j.molcel.2006.03.038</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/16678109">16678109</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Mol.+Cell&amp;rft.atitle=The+circadian+gene+per1+plays+an+important+role+in+cell+growth+and+DNA+damage+control+in+human+cancer+cells&amp;rft.volume=22&amp;rft.issue=3&amp;rft.pages=375-82&amp;rft.date=2006-05&amp;rft_id=info%3Adoi%2F10.1016%2Fj.molcel.2006.03.038&amp;rft_id=info%3Apmid%2F16678109&amp;rft.aulast=Gery&amp;rft.aufirst=S&amp;rft.au=Komatsu%2C+N&amp;rft.au=Baldjyan%2C+L&amp;rft.au=Yu%2C+A&amp;rft.au=Koo%2C+D&amp;rft.au=Koeffler%2C+HP&amp;rft_id=https%3A%2F%2Fdoi.org%2F10.1016%252Fj.molcel.2006.03.038&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-24">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.ebi.ac.uk/gxa/gene/ENSCAFG00000016984">"PER1"</a>. <i>Expression Atlas</i>. European Molecular Biology Laboratory. 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">13 Apr</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Expression+Atlas&amp;rft.atitle=PER1&amp;rft.date=2013&amp;rft_id=http%3A%2F%2Fwww.ebi.ac.uk%2Fgxa%2Fgene%2FENSCAFG00000016984&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-25"><span class="mw-cite-backlink"><b><a href="#cite_ref-25">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/gene/5187">"PER1"</a>. <i>NCBI</i>. 2015<span class="reference-accessdate">. Retrieved <span class="nowrap">18 Jan</span> 2015</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=NCBI&amp;rft.atitle=PER1&amp;rft.date=2015&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fgene%2F5187&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" class="Z3988"></span></span> </li> <li id="cite_note-pmid9428527-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid9428527_26-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAlbrechtSunEicheleLee1997" class="citation journal cs1">Albrecht U, Sun ZS, Eichele G, Lee CC (December 1997). <a rel="nofollow" class="external text" href="https://doi.org/10.1016%2FS0092-8674%2800%2980495-X">"A differential response of two putative mammalian circadian regulators, mper1 and mper2, to light"</a>. <i>Cell</i>. <b>91</b> (7): 1055–64. <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/10.1016%2FS0092-8674%2800%2980495-X">10.1016/S0092-8674(00)80495-X</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/9428527">9428527</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:16049851">16049851</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Cell&amp;rft.atitle=A+differential+response+of+two+putative+mammalian+circadian+regulators%2C+mper1+and+mper2%2C+to+light&amp;rft.volume=91&amp;rft.issue=7&amp;rft.pages=1055-64&amp;rft.date=1997-12&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A16049851%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F9428527&amp;rft_id=info%3Adoi%2F10.1016%2FS0092-8674%2800%2980495-X&amp;rft.aulast=Albrecht&amp;rft.aufirst=U&amp;rft.au=Sun%2C+ZS&amp;rft.au=Eichele%2C+G&amp;rft.au=Lee%2C+CC&amp;rft_id=https%3A%2F%2Fdoi.org%2F10.1016%252FS0092-8674%252800%252980495-X&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APeriod+circadian+protein+homolog+1" 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=Period_circadian_protein_homolog_1&amp;action=edit&amp;section=11" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://meshb.nlm.nih.gov/record/ui?name=PER1+protein%2C+human">PER1+protein,+human</a> at the U.S. National Library of Medicine <a href="/wiki/Medical_Subject_Headings" title="Medical Subject Headings">Medical Subject Headings</a> (MeSH)</li> <li><a rel="nofollow" class="external text" href="http://www.ensembl.org/Homo_sapiens/Location/View?db=core;g=ENSG00000179094;r=17:8043790-8059824">More information on PER1 introns and exons</a></li> <li><a rel="nofollow" class="external text" href="http://www.ensembl.org/Homo_sapiens/Transcript/Summary?db=core;g=ENSG00000179094;r=17:8043790-8059824;t=ENST00000581082">Splice variants of PER1</a></li></ul> <p><i>This article incorporates text from the <a href="/wiki/United_States_National_Library_of_Medicine" title="United States National Library of Medicine">United States National Library of Medicine</a>, which is in the <a href="/wiki/Public_domain" title="Public domain">public domain</a>.</i> </p> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist 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mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background:#e7dcc3;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Transcription_factors_and_intracellular_receptors" title="Template:Transcription factors and intracellular receptors"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Transcription_factors_and_intracellular_receptors" title="Template talk:Transcription factors and intracellular receptors"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Transcription_factors_and_intracellular_receptors" title="Special:EditPage/Template:Transcription factors and intracellular receptors"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Transcription_factors_and_intracellular_receptors" style="font-size:114%;margin:0 4em"><a href="/wiki/Transcription_factor" title="Transcription factor">Transcription factors</a> and <a href="/wiki/Intracellular_receptor" title="Intracellular receptor">intracellular 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 uncollapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background-color: AntiqueWhite;"><div id="(1)_Basic_domains" style="font-size:114%;margin:0 4em"><i>(1) Basic domains</i></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent;"><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:16em;text-align:left;"><i>(1.1) Basic</i> <a href="/wiki/Leucine_zipper" title="Leucine zipper">leucine zipper</a> (<a href="/wiki/BZIP_domain" title="BZIP domain">bZIP</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Activating_transcription_factor" title="Activating transcription factor">Activating transcription factor</a> <ul><li><a href="/wiki/Apoptosis-antagonizing_transcription_factor" class="mw-redirect" title="Apoptosis-antagonizing transcription factor">AATF</a></li> <li><a href="/wiki/ATF1" title="ATF1">1</a></li> <li><a href="/wiki/Activating_transcription_factor_2" title="Activating transcription factor 2">2</a></li> <li><a href="/wiki/ATF3" title="ATF3">3</a></li> <li><a href="/wiki/ATF4" title="ATF4">4</a></li> <li><a href="/wiki/ATF5" title="ATF5">5</a></li> <li><a href="/wiki/ATF6" title="ATF6">6</a></li> <li><a href="/wiki/ATF7" title="ATF7">7</a></li></ul></li> <li><a href="/wiki/AP-1_transcription_factor" title="AP-1 transcription factor">AP-1</a> <ul><li><a href="/wiki/C-Fos" class="mw-redirect" title="C-Fos">c-Fos</a></li> <li><a href="/wiki/FOSB" title="FOSB">FOSB</a></li> <li><a href="/wiki/FOSL1" title="FOSL1">FOSL1</a></li> <li><a href="/wiki/FOSL2" title="FOSL2">FOSL2</a></li> <li><a href="/wiki/Jun_dimerization_protein" title="Jun dimerization protein">JDP2</a></li> <li><a href="/wiki/C-jun" class="mw-redirect" title="C-jun">c-Jun</a></li> <li><a href="/wiki/JUNB" title="JUNB">JUNB</a></li> <li><a href="/wiki/JunD" title="JunD">JunD</a></li></ul></li> <li><i>BACH</i> <ul><li><a href="/wiki/BACH1" title="BACH1">1</a></li> <li><a href="/wiki/BACH2" title="BACH2">2</a></li></ul></li> <li><a href="/wiki/BATF_(gene)" title="BATF (gene)">BATF</a></li> <li><a href="/wiki/BLZF1" title="BLZF1">BLZF1</a></li> <li><a href="/wiki/Ccaat-enhancer-binding_proteins" class="mw-redirect" title="Ccaat-enhancer-binding proteins">C/EBP</a> <ul><li><a href="/wiki/CEBPA" title="CEBPA">α</a></li> <li><a href="/wiki/CEBPB" title="CEBPB">β</a></li> <li><a href="/wiki/CEBPG" title="CEBPG">γ</a></li> <li><a href="/wiki/CEBPD" title="CEBPD">δ</a></li> <li><a href="/wiki/CEBPE" title="CEBPE">ε</a></li> <li><a href="/wiki/CCAAT/enhancer_binding_protein_zeta" title="CCAAT/enhancer binding protein zeta">ζ</a></li></ul></li> <li><a href="/wiki/CREB" title="CREB">CREB</a> <ul><li><a href="/wiki/CREB1" title="CREB1">1</a></li> <li><a href="/wiki/CREB3" title="CREB3">3</a></li> <li><a href="/wiki/CREBL1" title="CREBL1">L1</a></li></ul></li> <li><a href="/wiki/CAMP_responsive_element_modulator" title="CAMP responsive element modulator">CREM</a></li> <li><a href="/wiki/DBP_(gene)" title="DBP (gene)">DBP</a></li> <li><a href="/wiki/DNA_damage-inducible_transcript_3" title="DNA damage-inducible transcript 3">DDIT3</a></li> <li><a href="/wiki/GABPA" title="GABPA">GABPA</a></li> <li><a href="/wiki/Gcn4" title="Gcn4">GCN4</a></li> <li><a href="/wiki/HLF_(gene)" title="HLF (gene)">HLF</a></li> <li><a href="/wiki/MAF_(gene)" title="MAF (gene)">MAF</a> <ul><li><a href="/wiki/MAFB_(gene)" title="MAFB (gene)">B</a></li> <li><a href="/wiki/MAFF_(gene)" title="MAFF (gene)">F</a></li> <li><a href="/wiki/MAFG" title="MAFG">G</a></li> <li><a href="/wiki/MAFK" title="MAFK">K</a></li></ul></li> <li><i>NFE</i> <ul><li><a href="/wiki/NFE2" title="NFE2">2</a></li> <li><a href="/wiki/NFE2L1" title="NFE2L1">L1</a></li> <li><a href="/wiki/NFE2L2" title="NFE2L2">L2</a></li> <li><a href="/wiki/NFE2L3" title="NFE2L3">L3</a></li></ul></li> <li><a href="/wiki/NFIL3" title="NFIL3">NFIL3</a></li> <li><a href="/wiki/NRL_(gene)" title="NRL (gene)">NRL</a></li> <li><i>NRF</i> <ul><li><a href="/wiki/NRF1" title="NRF1">1</a></li> <li><a href="/wiki/NFE2L2" title="NFE2L2">2</a></li> <li><a href="/wiki/NFE2L3" title="NFE2L3">3</a></li></ul></li> <li><a href="/wiki/XBP1" title="XBP1">XBP1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(1.2) Basic helix-loop-helix</i> (<a href="/wiki/Basic_helix-loop-helix" class="mw-redirect" title="Basic helix-loop-helix">bHLH</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:1%"><span class="nobold">Group A</span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Achaete-scute_complex" title="Achaete-scute complex">AS-C</a> <ul><li><a href="/wiki/ASCL1" title="ASCL1">ASCL1</a></li> <li><a href="/wiki/ASCL2" title="ASCL2">ASCL2</a></li></ul></li> <li><a href="/wiki/ATOH1" title="ATOH1">ATOH1</a></li> <li><i>HAND</i> <ul><li><a href="/wiki/HAND1" title="HAND1">1</a></li> <li><a href="/wiki/HAND2" title="HAND2">2</a></li></ul></li> <li><a href="/wiki/MESP2" title="MESP2">MESP2</a></li> <li><a href="/wiki/Myogenic_regulatory_factors" title="Myogenic regulatory factors">Myogenic regulatory factors</a> <ul><li><a href="/wiki/MyoD" title="MyoD">MyoD</a></li> <li><a href="/wiki/Myogenin" title="Myogenin">Myogenin</a></li> <li><a href="/wiki/MYF5" title="MYF5">MYF5</a></li> <li><a href="/wiki/MYF6" title="MYF6">MYF6</a></li></ul></li> <li><a href="/wiki/NeuroD" title="NeuroD">NeuroD</a> <ul><li><a href="/wiki/NEUROD1" title="NEUROD1">1</a></li> <li><a href="/wiki/NEUROD2" title="NEUROD2">2</a></li></ul></li> <li><a href="/wiki/Neurogenins" title="Neurogenins">Neurogenins</a> <ul><li><a href="/wiki/NEUROG1" class="mw-redirect" title="NEUROG1">1</a></li> <li><a href="/wiki/NEUROG2" class="mw-redirect" title="NEUROG2">2</a></li> <li><a href="/wiki/NEUROG3" class="mw-redirect" title="NEUROG3">3</a></li></ul></li> <li><i>OLIG</i> <ul><li><a href="/wiki/OLIG1" title="OLIG1">1</a></li> <li><a href="/wiki/OLIG2" title="OLIG2">2</a></li></ul></li> <li><i>Paraxis</i> <ul><li><a href="/wiki/TCF15" title="TCF15">TCF15</a></li> <li><a href="/wiki/Scleraxis" title="Scleraxis">Scleraxis</a></li></ul></li> <li><i>SLC</i> <ul><li><a href="/wiki/LYL1" title="LYL1">LYL1</a></li> <li><i>TAL</i> <ul><li><a href="/wiki/TAL1" title="TAL1">1</a></li> <li><a href="/wiki/TAL2" title="TAL2">2</a></li></ul></li></ul></li> <li><a href="/wiki/Twist_transcription_factor" class="mw-redirect" title="Twist transcription factor">Twist</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold">Group B</span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/FIGLA" title="FIGLA">FIGLA</a></li> <li><a href="/wiki/Myc" title="Myc">Myc</a> <ul><li><a href="/wiki/MYC" title="MYC">c-Myc</a></li> <li><a href="/wiki/MYCL" title="MYCL">l-Myc</a></li> <li><a href="/wiki/N-Myc" title="N-Myc">n-Myc</a></li></ul></li> <li><a href="/wiki/MXD4" title="MXD4">MXD4</a></li> <li><a href="/wiki/TCF4" title="TCF4">TCF4</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold">Group C<br />bHLH-<a href="/wiki/PAS_domain" title="PAS domain">PAS</a></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aryl_hydrocarbon_receptor" title="Aryl hydrocarbon receptor">AhR</a></li> <li><a href="/wiki/Aryl_hydrocarbon_receptor_repressor" title="Aryl hydrocarbon receptor repressor">AHRR</a></li> <li><a href="/wiki/Aryl_hydrocarbon_receptor_nuclear_translocator" title="Aryl hydrocarbon receptor nuclear translocator">ARNT</a> <ul><li><a href="/wiki/ARNTL" class="mw-redirect" title="ARNTL">ARNTL</a></li> <li><a href="/wiki/ARNTL2" title="ARNTL2">ARNTL2</a></li></ul></li> <li><a href="/wiki/CLOCK" title="CLOCK">CLOCK</a></li> <li><a href="/wiki/Hypoxia-inducible_factor" title="Hypoxia-inducible factor">HIF</a> <ul><li><a href="/wiki/HIF1A" title="HIF1A">1A</a></li> <li><a href="/wiki/EPAS1" title="EPAS1">EPAS1</a></li> <li><a href="/wiki/HIF3A" title="HIF3A">3A</a></li></ul></li> <li>NPAS <ul><li><a href="/wiki/NPAS1" title="NPAS1">1</a></li> <li><a href="/wiki/NPAS2" title="NPAS2">2</a></li> <li><a href="/wiki/NPAS3" title="NPAS3">3</a></li></ul></li> <li><i>PER</i> <ul><li><a href="/wiki/PER1" class="mw-redirect" title="PER1">1</a></li> <li><a href="/wiki/PER2" title="PER2">2</a></li> <li><a href="/wiki/PER3" title="PER3">3</a></li> <li><a href="/wiki/Period_(gene)" title="Period (gene)">Period</a></li></ul></li> <li><i>SIM</i> <ul><li><a href="/wiki/SIM1" title="SIM1">1</a></li> <li><a href="/wiki/SIM2" title="SIM2">2</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold">Group D</span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i>BHLH</i> <ul><li><a href="/wiki/BHLHB2" title="BHLHB2">2</a></li> <li><a href="/wiki/BHLHB3" class="mw-redirect" title="BHLHB3">3</a></li> <li><a href="/wiki/BHLHA9" title="BHLHA9">9</a></li></ul></li> <li><a href="/wiki/Pho4" title="Pho4">Pho4</a></li> <li><i>ID</i> <ul><li><a href="/wiki/ID1" title="ID1">1</a></li> <li><a href="/wiki/ID2" title="ID2">2</a></li> <li><a href="/wiki/ID3_(gene)" title="ID3 (gene)">3</a></li> <li><a href="/wiki/ID4" title="ID4">4</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold">Group E</span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i>HES</i> <ul><li><a href="/wiki/HES1" title="HES1">1</a></li> <li><a href="/wiki/Hes_family_bhlh_transcription_factor_2" title="Hes family bhlh transcription factor 2">2</a></li> <li><a href="/wiki/HES3" title="HES3">3</a></li> <li><a href="/wiki/HES4" title="HES4">4</a></li> <li><a href="/wiki/HES5" title="HES5">5</a></li> <li><a href="/wiki/HES6" title="HES6">6</a></li> <li><a href="/wiki/HES7_gene" title="HES7 gene">7</a></li></ul></li> <li><i>HEY</i> <ul><li><a href="/wiki/HEY1" title="HEY1">1</a></li> <li><a href="/wiki/HEY2" title="HEY2">2</a></li> <li><a href="/wiki/HEYL" title="HEYL">L</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold">Group F<br />bHLH-COE</span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/EBF1" title="EBF1">EBF1</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(1.3)</i> <a href="/wiki/Basic_helix-loop-helix_leucine_zipper_transcription_factors" title="Basic helix-loop-helix leucine zipper transcription factors">bHLH-ZIP</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/TFAP4" title="TFAP4">AP-4</a></li> <li><a href="/wiki/MAX_(gene)" title="MAX (gene)">MAX</a> <ul><li><a href="/wiki/MXD1" title="MXD1">MXD1</a></li> <li><a href="/wiki/MXD3" title="MXD3">MXD3</a></li></ul></li> <li><a href="/wiki/Microphthalmia-associated_transcription_factor" title="Microphthalmia-associated transcription factor">MITF</a></li> <li><a href="/wiki/MNT_(gene)" title="MNT (gene)">MNT</a></li> <li><a href="/wiki/MLX_(gene)" title="MLX (gene)">MLX</a></li> <li><a href="/wiki/Carbohydrate-responsive_element-binding_protein" title="Carbohydrate-responsive element-binding protein">MLXIPL</a></li> <li><a href="/wiki/MXI1" title="MXI1">MXI1</a></li> <li><a href="/wiki/Myc" title="Myc">Myc</a></li> <li><a href="/wiki/Sterol_regulatory_element-binding_protein" title="Sterol regulatory element-binding protein">SREBP</a> <ul><li><a href="/wiki/SREBF1" class="mw-redirect" title="SREBF1">1</a></li> <li><a href="/wiki/SREBF2" class="mw-redirect" title="SREBF2">2</a></li></ul></li> <li><a href="/wiki/USF1" title="USF1">USF1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(1.4) NF-1</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/Nuclear_factor_I" title="Nuclear factor I">NFI</a> <ul><li><a href="/wiki/NFIA" title="NFIA">A</a></li> <li><a href="/wiki/NFIB_(gene)" title="NFIB (gene)">B</a></li> <li><a href="/wiki/NFIC_(gene)" title="NFIC (gene)">C</a></li> <li><a href="/wiki/NFIX" title="NFIX">X</a></li></ul></li> <li><a href="/wiki/SMAD_(protein)" title="SMAD (protein)">SMAD</a> <ul><li><a href="/wiki/R-SMAD" title="R-SMAD">R-SMAD</a> <ul><li><a href="/wiki/Mothers_against_decapentaplegic_homolog_1" title="Mothers against decapentaplegic homolog 1">1</a></li> <li><a href="/wiki/Mothers_against_decapentaplegic_homolog_2" title="Mothers against decapentaplegic homolog 2">2</a></li> <li><a href="/wiki/Mothers_against_decapentaplegic_homolog_3" title="Mothers against decapentaplegic homolog 3">3</a></li> <li><a href="/wiki/Mothers_against_decapentaplegic_homolog_5" title="Mothers against decapentaplegic homolog 5">5</a></li> <li><a href="/wiki/Mothers_against_decapentaplegic_homolog_9" title="Mothers against decapentaplegic homolog 9">9</a></li></ul></li> <li><a href="/wiki/I-SMAD" title="I-SMAD">I-SMAD</a> <ul><li><a href="/wiki/Mothers_against_decapentaplegic_homolog_6" title="Mothers against decapentaplegic homolog 6">6</a></li> <li><a href="/wiki/Mothers_against_decapentaplegic_homolog_7" title="Mothers against decapentaplegic homolog 7">7</a></li></ul></li> <li><a href="/wiki/Mothers_against_decapentaplegic_homolog_4" title="Mothers against decapentaplegic homolog 4">4</a>)</li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(1.5) RF-X</i></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><i>RFX</i> <ul><li><a href="/wiki/RFX1" title="RFX1">1</a></li> <li><a href="/wiki/RFX2" title="RFX2">2</a></li> <li><a href="/wiki/RFX3" title="RFX3">3</a></li> <li><a href="/wiki/RFX4" title="RFX4">4</a></li> <li><a href="/wiki/RFX5" title="RFX5">5</a></li> <li><a href="/wiki/RFX6" title="RFX6">6</a></li> <li><a href="/wiki/RFXANK" title="RFXANK">ANK</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(1.6) Basic helix-span-helix (bHSH)</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/Activating_protein_2" title="Activating protein 2">AP-2</a> <ul><li><a href="/wiki/TFAP2A" title="TFAP2A">α</a></li> <li><a href="/wiki/TFAP2B" title="TFAP2B">β</a></li> <li><a href="/wiki/TFAP2C" title="TFAP2C">γ</a></li> <li><a href="/wiki/TFAP2D" title="TFAP2D">δ</a></li> <li><a href="/wiki/TFAP2E" title="TFAP2E">ε</a></li></ul></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" style="background-color: AntiqueWhite;"><div id="(2)_Zinc_finger_DNA-binding_domains" style="font-size:114%;margin:0 4em"><i>(2)</i> <a href="/wiki/Zinc_finger" title="Zinc finger">Zinc finger</a> DNA-binding domains</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent;"><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:16em;text-align:left;"><i>(2.1)</i> <a href="/wiki/Nuclear_receptor" title="Nuclear receptor">Nuclear receptor</a> <i>(Cys<sub>4</sub>)</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><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:1%"><span class="nobold"><i>subfamily 1</i></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Thyroid_hormone_receptor" title="Thyroid hormone receptor">Thyroid hormone</a> <ul><li><a href="/wiki/Thyroid_hormone_receptor_alpha" title="Thyroid hormone receptor alpha">α</a></li> <li><a href="/wiki/Thyroid_hormone_receptor_beta" title="Thyroid hormone receptor beta">β</a></li></ul></li> <li><a href="/wiki/Constitutive_androstane_receptor" title="Constitutive androstane receptor">CAR</a></li> <li><a href="/wiki/Farnesoid_X_receptor" title="Farnesoid X receptor">FXR</a></li> <li><a href="/wiki/Liver_X_receptor" title="Liver X receptor">LXR</a> <ul><li><a href="/wiki/Liver_X_receptor_alpha" title="Liver X receptor alpha">α</a></li> <li><a href="/wiki/Liver_X_receptor_beta" title="Liver X receptor beta">β</a></li></ul></li> <li><a href="/wiki/Peroxisome_proliferator-activated_receptor" title="Peroxisome proliferator-activated receptor">PPAR</a> <ul><li><a href="/wiki/Peroxisome_proliferator-activated_receptor_alpha" title="Peroxisome proliferator-activated receptor alpha">α</a></li> <li><a href="/wiki/Peroxisome_proliferator-activated_receptor_delta" title="Peroxisome proliferator-activated receptor delta">β/δ</a></li> <li><a href="/wiki/Peroxisome_proliferator-activated_receptor_gamma" title="Peroxisome proliferator-activated receptor gamma">γ</a></li></ul></li> <li><a href="/wiki/Pregnane_X_receptor" title="Pregnane X receptor">PXR</a></li> <li><a href="/wiki/Retinoic_acid_receptor" title="Retinoic acid receptor">RAR</a> <ul><li><a href="/wiki/Retinoic_acid_receptor_alpha" title="Retinoic acid receptor alpha">α</a></li> <li><a href="/wiki/Retinoic_acid_receptor_beta" title="Retinoic acid receptor beta">β</a></li> <li><a href="/wiki/Retinoic_acid_receptor_gamma" title="Retinoic acid receptor gamma">γ</a></li></ul></li> <li><a href="/wiki/RAR-related_orphan_receptor" title="RAR-related orphan receptor">ROR</a> <ul><li><a href="/wiki/RAR-related_orphan_receptor_alpha" title="RAR-related orphan receptor alpha">α</a></li> <li><a href="/wiki/RAR-related_orphan_receptor_beta" title="RAR-related orphan receptor beta">β</a></li> <li><a href="/wiki/RAR-related_orphan_receptor_gamma" title="RAR-related orphan receptor gamma">γ</a></li></ul></li> <li><a href="/wiki/Rev-ErbA" class="mw-redirect" title="Rev-ErbA">Rev-ErbA</a> <ul><li><a href="/wiki/Rev-ErbA_alpha" title="Rev-ErbA alpha">α</a></li> <li><a href="/wiki/Rev-ErbA_beta" title="Rev-ErbA beta">β</a></li></ul></li> <li><a href="/wiki/Calcitriol_receptor" class="mw-redirect" title="Calcitriol receptor">VDR</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>subfamily 2</i></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chicken_ovalbumin_upstream_promoter-transcription_factor" title="Chicken ovalbumin upstream promoter-transcription factor">COUP-TF</a> <ul><li>(<a href="/wiki/COUP-TFI" title="COUP-TFI">I</a></li> <li><a href="/wiki/COUP-TFII" title="COUP-TFII">II</a></li></ul></li> <li><a href="/wiki/V-erbA-related_gene" title="V-erbA-related gene">Ear-2</a></li> <li><a href="/wiki/Hepatocyte_nuclear_factor_4" title="Hepatocyte nuclear factor 4">HNF4</a> <ul><li><a href="/wiki/Hepatocyte_nuclear_factor_4_alpha" title="Hepatocyte nuclear factor 4 alpha">α</a></li> <li><a href="/wiki/Hepatocyte_nuclear_factor_4_gamma" title="Hepatocyte nuclear factor 4 gamma">γ</a></li></ul></li> <li><a href="/wiki/Photoreceptor_cell-specific_nuclear_receptor" title="Photoreceptor cell-specific nuclear receptor">PNR</a></li> <li><a href="/wiki/Retinoid_X_receptor" title="Retinoid X receptor">RXR</a> <ul><li><a href="/wiki/Retinoid_X_receptor_alpha" title="Retinoid X receptor alpha">α</a></li> <li><a href="/wiki/Retinoid_X_receptor_beta" title="Retinoid X receptor beta">β</a></li> <li><a href="/wiki/Retinoid_X_receptor_gamma" title="Retinoid X receptor gamma">γ</a></li></ul></li> <li><a href="/wiki/Testicular_receptor" title="Testicular receptor">Testicular receptor</a> <ul><li><a href="/wiki/Testicular_receptor_2" title="Testicular receptor 2">2</a></li> <li><a href="/wiki/Testicular_receptor_4" title="Testicular receptor 4">4</a></li></ul></li> <li><a href="/wiki/TLX" title="TLX">TLX</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>subfamily 3</i></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Steroid_hormone_receptor" title="Steroid hormone receptor">Steroid hormone</a> <ul><li><a href="/wiki/Androgen_receptor" title="Androgen receptor">Androgen</a></li> <li><a href="/wiki/Estrogen_receptor" title="Estrogen receptor">Estrogen</a> <ul><li><a href="/wiki/Estrogen_receptor_alpha" title="Estrogen receptor alpha">α</a></li> <li><a href="/wiki/Estrogen_receptor_beta" title="Estrogen receptor beta">β</a></li></ul></li> <li><a href="/wiki/Glucocorticoid_receptor" title="Glucocorticoid receptor">Glucocorticoid</a></li> <li><a href="/wiki/Mineralocorticoid_receptor" title="Mineralocorticoid receptor">Mineralocorticoid</a></li> <li><a href="/wiki/Progesterone_receptor" title="Progesterone receptor">Progesterone</a></li></ul></li> <li><a href="/wiki/Estrogen-related_receptor" title="Estrogen-related receptor">Estrogen related</a> <ul><li><a href="/wiki/Estrogen-related_receptor_alpha" title="Estrogen-related receptor alpha">α</a></li> <li><a href="/wiki/Estrogen-related_receptor_beta" title="Estrogen-related receptor beta">β</a></li> <li><a href="/wiki/Estrogen-related_receptor_gamma" title="Estrogen-related receptor gamma">γ</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>subfamily 4</i></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Nur_(biology)" class="mw-redirect" title="Nur (biology)">NUR</a> <ul><li><a href="/wiki/Nuclear_receptor_4A1" title="Nuclear receptor 4A1">NGFIB</a></li> <li><a href="/wiki/Nuclear_receptor_4A3" title="Nuclear receptor 4A3">NOR1</a></li> <li><a href="/wiki/Nuclear_receptor_4A2" title="Nuclear receptor 4A2">NURR1</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>subfamily 5</i></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Liver_receptor_homolog-1" title="Liver receptor homolog-1">LRH-1</a></li> <li><a href="/wiki/Steroidogenic_factor_1" title="Steroidogenic factor 1">SF1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>subfamily 6</i></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Germ_cell_nuclear_factor" title="Germ cell nuclear factor">GCNF</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>subfamily 0</i></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DAX1" title="DAX1">DAX1</a></li> <li><a href="/wiki/Small_heterodimer_partner" title="Small heterodimer partner">SHP</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(2.2) Other Cys<sub>4</sub></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/GATA_transcription_factor" title="GATA transcription factor">GATA</a> <ul><li><a href="/wiki/GATA1" title="GATA1">1</a></li> <li><a href="/wiki/GATA2" title="GATA2">2</a></li> <li><a href="/wiki/GATA3" title="GATA3">3</a></li> <li><a href="/wiki/GATA4" title="GATA4">4</a></li> <li><a href="/wiki/GATA5" title="GATA5">5</a></li> <li><a href="/wiki/GATA6" title="GATA6">6</a></li></ul></li> <li><i>MTA</i> <ul><li><a href="/wiki/MTA1" title="MTA1">1</a></li> <li><a href="/wiki/MTA2" title="MTA2">2</a></li> <li><a href="/wiki/MTA3" title="MTA3">3</a></li></ul></li> <li><a href="/wiki/Tricho-rhino-phalangeal_syndrome_Type_1" title="Tricho-rhino-phalangeal syndrome Type 1">TRPS1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(2.3) Cys<sub>2</sub>His<sub>2</sub></i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/General_transcription_factor" title="General transcription factor">General transcription factors</a> <ul><li><a href="/wiki/Transcription_factor_II_A" title="Transcription factor II A">TFIIA</a></li> <li><a href="/wiki/Transcription_factor_II_B" title="Transcription factor II B">TFIIB</a></li> <li><a href="/wiki/Transcription_factor_II_D" title="Transcription factor II D">TFIID</a></li> <li><a href="/wiki/Transcription_factor_II_E" title="Transcription factor II E">TFIIE</a> <ul><li><a href="/wiki/GTF2E1" title="GTF2E1">1</a></li> <li><a href="/wiki/GTF2E2" title="GTF2E2">2</a></li></ul></li> <li><a href="/wiki/Transcription_factor_II_F" title="Transcription factor II F">TFIIF</a></li> <li><a href="/wiki/GTF2F1" title="GTF2F1">1</a></li> <li><a href="/wiki/GTF2F2" title="GTF2F2">2</a> <ul><li><a href="/wiki/Transcription_factor_II_H" title="Transcription factor II H">TFIIH</a></li> <li><a href="/wiki/GTF2H1" title="GTF2H1">1</a></li> <li><a href="/wiki/GTF2H2" title="GTF2H2">2</a></li> <li><a href="/wiki/GTF2H4" title="GTF2H4">4</a></li> <li><a href="/wiki/GTF2I" title="GTF2I">2I</a></li> <li><a href="/wiki/GTF3A" title="GTF3A">3A</a></li> <li><a href="/wiki/GTF3C1" title="GTF3C1">3C1</a></li> <li><a href="/wiki/GTF3C2" title="GTF3C2">3C2</a></li></ul></li></ul></li></ul> <ul><li><a href="/wiki/ATBF1" title="ATBF1">ATBF1</a></li> <li><i><a href="/wiki/B-cell_CLL/lymphoma" title="B-cell CLL/lymphoma">BCL</a></i> <ul><li><a href="/wiki/BCL6" title="BCL6">6</a></li> <li><a href="/wiki/BCL11A" title="BCL11A">11A</a></li> <li><a href="/wiki/BCL11B" title="BCL11B">11B</a></li></ul></li> <li><a href="/wiki/CTCF" title="CTCF">CTCF</a></li> <li><a href="/wiki/E4F1" title="E4F1">E4F1</a></li> <li><a href="/wiki/Early_growth_response_proteins" title="Early growth response proteins">EGR</a> <ul><li><a href="/wiki/EGR1" title="EGR1">1</a></li> <li><a href="/wiki/EGR2" title="EGR2">2</a></li> <li><a href="/wiki/EGR3" title="EGR3">3</a></li> <li><a href="/wiki/EGR4" title="EGR4">4</a></li></ul></li> <li><a href="/wiki/ERV3" title="ERV3">ERV3</a></li> <li><a href="/wiki/GFI1" title="GFI1">GFI1</a></li> <li><i>GLI family</i> <ul><li><a href="/wiki/GLI1" title="GLI1">1</a></li> <li><a href="/wiki/GLI2" title="GLI2">2</a></li> <li><a href="/wiki/GLI3" title="GLI3">3</a></li> <li><a href="/wiki/RE1-silencing_transcription_factor" title="RE1-silencing transcription factor">REST</a></li> <li><a href="/wiki/GLIS1" title="GLIS1">S1</a></li> <li><a href="/wiki/GLIS2" title="GLIS2">S2</a></li> <li><a href="/wiki/YY1" title="YY1">YY1</a></li></ul></li> <li><i>HIC</i> <ul><li><a href="/wiki/HIC1" title="HIC1">1</a></li> <li><a href="/wiki/HIC2" title="HIC2">2</a></li></ul></li> <li><i>HIVEP</i> <ul><li><a href="/wiki/HIVEP1" title="HIVEP1">1</a></li> <li><a href="/wiki/HIVEP2" title="HIVEP2">2</a></li> <li><a href="/wiki/HIVEP3" title="HIVEP3">3</a></li></ul></li> <li><i>IKZF</i> <ul><li><a href="/wiki/IKZF1" title="IKZF1">1</a></li> <li><a href="/wiki/IKZF2" title="IKZF2">2</a></li> <li><a href="/wiki/IKZF3" title="IKZF3">3</a></li></ul></li> <li><i>ILF</i> <ul><li><a href="/wiki/ILF2" title="ILF2">2</a></li> <li><a href="/wiki/ILF3" title="ILF3">3</a></li></ul></li> <li><a href="/wiki/Kruppel-like_factors" title="Kruppel-like factors">Sp/KLF family</a> <ul><li><i>KLF</i> <ul><li><a href="/wiki/KLF1" title="KLF1">1</a></li> <li><a href="/wiki/KLF2" title="KLF2">2</a></li> <li><a href="/wiki/KLF3" title="KLF3">3</a></li> <li><a href="/wiki/KLF4" title="KLF4">4</a></li> <li><a href="/wiki/KLF5" title="KLF5">5</a></li> <li><a href="/wiki/KLF6" title="KLF6">6</a></li> <li><a href="/wiki/KLF7" title="KLF7">7</a></li> <li><a href="/wiki/KLF8" title="KLF8">8</a></li> <li><a href="/wiki/KLF9" title="KLF9">9</a></li> <li><a href="/wiki/KLF10" title="KLF10">10</a></li> <li><a href="/wiki/KLF11" title="KLF11">11</a></li> <li><a href="/wiki/KLF12" title="KLF12">12</a></li> <li><a href="/wiki/KLF13" title="KLF13">13</a></li> <li><a href="/wiki/KLF14" title="KLF14">14</a></li> <li><a href="/wiki/KLF15" title="KLF15">15</a></li> <li><a href="/wiki/KLF17" title="KLF17">17</a></li></ul></li> <li><i>SP</i> <ul><li><a href="/wiki/Sp1_transcription_factor" class="mw-redirect" title="Sp1 transcription factor">1</a></li> <li><a href="/wiki/SP2_(gene)" class="mw-redirect" title="SP2 (gene)">2</a></li> <li><a href="/wiki/SP4_(gene)" class="mw-redirect" title="SP4 (gene)">4</a></li> <li><a href="/wiki/Sp7_transcription_factor" title="Sp7 transcription factor">7</a></li> <li><a href="/wiki/Sp8_transcription_factor" title="Sp8 transcription factor">8</a></li></ul></li></ul></li> <li><a href="/wiki/MTF1" title="MTF1">MTF1</a></li> <li><a href="/wiki/MYT1" title="MYT1">MYT1</a></li> <li><a href="/wiki/OSR1" title="OSR1">OSR1</a></li> <li><a href="/wiki/PRDM9" title="PRDM9">PRDM9</a></li> <li><i>SALL</i> <ul><li><a href="/wiki/SALL1" title="SALL1">1</a></li> <li><a href="/wiki/SALL2" title="SALL2">2</a></li> <li><a href="/wiki/SALL3" title="SALL3">3</a></li> <li><a href="/wiki/SALL4" title="SALL4">4</a></li></ul></li> <li><a href="/wiki/TSHZ3" title="TSHZ3">TSHZ3</a></li> <li><a href="/wiki/WT1" class="mw-redirect" title="WT1">WT1</a></li> <li><a href="/wiki/Zbtb7" title="Zbtb7">Zbtb7</a> <ul><li><a href="/wiki/ZBTB7A" title="ZBTB7A">7A</a></li> <li><a href="/wiki/ZBTB7B" title="ZBTB7B">7B</a></li></ul></li> <li><i>ZBTB</i> <ul><li><a href="/wiki/ZBTB11" title="ZBTB11">11</a></li> <li><a href="/wiki/Zinc_finger_and_BTB_domain-containing_protein_16" title="Zinc finger and BTB domain-containing protein 16">16</a></li> <li><a href="/wiki/ZBTB17" title="ZBTB17">17</a></li> <li><a href="/wiki/ZBTB20" title="ZBTB20">20</a></li> <li><a href="/wiki/ZBTB21" title="ZBTB21">21</a></li> <li><a href="/wiki/ZBTB32" title="ZBTB32">32</a></li> <li><a href="/wiki/ZBTB33" title="ZBTB33">33</a></li> <li><a href="/wiki/ZBTB40" title="ZBTB40">40</a></li></ul></li> <li><i>zinc finger</i> <ul><li><a href="/wiki/ZNF3" title="ZNF3">3</a></li> <li><a href="/wiki/ZNF7" title="ZNF7">7</a></li> <li><a href="/wiki/CNBP" title="CNBP">9</a></li> <li><a href="/wiki/ZNF10" title="ZNF10">10</a></li> <li><a href="/wiki/ZNF19" title="ZNF19">19</a></li> <li><a href="/wiki/ZNF22" title="ZNF22">22</a></li> <li><a href="/wiki/ZNF24" title="ZNF24">24</a></li> <li><a href="/wiki/ZNF33B" title="ZNF33B">33B</a></li> <li><a href="/wiki/ZNF34" title="ZNF34">34</a></li> <li><a href="/wiki/ZNF35" title="ZNF35">35</a></li> <li><a href="/wiki/ZNF41" title="ZNF41">41</a></li> <li><a href="/wiki/ZNF43" title="ZNF43">43</a></li> <li><a href="/wiki/ZNF44" title="ZNF44">44</a></li> <li><a href="/wiki/BCL6" title="BCL6">51</a></li> <li><a href="/wiki/ZNF74" title="ZNF74">74</a></li> <li><a href="/wiki/ZNF143" title="ZNF143">143</a></li> <li><a href="/wiki/ZNF146" title="ZNF146">146</a></li> <li><a href="/wiki/ZNF148" title="ZNF148">148</a></li> <li><a href="/wiki/Zinc_finger_protein_165" title="Zinc finger protein 165">165</a></li> <li><a href="/wiki/ZNF202" title="ZNF202">202</a></li> <li><a href="/wiki/ZNF217" title="ZNF217">217</a></li> <li><a href="/wiki/ZNF219" title="ZNF219">219</a></li> <li><a href="/wiki/ZNF238" title="ZNF238">238</a></li> <li><a href="/wiki/ZNF239" title="ZNF239">239</a></li> <li><a href="/wiki/ZNF259" title="ZNF259">259</a></li> <li><a href="/wiki/ZNF267" title="ZNF267">267</a></li> <li><a href="/wiki/EGR1" title="EGR1">268</a></li> <li><a href="/wiki/ZNF281" title="ZNF281">281</a></li> <li><a href="/wiki/ZNF300" title="ZNF300">300</a></li> <li><a href="/wiki/ZNF318" title="ZNF318">318</a></li> <li><a href="/wiki/ZNF330" title="ZNF330">330</a></li> <li><a href="/wiki/ZNF346" title="ZNF346">346</a></li> <li><a href="/wiki/ZNF350" title="ZNF350">350</a></li> <li><a href="/wiki/ZNF365" title="ZNF365">365</a></li> <li><a href="/wiki/ZNF366" title="ZNF366">366</a></li> <li><a href="/wiki/ZNF384" title="ZNF384">384</a></li> <li><a href="/wiki/ZNF423" title="ZNF423">423</a></li> <li><a href="/wiki/ZNF451" title="ZNF451">451</a></li> <li><a href="/wiki/ZNF452" title="ZNF452">452</a></li> <li><a href="/wiki/ZNF471" title="ZNF471">471</a></li> <li><a href="/wiki/ZNF593" title="ZNF593">593</a></li> <li><a href="/wiki/ZNF638" title="ZNF638">638</a></li> <li><a href="/wiki/ZNF644" title="ZNF644">644</a></li> <li><a href="/wiki/ZNF649" title="ZNF649">649</a></li> <li><a href="/wiki/ZNF655" title="ZNF655">655</a></li> <li><a href="/wiki/ZNF804A" class="mw-redirect" title="ZNF804A">804A</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(2.4) Cys<sub>6</sub></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/HIVEP1" title="HIVEP1">HIVEP1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(2.5) Alternating composition</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Autoimmune_regulator" title="Autoimmune regulator">AIRE</a></li> <li><a href="/wiki/DIDO1" title="DIDO1">DIDO1</a></li> <li><a href="/wiki/GRLF1" title="GRLF1">GRLF1</a></li> <li><i>ING</i> <ul><li><a href="/wiki/ING1" title="ING1">1</a></li> <li><a href="/wiki/ING2" title="ING2">2</a></li> <li><a href="/wiki/ING4" title="ING4">4</a></li></ul></li> <li><i>JARID</i> <ul><li><a href="/wiki/KDM5A" title="KDM5A">1A</a></li> <li><a href="/wiki/KDM5B" class="mw-redirect" title="KDM5B">1B</a></li> <li><a href="/wiki/KDM5C" title="KDM5C">1C</a></li> <li><a href="/wiki/KDM5D" title="KDM5D">1D</a></li> <li><a href="/wiki/JARID2" title="JARID2">2</a></li></ul></li> <li><a href="/wiki/KDM3B" title="KDM3B">JMJD1B</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(2.6) WRKY</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/WRKY_protein_domain" title="WRKY protein domain">WRKY</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" style="background-color: AntiqueWhite;"><div id="(3)_Helix-turn-helix_domains" style="font-size:114%;margin:0 4em"><i>(3)</i> <a href="/wiki/Helix-turn-helix" title="Helix-turn-helix">Helix-turn-helix</a> <i>domains</i></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent;"><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:16em;text-align:left;"><i>(3.1)</i> <a href="/wiki/Homeodomain_fold" class="mw-redirect" title="Homeodomain fold">Homeodomain</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><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:1%"><span class="nobold"><i><a href="/wiki/Antennapedia" title="Antennapedia">Antennapedia</a></i></span><br /><span class="nobold"><i>ANTP class</i></span></th><td class="navbox-list-with-group 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:1%"><span class="nobold"><i>protoHOX</i></span><br /><span class="nobold"><i>Hox-like</i></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ParaHox" title="ParaHox">ParaHox</a> <ul><li><a href="/wiki/Gsx_(gene_family)" title="Gsx (gene family)">Gsx</a> <ul><li><a href="/wiki/GSX1" title="GSX1">1</a></li> <li><a href="/wiki/GSX2" title="GSX2">2</a></li></ul></li> <li><a href="/wiki/Xlox" class="mw-redirect" title="Xlox">Xlox</a> <ul><li><a href="/wiki/PDX1" title="PDX1">PDX1</a></li></ul></li> <li><a href="/wiki/Cdx" title="Cdx">Cdx</a> <ul><li><a href="/wiki/CDX1" class="mw-redirect" title="CDX1">1</a></li> <li><a href="/wiki/CDX2" class="mw-redirect" title="CDX2">2</a></li> <li><a href="/wiki/CDX4_(gene)" class="mw-redirect" title="CDX4 (gene)">4</a></li></ul></li></ul></li> <li>extended Hox: <a href="/wiki/Evx1" title="Evx1">Evx1</a></li> <li><a href="/w/index.php?title=Evx2&amp;action=edit&amp;redlink=1" class="new" title="Evx2 (page does not exist)">Evx2</a></li> <li><a href="/wiki/MEOX1" title="MEOX1">MEOX1</a></li> <li><a href="/wiki/MEOX2" title="MEOX2">MEOX2</a></li> <li><a href="/wiki/Homeobox" title="Homeobox">Homeobox</a> <ul><li><a href="/wiki/Homeobox_A1" title="Homeobox A1">A1</a></li> <li><a href="/wiki/HOXA2" title="HOXA2">A2</a></li> <li><a href="/wiki/HOXA3" title="HOXA3">A3</a></li> <li><a href="/wiki/HOXA4" title="HOXA4">A4</a></li> <li><a href="/wiki/HOXA5" title="HOXA5">A5</a></li> <li><a href="/wiki/HOXA7" title="HOXA7">A7</a></li> <li><a href="/wiki/HOXA9" title="HOXA9">A9</a></li> <li><a href="/wiki/Homeobox_A10" title="Homeobox A10">A10</a></li> <li><a href="/wiki/HOXA11" title="HOXA11">A11</a></li> <li><a href="/wiki/HOXA13" title="HOXA13">A13</a></li> <li><a href="/wiki/HOXB1" title="HOXB1">B1</a></li> <li><a href="/wiki/HOXB2" title="HOXB2">B2</a></li> <li><a href="/wiki/HOXB3" title="HOXB3">B3</a></li> <li><a href="/wiki/HOXB4" title="HOXB4">B4</a></li> <li><a href="/wiki/HOXB5" title="HOXB5">B5</a></li> <li><a href="/wiki/HOXB6" title="HOXB6">B6</a></li> <li><a href="/wiki/HOXB7" title="HOXB7">B7</a></li> <li><a href="/wiki/HOXB8" title="HOXB8">B8</a></li> <li><a href="/wiki/HOXB9" title="HOXB9">B9</a></li> <li><a href="/wiki/HOXB13" title="HOXB13">B13</a></li> <li><a href="/wiki/HOXC4" title="HOXC4">C4</a></li> <li><a href="/wiki/HOXC5" title="HOXC5">C5</a></li> <li><a href="/wiki/HOXC6" title="HOXC6">C6</a></li> <li><a href="/wiki/HOXC8" title="HOXC8">C8</a></li> <li><a href="/wiki/HOXC9" title="HOXC9">C9</a></li> <li><a href="/wiki/HOXC10" title="HOXC10">C10</a></li> <li><a href="/wiki/HOXC11" title="HOXC11">C11</a></li> <li><a href="/wiki/HOXC12" title="HOXC12">C12</a></li> <li><a href="/wiki/HOXC13" title="HOXC13">C13</a></li> <li><a href="/wiki/HOXD1" title="HOXD1">D1</a></li> <li><a href="/wiki/HOXD3" title="HOXD3">D3</a></li> <li><a href="/wiki/HOXD4" title="HOXD4">D4</a></li> <li><a href="/wiki/HOXD8" title="HOXD8">D8</a></li> <li><a href="/wiki/HOXD9" title="HOXD9">D9</a></li> <li><a href="/wiki/HOXD10" title="HOXD10">D10</a></li> <li><a href="/wiki/HOXD11" title="HOXD11">D11</a></li> <li><a href="/wiki/HOXD12" title="HOXD12">D12</a></li> <li><a href="/wiki/HOXD13" title="HOXD13">D13</a></li></ul></li> <li><a href="/w/index.php?title=GBX1&amp;action=edit&amp;redlink=1" class="new" title="GBX1 (page does not exist)">GBX1</a></li> <li><a href="/wiki/GBX2" title="GBX2">GBX2</a></li> <li><a href="/wiki/MNX1" title="MNX1">MNX1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold"><i>metaHOX</i></span><br /><span class="nobold"><i>NK-like</i></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=BARHL1&amp;action=edit&amp;redlink=1" class="new" title="BARHL1 (page does not exist)">BARHL1</a></li> <li><a href="/wiki/BARHL2" title="BARHL2">BARHL2</a></li> <li><a href="/w/index.php?title=BARX1&amp;action=edit&amp;redlink=1" class="new" title="BARX1 (page does not exist)">BARX1</a></li> <li><a href="/w/index.php?title=BARX2&amp;action=edit&amp;redlink=1" class="new" title="BARX2 (page does not exist)">BARX2</a></li> <li><a href="/wiki/Brain-specific_homeobox" title="Brain-specific homeobox">BSX</a></li> <li><i>DBX</i> <ul><li><a href="/wiki/DBX1" title="DBX1">1</a></li> <li><a href="/wiki/DBX2" title="DBX2">2</a></li></ul></li> <li><a href="/wiki/DLX_gene_family" title="DLX gene family">DLX</a> <ul><li><a href="/wiki/DLX1" title="DLX1">1</a></li> <li><a href="/wiki/DLX2" title="DLX2">2</a></li> <li><a href="/wiki/DLX3_(gene)" class="mw-redirect" title="DLX3 (gene)">3</a></li> <li><a href="/wiki/DLX4" title="DLX4">4</a></li> <li><a href="/wiki/DLX5" title="DLX5">5</a></li> <li><a href="/wiki/DLX6" title="DLX6">6</a></li></ul></li> <li><i><a href="/wiki/EMX_homeogene" title="EMX homeogene">EMX</a></i> <ul><li><a href="/wiki/EMX1" title="EMX1">1</a></li> <li><a href="/wiki/EMX2" title="EMX2">2</a></li></ul></li> <li><i>EN</i> <ul><li><a href="/wiki/EN1_(gene)" title="EN1 (gene)">1</a></li> <li><a href="/wiki/EN2_(gene)" title="EN2 (gene)">2</a></li></ul></li> <li><a href="/wiki/HHEX" title="HHEX">HHEX</a></li> <li><a href="/wiki/HLX_(gene)" title="HLX (gene)">HLX</a></li> <li><a href="/wiki/LBX1" title="LBX1">LBX1</a></li> <li><a href="/wiki/LBX2" title="LBX2">LBX2</a></li> <li><i>MSX</i> <ul><li><a href="/wiki/MSX1" class="mw-redirect" title="MSX1">1</a></li> <li><a href="/wiki/Msh_homeobox_2" title="Msh homeobox 2">2</a></li></ul></li> <li><a href="/wiki/Homeobox_protein_NANOG" title="Homeobox protein NANOG">NANOG</a></li> <li><a href="/wiki/NKX-homeodomain_factor" title="NKX-homeodomain factor">NKX</a> <ul><li><a href="/wiki/NK2_homeobox_1" title="NK2 homeobox 1">2-1</a></li> <li><a href="/wiki/NKX2-2" title="NKX2-2">2-2</a></li> <li><a href="/wiki/NKX2-3" title="NKX2-3">2-3</a></li> <li><a href="/wiki/Homeobox_protein_Nkx-2.5" title="Homeobox protein Nkx-2.5">2-5</a></li> <li><a href="/wiki/NKX3-1" title="NKX3-1">3-1</a></li> <li><a href="/wiki/NKX3-2" title="NKX3-2">3-2</a></li> <li><a href="/w/index.php?title=HMX1&amp;action=edit&amp;redlink=1" class="new" title="HMX1 (page does not exist)">HMX1</a></li> <li><a href="/w/index.php?title=HMX2&amp;action=edit&amp;redlink=1" class="new" title="HMX2 (page does not exist)">HMX2</a></li> <li><a href="/w/index.php?title=HMX3&amp;action=edit&amp;redlink=1" class="new" title="HMX3 (page does not exist)">HMX3</a></li> <li><a href="/wiki/NKX6-1" title="NKX6-1">6-1</a></li> <li><a href="/wiki/NKX6-2" title="NKX6-2">6-2</a></li></ul></li> <li><a href="/wiki/Notochord_homeobox_(NOTO)_gene" title="Notochord homeobox (NOTO) gene">NOTO</a></li> <li><a href="/wiki/TLX1" title="TLX1">TLX1</a></li> <li><a href="/wiki/TLX2" title="TLX2">TLX2</a></li> <li><a href="/wiki/TLX3" title="TLX3">TLX3</a></li> <li><a href="/wiki/VAX1" title="VAX1">VAX1</a></li> <li><a href="/w/index.php?title=VAX2&amp;action=edit&amp;redlink=1" class="new" title="VAX2 (page does not exist)">VAX2</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><span class="nobold">other</span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Aristaless_related_homeobox" title="Aristaless related homeobox">ARX</a></li> <li><a href="/wiki/CRX_(gene)" title="CRX (gene)">CRX</a></li> <li><a href="/wiki/CUTL1" title="CUTL1">CUTL1</a></li> <li><i>FHL</i> <ul><li><a href="/wiki/FHL1" title="FHL1">1</a></li> <li><a href="/wiki/FHL2" title="FHL2">2</a></li> <li><a href="/wiki/FHL3" title="FHL3">3</a></li></ul></li> <li><a href="/wiki/HESX1" title="HESX1">HESX1</a></li> <li><a href="/wiki/HOPX" title="HOPX">HOPX</a></li> <li><i>LMX</i> <ul><li><a href="/wiki/LMX1A" title="LMX1A">1A</a></li> <li><a href="/wiki/LMX1B" title="LMX1B">1B</a></li></ul></li> <li><a href="/wiki/NOBOX" title="NOBOX">NOBOX</a></li> <li>TALE <ul><li><a href="/wiki/Iroquois_homeobox_factor" title="Iroquois homeobox factor">IRX</a> <ul><li><a href="/wiki/IRX1" title="IRX1">1</a></li> <li><a href="/wiki/IRX2" title="IRX2">2</a></li> <li><a href="/wiki/IRX3" title="IRX3">3</a></li> <li><a href="/wiki/IRX4" title="IRX4">4</a></li> <li><a href="/wiki/IRX5" title="IRX5">5</a></li> <li><a href="/wiki/IRX6" title="IRX6">6</a></li> <li><a href="/wiki/MKX" title="MKX">MKX</a></li></ul></li> <li><i>MEIS</i> <ul><li><a href="/wiki/MEIS1" title="MEIS1">1</a></li> <li><a href="/wiki/MEIS2" title="MEIS2">2</a></li></ul></li> <li><i>PBX</i> <ul><li><a href="/wiki/PBX1" title="PBX1">1</a></li> <li><a href="/wiki/PBX2" title="PBX2">2</a></li> <li><a href="/wiki/PBX3" title="PBX3">3</a></li></ul></li> <li><i>PKNOX</i> <ul><li><a href="/wiki/PKNOX1" title="PKNOX1">1</a></li> <li><a href="/wiki/PKNOX2" title="PKNOX2">2</a></li></ul></li> <li><i>SIX</i> <ul><li><a href="/wiki/SIX1" class="mw-redirect" title="SIX1">1</a></li> <li><a href="/wiki/SIX2" title="SIX2">2</a></li> <li><a href="/wiki/SIX3" title="SIX3">3</a></li> <li><a href="/wiki/SIX4" title="SIX4">4</a></li> <li><a href="/wiki/SIX5" title="SIX5">5</a></li></ul></li></ul></li> <li><i>PHF</i> <ul><li><a href="/wiki/PHF1" title="PHF1">1</a></li> <li><a href="/wiki/PHF3" title="PHF3">3</a></li> <li><a href="/wiki/PHF6" title="PHF6">6</a></li> <li><a href="/wiki/PHF8" title="PHF8">8</a></li> <li><a href="/wiki/PHF10" title="PHF10">10</a></li> <li><a href="/wiki/PHF16" title="PHF16">16</a></li> <li><a href="/wiki/PHF17" class="mw-redirect" title="PHF17">17</a></li> <li><a href="/wiki/PHF20" title="PHF20">20</a></li> <li><a href="/wiki/PHF21A" title="PHF21A">21A</a></li></ul></li> <li><a href="/wiki/POU_domain" title="POU domain">POU domain</a> <ul><li><a href="/wiki/Pituitary-specific_positive_transcription_factor_1" title="Pituitary-specific positive transcription factor 1">PIT-1</a></li> <li><a href="/wiki/BRN-3" title="BRN-3">BRN-3</a>: <a href="/wiki/POU4F1" title="POU4F1">A</a></li> <li><a href="/wiki/POU4F2" title="POU4F2">B</a></li> <li><a href="/wiki/POU4F3" title="POU4F3">C</a></li> <li><a href="/wiki/Octamer_transcription_factor" title="Octamer transcription factor">Octamer transcription factor</a>: <a href="/wiki/POU2F1" title="POU2F1">1</a></li> <li><a href="/wiki/Oct-2" title="Oct-2">2</a></li> <li><a href="/wiki/Oct-4" title="Oct-4">3/4</a></li> <li><a href="/wiki/POU3F1" title="POU3F1">6</a></li> <li><a href="/wiki/POU3F2" title="POU3F2">7</a></li> <li><a href="/wiki/POU3F4" title="POU3F4">11</a></li></ul></li> <li><a href="/wiki/SATB2" title="SATB2">SATB2</a></li> <li><i>ZEB</i> <ul><li><a href="/wiki/ZEB1" title="ZEB1">1</a></li> <li><a href="/wiki/ZEB2" title="ZEB2">2</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(3.2) Paired box</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/Pax_genes" title="Pax genes">PAX</a> <ul><li><a href="/wiki/PAX1" title="PAX1">1</a></li> <li><a href="/wiki/PAX2" title="PAX2">2</a></li> <li><a href="/wiki/PAX3" title="PAX3">3</a></li> <li><a href="/wiki/PAX4" title="PAX4">4</a></li> <li><a href="/wiki/PAX5" title="PAX5">5</a></li> <li><a href="/wiki/PAX6" title="PAX6">6</a></li> <li><a href="/wiki/PAX7" title="PAX7">7</a></li> <li><a href="/wiki/PAX8" title="PAX8">8</a></li> <li><a href="/wiki/PAX9" title="PAX9">9</a></li></ul></li> <li>PRRX <ul><li><a href="/wiki/PRRX1" title="PRRX1">1</a></li> <li><a href="/wiki/PRRX2" title="PRRX2">2</a></li></ul></li> <li><a href="/wiki/PROP1" title="PROP1">PROP1</a></li> <li><i>PHOX</i> <ul><li><a href="/wiki/PHOX2A" title="PHOX2A">2A</a></li> <li><a href="/wiki/PHOX2B" title="PHOX2B">2B</a></li></ul></li> <li><a href="/wiki/Retinal_homeobox_protein_Rx" title="Retinal homeobox protein Rx">RAX</a></li> <li><a href="/wiki/Short-stature_homeobox_gene" title="Short-stature homeobox gene">SHOX</a></li> <li><a href="/wiki/SHOX2" title="SHOX2">SHOX2</a></li> <li><a href="/wiki/VSX1" title="VSX1">VSX1</a></li> <li><a href="/wiki/VSX2" title="VSX2">VSX2</a></li> <li><a href="/wiki/Bicoid_(gene)" class="mw-redirect" title="Bicoid (gene)">Bicoid</a> <ul><li><a href="/wiki/Goosecoid_protein" class="mw-redirect" title="Goosecoid protein">GSC</a></li> <li><a href="/wiki/BICD2" title="BICD2">BICD2</a></li> <li><i>OTX</i> <ul><li><a href="/wiki/OTX1" title="OTX1">1</a></li> <li><a href="/wiki/Orthodenticle_homeobox_2" title="Orthodenticle homeobox 2">2</a></li></ul></li> <li><i>PITX</i> <ul><li><a href="/wiki/PITX1" title="PITX1">1</a></li> <li><a href="/wiki/PITX2" title="PITX2">2</a></li> <li><a href="/wiki/PITX3" title="PITX3">3</a></li></ul></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(3.3)</i> <a href="/wiki/FOX_proteins" title="FOX proteins">Fork head</a> / <a href="/wiki/Winged-helix_transcription_factors" title="Winged-helix transcription factors">winged helix</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/E2F" title="E2F">E2F</a> <ul><li><a href="/wiki/E2F1" title="E2F1">1</a></li> <li><a href="/wiki/E2F2" title="E2F2">2</a></li> <li><a href="/wiki/E2F3" title="E2F3">3</a></li> <li><a href="/wiki/E2F4" title="E2F4">4</a></li> <li><a href="/wiki/E2F5" title="E2F5">5</a></li></ul></li> <li><a href="/wiki/FOX_proteins" title="FOX proteins">FOX proteins</a> <ul><li><a href="/wiki/FOXA1" title="FOXA1">A1</a></li> <li><a href="/wiki/FOXA2" title="FOXA2">A2</a></li> <li><a href="/wiki/FOXA3" title="FOXA3">A3</a></li> <li><a href="/wiki/FOXB1" class="mw-redirect" title="FOXB1">B1</a></li> <li><a href="/w/index.php?title=FOXB2&amp;action=edit&amp;redlink=1" class="new" title="FOXB2 (page does not exist)">B2</a></li> <li><a href="/wiki/Forkhead_box_C1" title="Forkhead box C1">C1</a></li> <li><a href="/wiki/FOXC2" title="FOXC2">C2</a></li> <li><a href="/wiki/FOXD1" class="mw-redirect" title="FOXD1">D1</a></li> <li><a href="/w/index.php?title=FOXD2&amp;action=edit&amp;redlink=1" class="new" title="FOXD2 (page does not exist)">D2</a></li> <li><a href="/wiki/FOXD3" title="FOXD3">D3</a></li> <li><a href="/wiki/FOXD4" title="FOXD4">D4</a></li> <li><a href="/w/index.php?title=FOXD4L1&amp;action=edit&amp;redlink=1" class="new" title="FOXD4L1 (page does not exist)">D4L1</a></li> <li><a href="/w/index.php?title=FOXD4L3&amp;action=edit&amp;redlink=1" class="new" title="FOXD4L3 (page does not exist)">D4L3</a></li> <li><a href="/w/index.php?title=FOXD4L4&amp;action=edit&amp;redlink=1" class="new" title="FOXD4L4 (page does not exist)">D4L4</a></li> <li><a href="/w/index.php?title=FOXD4L5&amp;action=edit&amp;redlink=1" class="new" title="FOXD4L5 (page does not exist)">D4L5</a></li> <li><a href="/w/index.php?title=FOXD4L6&amp;action=edit&amp;redlink=1" class="new" title="FOXD4L6 (page does not exist)">D4L6</a></li> <li><a href="/wiki/FOXE1" title="FOXE1">E1</a></li> <li><a href="/wiki/FOXE3" title="FOXE3">E3</a></li> <li><a href="/wiki/FOXF1" title="FOXF1">F1</a></li> <li><a href="/wiki/FOXF2" title="FOXF2">F2</a></li> <li><a href="/wiki/FOXG1" title="FOXG1">G1</a></li> <li><a href="/wiki/FOXH1" title="FOXH1">H1</a></li> <li><a href="/wiki/FOXI1" title="FOXI1">I1</a></li> <li><a href="/w/index.php?title=FOXI2&amp;action=edit&amp;redlink=1" class="new" title="FOXI2 (page does not exist)">I2</a></li> <li><a href="/wiki/FOXI3" title="FOXI3">I3</a></li> <li><a href="/wiki/FOXJ1" title="FOXJ1">J1</a></li> <li><a href="/wiki/FOXJ2" title="FOXJ2">J2</a></li> <li><a href="/w/index.php?title=FOXJ3&amp;action=edit&amp;redlink=1" class="new" title="FOXJ3 (page does not exist)">J3</a></li> <li><a href="/wiki/FOXK1" title="FOXK1">K1</a></li> <li><a href="/wiki/FOXK2" title="FOXK2">K2</a></li> <li><a href="/w/index.php?title=FOXL1&amp;action=edit&amp;redlink=1" class="new" title="FOXL1 (page does not exist)">L1</a></li> <li><a href="/wiki/Forkhead_box_L2" class="mw-redirect" title="Forkhead box L2">L2</a></li> <li><a href="/wiki/FOXM1" title="FOXM1">M1</a></li> <li><a href="/wiki/FOXN1" title="FOXN1">N1</a></li> <li><a href="/w/index.php?title=FOXN2&amp;action=edit&amp;redlink=1" class="new" title="FOXN2 (page does not exist)">N2</a></li> <li><a href="/wiki/FOXN3" title="FOXN3">N3</a></li> <li><a href="/w/index.php?title=FOXN4&amp;action=edit&amp;redlink=1" class="new" title="FOXN4 (page does not exist)">N4</a></li> <li><a href="/wiki/FOXO1" class="mw-redirect" title="FOXO1">O1</a></li> <li><a href="/wiki/FOXO3" title="FOXO3">O3</a></li> <li><a href="/wiki/FOXO4" title="FOXO4">O4</a></li> <li><a href="/wiki/FOXO6" title="FOXO6">O6</a></li> <li><a href="/wiki/FOXP1" title="FOXP1">P1</a></li> <li><a href="/wiki/FOXP2" title="FOXP2">P2</a></li> <li><a href="/wiki/FOXP3" title="FOXP3">P3</a></li> <li><a href="/wiki/FOXP4" title="FOXP4">P4</a></li> <li><a href="/wiki/FOXQ1" title="FOXQ1">Q1</a></li> <li><a href="/w/index.php?title=FOXR1&amp;action=edit&amp;redlink=1" class="new" title="FOXR1 (page does not exist)">R1</a></li> <li><a href="/w/index.php?title=FOXR2&amp;action=edit&amp;redlink=1" class="new" title="FOXR2 (page does not exist)">R2</a></li> <li><a href="/wiki/FOXS1" title="FOXS1">S1</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(3.4)</i> <a href="/wiki/Heat_shock_factor" title="Heat shock factor">Heat shock factors</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Heat_shock_factor" title="Heat shock factor">HSF</a></i> <ul><li><a href="/wiki/HSF1" class="mw-redirect" title="HSF1">1</a></li> <li><a href="/wiki/HSF2" title="HSF2">2</a></li> <li><a href="/wiki/HSF4" title="HSF4">4</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(3.5) Tryptophan clusters</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><i>ELF</i> <ul><li><a href="/wiki/ELF2" title="ELF2">2</a></li> <li><a href="/wiki/ELF4" title="ELF4">4</a></li> <li><a href="/wiki/ELF5" title="ELF5">5</a></li></ul></li> <li><a href="/wiki/EHF_(gene)" title="EHF (gene)">EHF</a></li> <li><i>ELK</i> <ul><li><a href="/wiki/ELK1" title="ELK1">1</a></li> <li><a href="/wiki/ELK3" title="ELK3">3</a></li> <li><a href="/wiki/ELK4" title="ELK4">4</a></li></ul></li> <li><a href="/wiki/ERF_(gene)" title="ERF (gene)">ERF</a></li> <li><a href="/wiki/ETS_transcription_factor_family" title="ETS transcription factor family">ETS</a> <ul><li><a href="/wiki/ETS1" title="ETS1">1</a></li> <li><a href="/wiki/ETS2" title="ETS2">2</a></li> <li><a href="/wiki/ERG_(gene)" title="ERG (gene)">ERG</a></li> <li><a href="/wiki/SPIB" title="SPIB">SPIB</a></li></ul></li> <li><i>ETV</i> <ul><li><a href="/wiki/ETV1" title="ETV1">1</a></li> <li><a href="/wiki/ETV4" title="ETV4">4</a></li> <li><a href="/wiki/ERM_transcription_factor" class="mw-redirect" title="ERM transcription factor">5</a></li> <li><a href="/wiki/ETV6" title="ETV6">6</a></li></ul></li> <li><a href="/wiki/FLI1" title="FLI1">FLI1</a></li> <li><a href="/wiki/Interferon_regulatory_factors" title="Interferon regulatory factors">Interferon regulatory factors</a> <ul><li><a href="/wiki/IRF1" title="IRF1">1</a></li> <li><a href="/wiki/IRF2" title="IRF2">2</a></li> <li><a href="/wiki/IRF3" title="IRF3">3</a></li> <li><a href="/wiki/IRF4" title="IRF4">4</a></li> <li><a href="/wiki/IRF5" title="IRF5">5</a></li> <li><a href="/wiki/IRF6" title="IRF6">6</a></li> <li><a href="/wiki/IRF7" title="IRF7">7</a></li> <li><a href="/wiki/IRF8" title="IRF8">8</a></li></ul></li> <li><a href="/wiki/MYB_(gene)" title="MYB (gene)">MYB</a></li> <li><a href="/wiki/MYBL2" title="MYBL2">MYBL2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(3.6) TEA domain</i></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i>transcriptional enhancer factor</i> <ul><li><a href="/wiki/TEAD1" title="TEAD1">1</a></li> <li><a href="/wiki/TEAD2" title="TEAD2">2</a></li> <li><a href="/wiki/TEAD3" title="TEAD3">3</a></li> <li><a href="/wiki/TEAD4" title="TEAD4">4</a></li></ul></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" style="background-color: AntiqueWhite;"><div id="(4)_β-Scaffold_factors_with_minor_groove_contacts" style="font-size:114%;margin:0 4em">(4) <i>β-Scaffold factors with minor groove contacts</i></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent;"><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:16em;text-align:left;"><i>(4.1)</i> <a href="/wiki/Rel_homology_domain" title="Rel homology domain">Rel homology region</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NF-%CE%BAB" title="NF-κB">NF-κB</a> <ul><li><a href="/wiki/NFKB1" title="NFKB1">NFKB1</a></li> <li><a href="/wiki/NFKB2" title="NFKB2">NFKB2</a></li> <li><a href="/wiki/REL" title="REL">REL</a></li> <li><a href="/wiki/RELA" title="RELA">RELA</a></li> <li><a href="/wiki/RELB" title="RELB">RELB</a></li></ul></li> <li><a href="/wiki/NFAT" title="NFAT">NFAT</a> <ul><li><a href="/wiki/NFATC1" title="NFATC1">C1</a></li> <li><a href="/wiki/NFATC2" title="NFATC2">C2</a></li> <li><a href="/wiki/NFATC3" title="NFATC3">C3</a></li> <li><a href="/wiki/NFATC4" title="NFATC4">C4</a></li> <li><a href="/wiki/NFAT5" title="NFAT5">5</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(4.2)</i> <a href="/wiki/STAT_protein" title="STAT protein">STAT</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/STAT_protein" title="STAT protein">STAT</a> <ul><li><a href="/wiki/STAT1" title="STAT1">1</a></li> <li><a href="/wiki/STAT2" title="STAT2">2</a></li> <li><a href="/wiki/STAT3" title="STAT3">3</a></li> <li><a href="/wiki/STAT4" title="STAT4">4</a></li> <li><a href="/wiki/STAT5" title="STAT5">5</a></li> <li><a href="/wiki/STAT6" title="STAT6">6</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(4.3) p53-like</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/P53_p63_p73_family" title="P53 p63 p73 family">p53 p63 p73 family</a> <ul><li><a href="/wiki/P53" title="P53">p53</a></li> <li><a href="/wiki/TP63" title="TP63">TP63</a></li> <li><a href="/wiki/P73" title="P73">p73</a></li></ul></li> <li><a href="/wiki/T-box" title="T-box">TBX</a> <ul><li><a href="/wiki/TBX1" title="TBX1">1</a></li> <li><a href="/wiki/TBX2" title="TBX2">2</a></li> <li><a href="/wiki/TBX3" title="TBX3">3</a></li> <li><a href="/wiki/TBX5_(gene)" title="TBX5 (gene)">5</a></li> <li><a href="/wiki/TBX19" title="TBX19">19</a></li> <li><a href="/wiki/TBX21" title="TBX21">21</a></li> <li><a href="/wiki/TBX22" title="TBX22">22</a></li> <li><a href="/wiki/TBR1" title="TBR1">TBR1</a></li> <li><a href="/wiki/Eomesodermin" title="Eomesodermin">TBR2</a></li> <li><a href="/wiki/Brachyury" class="mw-redirect" title="Brachyury">TFT</a></li></ul></li> <li><a href="/wiki/Myelin_regulatory_factor" title="Myelin regulatory factor">MYRF</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(4.4)</i> <a href="/wiki/MADS-box" title="MADS-box">MADS box</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/Mef2" title="Mef2">Mef2</a> <ul><li><a href="/wiki/Myocyte-specific_enhancer_factor_2A" title="Myocyte-specific enhancer factor 2A">A</a></li> <li><a href="/wiki/MEF2B" title="MEF2B">B</a></li> <li><a href="/wiki/MEF2C" title="MEF2C">C</a></li> <li><a href="/wiki/MEF2D" title="MEF2D">D</a></li></ul></li> <li><a href="/wiki/Serum_response_factor" title="Serum response factor">SRF</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(4.6)</i> <a href="/wiki/TATA-binding_protein" title="TATA-binding protein">TATA-binding proteins</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/TATA-binding_protein" title="TATA-binding protein">TBP</a></li> <li><a href="/wiki/TBPL1" title="TBPL1">TBPL1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(4.7)</i> <a href="/wiki/High-mobility_group" title="High-mobility group">High-mobility group</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/BBX_(gene)" title="BBX (gene)">BBX</a></li> <li><a href="/wiki/HMG-box" title="HMG-box">HMGB</a> <ul><li><a href="/wiki/HMGB1" title="HMGB1">1</a></li> <li><a href="/wiki/HMGB2" title="HMGB2">2</a></li> <li><a href="/wiki/HMGB3" title="HMGB3">3</a></li> <li><a href="/wiki/HMGB4" title="HMGB4">4</a></li></ul></li> <li><a href="/wiki/HMGN" title="HMGN">HMGN</a> <ul><li><a href="/wiki/HMGN1" title="HMGN1">1</a></li> <li><a href="/wiki/HMGN2" title="HMGN2">2</a></li> <li><a href="/wiki/HMGN3" title="HMGN3">3</a></li> <li><a href="/wiki/HMGN4" title="HMGN4">4</a></li></ul></li> <li><i>HNF</i> <ul><li><a href="/wiki/HNF1A" title="HNF1A">1A</a></li> <li><a href="/wiki/HNF1B" title="HNF1B">1B</a></li></ul></li> <li><a href="/wiki/SOX_gene_family" title="SOX gene family">SOX</a> <ul><li><a href="/wiki/SOX1" title="SOX1">1</a></li> <li><a href="/wiki/SOX2" title="SOX2">2</a></li> <li><a href="/wiki/SOX3" title="SOX3">3</a></li> <li><a href="/wiki/SOX4" title="SOX4">4</a></li> <li><a href="/wiki/SOX5" title="SOX5">5</a></li> <li><a href="/wiki/SOX6" title="SOX6">6</a></li> <li><a href="/wiki/SOX8" title="SOX8">8</a></li> <li><a href="/wiki/SOX9" title="SOX9">9</a></li> <li><a href="/wiki/SOX10" title="SOX10">10</a></li> <li><a href="/wiki/SOX11" title="SOX11">11</a></li> <li><a href="/wiki/SOX12" title="SOX12">12</a></li> <li><a href="/wiki/SOX13" title="SOX13">13</a></li> <li><a href="/wiki/SOX14" title="SOX14">14</a></li> <li><a href="/wiki/SOX15" title="SOX15">15</a></li> <li><a href="/wiki/SOX17" title="SOX17">17</a></li> <li><a href="/wiki/SOX18" title="SOX18">18</a></li> <li><a href="/wiki/SOX21" title="SOX21">21</a></li></ul></li> <li><a href="/wiki/Testis_determining_factor" class="mw-redirect" title="Testis determining factor">SRY</a></li> <li><a href="/wiki/Structure_specific_recognition_protein_1" title="Structure specific recognition protein 1">SSRP1</a></li> <li><a href="/wiki/TCF/LEF_family" title="TCF/LEF family">TCF/LEF</a> <ul><li><i>TCF</i> <ul><li><a href="/wiki/TCF7" title="TCF7">1</a></li> <li><a href="/wiki/TCF3" title="TCF3">3</a></li> <li><a href="/wiki/TCF7L2" title="TCF7L2">4</a></li></ul></li> <li><a href="/wiki/Lymphoid_enhancer-binding_factor_1" title="Lymphoid enhancer-binding factor 1">LEF1</a></li></ul></li> <li><i>TOX</i> <ul><li><a href="/wiki/TOX" title="TOX">1</a></li> <li><a href="/wiki/TOX2" title="TOX2">2</a></li> <li><a href="/wiki/TOX3" title="TOX3">3</a></li> <li><a href="/wiki/TOX4" title="TOX4">4</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(4.9) Grainyhead</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/TFCP2" title="TFCP2">TFCP2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(4.10) Cold-shock domain</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/CSDA_(gene)" title="CSDA (gene)">CSDA</a></li> <li><a href="/wiki/Y_box_binding_protein_1" title="Y box binding protein 1">YBX1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(4.11) Runt</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Core_binding_factor" title="Core binding factor">CBF</a> <ul><li><a href="/wiki/CBFA2T2" title="CBFA2T2">CBFA2T2</a></li> <li><a href="/wiki/CBFA2T3" title="CBFA2T3">CBFA2T3</a></li> <li><a href="/wiki/RUNX1" title="RUNX1">RUNX1</a></li> <li><a href="/wiki/RUNX2" title="RUNX2">RUNX2</a></li> <li><a href="/wiki/RUNX3" title="RUNX3">RUNX3</a></li> <li><a href="/wiki/RUNX1T1" title="RUNX1T1">RUNX1T1</a></li></ul></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" style="background-color: AntiqueWhite;"><div id="(0)_Other_transcription_factors" style="font-size:114%;margin:0 4em"><i> (0) Other transcription factors</i></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent;"><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:16em;text-align:left;"><i>(0.2) HMGI(Y)</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HMGA" title="HMGA">HMGA</a> <ul><li><a href="/wiki/HMGA1" title="HMGA1">1</a></li> <li><a href="/wiki/HMGA2" title="HMGA2">2</a></li></ul></li> <li><a href="/wiki/HBP1" title="HBP1">HBP1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(0.3)</i> <a href="/wiki/Pocket_protein_family" title="Pocket protein family">Pocket domain</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/Retinoblastoma_protein" title="Retinoblastoma protein">Rb</a></li> <li><a href="/wiki/Retinoblastoma-like_protein_1" title="Retinoblastoma-like protein 1">RBL1</a></li> <li><a href="/wiki/Retinoblastoma-like_protein_2" title="Retinoblastoma-like protein 2">RBL2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(0.5)</i> <a href="/wiki/Apetala_2" title="Apetala 2">AP-2</a><i>/</i><a href="/wiki/Ethylene-responsive_element_binding_protein" title="Ethylene-responsive element binding protein">EREBP</a><i>-related factors</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0;background-color: AntiqueWhite;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Apetala_2" title="Apetala 2">Apetala 2</a></li> <li><a href="/wiki/Ethylene-responsive_element_binding_protein" title="Ethylene-responsive element binding protein">EREBP</a></li> <li><a href="/wiki/B3_domain" title="B3 domain">B3</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:16em;text-align:left;"><i>(0.6) Miscellaneous</i></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i>ARID</i> <ul><li><a href="/wiki/ARID1A" title="ARID1A">1A</a></li> <li><a href="/wiki/ARID1B" title="ARID1B">1B</a></li> <li><a href="/wiki/ARID2" title="ARID2">2</a></li> <li><a href="/wiki/ARID3A" title="ARID3A">3A</a></li> <li><a href="/wiki/ARID3B" title="ARID3B">3B</a></li> <li><a href="/wiki/ARID4A" title="ARID4A">4A</a></li></ul></li> <li><a href="/wiki/Catabolite_activator_protein" title="Catabolite activator protein">CAP</a></li> <li><i>IFI</i> <ul><li><a href="/wiki/IFI16" title="IFI16">16</a></li> <li><a href="/wiki/IFI35" title="IFI35">35</a></li></ul></li> <li><a href="/wiki/MLL_(gene)" class="mw-redirect" title="MLL (gene)">MLL</a> <ul><li><a href="/wiki/MLL2" class="mw-redirect" title="MLL2">2</a></li> <li><a href="/wiki/MLL3" class="mw-redirect" title="MLL3">3</a></li> <li><a href="/wiki/MLLT1" title="MLLT1">T1</a></li></ul></li> <li><a href="/wiki/MNDA" title="MNDA">MNDA</a></li> <li><i>NFY</i> <ul><li><a href="/wiki/NFYA" title="NFYA">A</a></li> <li><a href="/wiki/NFYB" title="NFYB">B</a></li> <li><a href="/wiki/NFYC" title="NFYC">C</a></li></ul></li> <li><a href="/wiki/Rho_factor" title="Rho factor">Rho</a>/<a href="/wiki/Sigma_factor" title="Sigma factor">Sigma</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="background-color: AntiqueWhite"><div><i>see also <a href="/wiki/Template:Transcription_factor_and_coregulator_deficiencies" title="Template:Transcription factor and coregulator deficiencies">transcription factor/coregulator deficiencies</a></i></div></td></tr></tbody></table></div> <!-- NewPP limit report Parsed by mw‐api‐int.codfw.main‐578bbdc5cb‐f5rt8 Cached time: 20241203163546 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 0.795 seconds Real time usage: 1.892 seconds Preprocessor visited node count: 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