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Entry
- *139150 - RAS p21 PROTEIN ACTIVATOR 1; RASA1
- OMIM
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<span class="h4">*139150</span>
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<strong>Table of Contents</strong>
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</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=00745&isoform_id=00745_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/RASA1" 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/121743,182972,182974,4506431,12545406,21542520,33392732,57999411,62087792,116283650,119616337,119616338,119616339,126362053,189053444,194390530,194390542,194390754" 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/P20936" class="mim-tip-hint" title="Comprehensive protein sequence and functional information, including supporting data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UniProt', 'domain': 'uniprot.org'})">UniProt</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimGeneInfo">
<span class="panel-title">
<span class="small">
<a href="#mimGeneInfoLinksFold" id="mimGeneInfoLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
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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=5921" 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=ENSG00000145715;t=ENST00000274376" 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=RASA1" 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=RASA1" 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+5921" 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/RASA1" 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:5921" 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/5921" 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=chr5&hgg_gene=ENST00000274376.11&hgg_start=87267883&hgg_end=87391916&hgg_type=knownGene" class="mim-tip-hint" title="UCSC Genome Bioinformatics; gene-specific structure and function information with links to other databases." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UCSC', 'domain': 'genome.ucsc.edu'})">UCSC</a></div>
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<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<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">
<div class="panel-body small mim-panel-body">
<div><a href="https://search.clinicalgenome.org/kb/gene-dosage/HGNC:9871" 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:9871" 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/rasa1" 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=139150[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">
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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=139150[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://www.deciphergenomics.org/gene/RASA1/overview/clinical-info" class="mim-tip-hint" title="DECIPHER" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'DECIPHER', 'domain': 'DECIPHER'})">DECIPHER</a></div>
<div><a href="https://gnomad.broadinstitute.org/gene/ENSG00000145715" 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=RASA1" 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=RASA1" 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=RASA1" 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="http://www.arup.utah.edu/database/RASA1/RASA1_welcome.php" class="mim-tip-hint" title="A gene-specific database of variation." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Locus Specific DB', 'domain': 'locus-specific-db.org'})">Locus Specific DBs</a></div>
<div><a href="https://evs.gs.washington.edu/EVS/PopStatsServlet?searchBy=Gene+Hugo&target=RASA1&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/PA34232" 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:9871" 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/FBgn0003969.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:97860" 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/RASA1#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:97860" 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/5921/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=5921" 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=WBGene00021238;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-030131-4694" 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:5921" 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=RASA1&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>
139150
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
RAS p21 PROTEIN ACTIVATOR 1; RASA1
</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">
GUANOSINE TRIPHOSPHATASE-ACTIVATING PROTEIN<br />
GTPase-ACTIVATING PROTEIN; GAP<br />
p120 RASGAP
</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=RASA1" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">RASA1</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/5/314?start=-3&limit=10&highlight=314">5q14.3</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chr5:87267883-87391916&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'})">5:87,267,883-87,391,916</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
<span class="hidden-sm hidden-xs pull-right">
<a href="/clinicalSynopsis/table?mimNumber=605462,608354" class="label label-warning" onclick="gtag('event', 'mim_link', {'source': 'Entry', 'destination': 'clinicalSynopsisTable'})">
View Clinical Synopses
</a>
</span>
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="2">
<span class="mim-font">
<a href="/geneMap/5/314?start=-3&limit=10&highlight=314">
5q14.3
</a>
</span>
</td>
<td>
<span class="mim-font">
Basal cell carcinoma, somatic
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605462"> 605462 </a>
</span>
</td>
<td>
<span class="mim-font">
</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>
<tr>
<td>
<span class="mim-font">
Capillary malformation-arteriovenous malformation 1
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608354"> 608354 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</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">
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PheneGene Graphics <span class="caret"></span>
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<li><a href="/graph/linear/139150" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/139150" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
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</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>
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</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>The RAS gene family encodes membrane-associated, guanine nucleotide-binding proteins (p21) that are involved in the control of cellular proliferation and differentiation. Similar to other guanine-binding proteins (such as the heterotrimeric G proteins), the RAS proteins cycle between an active guanosine-triphosphate (GTP) bound form and an inactive, guanosine-diphosphate (GDP) bound form. The weak intrinsic GTPase activity of RAS proteins is greatly enhanced by the action of GTPase-activating proteins (GAPs), such as RASA1, which are effectors of RAS oncogene action (<a href="#13" class="mim-tip-reference" title="Trahey, M., Wong, G., Halenbeck, R., Rubinfeld, B., Martin, G. A., Ladner, M., Long, C. M., Crosier, W. J., Watt, K., Koths, K., McCormick, F. &lt;strong&gt;Molecular cloning of two types of GAP complementary DNA from human placenta.&lt;/strong&gt; Science 242: 1697-1700, 1988.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/3201259/&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;3201259&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.3201259&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="3201259">Trahey et al., 1988</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3201259" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>Cloning and Expression</strong>
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<p><a href="#13" class="mim-tip-reference" title="Trahey, M., Wong, G., Halenbeck, R., Rubinfeld, B., Martin, G. A., Ladner, M., Long, C. M., Crosier, W. J., Watt, K., Koths, K., McCormick, F. &lt;strong&gt;Molecular cloning of two types of GAP complementary DNA from human placenta.&lt;/strong&gt; Science 242: 1697-1700, 1988.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/3201259/&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;3201259&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.3201259&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="3201259">Trahey et al. (1988)</a> purified RASA1 protein, which they called GAP, from placenta and obtained internal amino acid sequence of the protein from which they cloned 2 RASA1 transcripts. One transcript predicted a protein with molecular weight similar to purified GAP and corresponded to the human equivalent of bovine GAP cDNA. The other transcript predicted a smaller protein with a different N-terminal sequence, presumably the result of differential splicing. Both transcripts produced protein with GAP activity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3201259" 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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<p>By the combination of somatic cell hybrid analysis and in situ hybridization, <a href="#7" class="mim-tip-reference" title="Hsieh, C. L., Vogel, U. S., Dixon, R. A., Francke, U. &lt;strong&gt;Chromosome localization and cDNA sequence of murine and human genes for ras p21 GTPase activating protein (GAP).&lt;/strong&gt; Somat. Cell Molec. Genet. 15: 579-590, 1989.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/2574500/&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;2574500&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/BF01534919&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="2574500">Hsieh et al. (1989)</a> assigned the RASA1 gene to chromosome 5q13.3. <a href="#9" class="mim-tip-reference" title="Lemons, R. S., Espinosa, R., III, Rebentisch, M., McCormick, F., Ladner, M., Le Beau, M. M. &lt;strong&gt;Chromosomal localization of the gene encoding GTPase-activating protein (RASA) to human chromosome 5, bands q13-q15.&lt;/strong&gt; Genomics 6: 383-385, 1990.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/2307479/&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;2307479&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/0888-7543(90)90581-e&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="2307479">Lemons et al. (1990)</a> localized the RASA1 gene to chromosome 5q13-q15 by Southern analysis of somatic cell hybrids and by in situ hybridization. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=2574500+2307479" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#6" class="mim-tip-reference" title="Hsieh, C. L., Francke, U. &lt;strong&gt;The gene for GTPase activating protein (GAP) is on human chromosome 5q and mouse chromosome 13. (Abstract)&lt;/strong&gt; Cytogenet. Cell Genet. 51: 1016 only, 1989."None>Hsieh and Francke (1989)</a> mapped the mouse Rasa1 gene to the distal end of chromosome 13.</p>
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<p><strong><em>Capillary Malformation-Arteriovenous Malformation 1</em></strong></p><p>
Starting with a family study of capillary malformation, or 'port-wine stain' (<a href="/entry/163000">163000</a>), Eerola et al. (<a href="#2" class="mim-tip-reference" title="Eerola, I., Boon, L. M., Watanabe, S., Grynberg, H., Mulliken, J. B., Vikkula, M. &lt;strong&gt;Locus for susceptibility for familial capillary malformation (&#x27;port-wine stain&#x27;) maps to 5q.&lt;/strong&gt; Europ. J. Hum. Genet. 10: 375-380, 2002.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12080389/&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;12080389&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/sj.ejhg.5200817&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="12080389">2002</a>, <a href="#1" class="mim-tip-reference" title="Eerola, I., Boon, L. M., Mulliken, J. B., Burrows, P. E., Dompmartin, A., Watanabe, S., Vanwijck, R., Vikkula, M. &lt;strong&gt;Capillary malformation-arteriovenous malformation, a new clinical and genetic disorder caused by RASA1 mutations.&lt;/strong&gt; Am. J. Hum. Genet. 73: 1240-1249, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14639529/&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;14639529&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=14639529[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/379793&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="14639529">2003</a>) identified a susceptibility locus on 5q, which was initially referred to as CMC1. <a href="#1" class="mim-tip-reference" title="Eerola, I., Boon, L. M., Mulliken, J. B., Burrows, P. E., Dompmartin, A., Watanabe, S., Vanwijck, R., Vikkula, M. &lt;strong&gt;Capillary malformation-arteriovenous malformation, a new clinical and genetic disorder caused by RASA1 mutations.&lt;/strong&gt; Am. J. Hum. Genet. 73: 1240-1249, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14639529/&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;14639529&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=14639529[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/379793&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="14639529">Eerola et al. (2003)</a> screened for mutations in RASA1, which was a positional candidate, in 17 families. Heterozygous inactivating RASA1 mutations were detected in 6 families manifesting atypical capillary malformations associated with arteriovenous malformation, arteriovenous fistula, or Parkes Weber syndrome. <a href="#1" class="mim-tip-reference" title="Eerola, I., Boon, L. M., Mulliken, J. B., Burrows, P. E., Dompmartin, A., Watanabe, S., Vanwijck, R., Vikkula, M. &lt;strong&gt;Capillary malformation-arteriovenous malformation, a new clinical and genetic disorder caused by RASA1 mutations.&lt;/strong&gt; Am. J. Hum. Genet. 73: 1240-1249, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14639529/&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;14639529&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=14639529[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/379793&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="14639529">Eerola et al. (2003)</a> named this new entity caused by RASA1 mutations 'capillary malformation-arteriovenous malformation' (CMAVM1; <a href="/entry/608354">608354</a>). The phenotypic variability was thought to be explained by the involvement of p120-RasGAP in signaling for various growth factor receptors that control proliferation, migration, and survival of several cell types, including vascular endothelial cells. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=12080389+14639529" 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>Another inherited vascular malformation, cerebral capillary malformation (CCM; <a href="/entry/116860">116860</a>), has also been related to misregulated Ras signaling. The mutated protein, KRIT1 (<a href="/entry/604214">604214</a>) was originally identified as a binding partner of Rap1a (<a href="/entry/179520">179520</a>), an antagonist of Ras transformation. KRIT1 has also been shown to bind ICAP1 (<a href="/entry/607153">607153</a>), a protein that links integrins and the actin cytoskeleton, which implies a process of integrin-signaling-mediated cellular adhesion in the pathogenesis of CCM. CMAVM and CCM may be due to similar cellular processes, since p120-RasGAP can bind Rap1a, which has an important role in integrin-mediated cellular adhesion. It is noteworthy that in certain families with CCM and mutations in KRIT1, some members also have cutaneous lesions characterized as hyperkeratotic capillary-venous malformations (<a href="#8" class="mim-tip-reference" title="Labauge, P., Enjolras, O., Bonerandi, J.-J., Laberge, S., Dandurand, M., Joujoux, J.-M., Tournier-Lasserve, E. &lt;strong&gt;An association between autosomal dominant cerebral cavernomas and a distinctive hyperkeratotic cutaneous vascular malformation in 4 families.&lt;/strong&gt; Ann. Neurol. 45: 250-254, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9989629/&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;9989629&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/1531-8249(199902)45:2&lt;250::aid-ana17&gt;3.0.co;2-v&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="9989629">Labauge et al., 1999</a>; <a href="#3" class="mim-tip-reference" title="Eerola, I., Plate, K. H., Spiegel, R., Boon, L. M., Mulliken, J. B., Vikkula, M. &lt;strong&gt;KRIT1 is mutated in hyperkeratotic cutaneous capillary-venous malformation associated with cerebral capillary malformation.&lt;/strong&gt; Hum. Molec. Genet. 9: 1351-1355, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10814716/&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;10814716&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/9.9.1351&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="10814716">Eerola et al., 2000</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=9989629+10814716" 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 affected members of 3 Ashkenazi Jewish families with capillary malformations, <a href="#5" class="mim-tip-reference" title="Hershkovitz, D., Bercovich, D., Sprecher, E., Lapidot, M. &lt;strong&gt;RASA1 mutations may cause hereditary capillary malformations without arteriovenous malformations.&lt;/strong&gt; Brit. J. Derm. 158: 1035-1040, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18363760/&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;18363760&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1365-2133.2008.08493.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="18363760">Hershkovitz et al. (2008)</a> identified heterozygous mutations in the RASA1 gene (<a href="#0006">139150.0006</a>-<a href="#0008">139150.0008</a>). An arteriovenous malformation was only identified in 1 of the families, suggesting that the phenotypic spectrum of RASA1-related CMAVM can include patients with only capillary malformations. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18363760" 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 combined retrospective and prospective study of 261 individuals with CMAVM and related phenotypes, <a href="#12" class="mim-tip-reference" title="Revencu, N., Boon, L. M., Mendola, A., Cordisco, M. R., Dubois, J., Clapuyt, P., Hammer, F., Amor, D. J., Irvine, A. D., Baselga, E., Dompmartin, A., Syed, S., and 40 others. &lt;strong&gt;RASA1 mutations and associated phenotypes in 68 families with capillary malformation-arteriovenous malformation.&lt;/strong&gt; Hum. Mutat. 34: 1632-1641, 2013.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24038909/&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;24038909&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.22431&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="24038909">Revencu et al. (2013)</a> screened for mutations in the RASA1 gene and identified 58 in 68 of the 100 individuals with CMAVM and in none in those with related disorders, including 100 with common CMs, 37 with Sturge-Weber syndrome, and 24 with AVMs. The 68 CMAVM patients with mutations included 32 males and 36 females of European, Hispanic, or Asian ancestry; 7 of the patients had Parkes-Weber syndrome. The 58 mutations, 43 of which were novel, were predominantly truncating mutations; 52 were private mutations. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24038909" 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="#12" class="mim-tip-reference" title="Revencu, N., Boon, L. M., Mendola, A., Cordisco, M. R., Dubois, J., Clapuyt, P., Hammer, F., Amor, D. J., Irvine, A. D., Baselga, E., Dompmartin, A., Syed, S., and 40 others. &lt;strong&gt;RASA1 mutations and associated phenotypes in 68 families with capillary malformation-arteriovenous malformation.&lt;/strong&gt; Hum. Mutat. 34: 1632-1641, 2013.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24038909/&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;24038909&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.22431&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="24038909">Revencu et al. (2013)</a> analyzed DNA from a neurofibroma that had developed in a congenital Parkes-Weber lesion in a CMAVM patient with a previously confirmed germline mutation in the RASA1 gene. The DHPLC elution profile was indicative of loss of function of the wildtype allele in the tissue. SNP array showed mosaic loss of chromosome 5q, including the RASA1 gene, and part of chromosome 22, including the NF2 gene (<a href="/entry/607379">607379</a>). Sequencing of the NF2 gene revealed a nonsense mutation in the tissue, but not in the blood. The authors suggested that the 2 hits in the NF2 gene explain the development of the neurofibroma, and they speculated that the somatic loss of 5q, including the RASA1 gene, is involved in the pathogenesis of the Parkes Weber lesion. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24038909" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><strong><em>Basal Cell Carcinoma, Somatic</em></strong></p><p>
Point mutations in RAS genes ('activating' or oncogenic mutants) decrease the intrinsic GTPase activity of RAS and are insensitive to stimulation by GAPs. This suggested to <a href="#4" class="mim-tip-reference" title="Friedman, E., Gejman, P. V., Martin, G. A., McCormick, F. &lt;strong&gt;Nonsense mutations in the C-terminal SH2 region of the GTPase activating protein (GAP) gene in human tumours.&lt;/strong&gt; Nature Genet. 5: 242-247, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8275088/&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;8275088&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1193-242&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="8275088">Friedman et al. (1993)</a> that at least some of the transforming activity of mutant RAS is conferred by the RAS protein being constitutively activated in its GTP-bound state. Mutations in RAS that render it insensitive to GAP regulation result in tumor formation. Mutations in GAP that ablate its ability to downregulate RAS might result in a similar phenotype. To test this hypothesis, <a href="#4" class="mim-tip-reference" title="Friedman, E., Gejman, P. V., Martin, G. A., McCormick, F. &lt;strong&gt;Nonsense mutations in the C-terminal SH2 region of the GTPase activating protein (GAP) gene in human tumours.&lt;/strong&gt; Nature Genet. 5: 242-247, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8275088/&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;8275088&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1193-242&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="8275088">Friedman et al. (1993)</a> analyzed 188 human tumor samples for mutations within the catalytic domain of the GAP gene and for mutations within its C-terminal SH2 region. Although no mutations could be demonstrated in the catalytic domain, 3 different nonsense mutations were observed in basal cell carcinomas. The region in which the mutations were clustered is A/T rich, raising the possibility that UV radiation is a contributing factor. The 3 mutations were found in the first 5 tumors examined. No abnormality was found in 16 other basal cell carcinomas. Thus, the apparent prevalence of GAP mutation was about 14% (3 of 21). The tumors analyzed included a great variety, including cancers of thyroid, lung, breast, colon, and pancreas. No GAP mutation was found in any of these. <a href="#11" class="mim-tip-reference" title="Mitsudomi, T., Friedman, E., Gejman, P. V., McCormick, F., Gazdar, A. F. &lt;strong&gt;Genetic analysis of the catalytic domain of the GAP gene in human lung cancer cell lines.&lt;/strong&gt; Hum. Genet. 93: 27-31, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8270251/&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;8270251&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/BF00218908&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="8270251">Mitsudomi et al. (1994)</a> could not demonstrate mutations in the catalytic domain of the GAP gene in human lung cancer cell lines. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=8270251+8275088" 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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<p><a href="#10" class="mim-tip-reference" title="Lubeck, B. A., Lapinski, P. E., Oliver, J. A., Ksionda, O., Parada, L. F., Zhu, Y., Maillard, I., Chiang, M., Roose, J., King, P. D. &lt;strong&gt;Cutting edge: codeletion of the Ras GTPase-activating proteins (RasGAPs) neurofibromin 1 and p120 RasGAP in T cells results in the development of T cell acute lymphoblastic leukemia.&lt;/strong&gt; J. Immun. 195: 31-35, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/26002977/&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;26002977&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.4049/jimmunol.1402639&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="26002977">Lubeck et al. (2015)</a> found that mice lacking both Nf1 (<a href="/entry/613113">613113</a>) and Rasa1 in T cells, but not those lacking either Nf1 or Rasa1 alone, developed T-cell acute lymphoblastic leukemia/lymphoma (see <a href="/entry/613065">613065</a>) that originated at an early point in T-cell development and was dependent on activating mutations in Notch1 (<a href="/entry/190198">190198</a>). <a href="#10" class="mim-tip-reference" title="Lubeck, B. A., Lapinski, P. E., Oliver, J. A., Ksionda, O., Parada, L. F., Zhu, Y., Maillard, I., Chiang, M., Roose, J., King, P. D. &lt;strong&gt;Cutting edge: codeletion of the Ras GTPase-activating proteins (RasGAPs) neurofibromin 1 and p120 RasGAP in T cells results in the development of T cell acute lymphoblastic leukemia.&lt;/strong&gt; J. Immun. 195: 31-35, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/26002977/&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;26002977&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.4049/jimmunol.1402639&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="26002977">Lubeck et al. (2015)</a> concluded that RASA1 and NF1 are co-tumor suppressors in the T-cell lineage. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=26002977" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>ALLELIC VARIANTS (<a href="/help/faq#1_4"></strong>
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<strong>8 Selected Examples</a>):</strong>
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<a href="/allelicVariants/139150" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=139150[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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<strong>.0001&nbsp;BASAL CELL CARCINOMA, SOMATIC</strong>
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RASA1, ARG398LEU
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs137853214 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs137853214;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=rs137853214" 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=rs137853214" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
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<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000017367" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000017367" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000017367</a>
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<p>Using denaturing gradient gel electrophoresis (DGGE) and direct sequence analysis, <a href="#4" class="mim-tip-reference" title="Friedman, E., Gejman, P. V., Martin, G. A., McCormick, F. &lt;strong&gt;Nonsense mutations in the C-terminal SH2 region of the GTPase activating protein (GAP) gene in human tumours.&lt;/strong&gt; Nature Genet. 5: 242-247, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8275088/&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;8275088&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1193-242&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="8275088">Friedman et al. (1993)</a> screened a basal cell carcinoma tumor and identified a missense mutation in the SH2 domain of GAP. A change in codon 398 from CGA to CTA resulted in substitution of leucine for arginine. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8275088" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0002&nbsp;BASAL CELL CARCINOMA, SOMATIC</strong>
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RASA1, LYS400GLY
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs137853215 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs137853215;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=rs137853215" 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=rs137853215" 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=RCV000017368" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000017368" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000017368</a>
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<p>Using DGGE and direct sequence analysis, <a href="#4" class="mim-tip-reference" title="Friedman, E., Gejman, P. V., Martin, G. A., McCormick, F. &lt;strong&gt;Nonsense mutations in the C-terminal SH2 region of the GTPase activating protein (GAP) gene in human tumours.&lt;/strong&gt; Nature Genet. 5: 242-247, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8275088/&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;8275088&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1193-242&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="8275088">Friedman et al. (1993)</a> screened a basal cell carcinoma tumor and identified a missense mutation in the SH2 domain of GAP. A change in codon 400 from AAA to GAA resulted in substitution of glycine for lysine. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8275088" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0003&nbsp;BASAL CELL CARCINOMA, SOMATIC</strong>
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RASA1, ILE401VAL
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs137853216 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs137853216;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=rs137853216" 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=rs137853216" 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=RCV000017369" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000017369" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000017369</a>
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<p>Using DGGE and direct sequence analysis, <a href="#4" class="mim-tip-reference" title="Friedman, E., Gejman, P. V., Martin, G. A., McCormick, F. &lt;strong&gt;Nonsense mutations in the C-terminal SH2 region of the GTPase activating protein (GAP) gene in human tumours.&lt;/strong&gt; Nature Genet. 5: 242-247, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8275088/&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;8275088&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1193-242&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="8275088">Friedman et al. (1993)</a> screened a basal cell carcinoma tumor and identified a missense mutation in the SH2 domain of GAP. A change in codon 401 from ATA to GTA resulted in substitution of valine for isoleucine. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8275088" 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="0004" class="mim-anchor"></a>
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<strong>.0004&nbsp;CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
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RASA1, 2-BP DEL, 475CT
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs797044451 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs797044451;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=rs797044451" 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=rs797044451" 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=RCV000017370 OR RCV000200157 OR RCV002228029 OR RCV003156050" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000017370, RCV000200157, RCV002228029, RCV003156050" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000017370...</a>
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<p><a href="#1" class="mim-tip-reference" title="Eerola, I., Boon, L. M., Mulliken, J. B., Burrows, P. E., Dompmartin, A., Watanabe, S., Vanwijck, R., Vikkula, M. &lt;strong&gt;Capillary malformation-arteriovenous malformation, a new clinical and genetic disorder caused by RASA1 mutations.&lt;/strong&gt; Am. J. Hum. Genet. 73: 1240-1249, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14639529/&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;14639529&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=14639529[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/379793&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="14639529">Eerola et al. (2003)</a> described a family (PW1) with capillary malformation-arteriovenous malformation-1 (CMAVM1; <a href="/entry/608354">608354</a>) in which the proband had Parkes Weber syndrome in the lower limb. Both parents and 1 grandparent on both sides of the family had capillary malformations. The brother of the proband had an intracranial arteriovenous malformation as well as multiple cutaneous capillary malformations. A 2-bp deletion in the RASA1 cDNA, 475_476delCT, was found, causing a frameshift and a premature stop codon at residue 178; the frameshift occurred at amino acid 159. The father of the proband, with a large facial capillary malformation, was pictured, as was a grandfather of the proband, who had a large nuchal capillary malformation. Neither of these individuals had the mutation in the RASA1 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14639529" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0005&nbsp;CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
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RASA1, CYS540TYR
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs137853217 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs137853217;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=rs137853217" 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=rs137853217" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
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<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000017372" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000017372" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000017372</a>
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<p>In their family CM11, <a href="#1" class="mim-tip-reference" title="Eerola, I., Boon, L. M., Mulliken, J. B., Burrows, P. E., Dompmartin, A., Watanabe, S., Vanwijck, R., Vikkula, M. &lt;strong&gt;Capillary malformation-arteriovenous malformation, a new clinical and genetic disorder caused by RASA1 mutations.&lt;/strong&gt; Am. J. Hum. Genet. 73: 1240-1249, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14639529/&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;14639529&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=14639529[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/379793&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="14639529">Eerola et al. (2003)</a> found association of capillary malformation-arteriovenous malformation (CMAVM1; <a href="/entry/608354">608354</a>) with a missense mutation of the RASA1 cDNA: a 1619G-A transition predicted to result in a cys540-to-tyr (C540Y) amino acid change in the PH domain of the corresponding RASA1 protein. Eight individuals in 4 sibships in 2 generations of the family carried the mutation. One member of family CM11 had a facial capillary stain and hypertrophy distal to an arteriovenous fistula, which was located between the left carotid artery and the jugular vein and caused cardiac overload, requiring medication since infancy. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14639529" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0006&nbsp;CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
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RASA1, ARG285TER
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs137853218 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs137853218;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=rs137853218" 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=rs137853218" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
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<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000017373 OR RCV003458336 OR RCV003764578 OR RCV003894810" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000017373, RCV003458336, RCV003764578, RCV003894810" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000017373...</a>
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<p>In affected members of an Ashkenazi Jewish family with capillary malformations (CMAVM1; <a href="/entry/608354">608354</a>), <a href="#5" class="mim-tip-reference" title="Hershkovitz, D., Bercovich, D., Sprecher, E., Lapidot, M. &lt;strong&gt;RASA1 mutations may cause hereditary capillary malformations without arteriovenous malformations.&lt;/strong&gt; Brit. J. Derm. 158: 1035-1040, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18363760/&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;18363760&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1365-2133.2008.08493.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="18363760">Hershkovitz et al. (2008)</a> identified a heterozygous 853C-T transition in the RASA1 gene, resulting in an arg285-to-ter (R285X) substitution. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18363760" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0007&nbsp;CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
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RASA1, IVS3AS, G-A, -9
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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> rs1348578241 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1348578241;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/rs1348578241?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=rs1348578241" 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=rs1348578241" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
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<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000017374" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000017374" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000017374</a>
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<p>In 2 twin brothers of Ashkenazi Jewish descent with capillary malformation-arteriovenous malformation (CMAVM1; <a href="/entry/608354">608354</a>), <a href="#5" class="mim-tip-reference" title="Hershkovitz, D., Bercovich, D., Sprecher, E., Lapidot, M. &lt;strong&gt;RASA1 mutations may cause hereditary capillary malformations without arteriovenous malformations.&lt;/strong&gt; Brit. J. Derm. 158: 1035-1040, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18363760/&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;18363760&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1365-2133.2008.08493.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="18363760">Hershkovitz et al. (2008)</a> identified a heterozygous G-to-A transition in intron 3 of the RASA1 gene (829-9G-A), resulting in a frameshift and premature termination. The proband had a small arteriovenous shunt in the outer ear. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18363760" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0008&nbsp;CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
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RASA1, 4-BP DUP, 2252TCAT
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs1580386963 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1580386963;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=rs1580386963" 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=rs1580386963" 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=RCV000017375" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000017375" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000017375</a>
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<p>In affected members of an Ashkenazi Jewish family with capillary malformations (CMAVM1; <a href="/entry/608354">608354</a>), <a href="#5" class="mim-tip-reference" title="Hershkovitz, D., Bercovich, D., Sprecher, E., Lapidot, M. &lt;strong&gt;RASA1 mutations may cause hereditary capillary malformations without arteriovenous malformations.&lt;/strong&gt; Brit. J. Derm. 158: 1035-1040, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18363760/&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;18363760&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1365-2133.2008.08493.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="18363760">Hershkovitz et al. (2008)</a> identified a heterozygous 4-bp duplication (2252dupTCAT) in the RASA1 gene, resulting in a frameshift and premature termination. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18363760" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>REFERENCES</strong>
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<a id="1" class="mim-anchor"></a>
<a id="Eerola2003" class="mim-anchor"></a>
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Eerola, I., Boon, L. M., Mulliken, J. B., Burrows, P. E., Dompmartin, A., Watanabe, S., Vanwijck, R., Vikkula, M.
<strong>Capillary malformation-arteriovenous malformation, a new clinical and genetic disorder caused by RASA1 mutations.</strong>
Am. J. Hum. Genet. 73: 1240-1249, 2003.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/14639529/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">14639529</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=14639529[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14639529" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1086/379793" target="_blank">Full Text</a>]
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<a id="Eerola2002" class="mim-anchor"></a>
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Eerola, I., Boon, L. M., Watanabe, S., Grynberg, H., Mulliken, J. B., Vikkula, M.
<strong>Locus for susceptibility for familial capillary malformation ('port-wine stain') maps to 5q.</strong>
Europ. J. Hum. Genet. 10: 375-380, 2002.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12080389/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12080389</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12080389" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/sj.ejhg.5200817" target="_blank">Full Text</a>]
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<a id="Eerola2000" class="mim-anchor"></a>
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Eerola, I., Plate, K. H., Spiegel, R., Boon, L. M., Mulliken, J. B., Vikkula, M.
<strong>KRIT1 is mutated in hyperkeratotic cutaneous capillary-venous malformation associated with cerebral capillary malformation.</strong>
Hum. Molec. Genet. 9: 1351-1355, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10814716/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10814716</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10814716" 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/9.9.1351" target="_blank">Full Text</a>]
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<a id="Friedman1993" class="mim-anchor"></a>
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Friedman, E., Gejman, P. V., Martin, G. A., McCormick, F.
<strong>Nonsense mutations in the C-terminal SH2 region of the GTPase activating protein (GAP) gene in human tumours.</strong>
Nature Genet. 5: 242-247, 1993.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8275088/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8275088</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8275088" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/ng1193-242" target="_blank">Full Text</a>]
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<a id="Hershkovitz2008" class="mim-anchor"></a>
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<p class="mim-text-font">
Hershkovitz, D., Bercovich, D., Sprecher, E., Lapidot, M.
<strong>RASA1 mutations may cause hereditary capillary malformations without arteriovenous malformations.</strong>
Brit. J. Derm. 158: 1035-1040, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18363760/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18363760</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18363760" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1111/j.1365-2133.2008.08493.x" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="6" class="mim-anchor"></a>
<a id="Hsieh1989" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Hsieh, C. L., Francke, U.
<strong>The gene for GTPase activating protein (GAP) is on human chromosome 5q and mouse chromosome 13. (Abstract)</strong>
Cytogenet. Cell Genet. 51: 1016 only, 1989.
</p>
</div>
</li>
<li>
<a id="7" class="mim-anchor"></a>
<a id="Hsieh1989" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Hsieh, C. L., Vogel, U. S., Dixon, R. A., Francke, U.
<strong>Chromosome localization and cDNA sequence of murine and human genes for ras p21 GTPase activating protein (GAP).</strong>
Somat. Cell Molec. Genet. 15: 579-590, 1989.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/2574500/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">2574500</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=2574500" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/BF01534919" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="8" class="mim-anchor"></a>
<a id="Labauge1999" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Labauge, P., Enjolras, O., Bonerandi, J.-J., Laberge, S., Dandurand, M., Joujoux, J.-M., Tournier-Lasserve, E.
<strong>An association between autosomal dominant cerebral cavernomas and a distinctive hyperkeratotic cutaneous vascular malformation in 4 families.</strong>
Ann. Neurol. 45: 250-254, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9989629/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9989629</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9989629" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/1531-8249(199902)45:2&lt;250::aid-ana17&gt;3.0.co;2-v" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="9" class="mim-anchor"></a>
<a id="Lemons1990" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Lemons, R. S., Espinosa, R., III, Rebentisch, M., McCormick, F., Ladner, M., Le Beau, M. M.
<strong>Chromosomal localization of the gene encoding GTPase-activating protein (RASA) to human chromosome 5, bands q13-q15.</strong>
Genomics 6: 383-385, 1990.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/2307479/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">2307479</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=2307479" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/0888-7543(90)90581-e" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="10" class="mim-anchor"></a>
<a id="Lubeck2015" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Lubeck, B. A., Lapinski, P. E., Oliver, J. A., Ksionda, O., Parada, L. F., Zhu, Y., Maillard, I., Chiang, M., Roose, J., King, P. D.
<strong>Cutting edge: codeletion of the Ras GTPase-activating proteins (RasGAPs) neurofibromin 1 and p120 RasGAP in T cells results in the development of T cell acute lymphoblastic leukemia.</strong>
J. Immun. 195: 31-35, 2015.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/26002977/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">26002977</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=26002977" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.4049/jimmunol.1402639" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="11" class="mim-anchor"></a>
<a id="Mitsudomi1994" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Mitsudomi, T., Friedman, E., Gejman, P. V., McCormick, F., Gazdar, A. F.
<strong>Genetic analysis of the catalytic domain of the GAP gene in human lung cancer cell lines.</strong>
Hum. Genet. 93: 27-31, 1994.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8270251/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8270251</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8270251" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/BF00218908" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="12" class="mim-anchor"></a>
<a id="Revencu2013" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Revencu, N., Boon, L. M., Mendola, A., Cordisco, M. R., Dubois, J., Clapuyt, P., Hammer, F., Amor, D. J., Irvine, A. D., Baselga, E., Dompmartin, A., Syed, S., and 40 others.
<strong>RASA1 mutations and associated phenotypes in 68 families with capillary malformation-arteriovenous malformation.</strong>
Hum. Mutat. 34: 1632-1641, 2013.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/24038909/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">24038909</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24038909" 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.22431" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="13" class="mim-anchor"></a>
<a id="Trahey1988" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Trahey, M., Wong, G., Halenbeck, R., Rubinfeld, B., Martin, G. A., Ladner, M., Long, C. M., Crosier, W. J., Watt, K., Koths, K., McCormick, F.
<strong>Molecular cloning of two types of GAP complementary DNA from human placenta.</strong>
Science 242: 1697-1700, 1988.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/3201259/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">3201259</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3201259" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1126/science.3201259" target="_blank">Full Text</a>]
</p>
</div>
</li>
</ol>
<div>
<br />
</div>
</div>
</div>
<div>
<a id="contributors" class="mim-anchor"></a>
<div class="row">
<div class="col-lg-2 col-md-2 col-sm-4 col-xs-4">
<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">
Paul J. Converse - updated : 3/3/2016
</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">
Cassandra L. Kniffin - updated : 10/4/2010<br>Cassandra L. Kniffin - updated : 2/16/2009<br>Victor A. McKusick - updated : 12/18/2003
</span>
</div>
</div>
</div>
<div>
<a id="creationDate" 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">
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 : 1/13/1989
</span>
</div>
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<div>
<a id="editHistory" class="mim-anchor"></a>
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<div class="col-lg-2 col-md-2 col-sm-4 col-xs-4">
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<a href="#mimCollapseEditHistory" role="button" data-toggle="collapse"> Edit History: </a>
</span>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
alopez : 03/04/2020
</span>
</div>
</div>
<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">
carol : 11/26/2018<br>carol : 11/21/2018<br>mgross : 03/03/2016<br>mgross : 3/3/2016<br>carol : 8/6/2015<br>carol : 7/22/2014<br>carol : 7/21/2014<br>carol : 9/5/2013<br>carol : 8/12/2011<br>joanna : 6/10/2011<br>wwang : 10/11/2010<br>ckniffin : 10/4/2010<br>wwang : 2/20/2009<br>ckniffin : 2/16/2009<br>ckniffin : 2/16/2009<br>joanna : 12/19/2005<br>alopez : 12/19/2003<br>terry : 12/18/2003<br>alopez : 12/23/1998<br>psherman : 6/19/1998<br>mark : 12/20/1996<br>jamie : 12/19/1996<br>carol : 3/18/1994<br>carol : 12/9/1993<br>supermim : 3/16/1992<br>carol : 5/16/1991<br>carol : 7/2/1990<br>supermim : 3/20/1990
</span>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="container visible-print-block">
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<div class="col-md-8 col-md-offset-1">
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<h3>
<span class="mim-font">
<strong>*</strong> 139150
</span>
</h3>
</div>
<div>
<h3>
<span class="mim-font">
RAS p21 PROTEIN ACTIVATOR 1; RASA1
</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">
GUANOSINE TRIPHOSPHATASE-ACTIVATING PROTEIN<br />
GTPase-ACTIVATING PROTEIN; GAP<br />
p120 RASGAP
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<p>
<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: RASA1</em></strong>
</span>
</p>
</div>
<div>
<p>
<span class="mim-text-font">
<strong>
<em>
Cytogenetic location: 5q14.3
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : 5:87,267,883-87,391,916 </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="2">
<span class="mim-font">
5q14.3
</span>
</td>
<td>
<span class="mim-font">
Basal cell carcinoma, somatic
</span>
</td>
<td>
<span class="mim-font">
605462
</span>
</td>
<td>
<span class="mim-font">
</span>
</td>
<td>
<span class="mim-font">
3
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
Capillary malformation-arteriovenous malformation 1
</span>
</td>
<td>
<span class="mim-font">
608354
</span>
</td>
<td>
<span class="mim-font">
Autosomal dominant
</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>The RAS gene family encodes membrane-associated, guanine nucleotide-binding proteins (p21) that are involved in the control of cellular proliferation and differentiation. Similar to other guanine-binding proteins (such as the heterotrimeric G proteins), the RAS proteins cycle between an active guanosine-triphosphate (GTP) bound form and an inactive, guanosine-diphosphate (GDP) bound form. The weak intrinsic GTPase activity of RAS proteins is greatly enhanced by the action of GTPase-activating proteins (GAPs), such as RASA1, which are effectors of RAS oncogene action (Trahey et al., 1988). </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>Trahey et al. (1988) purified RASA1 protein, which they called GAP, from placenta and obtained internal amino acid sequence of the protein from which they cloned 2 RASA1 transcripts. One transcript predicted a protein with molecular weight similar to purified GAP and corresponded to the human equivalent of bovine GAP cDNA. The other transcript predicted a smaller protein with a different N-terminal sequence, presumably the result of differential splicing. Both transcripts produced protein with GAP activity. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>By the combination of somatic cell hybrid analysis and in situ hybridization, Hsieh et al. (1989) assigned the RASA1 gene to chromosome 5q13.3. Lemons et al. (1990) localized the RASA1 gene to chromosome 5q13-q15 by Southern analysis of somatic cell hybrids and by in situ hybridization. </p><p>Hsieh and Francke (1989) mapped the mouse Rasa1 gene to the distal end of chromosome 13.</p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p><strong><em>Capillary Malformation-Arteriovenous Malformation 1</em></strong></p><p>
Starting with a family study of capillary malformation, or 'port-wine stain' (163000), Eerola et al. (2002, 2003) identified a susceptibility locus on 5q, which was initially referred to as CMC1. Eerola et al. (2003) screened for mutations in RASA1, which was a positional candidate, in 17 families. Heterozygous inactivating RASA1 mutations were detected in 6 families manifesting atypical capillary malformations associated with arteriovenous malformation, arteriovenous fistula, or Parkes Weber syndrome. Eerola et al. (2003) named this new entity caused by RASA1 mutations 'capillary malformation-arteriovenous malformation' (CMAVM1; 608354). The phenotypic variability was thought to be explained by the involvement of p120-RasGAP in signaling for various growth factor receptors that control proliferation, migration, and survival of several cell types, including vascular endothelial cells. </p><p>Another inherited vascular malformation, cerebral capillary malformation (CCM; 116860), has also been related to misregulated Ras signaling. The mutated protein, KRIT1 (604214) was originally identified as a binding partner of Rap1a (179520), an antagonist of Ras transformation. KRIT1 has also been shown to bind ICAP1 (607153), a protein that links integrins and the actin cytoskeleton, which implies a process of integrin-signaling-mediated cellular adhesion in the pathogenesis of CCM. CMAVM and CCM may be due to similar cellular processes, since p120-RasGAP can bind Rap1a, which has an important role in integrin-mediated cellular adhesion. It is noteworthy that in certain families with CCM and mutations in KRIT1, some members also have cutaneous lesions characterized as hyperkeratotic capillary-venous malformations (Labauge et al., 1999; Eerola et al., 2000). </p><p>In affected members of 3 Ashkenazi Jewish families with capillary malformations, Hershkovitz et al. (2008) identified heterozygous mutations in the RASA1 gene (139150.0006-139150.0008). An arteriovenous malformation was only identified in 1 of the families, suggesting that the phenotypic spectrum of RASA1-related CMAVM can include patients with only capillary malformations. </p><p>In a combined retrospective and prospective study of 261 individuals with CMAVM and related phenotypes, Revencu et al. (2013) screened for mutations in the RASA1 gene and identified 58 in 68 of the 100 individuals with CMAVM and in none in those with related disorders, including 100 with common CMs, 37 with Sturge-Weber syndrome, and 24 with AVMs. The 68 CMAVM patients with mutations included 32 males and 36 females of European, Hispanic, or Asian ancestry; 7 of the patients had Parkes-Weber syndrome. The 58 mutations, 43 of which were novel, were predominantly truncating mutations; 52 were private mutations. </p><p>Revencu et al. (2013) analyzed DNA from a neurofibroma that had developed in a congenital Parkes-Weber lesion in a CMAVM patient with a previously confirmed germline mutation in the RASA1 gene. The DHPLC elution profile was indicative of loss of function of the wildtype allele in the tissue. SNP array showed mosaic loss of chromosome 5q, including the RASA1 gene, and part of chromosome 22, including the NF2 gene (607379). Sequencing of the NF2 gene revealed a nonsense mutation in the tissue, but not in the blood. The authors suggested that the 2 hits in the NF2 gene explain the development of the neurofibroma, and they speculated that the somatic loss of 5q, including the RASA1 gene, is involved in the pathogenesis of the Parkes Weber lesion. </p><p><strong><em>Basal Cell Carcinoma, Somatic</em></strong></p><p>
Point mutations in RAS genes ('activating' or oncogenic mutants) decrease the intrinsic GTPase activity of RAS and are insensitive to stimulation by GAPs. This suggested to Friedman et al. (1993) that at least some of the transforming activity of mutant RAS is conferred by the RAS protein being constitutively activated in its GTP-bound state. Mutations in RAS that render it insensitive to GAP regulation result in tumor formation. Mutations in GAP that ablate its ability to downregulate RAS might result in a similar phenotype. To test this hypothesis, Friedman et al. (1993) analyzed 188 human tumor samples for mutations within the catalytic domain of the GAP gene and for mutations within its C-terminal SH2 region. Although no mutations could be demonstrated in the catalytic domain, 3 different nonsense mutations were observed in basal cell carcinomas. The region in which the mutations were clustered is A/T rich, raising the possibility that UV radiation is a contributing factor. The 3 mutations were found in the first 5 tumors examined. No abnormality was found in 16 other basal cell carcinomas. Thus, the apparent prevalence of GAP mutation was about 14% (3 of 21). The tumors analyzed included a great variety, including cancers of thyroid, lung, breast, colon, and pancreas. No GAP mutation was found in any of these. Mitsudomi et al. (1994) could not demonstrate mutations in the catalytic domain of the GAP gene in human lung cancer cell lines. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Animal Model</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Lubeck et al. (2015) found that mice lacking both Nf1 (613113) and Rasa1 in T cells, but not those lacking either Nf1 or Rasa1 alone, developed T-cell acute lymphoblastic leukemia/lymphoma (see 613065) that originated at an early point in T-cell development and was dependent on activating mutations in Notch1 (190198). Lubeck et al. (2015) concluded that RASA1 and NF1 are co-tumor suppressors in the T-cell lineage. </p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>8 Selected Examples):</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; BASAL CELL CARCINOMA, SOMATIC</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
RASA1, ARG398LEU
<br />
SNP: rs137853214,
ClinVar: RCV000017367
</span>
</div>
<div>
<span class="mim-text-font">
<p>Using denaturing gradient gel electrophoresis (DGGE) and direct sequence analysis, Friedman et al. (1993) screened a basal cell carcinoma tumor and identified a missense mutation in the SH2 domain of GAP. A change in codon 398 from CGA to CTA resulted in substitution of leucine for arginine. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0002 &nbsp; BASAL CELL CARCINOMA, SOMATIC</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
RASA1, LYS400GLY
<br />
SNP: rs137853215,
ClinVar: RCV000017368
</span>
</div>
<div>
<span class="mim-text-font">
<p>Using DGGE and direct sequence analysis, Friedman et al. (1993) screened a basal cell carcinoma tumor and identified a missense mutation in the SH2 domain of GAP. A change in codon 400 from AAA to GAA resulted in substitution of glycine for lysine. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0003 &nbsp; BASAL CELL CARCINOMA, SOMATIC</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
RASA1, ILE401VAL
<br />
SNP: rs137853216,
ClinVar: RCV000017369
</span>
</div>
<div>
<span class="mim-text-font">
<p>Using DGGE and direct sequence analysis, Friedman et al. (1993) screened a basal cell carcinoma tumor and identified a missense mutation in the SH2 domain of GAP. A change in codon 401 from ATA to GTA resulted in substitution of valine for isoleucine. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0004 &nbsp; CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
RASA1, 2-BP DEL, 475CT
<br />
SNP: rs797044451,
ClinVar: RCV000017370, RCV000200157, RCV002228029, RCV003156050
</span>
</div>
<div>
<span class="mim-text-font">
<p>Eerola et al. (2003) described a family (PW1) with capillary malformation-arteriovenous malformation-1 (CMAVM1; 608354) in which the proband had Parkes Weber syndrome in the lower limb. Both parents and 1 grandparent on both sides of the family had capillary malformations. The brother of the proband had an intracranial arteriovenous malformation as well as multiple cutaneous capillary malformations. A 2-bp deletion in the RASA1 cDNA, 475_476delCT, was found, causing a frameshift and a premature stop codon at residue 178; the frameshift occurred at amino acid 159. The father of the proband, with a large facial capillary malformation, was pictured, as was a grandfather of the proband, who had a large nuchal capillary malformation. Neither of these individuals had the mutation in the RASA1 gene. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0005 &nbsp; CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
RASA1, CYS540TYR
<br />
SNP: rs137853217,
ClinVar: RCV000017372
</span>
</div>
<div>
<span class="mim-text-font">
<p>In their family CM11, Eerola et al. (2003) found association of capillary malformation-arteriovenous malformation (CMAVM1; 608354) with a missense mutation of the RASA1 cDNA: a 1619G-A transition predicted to result in a cys540-to-tyr (C540Y) amino acid change in the PH domain of the corresponding RASA1 protein. Eight individuals in 4 sibships in 2 generations of the family carried the mutation. One member of family CM11 had a facial capillary stain and hypertrophy distal to an arteriovenous fistula, which was located between the left carotid artery and the jugular vein and caused cardiac overload, requiring medication since infancy. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0006 &nbsp; CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
RASA1, ARG285TER
<br />
SNP: rs137853218,
ClinVar: RCV000017373, RCV003458336, RCV003764578, RCV003894810
</span>
</div>
<div>
<span class="mim-text-font">
<p>In affected members of an Ashkenazi Jewish family with capillary malformations (CMAVM1; 608354), Hershkovitz et al. (2008) identified a heterozygous 853C-T transition in the RASA1 gene, resulting in an arg285-to-ter (R285X) substitution. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0007 &nbsp; CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
RASA1, IVS3AS, G-A, -9
<br />
SNP: rs1348578241,
gnomAD: rs1348578241,
ClinVar: RCV000017374
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 twin brothers of Ashkenazi Jewish descent with capillary malformation-arteriovenous malformation (CMAVM1; 608354), Hershkovitz et al. (2008) identified a heterozygous G-to-A transition in intron 3 of the RASA1 gene (829-9G-A), resulting in a frameshift and premature termination. The proband had a small arteriovenous shunt in the outer ear. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0008 &nbsp; CAPILLARY MALFORMATION-ARTERIOVENOUS MALFORMATION 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
RASA1, 4-BP DUP, 2252TCAT
<br />
SNP: rs1580386963,
ClinVar: RCV000017375
</span>
</div>
<div>
<span class="mim-text-font">
<p>In affected members of an Ashkenazi Jewish family with capillary malformations (CMAVM1; 608354), Hershkovitz et al. (2008) identified a heterozygous 4-bp duplication (2252dupTCAT) in the RASA1 gene, resulting in a frameshift and premature termination. </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">
Eerola, I., Boon, L. M., Mulliken, J. B., Burrows, P. E., Dompmartin, A., Watanabe, S., Vanwijck, R., Vikkula, M.
<strong>Capillary malformation-arteriovenous malformation, a new clinical and genetic disorder caused by RASA1 mutations.</strong>
Am. J. Hum. Genet. 73: 1240-1249, 2003.
[PubMed: 14639529]
[Full Text: https://doi.org/10.1086/379793]
</p>
</li>
<li>
<p class="mim-text-font">
Eerola, I., Boon, L. M., Watanabe, S., Grynberg, H., Mulliken, J. B., Vikkula, M.
<strong>Locus for susceptibility for familial capillary malformation (&#x27;port-wine stain&#x27;) maps to 5q.</strong>
Europ. J. Hum. Genet. 10: 375-380, 2002.
[PubMed: 12080389]
[Full Text: https://doi.org/10.1038/sj.ejhg.5200817]
</p>
</li>
<li>
<p class="mim-text-font">
Eerola, I., Plate, K. H., Spiegel, R., Boon, L. M., Mulliken, J. B., Vikkula, M.
<strong>KRIT1 is mutated in hyperkeratotic cutaneous capillary-venous malformation associated with cerebral capillary malformation.</strong>
Hum. Molec. Genet. 9: 1351-1355, 2000.
[PubMed: 10814716]
[Full Text: https://doi.org/10.1093/hmg/9.9.1351]
</p>
</li>
<li>
<p class="mim-text-font">
Friedman, E., Gejman, P. V., Martin, G. A., McCormick, F.
<strong>Nonsense mutations in the C-terminal SH2 region of the GTPase activating protein (GAP) gene in human tumours.</strong>
Nature Genet. 5: 242-247, 1993.
[PubMed: 8275088]
[Full Text: https://doi.org/10.1038/ng1193-242]
</p>
</li>
<li>
<p class="mim-text-font">
Hershkovitz, D., Bercovich, D., Sprecher, E., Lapidot, M.
<strong>RASA1 mutations may cause hereditary capillary malformations without arteriovenous malformations.</strong>
Brit. J. Derm. 158: 1035-1040, 2008.
[PubMed: 18363760]
[Full Text: https://doi.org/10.1111/j.1365-2133.2008.08493.x]
</p>
</li>
<li>
<p class="mim-text-font">
Hsieh, C. L., Francke, U.
<strong>The gene for GTPase activating protein (GAP) is on human chromosome 5q and mouse chromosome 13. (Abstract)</strong>
Cytogenet. Cell Genet. 51: 1016 only, 1989.
</p>
</li>
<li>
<p class="mim-text-font">
Hsieh, C. L., Vogel, U. S., Dixon, R. A., Francke, U.
<strong>Chromosome localization and cDNA sequence of murine and human genes for ras p21 GTPase activating protein (GAP).</strong>
Somat. Cell Molec. Genet. 15: 579-590, 1989.
[PubMed: 2574500]
[Full Text: https://doi.org/10.1007/BF01534919]
</p>
</li>
<li>
<p class="mim-text-font">
Labauge, P., Enjolras, O., Bonerandi, J.-J., Laberge, S., Dandurand, M., Joujoux, J.-M., Tournier-Lasserve, E.
<strong>An association between autosomal dominant cerebral cavernomas and a distinctive hyperkeratotic cutaneous vascular malformation in 4 families.</strong>
Ann. Neurol. 45: 250-254, 1999.
[PubMed: 9989629]
[Full Text: https://doi.org/10.1002/1531-8249(199902)45:2&lt;250::aid-ana17&gt;3.0.co;2-v]
</p>
</li>
<li>
<p class="mim-text-font">
Lemons, R. S., Espinosa, R., III, Rebentisch, M., McCormick, F., Ladner, M., Le Beau, M. M.
<strong>Chromosomal localization of the gene encoding GTPase-activating protein (RASA) to human chromosome 5, bands q13-q15.</strong>
Genomics 6: 383-385, 1990.
[PubMed: 2307479]
[Full Text: https://doi.org/10.1016/0888-7543(90)90581-e]
</p>
</li>
<li>
<p class="mim-text-font">
Lubeck, B. A., Lapinski, P. E., Oliver, J. A., Ksionda, O., Parada, L. F., Zhu, Y., Maillard, I., Chiang, M., Roose, J., King, P. D.
<strong>Cutting edge: codeletion of the Ras GTPase-activating proteins (RasGAPs) neurofibromin 1 and p120 RasGAP in T cells results in the development of T cell acute lymphoblastic leukemia.</strong>
J. Immun. 195: 31-35, 2015.
[PubMed: 26002977]
[Full Text: https://doi.org/10.4049/jimmunol.1402639]
</p>
</li>
<li>
<p class="mim-text-font">
Mitsudomi, T., Friedman, E., Gejman, P. V., McCormick, F., Gazdar, A. F.
<strong>Genetic analysis of the catalytic domain of the GAP gene in human lung cancer cell lines.</strong>
Hum. Genet. 93: 27-31, 1994.
[PubMed: 8270251]
[Full Text: https://doi.org/10.1007/BF00218908]
</p>
</li>
<li>
<p class="mim-text-font">
Revencu, N., Boon, L. M., Mendola, A., Cordisco, M. R., Dubois, J., Clapuyt, P., Hammer, F., Amor, D. J., Irvine, A. D., Baselga, E., Dompmartin, A., Syed, S., and 40 others.
<strong>RASA1 mutations and associated phenotypes in 68 families with capillary malformation-arteriovenous malformation.</strong>
Hum. Mutat. 34: 1632-1641, 2013.
[PubMed: 24038909]
[Full Text: https://doi.org/10.1002/humu.22431]
</p>
</li>
<li>
<p class="mim-text-font">
Trahey, M., Wong, G., Halenbeck, R., Rubinfeld, B., Martin, G. A., Ladner, M., Long, C. M., Crosier, W. J., Watt, K., Koths, K., McCormick, F.
<strong>Molecular cloning of two types of GAP complementary DNA from human placenta.</strong>
Science 242: 1697-1700, 1988.
[PubMed: 3201259]
[Full Text: https://doi.org/10.1126/science.3201259]
</p>
</li>
</ol>
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Paul J. Converse - updated : 3/3/2016<br>Cassandra L. Kniffin - updated : 10/4/2010<br>Cassandra L. Kniffin - updated : 2/16/2009<br>Victor A. McKusick - updated : 12/18/2003
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