nih-gov/www.ncbi.nlm.nih.gov/omim/600184

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Entry
- *600184 - CARNITINE ACETYLTRANSFERASE; CRAT
- OMIM
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<span class="h4">*600184</span>
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<strong>Table of Contents</strong>
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<a href="#cloning">Cloning and Expression</a>
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<a href="#molecularGenetics">Molecular Genetics</a>
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<span class="small">
<a href="#mimProteinLinksFold" id="mimProteinLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<span id="mimProteinLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9658;</span> Protein
</a>
</span>
</span>
</div>
<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=08971&isoform_id=08971_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/CRAT" 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/927415,13111705,30582441,119608279,119608280,119608281,215274265,530390532,1034663787,1519244299,1676317855,1676317899,1676318606,1676319746,1676319909,1676319938,2217375505,2217375508,2217375510,2462622651,2462622653,2462622655,2462622657,2462622659" 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/P43155" 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">
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<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=1384" 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=ENSG00000095321;t=ENST00000318080" 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=CRAT" 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=CRAT" 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+1384" 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/CRAT" 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:1384" 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/1384" 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=chr9&hgg_gene=ENST00000318080.7&hgg_start=129094794&hgg_end=129110793&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>
</div>
</div>
</div>
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<div class="panel-heading mim-panel-heading" role="tab" id="mimClinicalResources">
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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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<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://www.ncbi.nlm.nih.gov/gtr/all/tests/?term=600184[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>
</span>
</span>
</div>
<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=600184[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/ENSG00000095321" 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=CRAT" 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=CRAT" 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=CRAT" 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=CRAT&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/PA26862" 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>
</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="mimAnimalModels">
<span class="panel-title">
<span class="small">
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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:2342" 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/FBgn0032471.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:109501" 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/CRAT#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:109501" 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/1384/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=1384" 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="https://wormbase.org/db/gene/gene?name=WBGene00007175;class=Gene" class="mim-tip-hint" title="Database of the biology and genome of Caenorhabditis elegans and related nematodes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name'{'name': 'Wormbase Gene', 'domain': 'wormbase.org'})">Wormbase Gene</a></div>
<div><a href="https://zfin.org/ZDB-GENE-040912-162" class="mim-tip-hint" title="The Zebrafish Model Organism Database." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ZFin', 'domain': 'zfin.org'})">ZFin</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="mimCellularPathways">
<span class="panel-title">
<span class="small">
<a href="#mimCellularPathwaysLinksFold" id="mimCellularPathwaysLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
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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:1384" 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=CRAT&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>
600184
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
CARNITINE ACETYLTRANSFERASE; CRAT
</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">
CAT1
</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=CRAT" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">CRAT</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/9/564?start=-3&limit=10&highlight=564">9q34.11</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chr9:129094794-129110793&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'})">9:129,094,794-129,110,793</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/9/564?start=-3&limit=10&highlight=564">
9q34.11
</a>
</span>
</td>
<td>
<span class="mim-font">
?Neurodegeneration with brain iron accumulation 8
<span class="mim-tip-hint" title="A question mark (?) indicates that the relationship between the phenotype and gene is provisional">
<span class="glyphicon glyphicon-question-sign" aria-hidden="true"></span>
</span>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617917"> 617917 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</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/600184" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/600184" 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="description" class="mim-anchor"></a>
<h4 href="#mimDescriptionFold" id="mimDescriptionToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimDescriptionToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Description</strong>
</span>
</h4>
</div>
<div id="mimDescriptionFold" class="collapse in ">
<span class="mim-text-font">
<p>Carnitine acyltransferases are a group of enzymes that catalyze the reversible transfer of acyl groups from an acyl-CoA thioester to carnitine, thus forming the corresponding acylcarnitine. These enzymes can be distinguished according to their substrate specificity in carnitine palmitoyltransferase (see CPT1, <a href="/entry/600528">600528</a> and CPT2, <a href="/entry/600650">600650</a>), carnitine octanoyltransferase (CROT; <a href="/entry/606090">606090</a>), and carnitine acetyltransferase (<a href="https://enzyme.expasy.org/EC/2.3.1.7" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'EC\', \'domain\': \'expasy.org\'})">EC 2.3.1.7</a>). CRAT is a key enzyme for metabolic pathways involved with the control of the acyl-CoA/CoA ratio in mitochondria, peroxisomes, and endoplasmic reticulum.</p>
</span>
<div>
<br />
</div>
</div>
<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><a href="#1" class="mim-tip-reference" title="Corti, O., Finocchiaro, G., Rossi, E., Zuffardi, O., DiDonato, S. &lt;strong&gt;Molecular cloning of cDNAs encoding human carnitine acetyltransferase and mapping of the corresponding gene to chromosome 9q34.1.&lt;/strong&gt; Genomics 23: 94-99, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7829107/&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;7829107&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1006/geno.1994.1463&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="7829107">Corti et al. (1994)</a> used a combination of PCR screening of cDNA libraries and RT-PCR to clone the human cDNA for human carnitine acetyltransferase. The cDNA (2,436 bp) hybridized to an mRNA species of approximately 2.9 kb that is particularly abundant in skeletal muscle and encodes a 68-kD protein containing a peroxisomal targeting signal. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7829107" 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="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>
</span>
</h4>
</div>
<div id="mimGeneFunctionFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p><a href="#5" class="mim-tip-reference" title="van der Leij, F. R., Huijkman, N. C. A., Boomsma, C., Kuipers, J. R. G., Bartelds, B. &lt;strong&gt;Genomics of the human carnitine acyltransferase genes.&lt;/strong&gt; Molec. Genet. Metab. 71: 139-153, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11001805/&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;11001805&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1006/mgme.2000.3055&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="11001805">Van der Leij et al. (2000)</a> reviewed the function, structural features, and phylogenetics of human carnitine acyltransferase genes, including CRAT. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11001805" 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>Acetylcarnitine, which can be a precursor for acetylcholine synthesis catalyzed by choline acetyltransferase, is thought to slow the rate of mental deterioration in Alzheimer patients, and <a href="#4" class="mim-tip-reference" title="Kalaria, R. N., Harik, S. I. &lt;strong&gt;Carnitine acetyltransferase activity in the human brain and its microvessels is decreased in Alzheimer&#x27;s disease.&lt;/strong&gt; Ann. Neurol. 32: 583-586, 1992.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/1456745/&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;1456745&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.410320417&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="1456745">Kalaria and Harik (1992)</a> found decreased function of CRAT in the brain of Alzheimer patients. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1456745" 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="biochemicalFeatures" class="mim-anchor"></a>
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<strong>Biochemical Features</strong>
</span>
</h4>
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<div id="mimBiochemicalFeaturesFold" class="collapse in mimTextToggleFold">
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<p><a href="#3" class="mim-tip-reference" title="Jogl, G., Tong, L. &lt;strong&gt;Crystal structure of carnitine acetyltransferase and implications for the catalytic mechanism and fatty acid transport.&lt;/strong&gt; Cell 112: 113-122, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12526798/&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;12526798&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0092-8674(02)01228-x&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="12526798">Jogl and Tong (2003)</a> reported the crystal structures of murine Crat alone and in complex with its substrate carnitine or with CoA. The Crat structure contains 2 domains that share the same backbone fold, similar to the structures of chloramphenicol acetyltransferase and dihydrolipoyl transacetylase (see <a href="/entry/608770">608770</a>). The active site is located at the interface between the 2 domains. Carnitine and CoA are bound in deep channels in the enzyme, on opposite sides of the catalytic his343 residue. The authors concluded that the structural information provides a molecular basis for understanding the catalysis by CARTs and for designing their inhibitors, and it specifically suggests that the substrate carnitine may assist the catalysis by stabilizing the oxyanion in the reaction intermediate. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12526798" 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>
</span>
<div>
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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">
<span id="mimMappingToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
</div>
<div id="mimMappingFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p>By FISH, <a href="#1" class="mim-tip-reference" title="Corti, O., Finocchiaro, G., Rossi, E., Zuffardi, O., DiDonato, S. &lt;strong&gt;Molecular cloning of cDNAs encoding human carnitine acetyltransferase and mapping of the corresponding gene to chromosome 9q34.1.&lt;/strong&gt; Genomics 23: 94-99, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7829107/&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;7829107&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1006/geno.1994.1463&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="7829107">Corti et al. (1994)</a> mapped the CRAT gene to chromosome 9q34.1. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7829107" 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>
</span>
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<div>
<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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</h4>
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<div id="mimMolecularGeneticsFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p>In a girl (patient 3), born of consanguineous Turkish parents, with neurodegeneration with brain iron accumulation-8 (NBIA8; <a href="/entry/617917">617917</a>), <a href="#2" class="mim-tip-reference" title="Drecourt, A., Babdor, J., Dussiot, M., Petit, F., Goudin, N., Garfa-Traore, M., Habarou, F., Bole-Feysot, C., Nitschke, P., Ottolenghi, C., Metodiev, M. D., Serre, V., Desguerre, I., Boddaert, N., Hermine, O., Munnich, A., Rotig, A. &lt;strong&gt;Impaired transferrin receptor palmitoylation and recycling in neurodegeneration with brain iron accumulation.&lt;/strong&gt; Am. J. Hum. Genet. 102: 266-277, 2018.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/29395073/&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;29395073&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ajhg.2018.01.003&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="29395073">Drecourt et al. (2018)</a> identified a homozygous missense mutation in the CRAT gene, resulting in an arg321-to-his (R321H; <a href="#0001">600184.0001</a>). The mutation was found by exome sequencing. Patient cells showed decreased beta-oxidation of palmitate compared to controls, and knockdown of CRAT using siRNA in HeLa cells resulted in markedly decreased beta-oxidation compared to controls. These defects could be rescued by wildtype CRAT. Patient fibroblasts showed a 10-fold increase in iron content compared to controls when incubated with iron. In response to high iron, patient cells showed a normal and appropriate decrease in transferrin receptor (TFRC; <a href="/entry/190010">190010</a>) mRNA levels, but the amount of TFRC did not decrease in patient cells, suggesting impaired posttranslational lysosomal-based degradation of TFRC. Patient cells showed impaired transferrin (<a href="/entry/190000">190000</a>) and TFRC trafficking and recycling compared to controls, with clustering at the surface and in the perinuclear region, as well as abnormally enlarged lysosomes. Patient cells also showed decreased palmitoylation of TFRC, which is necessary for regulating TFRC endocytosis. Addition of the antimalarial agent artesunate rescued abnormal TFRC palmitoylation and decreased iron content in cultured patient fibroblasts. Similar findings were observed in studies of cells from NBIA patients due to mutations in other NBIA-associated genes. <a href="#2" class="mim-tip-reference" title="Drecourt, A., Babdor, J., Dussiot, M., Petit, F., Goudin, N., Garfa-Traore, M., Habarou, F., Bole-Feysot, C., Nitschke, P., Ottolenghi, C., Metodiev, M. D., Serre, V., Desguerre, I., Boddaert, N., Hermine, O., Munnich, A., Rotig, A. &lt;strong&gt;Impaired transferrin receptor palmitoylation and recycling in neurodegeneration with brain iron accumulation.&lt;/strong&gt; Am. J. Hum. Genet. 102: 266-277, 2018.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/29395073/&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;29395073&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ajhg.2018.01.003&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="29395073">Drecourt et al. (2018)</a> concluded that certain forms of NBIA result from defective endosomal recycling and should be regarded as a disorder of cellular trafficking. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=29395073" 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="allelicVariants" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<span href="#mimAllelicVariantsFold" id="mimAllelicVariantsToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>ALLELIC VARIANTS (<a href="/help/faq#1_4"></strong>
</span>
<strong>1 Selected Example</a>):</strong>
</span>
</h4>
<div>
<p />
</div>
<div id="mimAllelicVariantsFold" class="collapse in mimTextToggleFold">
<div>
<a href="/allelicVariants/600184" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=600184[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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<div>
<a id="0001" class="mim-anchor"></a>
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<span class="mim-font">
<strong>.0001&nbsp;NEURODEGENERATION WITH BRAIN IRON ACCUMULATION 8 (1 patient)</strong>
</span>
</h4>
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<span class="mim-text-font">
<div style="float: left;">
CRAT, ARG321HIS (<a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs138665095;toggle_HGVS_names=open" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'dbSNP\', \'domain\': \'ensembl.org\'})">rs138665095</a>)
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&nbsp;&nbsp;
<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> rs138665095 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs138665095;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/rs138665095?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=rs138665095" 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=rs138665095" 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=RCV000594657 OR RCV000709992 OR RCV002531113" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000594657, RCV000709992, RCV002531113" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000594657...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a girl (patient 3), born of consanguineous Turkish parents, with neurodegeneration with brain iron accumulation-8 (NBIA8; <a href="/entry/617917">617917</a>), <a href="#2" class="mim-tip-reference" title="Drecourt, A., Babdor, J., Dussiot, M., Petit, F., Goudin, N., Garfa-Traore, M., Habarou, F., Bole-Feysot, C., Nitschke, P., Ottolenghi, C., Metodiev, M. D., Serre, V., Desguerre, I., Boddaert, N., Hermine, O., Munnich, A., Rotig, A. &lt;strong&gt;Impaired transferrin receptor palmitoylation and recycling in neurodegeneration with brain iron accumulation.&lt;/strong&gt; Am. J. Hum. Genet. 102: 266-277, 2018.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/29395073/&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;29395073&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ajhg.2018.01.003&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="29395073">Drecourt et al. (2018)</a> identified a homozygous c.962G-A transition (c.962G-A, NM_000755.4) in the CRAT gene, resulting in an arg321-to-his (R321H) substitution at a highly conserved residue. The mutation, which was found by exome sequencing, was found at a low frequency in the dbSNP, ExAC, and Exome Sequencing Project (ESP) databases (0.0042% in ExAC and 0.0001 in ESP). It was not found in 200 control chromosomes. Immunoblot analysis failed to detect CRAT in patient fibroblasts. Patient cells showed decreased beta-oxidation of palmitate compared to controls, and knockdown of CRAT using siRNA in HeLa cells resulted in markedly decreased beta-oxidation compared to controls. These defects could be rescued by wildtype CRAT. Patient fibroblasts showed a 10-fold increase in iron content compared to controls when incubated with iron. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=29395073" 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>
</span>
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<div>
<a id="references"class="mim-anchor"></a>
<h4 href="#mimReferencesFold" id="mimReferencesToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span class="mim-font">
<span id="mimReferencesToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>REFERENCES</strong>
</span>
</h4>
<div>
<p />
</div>
<div id="mimReferencesFold" class="collapse in mimTextToggleFold">
<ol>
<li>
<a id="1" class="mim-anchor"></a>
<a id="Corti1994" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Corti, O., Finocchiaro, G., Rossi, E., Zuffardi, O., DiDonato, S.
<strong>Molecular cloning of cDNAs encoding human carnitine acetyltransferase and mapping of the corresponding gene to chromosome 9q34.1.</strong>
Genomics 23: 94-99, 1994.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/7829107/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">7829107</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7829107" 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/geno.1994.1463" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="2" class="mim-anchor"></a>
<a id="Drecourt2018" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Drecourt, A., Babdor, J., Dussiot, M., Petit, F., Goudin, N., Garfa-Traore, M., Habarou, F., Bole-Feysot, C., Nitschke, P., Ottolenghi, C., Metodiev, M. D., Serre, V., Desguerre, I., Boddaert, N., Hermine, O., Munnich, A., Rotig, A.
<strong>Impaired transferrin receptor palmitoylation and recycling in neurodegeneration with brain iron accumulation.</strong>
Am. J. Hum. Genet. 102: 266-277, 2018.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/29395073/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">29395073</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=29395073" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/j.ajhg.2018.01.003" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="3" class="mim-anchor"></a>
<a id="Jogl2003" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Jogl, G., Tong, L.
<strong>Crystal structure of carnitine acetyltransferase and implications for the catalytic mechanism and fatty acid transport.</strong>
Cell 112: 113-122, 2003.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12526798/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12526798</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12526798" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/s0092-8674(02)01228-x" target="_blank">Full Text</a>]
</p>
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<a id="4" class="mim-anchor"></a>
<a id="Kalaria1992" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Kalaria, R. N., Harik, S. I.
<strong>Carnitine acetyltransferase activity in the human brain and its microvessels is decreased in Alzheimer's disease.</strong>
Ann. Neurol. 32: 583-586, 1992.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/1456745/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">1456745</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1456745" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/ana.410320417" target="_blank">Full Text</a>]
</p>
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<a id="5" class="mim-anchor"></a>
<a id="van der Leij2000" class="mim-anchor"></a>
<div class="">
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van der Leij, F. R., Huijkman, N. C. A., Boomsma, C., Kuipers, J. R. G., Bartelds, B.
<strong>Genomics of the human carnitine acyltransferase genes.</strong>
Molec. Genet. Metab. 71: 139-153, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/11001805/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">11001805</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11001805" 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/mgme.2000.3055" target="_blank">Full Text</a>]
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<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
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Cassandra L. Kniffin - updated : 03/23/2018
</span>
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Stylianos E. Antonarakis - updated : 1/15/2003<br>Carol A. Bocchini - updated : 7/9/2001
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Creation Date:
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Victor A. McKusick : 11/8/1994
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alopez : 03/27/2018
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ckniffin : 03/23/2018<br>ckniffin : 07/15/2004<br>mgross : 1/15/2003<br>carol : 8/6/2001<br>carol : 7/9/2001<br>jamie : 1/17/1997<br>mimadm : 9/23/1995<br>mark : 7/16/1995<br>terry : 1/27/1995<br>terry : 11/8/1994
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<h3>
<span class="mim-font">
<strong>*</strong> 600184
</span>
</h3>
</div>
<div>
<h3>
<span class="mim-font">
CARNITINE ACETYLTRANSFERASE; CRAT
</span>
</h3>
</div>
<div>
<br />
</div>
<div>
<div >
<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
</span>
</p>
</div>
<div>
<h4>
<span class="mim-font">
CAT1
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
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<p>
<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: CRAT</em></strong>
</span>
</p>
</div>
<div>
<p>
<span class="mim-text-font">
<strong>
<em>
Cytogenetic location: 9q34.11
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : 9:129,094,794-129,110,793 </span>
</em>
</strong>
<span class="small">(from NCBI)</span>
</span>
</p>
</div>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Gene-Phenotype Relationships</strong>
</span>
</h4>
<div>
<table class="table table-bordered table-condensed 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">
9q34.11
</span>
</td>
<td>
<span class="mim-font">
?Neurodegeneration with brain iron accumulation 8
</span>
</td>
<td>
<span class="mim-font">
617917
</span>
</td>
<td>
<span class="mim-font">
Autosomal recessive
</span>
</td>
<td>
<span class="mim-font">
3
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>TEXT</strong>
</span>
</h4>
<div>
<h4>
<span class="mim-font">
<strong>Description</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Carnitine acyltransferases are a group of enzymes that catalyze the reversible transfer of acyl groups from an acyl-CoA thioester to carnitine, thus forming the corresponding acylcarnitine. These enzymes can be distinguished according to their substrate specificity in carnitine palmitoyltransferase (see CPT1, 600528 and CPT2, 600650), carnitine octanoyltransferase (CROT; 606090), and carnitine acetyltransferase (EC 2.3.1.7). CRAT is a key enzyme for metabolic pathways involved with the control of the acyl-CoA/CoA ratio in mitochondria, peroxisomes, and endoplasmic reticulum.</p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Cloning and Expression</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Corti et al. (1994) used a combination of PCR screening of cDNA libraries and RT-PCR to clone the human cDNA for human carnitine acetyltransferase. The cDNA (2,436 bp) hybridized to an mRNA species of approximately 2.9 kb that is particularly abundant in skeletal muscle and encodes a 68-kD protein containing a peroxisomal targeting signal. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Gene Function</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Van der Leij et al. (2000) reviewed the function, structural features, and phylogenetics of human carnitine acyltransferase genes, including CRAT. </p><p>Acetylcarnitine, which can be a precursor for acetylcholine synthesis catalyzed by choline acetyltransferase, is thought to slow the rate of mental deterioration in Alzheimer patients, and Kalaria and Harik (1992) found decreased function of CRAT in the brain of Alzheimer patients. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Biochemical Features</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Jogl and Tong (2003) reported the crystal structures of murine Crat alone and in complex with its substrate carnitine or with CoA. The Crat structure contains 2 domains that share the same backbone fold, similar to the structures of chloramphenicol acetyltransferase and dihydrolipoyl transacetylase (see 608770). The active site is located at the interface between the 2 domains. Carnitine and CoA are bound in deep channels in the enzyme, on opposite sides of the catalytic his343 residue. The authors concluded that the structural information provides a molecular basis for understanding the catalysis by CARTs and for designing their inhibitors, and it specifically suggests that the substrate carnitine may assist the catalysis by stabilizing the oxyanion in the reaction intermediate. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>By FISH, Corti et al. (1994) mapped the CRAT gene to chromosome 9q34.1. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>In a girl (patient 3), born of consanguineous Turkish parents, with neurodegeneration with brain iron accumulation-8 (NBIA8; 617917), Drecourt et al. (2018) identified a homozygous missense mutation in the CRAT gene, resulting in an arg321-to-his (R321H; 600184.0001). The mutation was found by exome sequencing. Patient cells showed decreased beta-oxidation of palmitate compared to controls, and knockdown of CRAT using siRNA in HeLa cells resulted in markedly decreased beta-oxidation compared to controls. These defects could be rescued by wildtype CRAT. Patient fibroblasts showed a 10-fold increase in iron content compared to controls when incubated with iron. In response to high iron, patient cells showed a normal and appropriate decrease in transferrin receptor (TFRC; 190010) mRNA levels, but the amount of TFRC did not decrease in patient cells, suggesting impaired posttranslational lysosomal-based degradation of TFRC. Patient cells showed impaired transferrin (190000) and TFRC trafficking and recycling compared to controls, with clustering at the surface and in the perinuclear region, as well as abnormally enlarged lysosomes. Patient cells also showed decreased palmitoylation of TFRC, which is necessary for regulating TFRC endocytosis. Addition of the antimalarial agent artesunate rescued abnormal TFRC palmitoylation and decreased iron content in cultured patient fibroblasts. Similar findings were observed in studies of cells from NBIA patients due to mutations in other NBIA-associated genes. Drecourt et al. (2018) concluded that certain forms of NBIA result from defective endosomal recycling and should be regarded as a disorder of cellular trafficking. </p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>1 Selected Example):</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; NEURODEGENERATION WITH BRAIN IRON ACCUMULATION 8 (1 patient)</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
CRAT, ARG321HIS ({dbSNP rs138665095})
<br />
SNP: rs138665095,
gnomAD: rs138665095,
ClinVar: RCV000594657, RCV000709992, RCV002531113
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a girl (patient 3), born of consanguineous Turkish parents, with neurodegeneration with brain iron accumulation-8 (NBIA8; 617917), Drecourt et al. (2018) identified a homozygous c.962G-A transition (c.962G-A, NM_000755.4) in the CRAT gene, resulting in an arg321-to-his (R321H) substitution at a highly conserved residue. The mutation, which was found by exome sequencing, was found at a low frequency in the dbSNP, ExAC, and Exome Sequencing Project (ESP) databases (0.0042% in ExAC and 0.0001 in ESP). It was not found in 200 control chromosomes. Immunoblot analysis failed to detect CRAT in patient fibroblasts. Patient cells showed decreased beta-oxidation of palmitate compared to controls, and knockdown of CRAT using siRNA in HeLa cells resulted in markedly decreased beta-oxidation compared to controls. These defects could be rescued by wildtype CRAT. Patient fibroblasts showed a 10-fold increase in iron content compared to controls when incubated with iron. </p>
</span>
</div>
<div>
<br />
</div>
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>REFERENCES</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<ol>
<li>
<p class="mim-text-font">
Corti, O., Finocchiaro, G., Rossi, E., Zuffardi, O., DiDonato, S.
<strong>Molecular cloning of cDNAs encoding human carnitine acetyltransferase and mapping of the corresponding gene to chromosome 9q34.1.</strong>
Genomics 23: 94-99, 1994.
[PubMed: 7829107]
[Full Text: https://doi.org/10.1006/geno.1994.1463]
</p>
</li>
<li>
<p class="mim-text-font">
Drecourt, A., Babdor, J., Dussiot, M., Petit, F., Goudin, N., Garfa-Traore, M., Habarou, F., Bole-Feysot, C., Nitschke, P., Ottolenghi, C., Metodiev, M. D., Serre, V., Desguerre, I., Boddaert, N., Hermine, O., Munnich, A., Rotig, A.
<strong>Impaired transferrin receptor palmitoylation and recycling in neurodegeneration with brain iron accumulation.</strong>
Am. J. Hum. Genet. 102: 266-277, 2018.
[PubMed: 29395073]
[Full Text: https://doi.org/10.1016/j.ajhg.2018.01.003]
</p>
</li>
<li>
<p class="mim-text-font">
Jogl, G., Tong, L.
<strong>Crystal structure of carnitine acetyltransferase and implications for the catalytic mechanism and fatty acid transport.</strong>
Cell 112: 113-122, 2003.
[PubMed: 12526798]
[Full Text: https://doi.org/10.1016/s0092-8674(02)01228-x]
</p>
</li>
<li>
<p class="mim-text-font">
Kalaria, R. N., Harik, S. I.
<strong>Carnitine acetyltransferase activity in the human brain and its microvessels is decreased in Alzheimer&#x27;s disease.</strong>
Ann. Neurol. 32: 583-586, 1992.
[PubMed: 1456745]
[Full Text: https://doi.org/10.1002/ana.410320417]
</p>
</li>
<li>
<p class="mim-text-font">
van der Leij, F. R., Huijkman, N. C. A., Boomsma, C., Kuipers, J. R. G., Bartelds, B.
<strong>Genomics of the human carnitine acyltransferase genes.</strong>
Molec. Genet. Metab. 71: 139-153, 2000.
[PubMed: 11001805]
[Full Text: https://doi.org/10.1006/mgme.2000.3055]
</p>
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<span class="mim-text-font">
Cassandra L. Kniffin - updated : 03/23/2018<br>Stylianos E. Antonarakis - updated : 1/15/2003<br>Carol A. Bocchini - updated : 7/9/2001
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Creation Date:
</span>
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Victor A. McKusick : 11/8/1994
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