nih-gov/www.ncbi.nlm.nih.gov/omim/604843

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Entry
- *604843 - SOLUTE CARRIER ORGANIC ANION TRANSPORTER FAMILY, MEMBER 1B1; SLCO1B1
- OMIM
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<span class="h4">*604843</span>
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<strong>Table of Contents</strong>
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<a href="#title"><strong>Title</strong></a>
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<a href="#geneMap"><strong>Gene-Phenotype Relationships</strong></a>
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<a href="#text"><strong>Text</strong></a>
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<a href="#cloning">Cloning and Expression</a>
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<a href="#mapping">Mapping</a>
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<a href="#geneFunction">Gene Function</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#allelicVariants"><strong>Allelic Variants</strong></a>
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<a href="#references"><strong>References</strong></a>
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<a href="#creationDate"><strong>Creation Date</strong></a>
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<div id="mimProteinLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://hprd.org/summary?hprd_id=09214&isoform_id=09214_1&isoform_name=Isoform_1" class="mim-tip-hint" title="The Human Protein Reference Database; manually extracted and visually depicted information on human proteins." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HPRD', 'domain': 'hprd.org'})">HPRD</a></div>
<div><a href="https://www.proteinatlas.org/search/SLCO1B1" class="mim-tip-hint" title="The Human Protein Atlas contains information for a large majority of all human protein-coding genes regarding the expression and localization of the corresponding proteins based on both RNA and protein data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HumanProteinAtlas', 'domain': 'proteinatlas.org'})">Human Protein Atlas</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/protein/5006265,5051630,6562431,6636522,9188298,12643959,33392681,47125350,56743466,60459556,77157094,89243550,111494038,116284119,119616826,119616827,189066559,224763882,225543525,410066725,410066727,410066729" class="mim-tip-hint" title="NCBI protein data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NCBI Protein', 'domain': 'ncbi.nlm.nih.gov'})">NCBI Protein</a></div>
<div><a href="https://www.uniprot.org/uniprotkb/Q9Y6L6" class="mim-tip-hint" title="Comprehensive protein sequence and functional information, including supporting data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UniProt', 'domain': 'uniprot.org'})">UniProt</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimGeneInfo">
<span class="panel-title">
<span class="small">
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<div style="display: table-row">
<div id="mimGeneInfoLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Gene Info</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimGeneInfoLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="http://biogps.org/#goto=genereport&id=10599" class="mim-tip-hint" title="The Gene Portal Hub; customizable portal of gene and protein function information." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'BioGPS', 'domain': 'biogps.org'})">BioGPS</a></div>
<div><a href="https://www.ensembl.org/Homo_sapiens/Gene/Summary?db=core;g=ENSG00000134538;t=ENST00000256958" class="mim-tip-hint" title="Orthologs, paralogs, regulatory regions, and splice variants." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Ensembl', 'domain': 'ensembl.org'})">Ensembl</a></div>
<div><a href="https://www.genecards.org/cgi-bin/carddisp.pl?gene=SLCO1B1" class="mim-tip-hint" title="The Human Genome Compendium; web-based cards integrating automatically mined information on human genes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GeneCards', 'domain': 'genecards.org'})">GeneCards</a></div>
<div><a href="http://amigo.geneontology.org/amigo/search/annotation?q=SLCO1B1" class="mim-tip-hint" title="Terms, defined using controlled vocabulary, representing gene product properties (biologic process, cellular component, molecular function) across species." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GeneOntology', 'domain': 'amigo.geneontology.org'})">Gene Ontology</a></div>
<div><a href="https://www.genome.jp/dbget-bin/www_bget?hsa+10599" class="mim-tip-hint" title="Kyoto Encyclopedia of Genes and Genomes; diagrams of signaling pathways." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'KEGG', 'domain': 'genome.jp'})">KEGG</a></div>
<dd><a href="http://v1.marrvel.org/search/gene/SLCO1B1" class="mim-tip-hint" title="Model organism Aggregated Resources for Rare Variant ExpLoration." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MARRVEL', 'domain': 'marrvel.org'})">MARRVEL</a></dd>
<dd><a href="https://monarchinitiative.org/NCBIGene:10599" class="mim-tip-hint" title="Monarch Initiative." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Monarch', 'domain': 'monarchinitiative.org'})">Monarch</a></dd>
<div><a href="https://www.ncbi.nlm.nih.gov/gene/10599" class="mim-tip-hint" title="Gene-specific map, sequence, expression, structure, function, citation, and homology data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NCBI Gene', 'domain': 'ncbi.nlm.nih.gov'})">NCBI Gene</a></div>
<div><a href="https://genome.ucsc.edu/cgi-bin/hgGene?db=hg38&hgg_chrom=chr12&hgg_gene=ENST00000256958.3&hgg_start=21131194&hgg_end=21239796&hgg_type=knownGene" class="mim-tip-hint" title="UCSC Genome Bioinformatics; gene-specific structure and function information with links to other databases." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UCSC', 'domain': 'genome.ucsc.edu'})">UCSC</a></div>
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<div class="panel-heading mim-panel-heading" role="tab" id="mimClinicalResources">
<span class="panel-title">
<span class="small">
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<div id="mimClinicalResourcesLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Clinical Resources</div>
</div>
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</span>
</span>
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<div id="mimClinicalResourcesLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel" aria-labelledby="clinicalResources">
<div class="panel-body small mim-panel-body">
<div><a href="https://medlineplus.gov/genetics/gene/slco1b1" class="mim-tip-hint" title="Consumer-friendly information about the effects of genetic variation on human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MedlinePlus Genetics', 'domain': 'medlineplus.gov'})">MedlinePlus Genetics</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/gtr/all/tests/?term=604843[mim]" class="mim-tip-hint" title="Genetic Testing Registry." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GTR', 'domain': 'ncbi.nlm.nih.gov'})">GTR</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimVariation">
<span class="panel-title">
<span class="small">
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<span id="mimVariationLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9660;</span> Variation
</a>
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<div id="mimVariationLinksFold" class="panel-collapse collapse in mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.ncbi.nlm.nih.gov/clinvar?term=604843[MIM]" class="mim-tip-hint" title="ClinVar aggregates information about sequence variation and its relationship to human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">ClinVar</a></div>
<div><a href="https://gnomad.broadinstitute.org/gene/ENSG00000134538" class="mim-tip-hint" title="The Genome Aggregation Database (gnomAD), Broad Institute." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'gnomAD', 'domain': 'gnomad.broadinstitute.org'})">gnomAD</a></div>
<div><a href="https://www.ebi.ac.uk/gwas/search?query=SLCO1B1" class="mim-tip-hint" title="GWAS Catalog; NHGRI-EBI Catalog of published genome-wide association studies." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GWAS Catalog', 'domain': 'gwascatalog.org'})">GWAS Catalog&nbsp;</a></div>
<div><a href="https://www.gwascentral.org/search?q=SLCO1B1" class="mim-tip-hint" title="GWAS Central; summary level genotype-to-phenotype information from genetic association studies." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GWAS Central', 'domain': 'gwascentral.org'})">GWAS Central&nbsp;</a></div>
<div><a href="http://www.hgmd.cf.ac.uk/ac/gene.php?gene=SLCO1B1" class="mim-tip-hint" title="Human Gene Mutation Database; published mutations causing or associated with human inherited disease; disease-associated/functional polymorphisms." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGMD', 'domain': 'hgmd.cf.ac.uk'})">HGMD</a></div>
<div><a href="https://evs.gs.washington.edu/EVS/PopStatsServlet?searchBy=Gene+Hugo&target=SLCO1B1&upstreamSize=0&downstreamSize=0&x=0&y=0" class="mim-tip-hint" title="National Heart, Lung, and Blood Institute Exome Variant Server." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NHLBI EVS', 'domain': 'evs.gs.washington.edu'})">NHLBI EVS</a></div>
<div><a href="https://www.pharmgkb.org/gene/PA134865839" class="mim-tip-hint" title="Pharmacogenomics Knowledge Base; curated and annotated information regarding the effects of human genetic variations on drug response." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PharmGKB', 'domain': 'pharmgkb.org'})">PharmGKB</a></div>
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<div class="panel-heading mim-panel-heading" role="tab" id="mimAnimalModels">
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<div id="mimAnimalModelsLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Animal Models</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimAnimalModelsLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.alliancegenome.org/gene/HGNC:10959" class="mim-tip-hint" title="Search Across Species; explore model organism and human comparative genomics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Alliance Genome', 'domain': 'alliancegenome.org'})">Alliance Genome</a></div>
<div><a href="https://flybase.org/reports/FBgn0034715.html" class="mim-tip-hint" title="A Database of Drosophila Genes and Genomes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'FlyBase', 'domain': 'flybase.org'})">FlyBase</a></div>
<div><a href="https://www.mousephenotype.org/data/genes/MGI:1351899" class="mim-tip-hint" title="International Mouse Phenotyping Consortium." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'IMPC', 'domain': 'knockoutmouse.org'})">IMPC</a></div>
<div><a href="http://v1.marrvel.org/search/gene/SLCO1B1#HomologGenesPanel" class="mim-tip-hint" title="Model organism Aggregated Resources for Rare Variant ExpLoration." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MARRVEL', 'domain': 'marrvel.org'})">MARRVEL</a></div>
<div><a href="http://www.informatics.jax.org/marker/MGI:1351899" class="mim-tip-hint" title="Mouse Genome Informatics; international database resource for the laboratory mouse, including integrated genetic, genomic, and biological data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MGI Mouse Gene', 'domain': 'informatics.jax.org'})">MGI Mouse Gene</a></div>
<div><a href="https://www.mmrrc.org/catalog/StrainCatalogSearchForm.php?search_query=" class="mim-tip-hint" title="Mutant Mouse Resource & Research Centers." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MMRRC', 'domain': 'mmrrc.org'})">MMRRC</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/gene/10599/ortholog/" class="mim-tip-hint" title="Orthologous genes at NCBI." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NCBI Orthologs', 'domain': 'ncbi.nlm.nih.gov'})">NCBI Orthologs</a></div>
<div><a href="https://www.orthodb.org/?ncbi=10599" class="mim-tip-hint" title="Hierarchical catalogue of orthologs." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'OrthoDB', 'domain': 'orthodb.org'})">OrthoDB</a></div>
<div><a href="mim#WormbaseGeneFold" id="mimWormbaseGeneToggle" data-toggle="collapse" class="mim-tip-hint mimTriangleToggle" title="Database of the biology and genome of Caenorhabditis elegans and related nematodes."><span id="mimWormbaseGeneToggleTriangle" class="small" style="margin-left: -0.8em;">&#9658;</span>Wormbase Gene</div>
<div id="mimWormbaseGeneFold" class="collapse">
<div style="margin-left: 0.5em;"><a href="https://wormbase.org/db/gene/gene?name=WBGene00009023;class=Gene" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Wormbase Gene', 'domain': 'wormbase.org'})">WBGene00009023&nbsp;</a></div><div style="margin-left: 0.5em;"><a href="https://wormbase.org/db/gene/gene?name=WBGene00018566;class=Gene" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Wormbase Gene', 'domain': 'wormbase.org'})">WBGene00018566&nbsp;</a></div>
</div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimCellularPathways">
<span class="panel-title">
<span class="small">
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<div id="mimCellularPathwaysLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Cellular Pathways</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimCellularPathwaysLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.genome.jp/dbget-bin/get_linkdb?-t+pathway+hsa:10599" class="mim-tip-hint" title="Kyoto Encyclopedia of Genes and Genomes; diagrams of signaling pathways." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'KEGG', 'domain': 'genome.jp'})">KEGG</a></div>
<div><a href="https://reactome.org/content/query?q=SLCO1B1&species=Homo+sapiens&types=Reaction&types=Pathway&cluster=true" class="definition" title="Protein-specific information in the context of relevant cellular pathways." target="_blank" onclick="gtag('event', 'mim_outbound', {{'name': 'Reactome', 'domain': 'reactome.org'}})">Reactome</a></div>
</div>
</div>
</div>
</div>
</div>
</div>
<span>
<span class="mim-tip-bottom" qtip_title="<strong>Looking for this gene or this phenotype in other resources?</strong>" qtip_text="Select a related resource from the dropdown menu and click for a targeted link to information directly relevant.">
&nbsp;
</span>
</span>
</div>
<div class="col-lg-8 col-lg-pull-2 col-md-8 col-md-pull-2 col-sm-8 col-sm-pull-2 col-xs-12">
<div>
<a id="title" class="mim-anchor"></a>
<div>
<a id="number" class="mim-anchor"></a>
<div class="text-right">
&nbsp;
</div>
<div>
<span class="h3">
<span class="mim-font mim-tip-hint" title="Gene description">
<span class="text-danger"><strong>*</strong></span>
604843
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
SOLUTE CARRIER ORGANIC ANION TRANSPORTER FAMILY, MEMBER 1B1; SLCO1B1
</span>
</h3>
</div>
<div>
<br />
</div>
<div>
<a id="alternativeTitles" class="mim-anchor"></a>
<div>
<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
</span>
</p>
</div>
<div>
<h4>
<span class="mim-font">
LIVER-SPECIFIC TRANSPORTER 1; LST1<br />
ORGANIC ANION TRANSPORTER 2; OATP2<br />
ORGANIC ANION TRANSPORTER C; OATPC<br />
ORGANIC ANION TRANSPORTER 1B1; OATP1B1<br />
SOLUTE CARRIER FAMILY 21 (ORGANIC ANION TRANSPORTER), MEMBER 6, FORMERLY; SLC21A6, FORMERLY
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<a id="approvedGeneSymbols" class="mim-anchor"></a>
<p>
<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: <a href="https://www.genenames.org/tools/search/#!/genes?query=SLCO1B1" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">SLCO1B1</a></em></strong>
</span>
</p>
</div>
<div>
<a id="cytogeneticLocation" class="mim-anchor"></a>
<p>
<span class="mim-text-font">
<strong>
<em>
Cytogenetic location: <a href="/geneMap/12/220?start=-3&limit=10&highlight=220">12p12.1</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chr12:21131194-21239796&dgv=pack&knownGene=pack&omimGene=pack" class="mim-tip-hint" title="UCSC Genome Browser; reference sequences and working draft assemblies for a large collection of genomes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UCSC Genome Browser', 'domain': 'genome.ucsc.edu'})">12:21,131,194-21,239,796</a> </span>
</em>
</strong>
<a href="https://www.ncbi.nlm.nih.gov/" target="_blank" class="small"> (from NCBI) </a>
</span>
</p>
</div>
<div>
<br />
</div>
<div>
<a id="geneMap" class="mim-anchor"></a>
<div style="margin-bottom: 10px;">
<span class="h4 mim-font">
<strong>Gene-Phenotype Relationships</strong>
</span>
</div>
<div>
<table class="table table-bordered table-condensed table-hover small mim-table-padding">
<thead>
<tr class="active">
<th>
Location
</th>
<th>
Phenotype
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="1">
<span class="mim-font">
<a href="/geneMap/12/220?start=-3&limit=10&highlight=220">
12p12.1
</a>
</span>
</td>
<td>
<span class="mim-font">
Hyperbilirubinemia, Rotor type, digenic
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/237450"> 237450 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Digenic recessive">DR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known">3</abbr>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group">
<button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
PheneGene Graphics <span class="caret"></span>
</button>
<ul class="dropdown-menu" style="width: 17em;">
<li><a href="/graph/linear/604843" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/604843" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
</ul>
</div>
<span class="glyphicon glyphicon-question-sign mim-tip-hint" title="OMIM PheneGene graphics depict relationships between phenotypes, groups of related phenotypes (Phenotypic Series), and genes.<br /><a href='/static/omim/pdf/OMIM_Graphics.pdf' target='_blank'>A quick reference overview and guide (PDF)</a>"></span>
</div>
<div>
<br />
</div>
<div>
<a id="text" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<span class="mim-tip-floating" qtip_title="<strong>Looking For More References?</strong>" qtip_text="Click the 'reference plus' icon &lt;span class='glyphicon glyphicon-plus-sign'&gt;&lt;/span&gt at the end of each OMIM text paragraph to see more references related to the content of the preceding paragraph.">
<strong>TEXT</strong>
</span>
</span>
</h4>
<div>
<a id="cloning" class="mim-anchor"></a>
<h4 href="#mimCloningFold" id="mimCloningToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimCloningToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Cloning and Expression</strong>
</span>
</h4>
</div>
<div id="mimCloningFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p>By searching an EST database for organic anion transporter (OATP, or SLC21A3; <a href="/entry/602883">602883</a>)- and prostaglandin transporter (SLC21A2; <a href="/entry/601460">601460</a>)-related sequences, <a href="#1" class="mim-tip-reference" title="Abe, T., Kakyo, M., Tokui, T., Nakagomi, R., Nishio, T., Nakai, D., Nomura, H., Unno, M., Suzuki, M., Naitoh, T., Matsuno, S., Yawo, H. &lt;strong&gt;Identification of a novel gene family encoding human liver-specific organic anion transporter LST-1.&lt;/strong&gt; J. Biol. Chem. 274: 17159-17163, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10358072/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;10358072&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.274.24.17159&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="10358072">Abe et al. (1999)</a> identified ESTs encoding SLC21A6, which they called LST1. The SLC21A6 gene encodes a deduced 691-amino acid protein containing 12 transmembrane domains, 7 putative N-glycosylation sites in the extracellular loops, and 2 potential phosphorylation sites. Northern blot analysis detected major 3.0- and minor 4.8-kb SLC21A6 transcripts exclusively in liver, in contrast to the more widely expressed SLC21A3. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10358072" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>By searching an EST database using the OATP sequence as the probe, <a href="#2" class="mim-tip-reference" title="Konig, J., Cui, Y., Nies, A. T., Keppler, D. &lt;strong&gt;A novel human organic anion transporting polypeptide localized to the basolateral hepatocyte membrane.&lt;/strong&gt; Am. J. Physiol. Gastrointest. Liver Physiol. 278: G156-G164, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10644574/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;10644574&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1152/ajpgi.2000.278.1.G156&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="10644574">Konig et al. (2000)</a> identified an EST encoding SLC21A6, which they called OATP2. The authors indicated that the SLC21A6 protein contains 6 putative N-glycosylation sites in the extracellular loops. Northern blot analysis detected a 2.8-kb SLC21A6 transcript, likely to correspond to the fully spliced mRNA, and a 4.5-kb SLC21A6 transcript, likely to correspond to a partially or unspliced mRNA; both transcripts were detected only in liver. Western blot analysis detected an SLC21A6 protein of 84 kD that was reduced to 58 kD by deglycosylation. Confocal immunofluorescence analyses revealed expression of SLC21A6 on the basolateral membranes but not the canalicular domain of hepatocytes. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10644574" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<div>
<a id="mapping" class="mim-anchor"></a>
<h4 href="#mimMappingFold" id="mimMappingToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Mapping</strong>
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<span class="mim-text-font">
<p>By radiation hybrid analysis, <a href="#5" class="mim-tip-reference" title="Tamai, I., Nezu, J., Uchino, H., Sai, Y., Oku, A., Shimane, M., Tsuji, A. &lt;strong&gt;Molecular identification and characterization of novel members of the human organic anion transporter (OATP) family.&lt;/strong&gt; Biochem. Biophys. Res. Commun. 273: 251-260, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10873595/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;10873595&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1006/bbrc.2000.2922&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="10873595">Tamai et al. (2000)</a> mapped the SLCO1B1 gene to chromosome 12, between markers D12S358 and D12S1596. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10873595" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="geneFunction" class="mim-anchor"></a>
<h4 href="#mimGeneFunctionFold" id="mimGeneFunctionToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimGeneFunctionToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
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<strong>Gene Function</strong>
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<p><a href="#1" class="mim-tip-reference" title="Abe, T., Kakyo, M., Tokui, T., Nakagomi, R., Nishio, T., Nakai, D., Nomura, H., Unno, M., Suzuki, M., Naitoh, T., Matsuno, S., Yawo, H. &lt;strong&gt;Identification of a novel gene family encoding human liver-specific organic anion transporter LST-1.&lt;/strong&gt; J. Biol. Chem. 274: 17159-17163, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10358072/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;10358072&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.274.24.17159&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="10358072">Abe et al. (1999)</a> found that SLC21A6 transported eicosanoids, thyroid hormones, and conjugated steroids, particularly 17-beta-glucuronosyl estradiol, in a sodium-independent manner. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10358072" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#5" class="mim-tip-reference" title="Tamai, I., Nezu, J., Uchino, H., Sai, Y., Oku, A., Shimane, M., Tsuji, A. &lt;strong&gt;Molecular identification and characterization of novel members of the human organic anion transporter (OATP) family.&lt;/strong&gt; Biochem. Biophys. Res. Commun. 273: 251-260, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10873595/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;10873595&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1006/bbrc.2000.2922&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="10873595">Tamai et al. (2000)</a> overexpressed OATPC in HEK293 cells and found that it mediated transport of estrone-3-sulfate, estradiol-17 beta-glucuronide, benzylpenicillin, and, more weakly, prostaglandin E2. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10873595" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#8" class="mim-tip-reference" title="Wang, P., Kim, R. B., Chowdhury, J. R., Wolkoff, A. W. &lt;strong&gt;The human organic anion transport protein SLC21A6 is not sufficient for bilirubin transport.&lt;/strong&gt; J. Biol. Chem. 278: 20695-20699, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12670950/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;12670950&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.M301100200&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="12670950">Wang et al. (2003)</a> found that HeLa and HEK293 cells transfected with human SLC21A6 acquired the ability to transport the synthetic organic anionic dye sulfobromophthalein, but not the natural pigment bilirubin. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12670950" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In a series of mouse knockout studies, <a href="#7" class="mim-tip-reference" title="van de Steeg, E., Stranecky, V., Hartmannova, H., Noskova, L., Hrebicek, M., Wagenaar, E., van Esch, A., de Waart, D. R., Oude Elferink, R. P. J., Kenworthy, K. E., Sticova, E., Al-Edreesi, M., Knisely, A. S., Kmoch, S., Jirsa, M., Schinkel, A. H. &lt;strong&gt;Complete OATP1B1 and OATP1B3 deficiency causes human Rotor syndrome by interrupting conjugated bilirubin reuptake into the liver.&lt;/strong&gt; J. Clin. Invest. 122: 519-528, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22232210/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;22232210&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=22232210[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1172/JCI59526&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="22232210">van de Steeg et al. (2012)</a> demonstrated that the human SLCO1B1 and SLCO1B3 (<a href="/entry/605495">605495</a>) genes encode proteins expressed at the hepatic sinusoidal membrane that effectively reabsorb bilirubin glucuronides from plasma into the liver. The studies suggested that ABCC3 (<a href="/entry/604323">604323</a>), SLCO1B1, and SLCO1B3 may form a liver-blood shuttling loop for bilirubin glucuronide, in which ABCC3 secretes conjugated bilirubin back into the blood, and the SLC proteins reabsorb it in downstream hepatocytes, thus facilitating efficient detoxification. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22232210" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="molecularGenetics" class="mim-anchor"></a>
<h4 href="#mimMolecularGeneticsFold" id="mimMolecularGeneticsToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimMolecularGeneticsToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
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<strong>Molecular Genetics</strong>
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<div id="mimMolecularGeneticsFold" class="collapse in mimTextToggleFold">
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<p><strong><em>Rotor-Type Hyperbilirubinemia, Digenic</em></strong></p><p>
In affected members of 8 families with Rotor-type hyperbilirubinemia (HBLRR; <a href="/entry/237450">237450</a>), <a href="#7" class="mim-tip-reference" title="van de Steeg, E., Stranecky, V., Hartmannova, H., Noskova, L., Hrebicek, M., Wagenaar, E., van Esch, A., de Waart, D. R., Oude Elferink, R. P. J., Kenworthy, K. E., Sticova, E., Al-Edreesi, M., Knisely, A. S., Kmoch, S., Jirsa, M., Schinkel, A. H. &lt;strong&gt;Complete OATP1B1 and OATP1B3 deficiency causes human Rotor syndrome by interrupting conjugated bilirubin reuptake into the liver.&lt;/strong&gt; J. Clin. Invest. 122: 519-528, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22232210/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;22232210&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=22232210[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1172/JCI59526&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="22232210">van de Steeg et al. (2012)</a> identified 2 different homozygous mutations in 2 different genes: the SLCO1B1 gene (<a href="#0001">604843.0001</a>-<a href="#0003">604843.0003</a>) and the SLCO1B3 gene (<a href="/entry/605495#0001">605495.0001</a>-<a href="/entry/605495#0003">605495.0003</a>). Three of the families, who were Saudi Arabian, were homozygous for a 405-kb deletion on chromosome 12 encompassing exons 3 to 15 of SLCO1B3 (<a href="/entry/605495">605495</a>) and the whole of SLCO1B1, as well as homozygous for a splice site mutation in SLCO1B1 (<a href="#0002">604843.0002</a>). Segregation patterns in the families indicated that the disorder can only be caused by complete and simultaneous deficiencies of these 2 genes, which mediate uptake and clearance of conjugated bilirubin across the hepatic sinusoidal membranes into bile. Affected individuals showed conjugated hyperbilirubinemia, delayed plasma clearance of an anionic diagnostic dye (bromsulfthalein), and increased urinary excretion of coproporphyrin I. <a href="#7" class="mim-tip-reference" title="van de Steeg, E., Stranecky, V., Hartmannova, H., Noskova, L., Hrebicek, M., Wagenaar, E., van Esch, A., de Waart, D. R., Oude Elferink, R. P. J., Kenworthy, K. E., Sticova, E., Al-Edreesi, M., Knisely, A. S., Kmoch, S., Jirsa, M., Schinkel, A. H. &lt;strong&gt;Complete OATP1B1 and OATP1B3 deficiency causes human Rotor syndrome by interrupting conjugated bilirubin reuptake into the liver.&lt;/strong&gt; J. Clin. Invest. 122: 519-528, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22232210/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;22232210&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=22232210[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1172/JCI59526&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="22232210">Van de Steeg et al. (2012)</a> suggested that individuals with Rotor syndrome may also be at increased risk for drug toxicity, since these proteins are involved in the clearance of drug conjugates. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22232210" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><strong><em>Associations Pending Confirmation</em></strong></p><p>
By Western blot analysis of 81 human liver samples, <a href="#3" class="mim-tip-reference" title="Michalski, C., Cui, Y., Nies, A. T., Nuessler, A. K., Neuhaus, P., Zanger, U. M., Klein, K., Eichelbaum, M., Keppler, D., Konig, J. &lt;strong&gt;A naturally occurring mutation in the SLC21A6 gene causing impaired membrane localization of the hepatocyte uptake transporter.&lt;/strong&gt; J. Biol. Chem. 277: 43058-43063, 2002.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12196548/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;12196548&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.M207735200&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="12196548">Michalski et al. (2002)</a> identified 1 with a reduced amount of SLC21A6 protein. The SLC21A6 cDNA from this sample contained 5 basepair changes in 1 allele, and 3 of the mutations resulted in amino acid substitutions. Two of the amino acid changes, asn130 to asp (N130D) and pro155 to thr (P155T), were polymorphisms, but the third, a leu193-to-arg (L193R) substitution, appeared to be a rare mutation. When transfected into MDCK canine kidney cells, SLC21A6 with either N130D or P155T showed altered substrate specificity compared with wildtype SLC21A6. In contrast, SLC21A6 with L193R was more weakly expressed at the protein level and showed altered cellular distribution. Wildtype SLC21A6 was expressed at the basolateral membrane of normal human liver and in transfected MDCK cells, but both SLC21A6 with the mutant haplotype and SLC21A6 with only L193R were retained intracellularly, although their corresponding mRNA levels appeared unchanged. In transfected MDCK cells, neither SLC21A6 with the mutant haplotype nor SLC21A6 with L193R showed transport activity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12196548" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#4" class="mim-tip-reference" title="Takane, H., Miyata, M., Burioka, N., Shigemasa, C., Shimizu, E., Otsubo, K., Ieiri, I. &lt;strong&gt;Pharmacogenetic determinants of variability in lipid-lowering response to pravastatin therapy.&lt;/strong&gt; J. Hum. Genet. 51: 822-826, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16917677/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;16917677&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s10038-006-0025-1&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="16917677">Takane et al. (2006)</a> genotyped 33 hypercholesterolemic patients for variants in the SLCO1B1 gene and analyzed their response to the cholesterol-lowering drug pravastatin. Patients who were carriers of the so-called *15 allele had significantly smaller reductions in total and LDL cholesterol than noncarriers at 8 weeks, although there were no significant differences at 1 year posttreatment. <a href="#4" class="mim-tip-reference" title="Takane, H., Miyata, M., Burioka, N., Shigemasa, C., Shimizu, E., Otsubo, K., Ieiri, I. &lt;strong&gt;Pharmacogenetic determinants of variability in lipid-lowering response to pravastatin therapy.&lt;/strong&gt; J. Hum. Genet. 51: 822-826, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16917677/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;16917677&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s10038-006-0025-1&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="16917677">Takane et al. (2006)</a> suggested that the SLCO1B1*15 allele is associated with a slow response to pravastatin. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16917677" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#6" class="mim-tip-reference" title="The SEARCH Collaborative Group. &lt;strong&gt;SLCO1B1 variants and statin-induced myopathy--a genomewide study.&lt;/strong&gt; New Eng. J. Med. 359: 789-799, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18650507/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;18650507&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa0801936&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="18650507">The SEARCH Collaborative Group (2008)</a> identified a significant association between common variants in the SLCO1B1 gene and statin-induced myopathy. A genomewide scan among 85 individuals with myopathy identified a noncoding SNP in intron 11 of the SLCO1B1 gene (<a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs4363657;toggle_HGVS_names=open" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'dbSNP\', \'domain\': \'ensembl.org\'})">rs4363657</a>). Further analysis found a significant association between myopathy and a nonsynonymous SNP in exon 6 (<a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs4149056;toggle_HGVS_names=open" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'dbSNP\', \'domain\': \'ensembl.org\'})">rs4149056</a>). The odds ratio for myopathy was 4.5 per copy of the C allele and 16.9 among CC homozygotes as compared with TT homozygotes (p = 2 x 10(-9)). Replication was achieved in a group of 16,664 individuals, although the odds ratio decreased to 2.6 per C allele. However, the study also indicated that the risk of myopathy may be substantially increased in patients who take 80 mg of simvastatin daily, as well as in those who are also receiving certain other drugs. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18650507" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>Rifampin has concentration-dependent activity against Mycobacterium tuberculosis. However, marked variation of rifampin concentration occurs among individuals, and decreased response to therapy has been observed among patients at African sites compared with non-African sites. <a href="#9" class="mim-tip-reference" title="Weiner, M., Peloquin, C., Burman, W., Luo, C.-C., Engle, M., Prihoda, T. J., Mac Kenzie, W. R., Bliven-Sizemore, E., Johnson, J. L., Vernon, A. &lt;strong&gt;Effects of tuberculosis, race, and human gene SLCO1B1 polymorphisms on rifampin concentrations.&lt;/strong&gt; Antimicrob. Agents Chemother. 54: 4192-4200, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20660695/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;20660695&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=20660695[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1128/AAC.00353-10&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="20660695">Weiner et al. (2010)</a> evaluated rifampin pharmacokinetics in 72 adult patients with tuberculosis (TB; see <a href="/entry/607948">607948</a>) from Africa, North America, and Spain and in 16 healthy controls from North America. They found that rifampin pharmacokinetics were similar between TB patients and controls. However, in multivariable analyses, the plasma area under the concentration-time curve from 0 to 24 hours (AUC(0-24)) for rifampin was significantly affected by rifampin dosage, the presence of TB by geographic region, and a SNP in the SLCO1B1 gene, C to A at cDNA position 463 (463C-A; <a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs11045849;toggle_HGVS_names=open" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'dbSNP\', \'domain\': \'ensembl.org\'})">rs11045849</a>), which results in a P155T substitution. The adjusted AUC(0-24) was lowest in the 37 TB patients from Africa compared with 33 non-African TB patients and the controls (P = 0.02, ANCOVA). Furthermore, the adjusted AUC(0-24) was 36% lower in 15 participants heterozygous for the SLCO1B1 SNP, i.e., genotype 463CA, compared with 71 people with genotype 463CC (P = 0.001, ANCOVA). The 463CA genotype was more frequent among Africans and individuals of African descent than non-Africans (24% vs 10%, respectively; P = 0.09, chi-square test). SNPs in another organic ion transporter peptide, SLCO1B3 (<a href="/entry/605495">605495</a>), and in P-glycoprotein (ABCB1; <a href="/entry/171050">171050</a>), both of which, like SLCO1B1, are induced by chronic rifampin use via activation of NR1I2 (<a href="/entry/603065">603065</a>), were not associated with rifampin concentration. <a href="#9" class="mim-tip-reference" title="Weiner, M., Peloquin, C., Burman, W., Luo, C.-C., Engle, M., Prihoda, T. J., Mac Kenzie, W. R., Bliven-Sizemore, E., Johnson, J. L., Vernon, A. &lt;strong&gt;Effects of tuberculosis, race, and human gene SLCO1B1 polymorphisms on rifampin concentrations.&lt;/strong&gt; Antimicrob. Agents Chemother. 54: 4192-4200, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20660695/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;20660695&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=20660695[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1128/AAC.00353-10&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="20660695">Weiner et al. (2010)</a> concluded that the 463C-A SNP in the SLCO1B1 gene is a significant factor affecting the rifampin concentration achieved in TB patients. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20660695" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>For discussion of a possible association between variation in the SLCO1B1 gene and serum bilirubin level, see <a href="/entry/601816">601816</a>.</p>
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<span id="mimAllelicVariantsToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>ALLELIC VARIANTS (<a href="/help/faq#1_4"></strong>
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<strong>3 Selected Examples</a>):</strong>
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<a href="/allelicVariants/604843" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=604843[MIM]" class="btn btn-default mim-tip-hint" role="button" title="ClinVar aggregates information about sequence variation and its relationship to human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">ClinVar</a>
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<a id="0001" class="mim-anchor"></a>
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<strong>.0001&nbsp;HYPERBILIRUBINEMIA, ROTOR TYPE, DIGENIC</strong>
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SLCO1B1, ARG580TER (<a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs71581941;toggle_HGVS_names=open" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'dbSNP\', \'domain\': \'ensembl.org\'})">rs71581941</a>)
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs71581941 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs71581941;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://gnomad.broadinstitute.org/variant/rs71581941?dataset=gnomad_r2_1" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'gnomad.broadinstitute.org'})" style="padding-left: 8px;"><span class="text-primary">&#x25cf;</span> gnomAD</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs71581941" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'www.ncbi.nlm.nih.gov'})">NCBI</a></li> <li><a href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Human&db=hg38&clinvar=pack&omimAvSnp=pack&position=rs71581941" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
<span class="mim-text-font">
<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000023390 OR RCV001815169 OR RCV003914860" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000023390, RCV001815169, RCV003914860" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000023390...</a>
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<p>In affected members of 3 families from central Europe with Rotor-type hyperbilirubinemia (HBLRR; <a href="/entry/237450">237450</a>), <a href="#7" class="mim-tip-reference" title="van de Steeg, E., Stranecky, V., Hartmannova, H., Noskova, L., Hrebicek, M., Wagenaar, E., van Esch, A., de Waart, D. R., Oude Elferink, R. P. J., Kenworthy, K. E., Sticova, E., Al-Edreesi, M., Knisely, A. S., Kmoch, S., Jirsa, M., Schinkel, A. H. &lt;strong&gt;Complete OATP1B1 and OATP1B3 deficiency causes human Rotor syndrome by interrupting conjugated bilirubin reuptake into the liver.&lt;/strong&gt; J. Clin. Invest. 122: 519-528, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22232210/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;22232210&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=22232210[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1172/JCI59526&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="22232210">van de Steeg et al. (2012)</a> identified 2 different homozygous mutations in 2 different genes. One was a homozygous 1738C-T transition in the SLCO1B1 gene, resulting in an arg580-to-ter (R580X) substitution (<a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs71581941;toggle_HGVS_names=open" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'dbSNP\', \'domain\': \'ensembl.org\'})">rs71581941</a>) predicted to remove the C-terminal one-and-one-half transmembrane domains, and the other was a homozygous 7.2-kb deletion within the SLCO1B3 gene (<a href="/entry/605495#0001">605495.0001</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22232210" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="0002" class="mim-anchor"></a>
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<strong>.0002&nbsp;HYPERBILIRUBINEMIA, ROTOR TYPE, DIGENIC</strong>
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SLCO1B1, IVS5DS, G-T, +1
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs77271279 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs77271279;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://gnomad.broadinstitute.org/variant/rs77271279?dataset=gnomad_r2_1" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'gnomad.broadinstitute.org'})" style="padding-left: 8px;"><span class="text-primary">&#x25cf;</span> gnomAD</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs77271279" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'www.ncbi.nlm.nih.gov'})">NCBI</a></li> <li><a href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Human&db=hg38&clinvar=pack&omimAvSnp=pack&position=rs77271279" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
<span class="mim-text-font">
<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000275027 OR RCV004757993" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000275027, RCV004757993" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000275027...</a>
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<span class="mim-text-font">
<p>In affected individuals from 3 Saudi Arabian families with Rotor-type hyperbilirubinemia (HBLRR; <a href="/entry/237450">237450</a>), <a href="#7" class="mim-tip-reference" title="van de Steeg, E., Stranecky, V., Hartmannova, H., Noskova, L., Hrebicek, M., Wagenaar, E., van Esch, A., de Waart, D. R., Oude Elferink, R. P. J., Kenworthy, K. E., Sticova, E., Al-Edreesi, M., Knisely, A. S., Kmoch, S., Jirsa, M., Schinkel, A. H. &lt;strong&gt;Complete OATP1B1 and OATP1B3 deficiency causes human Rotor syndrome by interrupting conjugated bilirubin reuptake into the liver.&lt;/strong&gt; J. Clin. Invest. 122: 519-528, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22232210/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;22232210&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=22232210[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1172/JCI59526&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="22232210">van de Steeg et al. (2012)</a> identified 2 different homozygous mutations in 2 different genes. One was a homozygous G-to-T transversion in intron 5 (481+1G-T) of the SLCO1B1 gene, predicted to result in a dysfunctional RNA or protein, and the other was a homozygous 405-kb deletion encompassing exons 3 to 15 of the SLCO1B3 gene (<a href="/entry/605495">605495</a>) and the whole of SLCO1B1. This same genotype was also found in a patient from central Europe with the condition. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22232210" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="0003" class="mim-anchor"></a>
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<strong>.0003&nbsp;HYPERBILIRUBINEMIA, ROTOR TYPE, DIGENIC</strong>
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SLCO1B1, ARG253TER
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs183501729 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs183501729;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://gnomad.broadinstitute.org/variant/rs183501729?dataset=gnomad_r2_1" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'gnomad.broadinstitute.org'})" style="padding-left: 8px;"><span class="text-primary">&#x25cf;</span> gnomAD</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs183501729" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'www.ncbi.nlm.nih.gov'})">NCBI</a></li> <li><a href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Human&db=hg38&clinvar=pack&omimAvSnp=pack&position=rs183501729" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
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<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000023392" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000023392" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000023392</a>
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<p>In a Filipino patient with Rotor-type hyperbilirubinemia (HBLRR; <a href="/entry/237450">237450</a>), <a href="#7" class="mim-tip-reference" title="van de Steeg, E., Stranecky, V., Hartmannova, H., Noskova, L., Hrebicek, M., Wagenaar, E., van Esch, A., de Waart, D. R., Oude Elferink, R. P. J., Kenworthy, K. E., Sticova, E., Al-Edreesi, M., Knisely, A. S., Kmoch, S., Jirsa, M., Schinkel, A. H. &lt;strong&gt;Complete OATP1B1 and OATP1B3 deficiency causes human Rotor syndrome by interrupting conjugated bilirubin reuptake into the liver.&lt;/strong&gt; J. Clin. Invest. 122: 519-528, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22232210/&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed&#x27;, &#x27;domain&#x27;: &#x27;pubmed.ncbi.nlm.nih.gov&#x27;})&quot;&gt;22232210&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=22232210[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1172/JCI59526&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="22232210">van de Steeg et al. (2012)</a> identified 2 different homozygous mutations in 2 different genes. One was a 757C-T transition in exon 8 of the SLCO1B1 gene, resulting in an arg253-to-ter (R253X) substitution and truncation of the protein before the C-terminal 7 transmembrane domains, and the other was a homozygous splice site mutation in the SLCO1B3 gene (<a href="/entry/605495#0002">605495.0002</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22232210" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>REFERENCES</strong>
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<a id="1" class="mim-anchor"></a>
<a id="Abe1999" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Abe, T., Kakyo, M., Tokui, T., Nakagomi, R., Nishio, T., Nakai, D., Nomura, H., Unno, M., Suzuki, M., Naitoh, T., Matsuno, S., Yawo, H.
<strong>Identification of a novel gene family encoding human liver-specific organic anion transporter LST-1.</strong>
J. Biol. Chem. 274: 17159-17163, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10358072/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10358072</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10358072" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1074/jbc.274.24.17159" target="_blank">Full Text</a>]
</p>
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<a id="2" class="mim-anchor"></a>
<a id="Konig2000" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Konig, J., Cui, Y., Nies, A. T., Keppler, D.
<strong>A novel human organic anion transporting polypeptide localized to the basolateral hepatocyte membrane.</strong>
Am. J. Physiol. Gastrointest. Liver Physiol. 278: G156-G164, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10644574/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10644574</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10644574" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1152/ajpgi.2000.278.1.G156" target="_blank">Full Text</a>]
</p>
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<a id="3" class="mim-anchor"></a>
<a id="Michalski2002" class="mim-anchor"></a>
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Michalski, C., Cui, Y., Nies, A. T., Nuessler, A. K., Neuhaus, P., Zanger, U. M., Klein, K., Eichelbaum, M., Keppler, D., Konig, J.
<strong>A naturally occurring mutation in the SLC21A6 gene causing impaired membrane localization of the hepatocyte uptake transporter.</strong>
J. Biol. Chem. 277: 43058-43063, 2002.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12196548/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12196548</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12196548" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1074/jbc.M207735200" target="_blank">Full Text</a>]
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<a id="Takane2006" class="mim-anchor"></a>
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<p class="mim-text-font">
Takane, H., Miyata, M., Burioka, N., Shigemasa, C., Shimizu, E., Otsubo, K., Ieiri, I.
<strong>Pharmacogenetic determinants of variability in lipid-lowering response to pravastatin therapy.</strong>
J. Hum. Genet. 51: 822-826, 2006.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/16917677/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">16917677</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16917677" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/s10038-006-0025-1" target="_blank">Full Text</a>]
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<a id="5" class="mim-anchor"></a>
<a id="Tamai2000" class="mim-anchor"></a>
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Tamai, I., Nezu, J., Uchino, H., Sai, Y., Oku, A., Shimane, M., Tsuji, A.
<strong>Molecular identification and characterization of novel members of the human organic anion transporter (OATP) family.</strong>
Biochem. Biophys. Res. Commun. 273: 251-260, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10873595/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10873595</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10873595" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1006/bbrc.2000.2922" target="_blank">Full Text</a>]
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<a id="6" class="mim-anchor"></a>
<a id="{The SEARCH Collaborative Group}2008" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
The SEARCH Collaborative Group.
<strong>SLCO1B1 variants and statin-induced myopathy--a genomewide study.</strong>
New Eng. J. Med. 359: 789-799, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18650507/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18650507</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18650507" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1056/NEJMoa0801936" target="_blank">Full Text</a>]
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<a id="7" class="mim-anchor"></a>
<a id="van de Steeg2012" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
van de Steeg, E., Stranecky, V., Hartmannova, H., Noskova, L., Hrebicek, M., Wagenaar, E., van Esch, A., de Waart, D. R., Oude Elferink, R. P. J., Kenworthy, K. E., Sticova, E., Al-Edreesi, M., Knisely, A. S., Kmoch, S., Jirsa, M., Schinkel, A. H.
<strong>Complete OATP1B1 and OATP1B3 deficiency causes human Rotor syndrome by interrupting conjugated bilirubin reuptake into the liver.</strong>
J. Clin. Invest. 122: 519-528, 2012.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/22232210/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">22232210</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=22232210[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22232210" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1172/JCI59526" target="_blank">Full Text</a>]
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<a id="Wang2003" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Wang, P., Kim, R. B., Chowdhury, J. R., Wolkoff, A. W.
<strong>The human organic anion transport protein SLC21A6 is not sufficient for bilirubin transport.</strong>
J. Biol. Chem. 278: 20695-20699, 2003.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12670950/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12670950</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12670950" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1074/jbc.M301100200" target="_blank">Full Text</a>]
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<a id="9" class="mim-anchor"></a>
<a id="Weiner2010" class="mim-anchor"></a>
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<p class="mim-text-font">
Weiner, M., Peloquin, C., Burman, W., Luo, C.-C., Engle, M., Prihoda, T. J., Mac Kenzie, W. R., Bliven-Sizemore, E., Johnson, J. L., Vernon, A.
<strong>Effects of tuberculosis, race, and human gene SLCO1B1 polymorphisms on rifampin concentrations.</strong>
Antimicrob. Agents Chemother. 54: 4192-4200, 2010.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/20660695/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">20660695</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=20660695[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20660695" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1128/AAC.00353-10" target="_blank">Full Text</a>]
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<a href="#mimCollapseContributors" role="button" data-toggle="collapse"> Contributors: </a>
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<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Cassandra L. Kniffin - updated : 1/11/2012
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Paul J. Converse - updated : 11/15/2010<br>George E. Tiller - updated : 4/1/2010<br>Patricia A. Hartz - updated : 12/31/2008<br>Patricia A. Hartz - updated : 10/29/2008<br>Cassandra L. Kniffin - updated : 8/26/2008<br>Marla J. F. O'Neill - updated : 12/13/2006
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Creation Date:
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Paul J. Converse : 4/17/2000
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carol : 09/08/2021
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carol : 10/13/2015<br>alopez : 7/24/2013<br>terry : 7/5/2012<br>carol : 1/12/2012<br>ckniffin : 1/11/2012<br>mgross : 11/30/2010<br>mgross : 11/30/2010<br>mgross : 11/30/2010<br>terry : 11/15/2010<br>wwang : 4/15/2010<br>terry : 4/1/2010<br>mgross : 1/5/2009<br>terry : 12/31/2008<br>mgross : 11/21/2008<br>terry : 10/29/2008<br>wwang : 9/3/2008<br>ckniffin : 8/26/2008<br>wwang : 12/18/2006<br>terry : 12/13/2006<br>mgross : 11/4/2004<br>cwells : 11/12/2003<br>alopez : 10/8/2002<br>mgross : 4/18/2000<br>mgross : 4/17/2000
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<strong>*</strong> 604843
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<span class="mim-font">
SOLUTE CARRIER ORGANIC ANION TRANSPORTER FAMILY, MEMBER 1B1; SLCO1B1
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<em>Alternative titles; symbols</em>
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<span class="mim-font">
LIVER-SPECIFIC TRANSPORTER 1; LST1<br />
ORGANIC ANION TRANSPORTER 2; OATP2<br />
ORGANIC ANION TRANSPORTER C; OATPC<br />
ORGANIC ANION TRANSPORTER 1B1; OATP1B1<br />
SOLUTE CARRIER FAMILY 21 (ORGANIC ANION TRANSPORTER), MEMBER 6, FORMERLY; SLC21A6, FORMERLY
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<strong><em>HGNC Approved Gene Symbol: SLCO1B1</em></strong>
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<strong>
<em>
Cytogenetic location: 12p12.1
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : 12:21,131,194-21,239,796 </span>
</em>
</strong>
<span class="small">(from NCBI)</span>
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<strong>Gene-Phenotype Relationships</strong>
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Location
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Phenotype
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Phenotype <br /> MIM number
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Inheritance
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Phenotype <br /> mapping key
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12p12.1
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<span class="mim-font">
Hyperbilirubinemia, Rotor type, digenic
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<span class="mim-font">
237450
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Digenic recessive
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3
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<span class="mim-font">
<strong>TEXT</strong>
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<strong>Cloning and Expression</strong>
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<p>By searching an EST database for organic anion transporter (OATP, or SLC21A3; 602883)- and prostaglandin transporter (SLC21A2; 601460)-related sequences, Abe et al. (1999) identified ESTs encoding SLC21A6, which they called LST1. The SLC21A6 gene encodes a deduced 691-amino acid protein containing 12 transmembrane domains, 7 putative N-glycosylation sites in the extracellular loops, and 2 potential phosphorylation sites. Northern blot analysis detected major 3.0- and minor 4.8-kb SLC21A6 transcripts exclusively in liver, in contrast to the more widely expressed SLC21A3. </p><p>By searching an EST database using the OATP sequence as the probe, Konig et al. (2000) identified an EST encoding SLC21A6, which they called OATP2. The authors indicated that the SLC21A6 protein contains 6 putative N-glycosylation sites in the extracellular loops. Northern blot analysis detected a 2.8-kb SLC21A6 transcript, likely to correspond to the fully spliced mRNA, and a 4.5-kb SLC21A6 transcript, likely to correspond to a partially or unspliced mRNA; both transcripts were detected only in liver. Western blot analysis detected an SLC21A6 protein of 84 kD that was reduced to 58 kD by deglycosylation. Confocal immunofluorescence analyses revealed expression of SLC21A6 on the basolateral membranes but not the canalicular domain of hepatocytes. </p>
</span>
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<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
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<span class="mim-text-font">
<p>By radiation hybrid analysis, Tamai et al. (2000) mapped the SLCO1B1 gene to chromosome 12, between markers D12S358 and D12S1596. </p>
</span>
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<h4>
<span class="mim-font">
<strong>Gene Function</strong>
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</h4>
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<span class="mim-text-font">
<p>Abe et al. (1999) found that SLC21A6 transported eicosanoids, thyroid hormones, and conjugated steroids, particularly 17-beta-glucuronosyl estradiol, in a sodium-independent manner. </p><p>Tamai et al. (2000) overexpressed OATPC in HEK293 cells and found that it mediated transport of estrone-3-sulfate, estradiol-17 beta-glucuronide, benzylpenicillin, and, more weakly, prostaglandin E2. </p><p>Wang et al. (2003) found that HeLa and HEK293 cells transfected with human SLC21A6 acquired the ability to transport the synthetic organic anionic dye sulfobromophthalein, but not the natural pigment bilirubin. </p><p>In a series of mouse knockout studies, van de Steeg et al. (2012) demonstrated that the human SLCO1B1 and SLCO1B3 (605495) genes encode proteins expressed at the hepatic sinusoidal membrane that effectively reabsorb bilirubin glucuronides from plasma into the liver. The studies suggested that ABCC3 (604323), SLCO1B1, and SLCO1B3 may form a liver-blood shuttling loop for bilirubin glucuronide, in which ABCC3 secretes conjugated bilirubin back into the blood, and the SLC proteins reabsorb it in downstream hepatocytes, thus facilitating efficient detoxification. </p>
</span>
<div>
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<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
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<span class="mim-text-font">
<p><strong><em>Rotor-Type Hyperbilirubinemia, Digenic</em></strong></p><p>
In affected members of 8 families with Rotor-type hyperbilirubinemia (HBLRR; 237450), van de Steeg et al. (2012) identified 2 different homozygous mutations in 2 different genes: the SLCO1B1 gene (604843.0001-604843.0003) and the SLCO1B3 gene (605495.0001-605495.0003). Three of the families, who were Saudi Arabian, were homozygous for a 405-kb deletion on chromosome 12 encompassing exons 3 to 15 of SLCO1B3 (605495) and the whole of SLCO1B1, as well as homozygous for a splice site mutation in SLCO1B1 (604843.0002). Segregation patterns in the families indicated that the disorder can only be caused by complete and simultaneous deficiencies of these 2 genes, which mediate uptake and clearance of conjugated bilirubin across the hepatic sinusoidal membranes into bile. Affected individuals showed conjugated hyperbilirubinemia, delayed plasma clearance of an anionic diagnostic dye (bromsulfthalein), and increased urinary excretion of coproporphyrin I. Van de Steeg et al. (2012) suggested that individuals with Rotor syndrome may also be at increased risk for drug toxicity, since these proteins are involved in the clearance of drug conjugates. </p><p><strong><em>Associations Pending Confirmation</em></strong></p><p>
By Western blot analysis of 81 human liver samples, Michalski et al. (2002) identified 1 with a reduced amount of SLC21A6 protein. The SLC21A6 cDNA from this sample contained 5 basepair changes in 1 allele, and 3 of the mutations resulted in amino acid substitutions. Two of the amino acid changes, asn130 to asp (N130D) and pro155 to thr (P155T), were polymorphisms, but the third, a leu193-to-arg (L193R) substitution, appeared to be a rare mutation. When transfected into MDCK canine kidney cells, SLC21A6 with either N130D or P155T showed altered substrate specificity compared with wildtype SLC21A6. In contrast, SLC21A6 with L193R was more weakly expressed at the protein level and showed altered cellular distribution. Wildtype SLC21A6 was expressed at the basolateral membrane of normal human liver and in transfected MDCK cells, but both SLC21A6 with the mutant haplotype and SLC21A6 with only L193R were retained intracellularly, although their corresponding mRNA levels appeared unchanged. In transfected MDCK cells, neither SLC21A6 with the mutant haplotype nor SLC21A6 with L193R showed transport activity. </p><p>Takane et al. (2006) genotyped 33 hypercholesterolemic patients for variants in the SLCO1B1 gene and analyzed their response to the cholesterol-lowering drug pravastatin. Patients who were carriers of the so-called *15 allele had significantly smaller reductions in total and LDL cholesterol than noncarriers at 8 weeks, although there were no significant differences at 1 year posttreatment. Takane et al. (2006) suggested that the SLCO1B1*15 allele is associated with a slow response to pravastatin. </p><p>The SEARCH Collaborative Group (2008) identified a significant association between common variants in the SLCO1B1 gene and statin-induced myopathy. A genomewide scan among 85 individuals with myopathy identified a noncoding SNP in intron 11 of the SLCO1B1 gene (rs4363657). Further analysis found a significant association between myopathy and a nonsynonymous SNP in exon 6 (rs4149056). The odds ratio for myopathy was 4.5 per copy of the C allele and 16.9 among CC homozygotes as compared with TT homozygotes (p = 2 x 10(-9)). Replication was achieved in a group of 16,664 individuals, although the odds ratio decreased to 2.6 per C allele. However, the study also indicated that the risk of myopathy may be substantially increased in patients who take 80 mg of simvastatin daily, as well as in those who are also receiving certain other drugs. </p><p>Rifampin has concentration-dependent activity against Mycobacterium tuberculosis. However, marked variation of rifampin concentration occurs among individuals, and decreased response to therapy has been observed among patients at African sites compared with non-African sites. Weiner et al. (2010) evaluated rifampin pharmacokinetics in 72 adult patients with tuberculosis (TB; see 607948) from Africa, North America, and Spain and in 16 healthy controls from North America. They found that rifampin pharmacokinetics were similar between TB patients and controls. However, in multivariable analyses, the plasma area under the concentration-time curve from 0 to 24 hours (AUC(0-24)) for rifampin was significantly affected by rifampin dosage, the presence of TB by geographic region, and a SNP in the SLCO1B1 gene, C to A at cDNA position 463 (463C-A; rs11045849), which results in a P155T substitution. The adjusted AUC(0-24) was lowest in the 37 TB patients from Africa compared with 33 non-African TB patients and the controls (P = 0.02, ANCOVA). Furthermore, the adjusted AUC(0-24) was 36% lower in 15 participants heterozygous for the SLCO1B1 SNP, i.e., genotype 463CA, compared with 71 people with genotype 463CC (P = 0.001, ANCOVA). The 463CA genotype was more frequent among Africans and individuals of African descent than non-Africans (24% vs 10%, respectively; P = 0.09, chi-square test). SNPs in another organic ion transporter peptide, SLCO1B3 (605495), and in P-glycoprotein (ABCB1; 171050), both of which, like SLCO1B1, are induced by chronic rifampin use via activation of NR1I2 (603065), were not associated with rifampin concentration. Weiner et al. (2010) concluded that the 463C-A SNP in the SLCO1B1 gene is a significant factor affecting the rifampin concentration achieved in TB patients. </p><p>For discussion of a possible association between variation in the SLCO1B1 gene and serum bilirubin level, see 601816.</p>
</span>
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</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>3 Selected Examples):</strong>
</span>
</h4>
<div>
<p />
</div>
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<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; HYPERBILIRUBINEMIA, ROTOR TYPE, DIGENIC</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLCO1B1, ARG580TER ({dbSNP rs71581941})
<br />
SNP: rs71581941,
gnomAD: rs71581941,
ClinVar: RCV000023390, RCV001815169, RCV003914860
</span>
</div>
<div>
<span class="mim-text-font">
<p>In affected members of 3 families from central Europe with Rotor-type hyperbilirubinemia (HBLRR; 237450), van de Steeg et al. (2012) identified 2 different homozygous mutations in 2 different genes. One was a homozygous 1738C-T transition in the SLCO1B1 gene, resulting in an arg580-to-ter (R580X) substitution (rs71581941) predicted to remove the C-terminal one-and-one-half transmembrane domains, and the other was a homozygous 7.2-kb deletion within the SLCO1B3 gene (605495.0001). </p>
</span>
</div>
<div>
<br />
</div>
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<div>
<div>
<h4>
<span class="mim-font">
<strong>.0002 &nbsp; HYPERBILIRUBINEMIA, ROTOR TYPE, DIGENIC</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLCO1B1, IVS5DS, G-T, +1
<br />
SNP: rs77271279,
gnomAD: rs77271279,
ClinVar: RCV000275027, RCV004757993
</span>
</div>
<div>
<span class="mim-text-font">
<p>In affected individuals from 3 Saudi Arabian families with Rotor-type hyperbilirubinemia (HBLRR; 237450), van de Steeg et al. (2012) identified 2 different homozygous mutations in 2 different genes. One was a homozygous G-to-T transversion in intron 5 (481+1G-T) of the SLCO1B1 gene, predicted to result in a dysfunctional RNA or protein, and the other was a homozygous 405-kb deletion encompassing exons 3 to 15 of the SLCO1B3 gene (605495) and the whole of SLCO1B1. This same genotype was also found in a patient from central Europe with the condition. </p>
</span>
</div>
<div>
<br />
</div>
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<div>
<div>
<h4>
<span class="mim-font">
<strong>.0003 &nbsp; HYPERBILIRUBINEMIA, ROTOR TYPE, DIGENIC</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLCO1B1, ARG253TER
<br />
SNP: rs183501729,
gnomAD: rs183501729,
ClinVar: RCV000023392
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a Filipino patient with Rotor-type hyperbilirubinemia (HBLRR; 237450), van de Steeg et al. (2012) identified 2 different homozygous mutations in 2 different genes. One was a 757C-T transition in exon 8 of the SLCO1B1 gene, resulting in an arg253-to-ter (R253X) substitution and truncation of the protein before the C-terminal 7 transmembrane domains, and the other was a homozygous splice site mutation in the SLCO1B3 gene (605495.0002). </p>
</span>
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<h4>
<span class="mim-font">
<strong>REFERENCES</strong>
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</h4>
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<p />
</div>
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<ol>
<li>
<p class="mim-text-font">
Abe, T., Kakyo, M., Tokui, T., Nakagomi, R., Nishio, T., Nakai, D., Nomura, H., Unno, M., Suzuki, M., Naitoh, T., Matsuno, S., Yawo, H.
<strong>Identification of a novel gene family encoding human liver-specific organic anion transporter LST-1.</strong>
J. Biol. Chem. 274: 17159-17163, 1999.
[PubMed: 10358072]
[Full Text: https://doi.org/10.1074/jbc.274.24.17159]
</p>
</li>
<li>
<p class="mim-text-font">
Konig, J., Cui, Y., Nies, A. T., Keppler, D.
<strong>A novel human organic anion transporting polypeptide localized to the basolateral hepatocyte membrane.</strong>
Am. J. Physiol. Gastrointest. Liver Physiol. 278: G156-G164, 2000.
[PubMed: 10644574]
[Full Text: https://doi.org/10.1152/ajpgi.2000.278.1.G156]
</p>
</li>
<li>
<p class="mim-text-font">
Michalski, C., Cui, Y., Nies, A. T., Nuessler, A. K., Neuhaus, P., Zanger, U. M., Klein, K., Eichelbaum, M., Keppler, D., Konig, J.
<strong>A naturally occurring mutation in the SLC21A6 gene causing impaired membrane localization of the hepatocyte uptake transporter.</strong>
J. Biol. Chem. 277: 43058-43063, 2002.
[PubMed: 12196548]
[Full Text: https://doi.org/10.1074/jbc.M207735200]
</p>
</li>
<li>
<p class="mim-text-font">
Takane, H., Miyata, M., Burioka, N., Shigemasa, C., Shimizu, E., Otsubo, K., Ieiri, I.
<strong>Pharmacogenetic determinants of variability in lipid-lowering response to pravastatin therapy.</strong>
J. Hum. Genet. 51: 822-826, 2006.
[PubMed: 16917677]
[Full Text: https://doi.org/10.1007/s10038-006-0025-1]
</p>
</li>
<li>
<p class="mim-text-font">
Tamai, I., Nezu, J., Uchino, H., Sai, Y., Oku, A., Shimane, M., Tsuji, A.
<strong>Molecular identification and characterization of novel members of the human organic anion transporter (OATP) family.</strong>
Biochem. Biophys. Res. Commun. 273: 251-260, 2000.
[PubMed: 10873595]
[Full Text: https://doi.org/10.1006/bbrc.2000.2922]
</p>
</li>
<li>
<p class="mim-text-font">
The SEARCH Collaborative Group.
<strong>SLCO1B1 variants and statin-induced myopathy--a genomewide study.</strong>
New Eng. J. Med. 359: 789-799, 2008.
[PubMed: 18650507]
[Full Text: https://doi.org/10.1056/NEJMoa0801936]
</p>
</li>
<li>
<p class="mim-text-font">
van de Steeg, E., Stranecky, V., Hartmannova, H., Noskova, L., Hrebicek, M., Wagenaar, E., van Esch, A., de Waart, D. R., Oude Elferink, R. P. J., Kenworthy, K. E., Sticova, E., Al-Edreesi, M., Knisely, A. S., Kmoch, S., Jirsa, M., Schinkel, A. H.
<strong>Complete OATP1B1 and OATP1B3 deficiency causes human Rotor syndrome by interrupting conjugated bilirubin reuptake into the liver.</strong>
J. Clin. Invest. 122: 519-528, 2012.
[PubMed: 22232210]
[Full Text: https://doi.org/10.1172/JCI59526]
</p>
</li>
<li>
<p class="mim-text-font">
Wang, P., Kim, R. B., Chowdhury, J. R., Wolkoff, A. W.
<strong>The human organic anion transport protein SLC21A6 is not sufficient for bilirubin transport.</strong>
J. Biol. Chem. 278: 20695-20699, 2003.
[PubMed: 12670950]
[Full Text: https://doi.org/10.1074/jbc.M301100200]
</p>
</li>
<li>
<p class="mim-text-font">
Weiner, M., Peloquin, C., Burman, W., Luo, C.-C., Engle, M., Prihoda, T. J., Mac Kenzie, W. R., Bliven-Sizemore, E., Johnson, J. L., Vernon, A.
<strong>Effects of tuberculosis, race, and human gene SLCO1B1 polymorphisms on rifampin concentrations.</strong>
Antimicrob. Agents Chemother. 54: 4192-4200, 2010.
[PubMed: 20660695]
[Full Text: https://doi.org/10.1128/AAC.00353-10]
</p>
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