nih-gov/www.ncbi.nlm.nih.gov/omim/130410

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<title>
Entry
- *130410 - ELECTRON TRANSFER FLAVOPROTEIN, BETA POLYPEPTIDE; ETFB
- OMIM
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<span class="h4">*130410</span>
<br />
<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="#description">Description</a>
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<a href="#cloning">Cloning and Expression</a>
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<a href="#geneStructure">Gene Structure</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="#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>
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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=00557&isoform_id=00557_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/ETFB" 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/297902,585110,4467835,4503609,22652459,33341692,48145771,62420877,62739640,62740056,119592410,158257194,193786211,259467771,300639991,1370474660,2462563719" 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/P38117" 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>
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<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=2109" 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=ENSG00000105379;t=ENST00000309244" 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=ETFB" 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=ETFB" 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+2109" 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/ETFB" 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:2109" 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/2109" 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=chr19&hgg_gene=ENST00000600067.1&hgg_start=51345155&hgg_end=51366388&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>
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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>
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<div id="mimClinicalResourcesLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel" aria-labelledby="clinicalResources">
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<div><a href="https://search.clinicalgenome.org/kb/gene-dosage/HGNC:3482" class="mim-tip-hint" title="A ClinGen curated resource of genes and regions of the genome that are dosage sensitive and should be targeted on a cytogenomic array." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinGen Dosage', 'domain': 'dosage.clinicalgenome.org'})">ClinGen Dosage</a></div>
<div><a href="https://search.clinicalgenome.org/kb/genes/HGNC:3482" class="mim-tip-hint" title="A ClinGen curated resource of ratings for the strength of evidence supporting or refuting the clinical validity of the claim(s) that variation in a particular gene causes disease." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinGen Validity', 'domain': 'search.clinicalgenome.org'})">ClinGen Validity</a></div>
<div><a href="https://medlineplus.gov/genetics/gene/etfb" 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=130410[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>
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</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">
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<span id="mimVariationLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9660;</span> Variation
</a>
</span>
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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=130410[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/ENSG00000105379" 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=ETFB" 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=ETFB" 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=ETFB" 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=ETFB&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/PA27898" 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>
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<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<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>
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</a>
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<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:3482" 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/FBgn0039697.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:106098" 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/ETFB#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:106098" 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/2109/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=2109" 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=WBGene00017734;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-040426-1931" 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">
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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://reactome.org/content/query?q=ETFB&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>
130410
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
ELECTRON TRANSFER FLAVOPROTEIN, BETA POLYPEPTIDE; ETFB
</span>
</h3>
</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=ETFB" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">ETFB</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/19/1025?start=-3&limit=10&highlight=1025">19q13.41</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chr19:51345155-51366388&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'})">19:51,345,155-51,366,388</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/19/1025?start=-3&limit=10&highlight=1025">
19q13.41
</a>
</span>
</td>
<td>
<span class="mim-font">
Glutaric acidemia IIB
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/231680"> 231680 </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>
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PheneGene Graphics <span class="caret"></span>
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<li><a href="/graph/linear/130410" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/130410" 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>Electron transfer flavoprotein (ETF) exists in the mitochondrial matrix as a heterodimer of 30-kD alpha subunits (ETFA; <a href="/entry/608053">608053</a>) and 28-kD beta subunits (ETFB) and contains 1 flavin adenine dinucleotide (FAD) and 1 adenosine 5-prime monophosphate (AMP) per heterodimer. ETFDH (<a href="/entry/231675">231675</a>), a 64-kD monomer integrated in the inner mitochondrial membrane, contains 1 molecule of FAD and a 4Fe-4S cluster. Both enzymes are required for electron transfer from at least 9 mitochondrial flavin-containing dehydrogenases to the main respiratory chain. Multiple acyl-CoA dehydrogenation deficiency (MADD; <a href="/entry/231680">231680</a>), also known as glutaric acidemia II or glutaric aciduria II, can be caused by mutation in any of the 3 ETF genes. The disorders resulting from defects in the ETFA, ETFB, and ETFDH genes are referred to as glutaric acidemia IIA, IIB, and IIC, respectively, although there appears to be no difference in the clinical phenotypes.</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="#3" class="mim-tip-reference" title="Finocchiaro, G., Archidiacono, N., Gellera, C., Bloisi, W., Colombo, I., Valdameri, G., Romeo, G., Tanaka, K., Di Donato, S. &lt;strong&gt;Molecular cloning and chromosomal localization of the beta-subunit of human electron transfer flavoprotein (ETF). (Abstract)&lt;/strong&gt; Am. J. Hum. Genet. 45: A185, 1989."None>Finocchiaro et al. (1989)</a> cloned the gene for the beta subunit of human electron transfer flavoprotein.</p>
</span>
<div>
<br />
</div>
</div>
<div>
<a id="geneStructure" class="mim-anchor"></a>
<h4 href="#mimGeneStructureFold" id="mimGeneStructureToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimGeneStructureToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Gene Structure</strong>
</span>
</h4>
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<p><a href="#6" class="mim-tip-reference" title="Olsen, R. K. J., Andresen, B. S., Christensen, E., Bross, P., Skovby, F., Gregersen, N. &lt;strong&gt;Clear relationship between ETF/ETFDH genotype and phenotype in patients with multiple acyl-CoA dehydrogenation deficiency.&lt;/strong&gt; Hum. Mutat. 22: 12-23, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12815589/&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;12815589&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.10226&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="12815589">Olsen et al. (2003)</a> determined that the ETFB gene contains 6 exons. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12815589" 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">
<span id="mimMappingToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
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<div id="mimMappingFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p><a href="#3" class="mim-tip-reference" title="Finocchiaro, G., Archidiacono, N., Gellera, C., Bloisi, W., Colombo, I., Valdameri, G., Romeo, G., Tanaka, K., Di Donato, S. &lt;strong&gt;Molecular cloning and chromosomal localization of the beta-subunit of human electron transfer flavoprotein (ETF). (Abstract)&lt;/strong&gt; Am. J. Hum. Genet. 45: A185, 1989."None>Finocchiaro et al. (1989)</a> mapped the ETFB gene to chromosome 19 by Southern analysis of somatic cell hybrid DNAs. <a href="#1" class="mim-tip-reference" title="Antonacci, R., Colombo, I., Archidiacono, N., Volta, M., DiDonato, S., Finocchiaro, G., Rocchi, M. &lt;strong&gt;Assignment of the gene encoding the beta-subunit of the electron-transfer flavoprotein (ETFB) to human chromosome 19q13.3.&lt;/strong&gt; Genomics 19: 177-179, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8188225/&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;8188225&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1006/geno.1994.1035&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="8188225">Antonacci et al. (1994)</a> assigned the ETFB gene to 19q13.3 by Southern analysis of somatic cell hybrids and fluorescence in situ hybridization. <a href="#9" class="mim-tip-reference" title="White, R. A., Dowler, L. L., Angeloni, S. V., Koeller, D. M. &lt;strong&gt;Assignment of Etfdh, Etfb, and Etfa to chromosomes 3, 7, and 13: the mouse homologs of genes responsible for glutaric acidemia type II in human.&lt;/strong&gt; Genomics 33: 131-134, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8617498/&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;8617498&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1006/geno.1996.0170&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="8617498">White et al. (1996)</a> mapped the corresponding gene to mouse chromosome 7. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=8188225+8617498" 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>
<span class="mim-font">
<strong>Gene Function</strong>
</span>
</h4>
</div>
<div id="mimGeneFunctionFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p><a href="#7" class="mim-tip-reference" title="Rhein, V. F., Carroll, J., He, J., Ding, S., Fearnley, I. M., Walker, J. E. &lt;strong&gt;Human METTL20 methylates lysine residues adjacent to the recognition loop of the electron transfer flavoprotein in mitochondria.&lt;/strong&gt; J. Biol. Chem. 289: 24640-24651, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25023281/&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;25023281&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.M114.580464&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="25023281">Rhein et al. (2014)</a> determined that lys199 and lys202 of mature ETF-beta (i.e., ETF-beta lacking the N-terminal methionine) were trimethylated in bovine and human mitochondria. Affinity purification experiments showed interaction between ETF-beta and the lysine methyltransferase METTL20 (<a href="/entry/615256">615256</a>). Overexpression of METTL20 in HEK293T cells led to increased trimethylation of lys199 and lys202 of ETF-beta, whereas suppression of METTL20 via small interfering RNA (siRNA) in human 143B cells resulted in significant reduction in ETF-beta methylation. Suppression of trimethylation of Etf-beta via siRNA against Mettl20 in mouse C2C12 myoblasts oxidizing palmitate as an energy source reduced the consumption of oxygen by the cells. <a href="#7" class="mim-tip-reference" title="Rhein, V. F., Carroll, J., He, J., Ding, S., Fearnley, I. M., Walker, J. E. &lt;strong&gt;Human METTL20 methylates lysine residues adjacent to the recognition loop of the electron transfer flavoprotein in mitochondria.&lt;/strong&gt; J. Biol. Chem. 289: 24640-24651, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25023281/&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;25023281&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.M114.580464&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="25023281">Rhein et al. (2014)</a> concluded that oxidation of fatty acids in mitochondria and passage of electrons via ETF may be controlled by modulating interactions between reduced dehydrogenases and ETF-beta by trimethylation of lysine residues by METTL20. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25023281" 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>Independently, <a href="#5" class="mim-tip-reference" title="Malecki, J., Ho, A. Y. Y., Moen, A., Dahl, H.-A., Falnes, P. O. &lt;strong&gt;Human METTL20 is a mitochondrial lysine methyltransferase that targets the beta subunit of electron transfer flavoprotein (ETF-beta) and modulates its activity.&lt;/strong&gt; J. Biol. Chem. 290: 423-434, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25416781/&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;25416781&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.M114.614115&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="25416781">Malecki et al. (2015)</a> found that recombinant human METTL20 methylated ETF-beta in human cells. METTL20 specifically methylated lys200 and lys203 of full-length ETF-beta, both in vitro and in human cells. METTL20-mediated methylation of ETF-beta in vitro reduced the ability of ETF-beta to receive electrons from medium-chain acyl-CoA dehydrogenase (ACADM; <a href="/entry/607008">607008</a>) and glutaryl-CoA dehydrogenase (GCDH; <a href="/entry/608801">608801</a>). <a href="#5" class="mim-tip-reference" title="Malecki, J., Ho, A. Y. Y., Moen, A., Dahl, H.-A., Falnes, P. O. &lt;strong&gt;Human METTL20 is a mitochondrial lysine methyltransferase that targets the beta subunit of electron transfer flavoprotein (ETF-beta) and modulates its activity.&lt;/strong&gt; J. Biol. Chem. 290: 423-434, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25416781/&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;25416781&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.M114.614115&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="25416781">Malecki et al. (2015)</a> proposed that METTL20 may regulate cellular metabolism by modulating interaction of ETF-beta and dehydrogenases. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25416781" 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="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>
<span class="mim-font">
<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><a href="#8" class="mim-tip-reference" title="Royal, V., Alberts, M. J., Pericak-Vance, M. A., Finocchiaro, G., Bebout, J., Yamaoka, L., Hung, W.-Y., Gaskell, P. C., Roses, A. D. &lt;strong&gt;RsaI RFLP for electron transport flavoprotein-beta (ETFB).&lt;/strong&gt; Nucleic Acids Res. 19: 4021 only, 1991.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/1677763/&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;1677763&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/nar/19.14.4021&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="1677763">Royal et al. (1991)</a> demonstrated a 2-allele RFLP of the ETFB gene; the frequencies of the alternative alleles were 0.51 and 0.49. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1677763" 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="#2" class="mim-tip-reference" title="Colombo, I., Finocchiaro, G., Garavaglia, B., Garbuglio, N., Yamaguchi, S., Frerman, F. E., Berra, B., DiDonato, S. &lt;strong&gt;Mutations and polymorphisms of the gene encoding the beta-subunit of the electron transfer flavoprotein in three patients with glutaric acidemia type II.&lt;/strong&gt; Hum. Molec. Genet. 3: 429-435, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7912128/&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;7912128&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/3.3.429&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="7912128">Colombo et al. (1994)</a> identified mutations in the ETFB gene in patients with glutaric acidemia IIB (e.g., <a href="#0001">130410.0001</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7912128" 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 9 patients with glutaric acidemia II, <a href="#6" class="mim-tip-reference" title="Olsen, R. K. J., Andresen, B. S., Christensen, E., Bross, P., Skovby, F., Gregersen, N. &lt;strong&gt;Clear relationship between ETF/ETFDH genotype and phenotype in patients with multiple acyl-CoA dehydrogenation deficiency.&lt;/strong&gt; Hum. Mutat. 22: 12-23, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12815589/&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;12815589&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.10226&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="12815589">Olsen et al. (2003)</a> identified a defect in the ETFB gene in each of 3 patients representing the 3 different clinical forms of the disorder: the neonatal-onset form with congenital anomalies (type I), the neonatal-onset form without congenital anomalies (type II), and the late-onset form (type III). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12815589" 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="allelicVariants" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<span href="#mimAllelicVariantsFold" id="mimAllelicVariantsToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimAllelicVariantsToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>ALLELIC VARIANTS (<a href="/help/faq#1_4"></strong>
</span>
<strong>3 Selected Examples</a>):</strong>
</span>
</h4>
<div>
<p />
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<div id="mimAllelicVariantsFold" class="collapse in mimTextToggleFold">
<div>
<a href="/allelicVariants/130410" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=130410[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>
<h4>
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<strong>.0001&nbsp;GLUTARIC ACIDEMIA IIB</strong>
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ETFB, ARG164GLN
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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> rs104894677 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs104894677;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/rs104894677?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=rs104894677" 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=rs104894677" 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=RCV000018200 OR RCV001235936" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000018200, RCV001235936" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000018200...</a>
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<span class="mim-text-font">
<p>In 2 Japanese brothers with glutaric acidemia IIB (<a href="/entry/231680">231680</a>), <a href="#2" class="mim-tip-reference" title="Colombo, I., Finocchiaro, G., Garavaglia, B., Garbuglio, N., Yamaguchi, S., Frerman, F. E., Berra, B., DiDonato, S. &lt;strong&gt;Mutations and polymorphisms of the gene encoding the beta-subunit of the electron transfer flavoprotein in three patients with glutaric acidemia type II.&lt;/strong&gt; Hum. Molec. Genet. 3: 429-435, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7912128/&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;7912128&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/3.3.429&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="7912128">Colombo et al. (1994)</a> demonstrated compound heterozygosity for mutations at the ETFB gene. One allele carried a G-to-A transition at nucleotide 518, causing a change of codon 164 from arginine to glutamine. The other allele carried a G-to-C transversion at the first nucleotide of the intron donor site (<a href="#0002">130410.0002</a>), downstream of an exon that is skipped during the splicing event, and a deletion of 159 bp, spanning nucleotides 466 through 624 and leading to the removal of 53 amino acids and no interruption of the open reading frame. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7912128" 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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<a id="0002" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0002&nbsp;GLUTARIC ACIDEMIA IIB</strong>
</span>
</h4>
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<span class="mim-text-font">
<div style="float: left;">
ETFB, 1-EX DEL, IVSDS, +1, G-C
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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">rs2123572141 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs2123572141;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs2123572141" 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=rs2123572141" 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=RCV000018201" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000018201" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000018201</a>
</span>
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<div>
<span class="mim-text-font">
<p>For discussion of the splice site mutation in the ETFB gene that was found in compound heterozygous state in 2 Japanese brothers with glutaric acidemia IIB (<a href="/entry/231680">231680</a>) by <a href="#2" class="mim-tip-reference" title="Colombo, I., Finocchiaro, G., Garavaglia, B., Garbuglio, N., Yamaguchi, S., Frerman, F. E., Berra, B., DiDonato, S. &lt;strong&gt;Mutations and polymorphisms of the gene encoding the beta-subunit of the electron transfer flavoprotein in three patients with glutaric acidemia type II.&lt;/strong&gt; Hum. Molec. Genet. 3: 429-435, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7912128/&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;7912128&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/3.3.429&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="7912128">Colombo et al. (1994)</a>, see <a href="#0001">130410.0001</a>. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7912128" 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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<a id="0003" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0003&nbsp;GLUTARIC ACIDEMIA IIB</strong>
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<div>
<span class="mim-text-font">
<div style="float: left;">
ETFB, ASP128ASN
</div>
</span>
&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> rs104894678 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs104894678;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/rs104894678?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=rs104894678" 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=rs104894678" 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=RCV000018202 OR RCV002513095 OR RCV004525856" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000018202, RCV002513095, RCV004525856" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000018202...</a>
</span>
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<div>
<span class="mim-text-font">
<p>In a patient with the late-onset form (type III) of multiple acyl-CoA dehydrogenase deficiency (MADD; <a href="/entry/231680">231680</a>), <a href="#6" class="mim-tip-reference" title="Olsen, R. K. J., Andresen, B. S., Christensen, E., Bross, P., Skovby, F., Gregersen, N. &lt;strong&gt;Clear relationship between ETF/ETFDH genotype and phenotype in patients with multiple acyl-CoA dehydrogenation deficiency.&lt;/strong&gt; Hum. Mutat. 22: 12-23, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12815589/&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;12815589&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.10226&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="12815589">Olsen et al. (2003)</a> found homozygosity for an asp128-to-asn (D128N) mutation in exon 4 of the ETFB gene. The patient was born of consanguineous Kurdish parents and had been reported by <a href="#4" class="mim-tip-reference" title="Lundemose, J. B., Kolvraa, S., Gregersen, N., Christensen, E., Gregersen, M. &lt;strong&gt;Fatty acid oxidation disorders as primary cause of sudden and unexpected death in infants and young children: an investigation performed on cultured fibroblasts from 79 children who died aged between 0-4 years.&lt;/strong&gt; Molec. Path. 50: 212-217, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9350306/&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;9350306&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/mp.50.4.212&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="9350306">Lundemose et al. (1997)</a>. Both parents were heterozygous for the mutation. The child died in its first episode during varicella infection at 21 months of age. A previous child had died unexpectedly at the age of 6 months. Slight stasis and edema of the lungs and notable fatty infiltration in the liver were found at autopsy. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=9350306+12815589" 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="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="Antonacci1994" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Antonacci, R., Colombo, I., Archidiacono, N., Volta, M., DiDonato, S., Finocchiaro, G., Rocchi, M.
<strong>Assignment of the gene encoding the beta-subunit of the electron-transfer flavoprotein (ETFB) to human chromosome 19q13.3.</strong>
Genomics 19: 177-179, 1994.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8188225/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8188225</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8188225" 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.1994.1035" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="2" class="mim-anchor"></a>
<a id="Colombo1994" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Colombo, I., Finocchiaro, G., Garavaglia, B., Garbuglio, N., Yamaguchi, S., Frerman, F. E., Berra, B., DiDonato, S.
<strong>Mutations and polymorphisms of the gene encoding the beta-subunit of the electron transfer flavoprotein in three patients with glutaric acidemia type II.</strong>
Hum. Molec. Genet. 3: 429-435, 1994.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/7912128/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">7912128</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7912128" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/hmg/3.3.429" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="3" class="mim-anchor"></a>
<a id="Finocchiaro1989" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Finocchiaro, G., Archidiacono, N., Gellera, C., Bloisi, W., Colombo, I., Valdameri, G., Romeo, G., Tanaka, K., Di Donato, S.
<strong>Molecular cloning and chromosomal localization of the beta-subunit of human electron transfer flavoprotein (ETF). (Abstract)</strong>
Am. J. Hum. Genet. 45: A185, 1989.
</p>
</div>
</li>
<li>
<a id="4" class="mim-anchor"></a>
<a id="Lundemose1997" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Lundemose, J. B., Kolvraa, S., Gregersen, N., Christensen, E., Gregersen, M.
<strong>Fatty acid oxidation disorders as primary cause of sudden and unexpected death in infants and young children: an investigation performed on cultured fibroblasts from 79 children who died aged between 0-4 years.</strong>
Molec. Path. 50: 212-217, 1997.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9350306/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9350306</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9350306" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1136/mp.50.4.212" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="5" class="mim-anchor"></a>
<a id="Malecki2015" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Malecki, J., Ho, A. Y. Y., Moen, A., Dahl, H.-A., Falnes, P. O.
<strong>Human METTL20 is a mitochondrial lysine methyltransferase that targets the beta subunit of electron transfer flavoprotein (ETF-beta) and modulates its activity.</strong>
J. Biol. Chem. 290: 423-434, 2015.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/25416781/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">25416781</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25416781" 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.M114.614115" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="6" class="mim-anchor"></a>
<a id="Olsen2003" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Olsen, R. K. J., Andresen, B. S., Christensen, E., Bross, P., Skovby, F., Gregersen, N.
<strong>Clear relationship between ETF/ETFDH genotype and phenotype in patients with multiple acyl-CoA dehydrogenation deficiency.</strong>
Hum. Mutat. 22: 12-23, 2003.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12815589/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12815589</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12815589" 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/humu.10226" target="_blank">Full Text</a>]
</p>
</div>
</li>
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<a id="7" class="mim-anchor"></a>
<a id="Rhein2014" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Rhein, V. F., Carroll, J., He, J., Ding, S., Fearnley, I. M., Walker, J. E.
<strong>Human METTL20 methylates lysine residues adjacent to the recognition loop of the electron transfer flavoprotein in mitochondria.</strong>
J. Biol. Chem. 289: 24640-24651, 2014.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/25023281/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">25023281</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25023281" 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.M114.580464" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="8" class="mim-anchor"></a>
<a id="Royal1991" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Royal, V., Alberts, M. J., Pericak-Vance, M. A., Finocchiaro, G., Bebout, J., Yamaoka, L., Hung, W.-Y., Gaskell, P. C., Roses, A. D.
<strong>RsaI RFLP for electron transport flavoprotein-beta (ETFB).</strong>
Nucleic Acids Res. 19: 4021 only, 1991.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/1677763/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">1677763</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1677763" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/nar/19.14.4021" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="9" class="mim-anchor"></a>
<a id="White1996" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
White, R. A., Dowler, L. L., Angeloni, S. V., Koeller, D. M.
<strong>Assignment of Etfdh, Etfb, and Etfa to chromosomes 3, 7, and 13: the mouse homologs of genes responsible for glutaric acidemia type II in human.</strong>
Genomics 33: 131-134, 1996.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8617498/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8617498</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8617498" 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.1996.0170" target="_blank">Full Text</a>]
</p>
</div>
</li>
</ol>
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<div>
<a id="contributors" class="mim-anchor"></a>
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<span class="mim-text-font">
<a href="#mimCollapseContributors" role="button" data-toggle="collapse"> Contributors: </a>
</span>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Matthew B. Gross - updated : 03/26/2018
</span>
</div>
</div>
<div class="row collapse" id="mimCollapseContributors">
<div class="col-lg-offset-2 col-md-offset-4 col-sm-offset-4 col-xs-offset-2 col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Victor A. McKusick - updated : 8/18/2003
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<a id="creationDate" class="mim-anchor"></a>
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<div class="col-lg-2 col-md-2 col-sm-4 col-xs-4">
<span class="text-nowrap mim-text-font">
Creation Date:
</span>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Victor A. McKusick : 9/9/1990
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<div>
<a id="editHistory" class="mim-anchor"></a>
<div class="row">
<div class="col-lg-2 col-md-2 col-sm-4 col-xs-4">
<span class="text-nowrap mim-text-font">
<a href="#mimCollapseEditHistory" role="button" data-toggle="collapse"> Edit History: </a>
</span>
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<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
carol : 03/28/2018
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<div class="row collapse" id="mimCollapseEditHistory">
<div class="col-lg-offset-2 col-md-offset-2 col-sm-offset-4 col-xs-offset-4 col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
mgross : 03/26/2018<br>mcolton : 06/09/2015<br>carol : 7/27/2011<br>carol : 4/6/2005<br>terry : 3/16/2005<br>mgross : 8/19/2003<br>terry : 8/18/2003<br>carol : 12/13/1998<br>alopez : 6/17/1998<br>joanna : 6/11/1997<br>mark : 4/17/1996<br>terry : 4/10/1996<br>carol : 4/13/1994<br>warfield : 4/8/1994<br>carol : 10/11/1993<br>carol : 5/21/1993<br>supermim : 3/16/1992<br>carol : 11/26/1991
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<h3>
<span class="mim-font">
<strong>*</strong> 130410
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<h3>
<span class="mim-font">
ELECTRON TRANSFER FLAVOPROTEIN, BETA POLYPEPTIDE; ETFB
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<p>
<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: ETFB</em></strong>
</span>
</p>
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<p>
<span class="mim-text-font">
<strong>
<em>
Cytogenetic location: 19q13.41
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : 19:51,345,155-51,366,388 </span>
</em>
</strong>
<span class="small">(from NCBI)</span>
</span>
</p>
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<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">
19q13.41
</span>
</td>
<td>
<span class="mim-font">
Glutaric acidemia IIB
</span>
</td>
<td>
<span class="mim-font">
231680
</span>
</td>
<td>
<span class="mim-font">
Autosomal recessive
</span>
</td>
<td>
<span class="mim-font">
3
</span>
</td>
</tr>
</tbody>
</table>
</div>
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<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>Electron transfer flavoprotein (ETF) exists in the mitochondrial matrix as a heterodimer of 30-kD alpha subunits (ETFA; 608053) and 28-kD beta subunits (ETFB) and contains 1 flavin adenine dinucleotide (FAD) and 1 adenosine 5-prime monophosphate (AMP) per heterodimer. ETFDH (231675), a 64-kD monomer integrated in the inner mitochondrial membrane, contains 1 molecule of FAD and a 4Fe-4S cluster. Both enzymes are required for electron transfer from at least 9 mitochondrial flavin-containing dehydrogenases to the main respiratory chain. Multiple acyl-CoA dehydrogenation deficiency (MADD; 231680), also known as glutaric acidemia II or glutaric aciduria II, can be caused by mutation in any of the 3 ETF genes. The disorders resulting from defects in the ETFA, ETFB, and ETFDH genes are referred to as glutaric acidemia IIA, IIB, and IIC, respectively, although there appears to be no difference in the clinical phenotypes.</p>
</span>
<div>
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</div>
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<h4>
<span class="mim-font">
<strong>Cloning and Expression</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Finocchiaro et al. (1989) cloned the gene for the beta subunit of human electron transfer flavoprotein.</p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Gene Structure</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Olsen et al. (2003) determined that the ETFB gene contains 6 exons. </p>
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</div>
<div>
<h4>
<span class="mim-font">
<strong>Mapping</strong>
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</h4>
</div>
<span class="mim-text-font">
<p>Finocchiaro et al. (1989) mapped the ETFB gene to chromosome 19 by Southern analysis of somatic cell hybrid DNAs. Antonacci et al. (1994) assigned the ETFB gene to 19q13.3 by Southern analysis of somatic cell hybrids and fluorescence in situ hybridization. White et al. (1996) mapped the corresponding gene to mouse chromosome 7. </p>
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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>Rhein et al. (2014) determined that lys199 and lys202 of mature ETF-beta (i.e., ETF-beta lacking the N-terminal methionine) were trimethylated in bovine and human mitochondria. Affinity purification experiments showed interaction between ETF-beta and the lysine methyltransferase METTL20 (615256). Overexpression of METTL20 in HEK293T cells led to increased trimethylation of lys199 and lys202 of ETF-beta, whereas suppression of METTL20 via small interfering RNA (siRNA) in human 143B cells resulted in significant reduction in ETF-beta methylation. Suppression of trimethylation of Etf-beta via siRNA against Mettl20 in mouse C2C12 myoblasts oxidizing palmitate as an energy source reduced the consumption of oxygen by the cells. Rhein et al. (2014) concluded that oxidation of fatty acids in mitochondria and passage of electrons via ETF may be controlled by modulating interactions between reduced dehydrogenases and ETF-beta by trimethylation of lysine residues by METTL20. </p><p>Independently, Malecki et al. (2015) found that recombinant human METTL20 methylated ETF-beta in human cells. METTL20 specifically methylated lys200 and lys203 of full-length ETF-beta, both in vitro and in human cells. METTL20-mediated methylation of ETF-beta in vitro reduced the ability of ETF-beta to receive electrons from medium-chain acyl-CoA dehydrogenase (ACADM; 607008) and glutaryl-CoA dehydrogenase (GCDH; 608801). Malecki et al. (2015) proposed that METTL20 may regulate cellular metabolism by modulating interaction of ETF-beta and dehydrogenases. </p>
</span>
<div>
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</div>
<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
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</h4>
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<span class="mim-text-font">
<p>Royal et al. (1991) demonstrated a 2-allele RFLP of the ETFB gene; the frequencies of the alternative alleles were 0.51 and 0.49. </p><p>Colombo et al. (1994) identified mutations in the ETFB gene in patients with glutaric acidemia IIB (e.g., 130410.0001). </p><p>In a series of 9 patients with glutaric acidemia II, Olsen et al. (2003) identified a defect in the ETFB gene in each of 3 patients representing the 3 different clinical forms of the disorder: the neonatal-onset form with congenital anomalies (type I), the neonatal-onset form without congenital anomalies (type II), and the late-onset form (type III). </p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>3 Selected Examples):</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; GLUTARIC ACIDEMIA IIB</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
ETFB, ARG164GLN
<br />
SNP: rs104894677,
gnomAD: rs104894677,
ClinVar: RCV000018200, RCV001235936
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 Japanese brothers with glutaric acidemia IIB (231680), Colombo et al. (1994) demonstrated compound heterozygosity for mutations at the ETFB gene. One allele carried a G-to-A transition at nucleotide 518, causing a change of codon 164 from arginine to glutamine. The other allele carried a G-to-C transversion at the first nucleotide of the intron donor site (130410.0002), downstream of an exon that is skipped during the splicing event, and a deletion of 159 bp, spanning nucleotides 466 through 624 and leading to the removal of 53 amino acids and no interruption of the open reading frame. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0002 &nbsp; GLUTARIC ACIDEMIA IIB</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
ETFB, 1-EX DEL, IVSDS, +1, G-C
<br />
SNP: rs2123572141,
ClinVar: RCV000018201
</span>
</div>
<div>
<span class="mim-text-font">
<p>For discussion of the splice site mutation in the ETFB gene that was found in compound heterozygous state in 2 Japanese brothers with glutaric acidemia IIB (231680) by Colombo et al. (1994), see 130410.0001. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0003 &nbsp; GLUTARIC ACIDEMIA IIB</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
ETFB, ASP128ASN
<br />
SNP: rs104894678,
gnomAD: rs104894678,
ClinVar: RCV000018202, RCV002513095, RCV004525856
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a patient with the late-onset form (type III) of multiple acyl-CoA dehydrogenase deficiency (MADD; 231680), Olsen et al. (2003) found homozygosity for an asp128-to-asn (D128N) mutation in exon 4 of the ETFB gene. The patient was born of consanguineous Kurdish parents and had been reported by Lundemose et al. (1997). Both parents were heterozygous for the mutation. The child died in its first episode during varicella infection at 21 months of age. A previous child had died unexpectedly at the age of 6 months. Slight stasis and edema of the lungs and notable fatty infiltration in the liver were found at autopsy. </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">
Antonacci, R., Colombo, I., Archidiacono, N., Volta, M., DiDonato, S., Finocchiaro, G., Rocchi, M.
<strong>Assignment of the gene encoding the beta-subunit of the electron-transfer flavoprotein (ETFB) to human chromosome 19q13.3.</strong>
Genomics 19: 177-179, 1994.
[PubMed: 8188225]
[Full Text: https://doi.org/10.1006/geno.1994.1035]
</p>
</li>
<li>
<p class="mim-text-font">
Colombo, I., Finocchiaro, G., Garavaglia, B., Garbuglio, N., Yamaguchi, S., Frerman, F. E., Berra, B., DiDonato, S.
<strong>Mutations and polymorphisms of the gene encoding the beta-subunit of the electron transfer flavoprotein in three patients with glutaric acidemia type II.</strong>
Hum. Molec. Genet. 3: 429-435, 1994.
[PubMed: 7912128]
[Full Text: https://doi.org/10.1093/hmg/3.3.429]
</p>
</li>
<li>
<p class="mim-text-font">
Finocchiaro, G., Archidiacono, N., Gellera, C., Bloisi, W., Colombo, I., Valdameri, G., Romeo, G., Tanaka, K., Di Donato, S.
<strong>Molecular cloning and chromosomal localization of the beta-subunit of human electron transfer flavoprotein (ETF). (Abstract)</strong>
Am. J. Hum. Genet. 45: A185, 1989.
</p>
</li>
<li>
<p class="mim-text-font">
Lundemose, J. B., Kolvraa, S., Gregersen, N., Christensen, E., Gregersen, M.
<strong>Fatty acid oxidation disorders as primary cause of sudden and unexpected death in infants and young children: an investigation performed on cultured fibroblasts from 79 children who died aged between 0-4 years.</strong>
Molec. Path. 50: 212-217, 1997.
[PubMed: 9350306]
[Full Text: https://doi.org/10.1136/mp.50.4.212]
</p>
</li>
<li>
<p class="mim-text-font">
Malecki, J., Ho, A. Y. Y., Moen, A., Dahl, H.-A., Falnes, P. O.
<strong>Human METTL20 is a mitochondrial lysine methyltransferase that targets the beta subunit of electron transfer flavoprotein (ETF-beta) and modulates its activity.</strong>
J. Biol. Chem. 290: 423-434, 2015.
[PubMed: 25416781]
[Full Text: https://doi.org/10.1074/jbc.M114.614115]
</p>
</li>
<li>
<p class="mim-text-font">
Olsen, R. K. J., Andresen, B. S., Christensen, E., Bross, P., Skovby, F., Gregersen, N.
<strong>Clear relationship between ETF/ETFDH genotype and phenotype in patients with multiple acyl-CoA dehydrogenation deficiency.</strong>
Hum. Mutat. 22: 12-23, 2003.
[PubMed: 12815589]
[Full Text: https://doi.org/10.1002/humu.10226]
</p>
</li>
<li>
<p class="mim-text-font">
Rhein, V. F., Carroll, J., He, J., Ding, S., Fearnley, I. M., Walker, J. E.
<strong>Human METTL20 methylates lysine residues adjacent to the recognition loop of the electron transfer flavoprotein in mitochondria.</strong>
J. Biol. Chem. 289: 24640-24651, 2014.
[PubMed: 25023281]
[Full Text: https://doi.org/10.1074/jbc.M114.580464]
</p>
</li>
<li>
<p class="mim-text-font">
Royal, V., Alberts, M. J., Pericak-Vance, M. A., Finocchiaro, G., Bebout, J., Yamaoka, L., Hung, W.-Y., Gaskell, P. C., Roses, A. D.
<strong>RsaI RFLP for electron transport flavoprotein-beta (ETFB).</strong>
Nucleic Acids Res. 19: 4021 only, 1991.
[PubMed: 1677763]
[Full Text: https://doi.org/10.1093/nar/19.14.4021]
</p>
</li>
<li>
<p class="mim-text-font">
White, R. A., Dowler, L. L., Angeloni, S. V., Koeller, D. M.
<strong>Assignment of Etfdh, Etfb, and Etfa to chromosomes 3, 7, and 13: the mouse homologs of genes responsible for glutaric acidemia type II in human.</strong>
Genomics 33: 131-134, 1996.
[PubMed: 8617498]
[Full Text: https://doi.org/10.1006/geno.1996.0170]
</p>
</li>
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Matthew B. Gross - updated : 03/26/2018<br>Victor A. McKusick - updated : 8/18/2003
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