nih-gov/www.ncbi.nlm.nih.gov/omim/603593

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<title>
Entry
- *603593 - SOLUTE CARRIER FAMILY 7 (CATIONIC AMINO ACID TRANSPORTER, y+ SYSTEM), MEMBER 7; SLC7A7
- OMIM
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<span class="h4">*603593</span>
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<strong>Table of Contents</strong>
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<a href="#title"><strong>Title</strong></a>
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<a href="#geneMap"><strong>Gene-Phenotype Relationships</strong></a>
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<a href="#text"><strong>Text</strong></a>
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<a href="#description">Description</a>
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<a href="#cloning">Cloning and Expression</a>
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<a href="#geneStructure">Gene Structure</a>
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<a href="#mapping">Mapping</a>
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<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#allelicVariants"><strong>Allelic Variants</strong></a>
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<span id="mimProteinLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9658;</span> Protein
</a>
</span>
</span>
</div>
<div id="mimProteinLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://hprd.org/summary?hprd_id=04667&isoform_id=04667_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/SLC7A7" 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/3970725,3982910,4581435,6497099,7670283,9836572,12643378,13111752,14603298,28071142,28207931,62088762,119586649,119586650,119586651,119586652,186910304,186910306,186910308,189067277,194375359,767981863,957950583,957950586,957950589,2217298813,2462542005,2462542007" 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/Q9UM01" 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">
<div style="display: table-row">
<div id="mimGeneInfoLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Gene Info</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimGeneInfoLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="http://biogps.org/#goto=genereport&id=9056" 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=ENSG00000155465;t=ENST00000674313" 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=SLC7A7" 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=SLC7A7" 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+9056" 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/SLC7A7" 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:9056" 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/9056" 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=chr14&hgg_gene=ENST00000674313.1&hgg_start=22773222&hgg_end=22819791&hgg_type=knownGene" class="mim-tip-hint" title="UCSC Genome Bioinformatics; gene-specific structure and function information with links to other databases." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UCSC', 'domain': 'genome.ucsc.edu'})">UCSC</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimClinicalResources">
<span class="panel-title">
<span class="small">
<a href="#mimClinicalResourcesLinksFold" id="mimClinicalResourcesLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimClinicalResourcesLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Clinical Resources</div>
</div>
</a>
</span>
</span>
</div>
<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:11065" 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:11065" 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/slc7a7" 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=603593[mim]" class="mim-tip-hint" title="Genetic Testing Registry." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GTR', 'domain': 'ncbi.nlm.nih.gov'})">GTR</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimVariation">
<span class="panel-title">
<span class="small">
<a href="#mimVariationLinksFold" id="mimVariationLinksToggle" class=" mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<span id="mimVariationLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9660;</span> Variation
</a>
</span>
</span>
</div>
<div id="mimVariationLinksFold" class="panel-collapse collapse in mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.ncbi.nlm.nih.gov/clinvar?term=603593[MIM]" class="mim-tip-hint" title="ClinVar aggregates information about sequence variation and its relationship to human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">ClinVar</a></div>
<div><a href="https://gnomad.broadinstitute.org/gene/ENSG00000155465" 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=SLC7A7" 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=SLC7A7" 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=SLC7A7" class="mim-tip-hint" title="Human Gene Mutation Database; published mutations causing or associated with human inherited disease; disease-associated/functional polymorphisms." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGMD', 'domain': 'hgmd.cf.ac.uk'})">HGMD</a></div>
<div><a href="https://evs.gs.washington.edu/EVS/PopStatsServlet?searchBy=Gene+Hugo&target=SLC7A7&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/PA35925" 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">
<a href="#mimAnimalModelsLinksFold" id="mimAnimalModelsLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<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:11065" 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/FBgn0002778.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:1337120" 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/SLC7A7#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:1337120" 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/9056/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=9056" 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=WBGene00000002;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-051127-5" 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">
<div style="display: table-row">
<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:9056" 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=SLC7A7&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">
<a href="#" class="mim-tip-icd" qtip_title="<strong>ICD+</strong>" qtip_text="
<strong>SNOMEDCT:</strong> 303852004<br />
">ICD+</a>
</div>
<div>
<span class="h3">
<span class="mim-font mim-tip-hint" title="Gene description">
<span class="text-danger"><strong>*</strong></span>
603593
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
SOLUTE CARRIER FAMILY 7 (CATIONIC AMINO ACID TRANSPORTER, y+ SYSTEM), MEMBER 7; SLC7A7
</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">
y(+)L-TYPE AMINO ACID TRANSPORTER 1<br />
y(+)LAT1
</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=SLC7A7" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">SLC7A7</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/14/65?start=-3&limit=10&highlight=65">14q11.2</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chr14:22773222-22819791&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'})">14:22,773,222-22,819,791</a> </span>
</em>
</strong>
<a href="https://www.ncbi.nlm.nih.gov/" target="_blank" class="small"> (from NCBI) </a>
</span>
</p>
</div>
<div>
<br />
</div>
<div>
<a id="geneMap" class="mim-anchor"></a>
<div style="margin-bottom: 10px;">
<span class="h4 mim-font">
<strong>Gene-Phenotype Relationships</strong>
</span>
</div>
<div>
<table class="table table-bordered table-condensed table-hover small mim-table-padding">
<thead>
<tr class="active">
<th>
Location
</th>
<th>
Phenotype
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="1">
<span class="mim-font">
<a href="/geneMap/14/65?start=-3&limit=10&highlight=65">
14q11.2
</a>
</span>
</td>
<td>
<span class="mim-font">
Lysinuric protein intolerance
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/222700"> 222700 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known">3</abbr>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group">
<button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
PheneGene Graphics <span class="caret"></span>
</button>
<ul class="dropdown-menu" style="width: 17em;">
<li><a href="/graph/linear/603593" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/603593" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
</ul>
</div>
<span class="glyphicon glyphicon-question-sign mim-tip-hint" title="OMIM PheneGene graphics depict relationships between phenotypes, groups of related phenotypes (Phenotypic Series), and genes.<br /><a href='/static/omim/pdf/OMIM_Graphics.pdf' target='_blank'>A quick reference overview and guide (PDF)</a>"></span>
</div>
<div>
<br />
</div>
<div>
<a id="text" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<span class="mim-tip-floating" qtip_title="<strong>Looking For More References?</strong>" qtip_text="Click the 'reference plus' icon &lt;span class='glyphicon glyphicon-plus-sign'&gt;&lt;/span&gt at the end of each OMIM text paragraph to see more references related to the content of the preceding paragraph.">
<strong>TEXT</strong>
</span>
</span>
</h4>
<div>
<a id="description" class="mim-anchor"></a>
<h4 href="#mimDescriptionFold" id="mimDescriptionToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimDescriptionToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Description</strong>
</span>
</h4>
</div>
<div id="mimDescriptionFold" class="collapse in ">
<span class="mim-text-font">
<p>The SLC7A7 gene encodes the light subunit of a cationic amino acid transporter. Together with the heavy chain, 4F2hc (SLC3A2; <a href="/entry/158070">158070</a>), the SLC7A7 protein forms a functional heterodimeric transporter on the basolateral cell membrane of epithelial cells that transfers lysine, arginine, and ornithine from the cell to the extracellular space (<a href="#9" class="mim-tip-reference" title="Torrents, D., Estevez, R., Pineda, M., Fernandez, E., Lloberas, J., Shi, Y.-B., Zorzano, A., Palacin, M. &lt;strong&gt;Identification and characterization of a membrane protein ((+)L amino acid transporter-1) that associates with 4F2hc to encode the amino acid transport activity y(+)L: a candidate gene for lysinuric protein intolerance.&lt;/strong&gt; J. Biol. Chem. 273: 32437-32445, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9829974/&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;9829974&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.273.49.32437&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="9829974">Torrents et al., 1998</a>; <a href="#5" class="mim-tip-reference" title="Puomila, K., Simell, O., Huoponen, K., Mykkanen, J. &lt;strong&gt;Two alternative promoters regulate the expression of lysinuric protein intolerance gene SLC7A7.&lt;/strong&gt; Molec. Genet. Metab. 90: 298-306, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17196863/&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;17196863&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ymgme.2006.11.007&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="17196863">Puomila et al., 2007</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=9829974+17196863" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<div>
<a id="cloning" class="mim-anchor"></a>
<h4 href="#mimCloningFold" id="mimCloningToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimCloningToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Cloning and Expression</strong>
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<p><a href="#9" class="mim-tip-reference" title="Torrents, D., Estevez, R., Pineda, M., Fernandez, E., Lloberas, J., Shi, Y.-B., Zorzano, A., Palacin, M. &lt;strong&gt;Identification and characterization of a membrane protein ((+)L amino acid transporter-1) that associates with 4F2hc to encode the amino acid transport activity y(+)L: a candidate gene for lysinuric protein intolerance.&lt;/strong&gt; J. Biol. Chem. 273: 32437-32445, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9829974/&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;9829974&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.273.49.32437&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="9829974">Torrents et al. (1998)</a> identified a human cDNA, designated SLC7A7, corresponding to the y(+)L-type amino acid transporter 1 subunit. The SLC7A7 gene encodes a deduced 511-residue protein with a molecular mass of 56 kD that contains 12 transmembrane domains. The protein sequence shows 81% homology to the opossum protein. Northern blot analysis identified a 2.4-kb mRNA transcript expressed in kidney, peripheral blood leukocytes, lung, placenta, spleen, and small intestine. SLC7A7 associated with SLC3A2 to form a functional 135-kD heterodimer linked by a disulfide bridge involving cysteine 109 of SLC3A2. Human SLC7A7 is mainly expressed at the basolateral membrane of epithelial cells in the renal tubules and small intestine. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9829974" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#4" class="mim-tip-reference" title="Noguchi, A., Shoji, Y., Koizumi, A., Takahashi, T., Shoji, Y., Matsumori, M., Kayo, T., Ohata, T., Wada, Y., Yoshimura, I., Maisawa, S., Konishi, M., Takasago, Y., Takada, G. &lt;strong&gt;SLC7A7 genomic structure and novel variants in three Japanese lysinuric protein intolerance families.&lt;/strong&gt; Hum. Mutat. 15: 367-372, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10737982/&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;10737982&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/(SICI)1098-1004(200004)15:4&lt;367::AID-HUMU9&gt;3.0.CO;2-C&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="10737982">Noguchi et al. (2000)</a> identified an alternatively spliced isoform of SLC7A7 that lacked exon 2, which is a noncoding exon. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10737982" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#5" class="mim-tip-reference" title="Puomila, K., Simell, O., Huoponen, K., Mykkanen, J. &lt;strong&gt;Two alternative promoters regulate the expression of lysinuric protein intolerance gene SLC7A7.&lt;/strong&gt; Molec. Genet. Metab. 90: 298-306, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17196863/&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;17196863&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ymgme.2006.11.007&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="17196863">Puomila et al. (2007)</a> characterized 2 functional promoters of the SLC7A7 gene: an 'upstream' promoter in front of exon 1 that appeared to be active in brain, and a 'downstream' TATA-box-containing promoter in front of exon 2 that was active in kidney, small intestine, and brain. <a href="#5" class="mim-tip-reference" title="Puomila, K., Simell, O., Huoponen, K., Mykkanen, J. &lt;strong&gt;Two alternative promoters regulate the expression of lysinuric protein intolerance gene SLC7A7.&lt;/strong&gt; Molec. Genet. Metab. 90: 298-306, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17196863/&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;17196863&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ymgme.2006.11.007&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="17196863">Puomila et al. (2007)</a> suggested that these promoters may play a role in tissue-specific regulation of SLC7A7 gene expression. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17196863" 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="geneStructure" class="mim-anchor"></a>
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<strong>Gene Structure</strong>
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<p>The SLC7A7 gene contains 11 exons and spans 47 kb of genomic DNA in the antisense strand. The codon for translation initiation is in exon 3 (<a href="#4" class="mim-tip-reference" title="Noguchi, A., Shoji, Y., Koizumi, A., Takahashi, T., Shoji, Y., Matsumori, M., Kayo, T., Ohata, T., Wada, Y., Yoshimura, I., Maisawa, S., Konishi, M., Takasago, Y., Takada, G. &lt;strong&gt;SLC7A7 genomic structure and novel variants in three Japanese lysinuric protein intolerance families.&lt;/strong&gt; Hum. Mutat. 15: 367-372, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10737982/&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;10737982&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/(SICI)1098-1004(200004)15:4&lt;367::AID-HUMU9&gt;3.0.CO;2-C&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="10737982">Noguchi et al., 2000</a>; <a href="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al., 2008</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=10737982+17764084" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
</span>
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<div>
<a id="mapping" class="mim-anchor"></a>
<h4 href="#mimMappingFold" id="mimMappingToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimMappingToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
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<strong>Mapping</strong>
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<p><a href="#9" class="mim-tip-reference" title="Torrents, D., Estevez, R., Pineda, M., Fernandez, E., Lloberas, J., Shi, Y.-B., Zorzano, A., Palacin, M. &lt;strong&gt;Identification and characterization of a membrane protein ((+)L amino acid transporter-1) that associates with 4F2hc to encode the amino acid transport activity y(+)L: a candidate gene for lysinuric protein intolerance.&lt;/strong&gt; J. Biol. Chem. 273: 32437-32445, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9829974/&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;9829974&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.273.49.32437&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="9829974">Torrents et al. (1998)</a> mapped the SLC7A7 gene to chromosome 14q11.2. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9829974" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<div>
<a id="molecularGenetics" class="mim-anchor"></a>
<h4 href="#mimMolecularGeneticsFold" id="mimMolecularGeneticsToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Molecular Genetics</strong>
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<p>In 31 Finnish patients with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>), <a href="#10" class="mim-tip-reference" title="Torrents, D., Mykkanen, J., Pineda, M., Feliubadalo, L., Estevez, R., de Cid, R., Sanjurjo, P., Zorzano, A., Nunes, V., Huoponen, K., Reinikainen, A., Simell, O., Savontaus, M.-L., Aula, P., Palacin, M. &lt;strong&gt;Identification of SLC7A7, encoding y(+)LAT-1, as the lysinuric protein intolerance gene.&lt;/strong&gt; Nature Genet. 21: 293-296, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080182/&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;10080182&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6809&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="10080182">Torrents et al. (1999)</a> identified homozygosity for a founder mutation in the SLC7A7 gene (<a href="#0001">603593.0001</a>). <a href="#1" class="mim-tip-reference" title="Borsani, G., Bassi, M. T., Sperandeo, M. P., De Grandi, A., Buoninconti, A., Riboni, M., Manzoni, M., Incerti, B., Pepe, A., Andria, G., Ballabio, A., Sebastio, G. &lt;strong&gt;SLC7A7, encoding a putative permease-related protein, is mutated in patients with lysinuric protein intolerance.&lt;/strong&gt; Nature Genet. 21: 297-301, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080183/&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;10080183&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6815&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="10080183">Borsani et al. (1999)</a> defined the Finnish mutation as a splice acceptor change resulting in a frameshift and premature translation termination. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=10080183+10080182" 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="#10" class="mim-tip-reference" title="Torrents, D., Mykkanen, J., Pineda, M., Feliubadalo, L., Estevez, R., de Cid, R., Sanjurjo, P., Zorzano, A., Nunes, V., Huoponen, K., Reinikainen, A., Simell, O., Savontaus, M.-L., Aula, P., Palacin, M. &lt;strong&gt;Identification of SLC7A7, encoding y(+)LAT-1, as the lysinuric protein intolerance gene.&lt;/strong&gt; Nature Genet. 21: 293-296, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080182/&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;10080182&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6809&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="10080182">Torrents et al. (1999)</a> also reported a Spanish LPI patient who was compound heterozygous for 2 mutations (<a href="#0005">603593.0005</a>; <a href="#0006">603593.0006</a>) in the SLC7A7 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080182" 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 5 Italian patients with LPI, <a href="#1" class="mim-tip-reference" title="Borsani, G., Bassi, M. T., Sperandeo, M. P., De Grandi, A., Buoninconti, A., Riboni, M., Manzoni, M., Incerti, B., Pepe, A., Andria, G., Ballabio, A., Sebastio, G. &lt;strong&gt;SLC7A7, encoding a putative permease-related protein, is mutated in patients with lysinuric protein intolerance.&lt;/strong&gt; Nature Genet. 21: 297-301, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080183/&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;10080183&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6815&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="10080183">Borsani et al. (1999)</a> found either an insertion or a deletion in the coding sequence of the SLC7A7 gene (<a href="#0002">603593.0002</a>; <a href="#0003">603593.0003</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080183" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#8" class="mim-tip-reference" title="Sperandeo, M. P., Bassi, M. T., Riboni, M., Parenti, G., Buoninconti, A., Manzoni, M., Incerti, B., Larocca, M. R., Di Rocco, M., Strisciuglio, P., Dianzani, I., Parini, R., Candito, M., Endo, F., Ballabio, A., Andria, G., Sebastio, G., Borsani, G. &lt;strong&gt;Structure of the SLC7A7 gene and mutational analysis of patients affected by lysinuric protein intolerance.&lt;/strong&gt; Am. J. Hum. Genet. 66: 92-99, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10631139/&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;10631139&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/302700&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="10631139">Sperandeo et al. (2000)</a> identified mutations in the SLC7A7 gene (see, e.g., <a href="#0004">603593.0004</a>) in Italian, Tunisian, and Japanese LPI patients. All mutant alleles in 11 unrelated families were characterized, and 8 novel mutations were detected. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10631139" 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="#3" class="mim-tip-reference" title="Mykkanen, J., Torrents, D., Pineda, M., Camps, M., Yoldi, M. E., Horelli-Kuitunen, N., Huoponen, K., Heinonen, M., Oksanen, J., Simell, O., Savontaus, M.-L., Zorzano, A., Palacin, M., Aula, P. &lt;strong&gt;Functional analysis of novel mutations in y+LAT-1 amino acid transporter gene causing lysinuric protein intolerance (LPI).&lt;/strong&gt; Hum. Molec. Genet. 9: 431-438, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10655553/&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;10655553&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/9.3.431&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="10655553">Mykkanen et al. (2000)</a> performed mutation screening of 20 non-Finnish LPI patients and found 10 novel mutations: 4 deletions, 2 missense mutations, 2 nonsense mutations, a splice site mutation, and a tandem duplication. Functional studies of 5 LPI mutations showed that all mutant proteins failed to induce amino acid transport activity when expressed with 4F2hc in Xenopus oocytes. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10655553" 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 2 Japanese LPI families, <a href="#4" class="mim-tip-reference" title="Noguchi, A., Shoji, Y., Koizumi, A., Takahashi, T., Shoji, Y., Matsumori, M., Kayo, T., Ohata, T., Wada, Y., Yoshimura, I., Maisawa, S., Konishi, M., Takasago, Y., Takada, G. &lt;strong&gt;SLC7A7 genomic structure and novel variants in three Japanese lysinuric protein intolerance families.&lt;/strong&gt; Hum. Mutat. 15: 367-372, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10737982/&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;10737982&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/(SICI)1098-1004(200004)15:4&lt;367::AID-HUMU9&gt;3.0.CO;2-C&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="10737982">Noguchi et al. (2000)</a> identified a homozygous mutation in the SLC7A7 gene (R410X; <a href="#0008">603593.0008</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10737982" 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="Shoji, Y., Noguchi, A., Shoji, Y., Matsumori, M., Takasago, Y., Takayanagi, M., Yoshida, Y., Ihara, K., Hara, T., Yamaguchi, S., Yoshino, M., Kaji, M., Yamamoto, S., Nakai, A., Koizumi, A., Hokezu, Y., Nagamatsu, K., Mikami, H., Kitajima, I., Takada, G. &lt;strong&gt;Five novel SLC7A7 variants and y(+)L gene-expression pattern in cultured lymphoblasts from Japanese patients with lysinuric protein intolerance.&lt;/strong&gt; Hum. Mutat. 20: 375-381, 2002.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12402335/&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;12402335&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.10140&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="12402335">Shoji et al. (2002)</a> identified 5 novel SLC7A7 variants in Japanese patients with LPI by PCR amplification and direct DNA sequencing. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12402335" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> identified 9 novel mutations in the SLC7A7 gene, and noted that a total of 43 different mutations had been identified in over 100 patients with LPI. Mutations were spread throughout the gene with no apparent genotype/phenotype correlations. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#2" class="mim-tip-reference" title="Font-Llitjos, M., Rodriguez-Santiago, B., Espino, M., Sillue, R., Manas, S., Gomez, L., Perez-Jurado, L. A., Palacin, M., Nunes, V. &lt;strong&gt;Novel SLC7A7 large rearrangements in lysinuric protein intolerance patients involving the same AluY repeat.&lt;/strong&gt; Europ. J. Hum. Genet. 17: 71-79, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18716612/&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;18716612&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18716612[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/10.1038/ejhg.2008.145&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="18716612">Font-Llitjos et al. (2009)</a> identified 11 mutations in the SLC7A7, including 7 novel mutations, in 11 patients from 9 unrelated families with LPI. Two of the mutations were large deletions involving exons 4 to 11 and exons 6 through 11 (<a href="#0011">603593.0011</a>), respectively. These deletions were identified using multiplex ligation probe amplification (MLPA) assay and were found to result from the recombination of Alu repeats at introns 3 and 5, respectively, and the same AluY sequence in the 3-prime region of the SLC7A7 gene. Patients with the large deletions had the most severe phenotypes, likely resulting from dramatic loss of transport function. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18716612" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="allelicVariants" class="mim-anchor"></a>
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<span id="mimAllelicVariantsToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>ALLELIC VARIANTS (<a href="/help/faq#1_4"></strong>
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<strong>11 Selected Examples</a>):</strong>
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<a href="/allelicVariants/603593" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=603593[MIM]" class="btn btn-default mim-tip-hint" role="button" title="ClinVar aggregates information about sequence variation and its relationship to human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">ClinVar</a>
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<a id="0001" class="mim-anchor"></a>
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<strong>.0001&nbsp;LYSINURIC PROTEIN INTOLERANCE</strong>
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SLC7A7, IVS6AS, A-T, -2
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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> rs146582474 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs146582474;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/rs146582474?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=rs146582474" 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=rs146582474" 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=RCV001007644" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV001007644" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV001007644</a>
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<p>In Finnish patients with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>), <a href="#10" class="mim-tip-reference" title="Torrents, D., Mykkanen, J., Pineda, M., Feliubadalo, L., Estevez, R., de Cid, R., Sanjurjo, P., Zorzano, A., Nunes, V., Huoponen, K., Reinikainen, A., Simell, O., Savontaus, M.-L., Aula, P., Palacin, M. &lt;strong&gt;Identification of SLC7A7, encoding y(+)LAT-1, as the lysinuric protein intolerance gene.&lt;/strong&gt; Nature Genet. 21: 293-296, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080182/&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;10080182&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6809&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="10080182">Torrents et al. (1999)</a> identified a homozygous A-to-T transversion in the acceptor splice site of intron 6 of the SLC7A7 gene. The mutation resulted in a 10-bp deletion beginning at nucleotide 1181, a frameshift, and premature protein truncation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080182" 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>The same mutation was identified by <a href="#1" class="mim-tip-reference" title="Borsani, G., Bassi, M. T., Sperandeo, M. P., De Grandi, A., Buoninconti, A., Riboni, M., Manzoni, M., Incerti, B., Pepe, A., Andria, G., Ballabio, A., Sebastio, G. &lt;strong&gt;SLC7A7, encoding a putative permease-related protein, is mutated in patients with lysinuric protein intolerance.&lt;/strong&gt; Nature Genet. 21: 297-301, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080183/&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;10080183&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6815&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="10080183">Borsani et al. (1999)</a> in 5 Finnish patients; they referred to the mutation as 1136-2A-T and found that it caused a 10-bp deletion due to the use of a second acceptor sequence, resulting in frameshift and premature termination 26 bp downstream. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080183" 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="#3" class="mim-tip-reference" title="Mykkanen, J., Torrents, D., Pineda, M., Camps, M., Yoldi, M. E., Horelli-Kuitunen, N., Huoponen, K., Heinonen, M., Oksanen, J., Simell, O., Savontaus, M.-L., Zorzano, A., Palacin, M., Aula, P. &lt;strong&gt;Functional analysis of novel mutations in y+LAT-1 amino acid transporter gene causing lysinuric protein intolerance (LPI).&lt;/strong&gt; Hum. Molec. Genet. 9: 431-438, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10655553/&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;10655553&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/9.3.431&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="10655553">Mykkanen et al. (2000)</a> demonstrated that the Finnish founder mutant protein had no residual activity and remained intracellular. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10655553" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to nucleotide 895-2A-T in the current nomenclature system. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="0002" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0002&nbsp;LYSINURIC PROTEIN INTOLERANCE</strong>
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SLC7A7, 455-BP DEL, NT197
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<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000006584" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000006584" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000006584</a>
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<p>In an Italian patient with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>), born to consanguineous parents, <a href="#1" class="mim-tip-reference" title="Borsani, G., Bassi, M. T., Sperandeo, M. P., De Grandi, A., Buoninconti, A., Riboni, M., Manzoni, M., Incerti, B., Pepe, A., Andria, G., Ballabio, A., Sebastio, G. &lt;strong&gt;SLC7A7, encoding a putative permease-related protein, is mutated in patients with lysinuric protein intolerance.&lt;/strong&gt; Nature Genet. 21: 297-301, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080183/&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;10080183&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6815&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="10080183">Borsani et al. (1999)</a> found homozygosity for a 543-bp deletion beginning at nucleotide 197 in the SLC7A7 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080183" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to a 455-bp deletion spanning nucleotides 45 to 499 in exon 3 in the current nomenclature system. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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;LYSINURIC PROTEIN INTOLERANCE</strong>
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SLC7A7, 4-BP INS, 1384ATCA
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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> rs386833805 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs386833805;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/rs386833805?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=rs386833805" 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=rs386833805" 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=RCV000049770" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000049770" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000049770</a>
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<p>In 4 Italian families, perhaps belonging to a single large pedigree, <a href="#1" class="mim-tip-reference" title="Borsani, G., Bassi, M. T., Sperandeo, M. P., De Grandi, A., Buoninconti, A., Riboni, M., Manzoni, M., Incerti, B., Pepe, A., Andria, G., Ballabio, A., Sebastio, G. &lt;strong&gt;SLC7A7, encoding a putative permease-related protein, is mutated in patients with lysinuric protein intolerance.&lt;/strong&gt; Nature Genet. 21: 297-301, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080183/&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;10080183&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6815&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="10080183">Borsani et al. (1999)</a> found that members with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>) were homozygous for a 4-bp insertion (1625insATCA) in exon 9 of the SLC7A7 gene, resulting in a frameshift at codon 462 and predicted translation termination 13 bp downstream. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080183" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to 1384insATCA in exon 10 of the SLC7A7 gene in the current nomenclature system. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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>.0004&nbsp;LYSINURIC PROTEIN INTOLERANCE</strong>
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SLC7A7, MET1LEU
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs121908676 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs121908676;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=rs121908676" 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=rs121908676" 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=RCV000006586" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000006586" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000006586</a>
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<p>In 2 brothers with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>), <a href="#8" class="mim-tip-reference" title="Sperandeo, M. P., Bassi, M. T., Riboni, M., Parenti, G., Buoninconti, A., Manzoni, M., Incerti, B., Larocca, M. R., Di Rocco, M., Strisciuglio, P., Dianzani, I., Parini, R., Candito, M., Endo, F., Ballabio, A., Andria, G., Sebastio, G., Borsani, G. &lt;strong&gt;Structure of the SLC7A7 gene and mutational analysis of patients affected by lysinuric protein intolerance.&lt;/strong&gt; Am. J. Hum. Genet. 66: 92-99, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10631139/&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;10631139&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/302700&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="10631139">Sperandeo et al. (2000)</a> identified a homozygous 242A-C transversion in the SLC7A7 gene, resulting in a met1-to-leu (M1L) substitution. <a href="#8" class="mim-tip-reference" title="Sperandeo, M. P., Bassi, M. T., Riboni, M., Parenti, G., Buoninconti, A., Manzoni, M., Incerti, B., Larocca, M. R., Di Rocco, M., Strisciuglio, P., Dianzani, I., Parini, R., Candito, M., Endo, F., Ballabio, A., Andria, G., Sebastio, G., Borsani, G. &lt;strong&gt;Structure of the SLC7A7 gene and mutational analysis of patients affected by lysinuric protein intolerance.&lt;/strong&gt; Am. J. Hum. Genet. 66: 92-99, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10631139/&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;10631139&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/302700&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="10631139">Sperandeo et al. (2000)</a> stated that mutations of the translation-initiator ATG (MET1) are uncommon in inherited diseases. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10631139" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to nucleotide 1A-C in exon 3 of the SLC7A7 gene in the current nomenclature system. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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;LYSINURIC PROTEIN INTOLERANCE</strong>
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SLC7A7, LEU334ARG
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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> rs72552272 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs72552272;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/rs72552272?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=rs72552272" 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=rs72552272" 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=RCV000006587" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000006587" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000006587</a>
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<p>In a 15-year-old Spanish boy with clinical and laboratory findings compatible with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>), <a href="#10" class="mim-tip-reference" title="Torrents, D., Mykkanen, J., Pineda, M., Feliubadalo, L., Estevez, R., de Cid, R., Sanjurjo, P., Zorzano, A., Nunes, V., Huoponen, K., Reinikainen, A., Simell, O., Savontaus, M.-L., Aula, P., Palacin, M. &lt;strong&gt;Identification of SLC7A7, encoding y(+)LAT-1, as the lysinuric protein intolerance gene.&lt;/strong&gt; Nature Genet. 21: 293-296, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080182/&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;10080182&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6809&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="10080182">Torrents et al. (1999)</a> identified compound heterozygosity for 2 mutations in the SLC7A7 gene: a 1287T-G transversion resulting in a leu334-to-arg (L334R) substitution, and a 4-bp deletion (<a href="#0006">603593.0006</a>). The missense mutation abolished y(+)LAT1 amino acid transport activity when coexpressed with 4F2hc in Xenopus laevis oocytes. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080182" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>By functional expression studies, <a href="#3" class="mim-tip-reference" title="Mykkanen, J., Torrents, D., Pineda, M., Camps, M., Yoldi, M. E., Horelli-Kuitunen, N., Huoponen, K., Heinonen, M., Oksanen, J., Simell, O., Savontaus, M.-L., Zorzano, A., Palacin, M., Aula, P. &lt;strong&gt;Functional analysis of novel mutations in y+LAT-1 amino acid transporter gene causing lysinuric protein intolerance (LPI).&lt;/strong&gt; Hum. Molec. Genet. 9: 431-438, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10655553/&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;10655553&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/9.3.431&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="10655553">Mykkanen et al. (2000)</a> found that the L334R mutant protein reached the oocyte plasma membrane when coexpressed with 4F2hc, but showed no transport activity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10655553" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to 1001T-G in exon 8 of the SLC7A7 gene in the current nomenclature system. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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="0006" class="mim-anchor"></a>
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<strong>.0006&nbsp;LYSINURIC PROTEIN INTOLERANCE</strong>
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SLC7A7, 4-BP DEL, 1005CTTT
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs386833794 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs386833794;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=rs386833794" 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=rs386833794" 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=RCV000049759" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000049759" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000049759</a>
</span>
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<p>For discussion of the 4-bp deletion (1005delCTTT) in the SLC7A7 gene that was found in compound heterozygous state in a patient with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>) by <a href="#10" class="mim-tip-reference" title="Torrents, D., Mykkanen, J., Pineda, M., Feliubadalo, L., Estevez, R., de Cid, R., Sanjurjo, P., Zorzano, A., Nunes, V., Huoponen, K., Reinikainen, A., Simell, O., Savontaus, M.-L., Aula, P., Palacin, M. &lt;strong&gt;Identification of SLC7A7, encoding y(+)LAT-1, as the lysinuric protein intolerance gene.&lt;/strong&gt; Nature Genet. 21: 293-296, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10080182/&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;10080182&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/6809&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="10080182">Torrents et al. (1999)</a>, see <a href="#0005">603593.0005</a>. The authors originally cited this mutation as 1291delCTTT. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080182" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to 1005delCTTT in exon 8 of the SLC7A7 gene in the current nomenclature system. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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="0007" class="mim-anchor"></a>
<h4>
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<strong>.0007&nbsp;LYSINURIC PROTEIN INTOLERANCE</strong>
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SLC7A7, GLY54VAL
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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> rs121908677 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs121908677;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/rs121908677?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=rs121908677" 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=rs121908677" 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=RCV000006589" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000006589" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000006589</a>
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<p>In 1 Latvian and 1 Estonian patient with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>), <a href="#3" class="mim-tip-reference" title="Mykkanen, J., Torrents, D., Pineda, M., Camps, M., Yoldi, M. E., Horelli-Kuitunen, N., Huoponen, K., Heinonen, M., Oksanen, J., Simell, O., Savontaus, M.-L., Zorzano, A., Palacin, M., Aula, P. &lt;strong&gt;Functional analysis of novel mutations in y+LAT-1 amino acid transporter gene causing lysinuric protein intolerance (LPI).&lt;/strong&gt; Hum. Molec. Genet. 9: 431-438, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10655553/&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;10655553&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/9.3.431&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="10655553">Mykkanen et al. (2000)</a> identified a homozygous 447G-T transversion in exon 3 of the SLC7A7 gene, resulting in a gly54-to-val (G54V) substitution in a highly conserved region. In vitro functional expression studies showed that the mutant G54V protein reached the oocyte plasma membrane when coexpressed with 4F2hc, but had no transport activity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10655553" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to 161G-T in exon 3 of the SLC7A7 gene in the current nomenclature system. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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="0008" class="mim-anchor"></a>
<h4>
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<strong>.0008&nbsp;LYSINURIC PROTEIN INTOLERANCE</strong>
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</h4>
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SLC7A7, ARG410TER
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</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs121908678 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs121908678;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/rs121908678?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=rs121908678" 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=rs121908678" 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=RCV000006590 OR RCV001293692" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000006590, RCV001293692" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000006590...</a>
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<p>In affected members of 2 unrelated Japanese families with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>), <a href="#4" class="mim-tip-reference" title="Noguchi, A., Shoji, Y., Koizumi, A., Takahashi, T., Shoji, Y., Matsumori, M., Kayo, T., Ohata, T., Wada, Y., Yoshimura, I., Maisawa, S., Konishi, M., Takasago, Y., Takada, G. &lt;strong&gt;SLC7A7 genomic structure and novel variants in three Japanese lysinuric protein intolerance families.&lt;/strong&gt; Hum. Mutat. 15: 367-372, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10737982/&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;10737982&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/(SICI)1098-1004(200004)15:4&lt;367::AID-HUMU9&gt;3.0.CO;2-C&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="10737982">Noguchi et al. (2000)</a> identified a homozygous 1514C-T transition in exon 9 of the SLC7A7 gene, resulting in an arg410-to-ter (R410X) substitution. In addition, 2 children from a third Japanese family were found to be compound heterozygous for R410X and another mutation (<a href="#0009">603593.0009</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10737982" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to 1228C-T in exon 9 of the SLC7A7 gene in the current nomenclature system. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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="0009" class="mim-anchor"></a>
<h4>
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<strong>.0009&nbsp;LYSINURIC PROTEIN INTOLERANCE</strong>
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SLC7A7, IVS4DS, G-A, +1
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&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs386833822 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs386833822;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/rs386833822?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=rs386833822" 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=rs386833822" 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=RCV000049787 OR RCV001547252 OR RCV003415815" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000049787, RCV001547252, RCV003415815" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000049787...</a>
</span>
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<div>
<span class="mim-text-font">
<p>For discussion of the splice site mutation in the SLC7A7 gene that was found in compound heterozygous state in 2 children with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>) by <a href="#4" class="mim-tip-reference" title="Noguchi, A., Shoji, Y., Koizumi, A., Takahashi, T., Shoji, Y., Matsumori, M., Kayo, T., Ohata, T., Wada, Y., Yoshimura, I., Maisawa, S., Konishi, M., Takasago, Y., Takada, G. &lt;strong&gt;SLC7A7 genomic structure and novel variants in three Japanese lysinuric protein intolerance families.&lt;/strong&gt; Hum. Mutat. 15: 367-372, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10737982/&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;10737982&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/(SICI)1098-1004(200004)15:4&lt;367::AID-HUMU9&gt;3.0.CO;2-C&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="10737982">Noguchi et al. (2000)</a>, see <a href="#0008">603593.0008</a>. The authors cited this mutation as 911+1G-A. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10737982" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to 625+1G-A in intron 4 of the SLC7A7 gene in the current nomenclature system and results in the skipping of exon 4. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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="0010" class="mim-anchor"></a>
<h4>
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<strong>.0010&nbsp;LYSINURIC PROTEIN INTOLERANCE</strong>
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</h4>
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<span class="mim-text-font">
<div style="float: left;">
SLC7A7, TRP242TER
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</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs121908679 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs121908679;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/rs121908679?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=rs121908679" 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=rs121908679" 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=RCV000006592 OR RCV001723545 OR RCV002262560" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000006592, RCV001723545, RCV002262560" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000006592...</a>
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<p>In 2 unrelated patients with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>), <a href="#8" class="mim-tip-reference" title="Sperandeo, M. P., Bassi, M. T., Riboni, M., Parenti, G., Buoninconti, A., Manzoni, M., Incerti, B., Larocca, M. R., Di Rocco, M., Strisciuglio, P., Dianzani, I., Parini, R., Candito, M., Endo, F., Ballabio, A., Andria, G., Sebastio, G., Borsani, G. &lt;strong&gt;Structure of the SLC7A7 gene and mutational analysis of patients affected by lysinuric protein intolerance.&lt;/strong&gt; Am. J. Hum. Genet. 66: 92-99, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10631139/&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;10631139&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/302700&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="10631139">Sperandeo et al. (2000)</a> identified a homozygous 967G-A transition in the SLC7A7 gene, resulting in a trp242-to-ter (W242X) substitution. Functional expression analysis has shown that the W242X mutant protein is retained in the Golgi and endoplasmic reticulum, is not expressed at the cell surface, and has no functional activity (<a href="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al., 2008</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=17764084+10631139" 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="#7" class="mim-tip-reference" title="Sperandeo, M. P., Andria, G., Sebastio, G. &lt;strong&gt;Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.&lt;/strong&gt; Hum. Mutat. 29: 14-21, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17764084/&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;17764084&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.20589&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="17764084">Sperandeo et al. (2008)</a> noted that this mutation corresponds to 726G-A in exon 5 of the SLC7A7 gene in the current nomenclature system. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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>.0011&nbsp;LYSINURIC PROTEIN INTOLERANCE</strong>
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SLC7A7, EX6-11, DEL
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<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000006593" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000006593" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000006593</a>
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<p>In a Spanish patient with lysinuric protein intolerance (LPI; <a href="/entry/222700">222700</a>), <a href="#2" class="mim-tip-reference" title="Font-Llitjos, M., Rodriguez-Santiago, B., Espino, M., Sillue, R., Manas, S., Gomez, L., Perez-Jurado, L. A., Palacin, M., Nunes, V. &lt;strong&gt;Novel SLC7A7 large rearrangements in lysinuric protein intolerance patients involving the same AluY repeat.&lt;/strong&gt; Europ. J. Hum. Genet. 17: 71-79, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18716612/&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;18716612&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18716612[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/10.1038/ejhg.2008.145&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="18716612">Font-Llitjos et al. (2009)</a> identified a homozygous 4.6-kb deletion spanning intron 5 through exon 11 of the SLC7A7 gene. The deletion was identified using multiplex ligation probe amplification (MLPA) assay and was found to result from the recombination of Alu repeats in intron 5 and in the 3-prime region of the SLC7A7 gene. The patient had a severe phenotype with mental retardation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18716612" 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="Borsani1999" class="mim-anchor"></a>
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Borsani, G., Bassi, M. T., Sperandeo, M. P., De Grandi, A., Buoninconti, A., Riboni, M., Manzoni, M., Incerti, B., Pepe, A., Andria, G., Ballabio, A., Sebastio, G.
<strong>SLC7A7, encoding a putative permease-related protein, is mutated in patients with lysinuric protein intolerance.</strong>
Nature Genet. 21: 297-301, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10080183/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10080183</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080183" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/6815" target="_blank">Full Text</a>]
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<a id="Font-Llitjos2009" class="mim-anchor"></a>
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Font-Llitjos, M., Rodriguez-Santiago, B., Espino, M., Sillue, R., Manas, S., Gomez, L., Perez-Jurado, L. A., Palacin, M., Nunes, V.
<strong>Novel SLC7A7 large rearrangements in lysinuric protein intolerance patients involving the same AluY repeat.</strong>
Europ. J. Hum. Genet. 17: 71-79, 2009.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18716612/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18716612</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=18716612[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=18716612" 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/ejhg.2008.145" target="_blank">Full Text</a>]
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<a id="Mykkanen2000" class="mim-anchor"></a>
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Mykkanen, J., Torrents, D., Pineda, M., Camps, M., Yoldi, M. E., Horelli-Kuitunen, N., Huoponen, K., Heinonen, M., Oksanen, J., Simell, O., Savontaus, M.-L., Zorzano, A., Palacin, M., Aula, P.
<strong>Functional analysis of novel mutations in y+LAT-1 amino acid transporter gene causing lysinuric protein intolerance (LPI).</strong>
Hum. Molec. Genet. 9: 431-438, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10655553/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10655553</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10655553" 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/9.3.431" target="_blank">Full Text</a>]
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<a id="Noguchi2000" class="mim-anchor"></a>
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Noguchi, A., Shoji, Y., Koizumi, A., Takahashi, T., Shoji, Y., Matsumori, M., Kayo, T., Ohata, T., Wada, Y., Yoshimura, I., Maisawa, S., Konishi, M., Takasago, Y., Takada, G.
<strong>SLC7A7 genomic structure and novel variants in three Japanese lysinuric protein intolerance families.</strong>
Hum. Mutat. 15: 367-372, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10737982/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10737982</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10737982" 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/(SICI)1098-1004(200004)15:4&lt;367::AID-HUMU9&gt;3.0.CO;2-C" target="_blank">Full Text</a>]
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<a id="Puomila2007" class="mim-anchor"></a>
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Puomila, K., Simell, O., Huoponen, K., Mykkanen, J.
<strong>Two alternative promoters regulate the expression of lysinuric protein intolerance gene SLC7A7.</strong>
Molec. Genet. Metab. 90: 298-306, 2007.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/17196863/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">17196863</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17196863" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/j.ymgme.2006.11.007" target="_blank">Full Text</a>]
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<a id="Shoji2002" class="mim-anchor"></a>
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Shoji, Y., Noguchi, A., Shoji, Y., Matsumori, M., Takasago, Y., Takayanagi, M., Yoshida, Y., Ihara, K., Hara, T., Yamaguchi, S., Yoshino, M., Kaji, M., Yamamoto, S., Nakai, A., Koizumi, A., Hokezu, Y., Nagamatsu, K., Mikami, H., Kitajima, I., Takada, G.
<strong>Five novel SLC7A7 variants and y(+)L gene-expression pattern in cultured lymphoblasts from Japanese patients with lysinuric protein intolerance.</strong>
Hum. Mutat. 20: 375-381, 2002.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12402335/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12402335</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12402335" 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.10140" target="_blank">Full Text</a>]
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<a id="Sperandeo2008" class="mim-anchor"></a>
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Sperandeo, M. P., Andria, G., Sebastio, G.
<strong>Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.</strong>
Hum. Mutat. 29: 14-21, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/17764084/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">17764084</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17764084" 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.20589" target="_blank">Full Text</a>]
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<a id="Sperandeo2000" class="mim-anchor"></a>
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Sperandeo, M. P., Bassi, M. T., Riboni, M., Parenti, G., Buoninconti, A., Manzoni, M., Incerti, B., Larocca, M. R., Di Rocco, M., Strisciuglio, P., Dianzani, I., Parini, R., Candito, M., Endo, F., Ballabio, A., Andria, G., Sebastio, G., Borsani, G.
<strong>Structure of the SLC7A7 gene and mutational analysis of patients affected by lysinuric protein intolerance.</strong>
Am. J. Hum. Genet. 66: 92-99, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10631139/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10631139</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10631139" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1086/302700" target="_blank">Full Text</a>]
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<a id="Torrents1998" class="mim-anchor"></a>
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Torrents, D., Estevez, R., Pineda, M., Fernandez, E., Lloberas, J., Shi, Y.-B., Zorzano, A., Palacin, M.
<strong>Identification and characterization of a membrane protein ((+)L amino acid transporter-1) that associates with 4F2hc to encode the amino acid transport activity y(+)L: a candidate gene for lysinuric protein intolerance.</strong>
J. Biol. Chem. 273: 32437-32445, 1998.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9829974/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9829974</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9829974" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1074/jbc.273.49.32437" target="_blank">Full Text</a>]
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<a id="Torrents1999" class="mim-anchor"></a>
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Torrents, D., Mykkanen, J., Pineda, M., Feliubadalo, L., Estevez, R., de Cid, R., Sanjurjo, P., Zorzano, A., Nunes, V., Huoponen, K., Reinikainen, A., Simell, O., Savontaus, M.-L., Aula, P., Palacin, M.
<strong>Identification of SLC7A7, encoding y(+)LAT-1, as the lysinuric protein intolerance gene.</strong>
Nature Genet. 21: 293-296, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10080182/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10080182</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10080182" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/6809" target="_blank">Full Text</a>]
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Cassandra L. Kniffin - updated : 4/2/2009
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Cassandra L. Kniffin - reorganized : 3/17/2008<br>Cassandra L. Kniffin - updated : 3/5/2008<br>Victor A. McKusick - updated : 11/21/2002<br>Victor A. McKusick - updated : 4/19/2000<br>Victor A. McKusick - updated : 3/7/2000<br>Victor A. McKusick - updated : 12/29/1999
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Victor A. McKusick : 2/26/1999
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carol : 09/27/2016
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mcolton : 08/18/2015<br>terry : 4/12/2012<br>wwang : 4/17/2009<br>ckniffin : 4/2/2009<br>carol : 3/17/2008<br>ckniffin : 3/5/2008<br>carol : 8/9/2007<br>terry : 4/21/2005<br>tkritzer : 11/25/2002<br>terry : 11/21/2002<br>mcapotos : 5/17/2000<br>terry : 4/19/2000<br>mcapotos : 4/3/2000<br>mcapotos : 3/21/2000<br>terry : 3/7/2000<br>terry : 2/10/2000<br>mgross : 1/3/2000<br>terry : 12/29/1999<br>psherman : 10/19/1999<br>mgross : 3/10/1999<br>alopez : 3/2/1999<br>alopez : 3/1/1999<br>alopez : 2/26/1999
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<span class="mim-font">
<strong>*</strong> 603593
</span>
</h3>
</div>
<div>
<h3>
<span class="mim-font">
SOLUTE CARRIER FAMILY 7 (CATIONIC AMINO ACID TRANSPORTER, y+ SYSTEM), MEMBER 7; SLC7A7
</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">
y(+)L-TYPE AMINO ACID TRANSPORTER 1<br />
y(+)LAT1
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<p>
<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: SLC7A7</em></strong>
</span>
</p>
</div>
<div>
<p>
<span class="mim-text-font">
<strong>SNOMEDCT:</strong> 303852004; &nbsp;
</span>
</p>
</div>
<div>
<br />
</div>
<div>
<p>
<span class="mim-text-font">
<strong>
<em>
Cytogenetic location: 14q11.2
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : 14:22,773,222-22,819,791 </span>
</em>
</strong>
<span class="small">(from NCBI)</span>
</span>
</p>
</div>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Gene-Phenotype Relationships</strong>
</span>
</h4>
<div>
<table class="table table-bordered table-condensed small mim-table-padding">
<thead>
<tr class="active">
<th>
Location
</th>
<th>
Phenotype
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="1">
<span class="mim-font">
14q11.2
</span>
</td>
<td>
<span class="mim-font">
Lysinuric protein intolerance
</span>
</td>
<td>
<span class="mim-font">
222700
</span>
</td>
<td>
<span class="mim-font">
Autosomal recessive
</span>
</td>
<td>
<span class="mim-font">
3
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>TEXT</strong>
</span>
</h4>
<div>
<h4>
<span class="mim-font">
<strong>Description</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>The SLC7A7 gene encodes the light subunit of a cationic amino acid transporter. Together with the heavy chain, 4F2hc (SLC3A2; 158070), the SLC7A7 protein forms a functional heterodimeric transporter on the basolateral cell membrane of epithelial cells that transfers lysine, arginine, and ornithine from the cell to the extracellular space (Torrents et al., 1998; Puomila et al., 2007). </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>Torrents et al. (1998) identified a human cDNA, designated SLC7A7, corresponding to the y(+)L-type amino acid transporter 1 subunit. The SLC7A7 gene encodes a deduced 511-residue protein with a molecular mass of 56 kD that contains 12 transmembrane domains. The protein sequence shows 81% homology to the opossum protein. Northern blot analysis identified a 2.4-kb mRNA transcript expressed in kidney, peripheral blood leukocytes, lung, placenta, spleen, and small intestine. SLC7A7 associated with SLC3A2 to form a functional 135-kD heterodimer linked by a disulfide bridge involving cysteine 109 of SLC3A2. Human SLC7A7 is mainly expressed at the basolateral membrane of epithelial cells in the renal tubules and small intestine. </p><p>Noguchi et al. (2000) identified an alternatively spliced isoform of SLC7A7 that lacked exon 2, which is a noncoding exon. </p><p>Puomila et al. (2007) characterized 2 functional promoters of the SLC7A7 gene: an 'upstream' promoter in front of exon 1 that appeared to be active in brain, and a 'downstream' TATA-box-containing promoter in front of exon 2 that was active in kidney, small intestine, and brain. Puomila et al. (2007) suggested that these promoters may play a role in tissue-specific regulation of SLC7A7 gene expression. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Gene Structure</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>The SLC7A7 gene contains 11 exons and spans 47 kb of genomic DNA in the antisense strand. The codon for translation initiation is in exon 3 (Noguchi et al., 2000; Sperandeo et al., 2008). </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Torrents et al. (1998) mapped the SLC7A7 gene to chromosome 14q11.2. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>In 31 Finnish patients with lysinuric protein intolerance (LPI; 222700), Torrents et al. (1999) identified homozygosity for a founder mutation in the SLC7A7 gene (603593.0001). Borsani et al. (1999) defined the Finnish mutation as a splice acceptor change resulting in a frameshift and premature translation termination. </p><p>Torrents et al. (1999) also reported a Spanish LPI patient who was compound heterozygous for 2 mutations (603593.0005; 603593.0006) in the SLC7A7 gene. </p><p>In 5 Italian patients with LPI, Borsani et al. (1999) found either an insertion or a deletion in the coding sequence of the SLC7A7 gene (603593.0002; 603593.0003). </p><p>Sperandeo et al. (2000) identified mutations in the SLC7A7 gene (see, e.g., 603593.0004) in Italian, Tunisian, and Japanese LPI patients. All mutant alleles in 11 unrelated families were characterized, and 8 novel mutations were detected. </p><p>Mykkanen et al. (2000) performed mutation screening of 20 non-Finnish LPI patients and found 10 novel mutations: 4 deletions, 2 missense mutations, 2 nonsense mutations, a splice site mutation, and a tandem duplication. Functional studies of 5 LPI mutations showed that all mutant proteins failed to induce amino acid transport activity when expressed with 4F2hc in Xenopus oocytes. </p><p>In affected members of 2 Japanese LPI families, Noguchi et al. (2000) identified a homozygous mutation in the SLC7A7 gene (R410X; 603593.0008). </p><p>Shoji et al. (2002) identified 5 novel SLC7A7 variants in Japanese patients with LPI by PCR amplification and direct DNA sequencing. </p><p>Sperandeo et al. (2008) identified 9 novel mutations in the SLC7A7 gene, and noted that a total of 43 different mutations had been identified in over 100 patients with LPI. Mutations were spread throughout the gene with no apparent genotype/phenotype correlations. </p><p>Font-Llitjos et al. (2009) identified 11 mutations in the SLC7A7, including 7 novel mutations, in 11 patients from 9 unrelated families with LPI. Two of the mutations were large deletions involving exons 4 to 11 and exons 6 through 11 (603593.0011), respectively. These deletions were identified using multiplex ligation probe amplification (MLPA) assay and were found to result from the recombination of Alu repeats at introns 3 and 5, respectively, and the same AluY sequence in the 3-prime region of the SLC7A7 gene. Patients with the large deletions had the most severe phenotypes, likely resulting from dramatic loss of transport function. </p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>11 Selected Examples):</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, IVS6AS, A-T, -2
<br />
SNP: rs146582474,
gnomAD: rs146582474,
ClinVar: RCV001007644
</span>
</div>
<div>
<span class="mim-text-font">
<p>In Finnish patients with lysinuric protein intolerance (LPI; 222700), Torrents et al. (1999) identified a homozygous A-to-T transversion in the acceptor splice site of intron 6 of the SLC7A7 gene. The mutation resulted in a 10-bp deletion beginning at nucleotide 1181, a frameshift, and premature protein truncation. </p><p>The same mutation was identified by Borsani et al. (1999) in 5 Finnish patients; they referred to the mutation as 1136-2A-T and found that it caused a 10-bp deletion due to the use of a second acceptor sequence, resulting in frameshift and premature termination 26 bp downstream. </p><p>Mykkanen et al. (2000) demonstrated that the Finnish founder mutant protein had no residual activity and remained intracellular. </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to nucleotide 895-2A-T in the current nomenclature system. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0002 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, 455-BP DEL, NT197
<br />
ClinVar: RCV000006584
</span>
</div>
<div>
<span class="mim-text-font">
<p>In an Italian patient with lysinuric protein intolerance (LPI; 222700), born to consanguineous parents, Borsani et al. (1999) found homozygosity for a 543-bp deletion beginning at nucleotide 197 in the SLC7A7 gene. </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to a 455-bp deletion spanning nucleotides 45 to 499 in exon 3 in the current nomenclature system. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0003 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, 4-BP INS, 1384ATCA
<br />
SNP: rs386833805,
gnomAD: rs386833805,
ClinVar: RCV000049770
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 4 Italian families, perhaps belonging to a single large pedigree, Borsani et al. (1999) found that members with lysinuric protein intolerance (LPI; 222700) were homozygous for a 4-bp insertion (1625insATCA) in exon 9 of the SLC7A7 gene, resulting in a frameshift at codon 462 and predicted translation termination 13 bp downstream. </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to 1384insATCA in exon 10 of the SLC7A7 gene in the current nomenclature system. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0004 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, MET1LEU
<br />
SNP: rs121908676,
ClinVar: RCV000006586
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 brothers with lysinuric protein intolerance (LPI; 222700), Sperandeo et al. (2000) identified a homozygous 242A-C transversion in the SLC7A7 gene, resulting in a met1-to-leu (M1L) substitution. Sperandeo et al. (2000) stated that mutations of the translation-initiator ATG (MET1) are uncommon in inherited diseases. </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to nucleotide 1A-C in exon 3 of the SLC7A7 gene in the current nomenclature system. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0005 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, LEU334ARG
<br />
SNP: rs72552272,
gnomAD: rs72552272,
ClinVar: RCV000006587
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a 15-year-old Spanish boy with clinical and laboratory findings compatible with lysinuric protein intolerance (LPI; 222700), Torrents et al. (1999) identified compound heterozygosity for 2 mutations in the SLC7A7 gene: a 1287T-G transversion resulting in a leu334-to-arg (L334R) substitution, and a 4-bp deletion (603593.0006). The missense mutation abolished y(+)LAT1 amino acid transport activity when coexpressed with 4F2hc in Xenopus laevis oocytes. </p><p>By functional expression studies, Mykkanen et al. (2000) found that the L334R mutant protein reached the oocyte plasma membrane when coexpressed with 4F2hc, but showed no transport activity. </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to 1001T-G in exon 8 of the SLC7A7 gene in the current nomenclature system. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0006 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, 4-BP DEL, 1005CTTT
<br />
SNP: rs386833794,
ClinVar: RCV000049759
</span>
</div>
<div>
<span class="mim-text-font">
<p>For discussion of the 4-bp deletion (1005delCTTT) in the SLC7A7 gene that was found in compound heterozygous state in a patient with lysinuric protein intolerance (LPI; 222700) by Torrents et al. (1999), see 603593.0005. The authors originally cited this mutation as 1291delCTTT. </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to 1005delCTTT in exon 8 of the SLC7A7 gene in the current nomenclature system. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0007 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, GLY54VAL
<br />
SNP: rs121908677,
gnomAD: rs121908677,
ClinVar: RCV000006589
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 1 Latvian and 1 Estonian patient with lysinuric protein intolerance (LPI; 222700), Mykkanen et al. (2000) identified a homozygous 447G-T transversion in exon 3 of the SLC7A7 gene, resulting in a gly54-to-val (G54V) substitution in a highly conserved region. In vitro functional expression studies showed that the mutant G54V protein reached the oocyte plasma membrane when coexpressed with 4F2hc, but had no transport activity. </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to 161G-T in exon 3 of the SLC7A7 gene in the current nomenclature system. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0008 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, ARG410TER
<br />
SNP: rs121908678,
gnomAD: rs121908678,
ClinVar: RCV000006590, RCV001293692
</span>
</div>
<div>
<span class="mim-text-font">
<p>In affected members of 2 unrelated Japanese families with lysinuric protein intolerance (LPI; 222700), Noguchi et al. (2000) identified a homozygous 1514C-T transition in exon 9 of the SLC7A7 gene, resulting in an arg410-to-ter (R410X) substitution. In addition, 2 children from a third Japanese family were found to be compound heterozygous for R410X and another mutation (603593.0009). </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to 1228C-T in exon 9 of the SLC7A7 gene in the current nomenclature system. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0009 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, IVS4DS, G-A, +1
<br />
SNP: rs386833822,
gnomAD: rs386833822,
ClinVar: RCV000049787, RCV001547252, RCV003415815
</span>
</div>
<div>
<span class="mim-text-font">
<p>For discussion of the splice site mutation in the SLC7A7 gene that was found in compound heterozygous state in 2 children with lysinuric protein intolerance (LPI; 222700) by Noguchi et al. (2000), see 603593.0008. The authors cited this mutation as 911+1G-A. </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to 625+1G-A in intron 4 of the SLC7A7 gene in the current nomenclature system and results in the skipping of exon 4. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0010 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, TRP242TER
<br />
SNP: rs121908679,
gnomAD: rs121908679,
ClinVar: RCV000006592, RCV001723545, RCV002262560
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 unrelated patients with lysinuric protein intolerance (LPI; 222700), Sperandeo et al. (2000) identified a homozygous 967G-A transition in the SLC7A7 gene, resulting in a trp242-to-ter (W242X) substitution. Functional expression analysis has shown that the W242X mutant protein is retained in the Golgi and endoplasmic reticulum, is not expressed at the cell surface, and has no functional activity (Sperandeo et al., 2008). </p><p>Sperandeo et al. (2008) noted that this mutation corresponds to 726G-A in exon 5 of the SLC7A7 gene in the current nomenclature system. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0011 &nbsp; LYSINURIC PROTEIN INTOLERANCE</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SLC7A7, EX6-11, DEL
<br />
ClinVar: RCV000006593
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a Spanish patient with lysinuric protein intolerance (LPI; 222700), Font-Llitjos et al. (2009) identified a homozygous 4.6-kb deletion spanning intron 5 through exon 11 of the SLC7A7 gene. The deletion was identified using multiplex ligation probe amplification (MLPA) assay and was found to result from the recombination of Alu repeats in intron 5 and in the 3-prime region of the SLC7A7 gene. The patient had a severe phenotype with mental retardation. </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">
Borsani, G., Bassi, M. T., Sperandeo, M. P., De Grandi, A., Buoninconti, A., Riboni, M., Manzoni, M., Incerti, B., Pepe, A., Andria, G., Ballabio, A., Sebastio, G.
<strong>SLC7A7, encoding a putative permease-related protein, is mutated in patients with lysinuric protein intolerance.</strong>
Nature Genet. 21: 297-301, 1999.
[PubMed: 10080183]
[Full Text: https://doi.org/10.1038/6815]
</p>
</li>
<li>
<p class="mim-text-font">
Font-Llitjos, M., Rodriguez-Santiago, B., Espino, M., Sillue, R., Manas, S., Gomez, L., Perez-Jurado, L. A., Palacin, M., Nunes, V.
<strong>Novel SLC7A7 large rearrangements in lysinuric protein intolerance patients involving the same AluY repeat.</strong>
Europ. J. Hum. Genet. 17: 71-79, 2009.
[PubMed: 18716612]
[Full Text: https://doi.org/10.1038/ejhg.2008.145]
</p>
</li>
<li>
<p class="mim-text-font">
Mykkanen, J., Torrents, D., Pineda, M., Camps, M., Yoldi, M. E., Horelli-Kuitunen, N., Huoponen, K., Heinonen, M., Oksanen, J., Simell, O., Savontaus, M.-L., Zorzano, A., Palacin, M., Aula, P.
<strong>Functional analysis of novel mutations in y+LAT-1 amino acid transporter gene causing lysinuric protein intolerance (LPI).</strong>
Hum. Molec. Genet. 9: 431-438, 2000.
[PubMed: 10655553]
[Full Text: https://doi.org/10.1093/hmg/9.3.431]
</p>
</li>
<li>
<p class="mim-text-font">
Noguchi, A., Shoji, Y., Koizumi, A., Takahashi, T., Shoji, Y., Matsumori, M., Kayo, T., Ohata, T., Wada, Y., Yoshimura, I., Maisawa, S., Konishi, M., Takasago, Y., Takada, G.
<strong>SLC7A7 genomic structure and novel variants in three Japanese lysinuric protein intolerance families.</strong>
Hum. Mutat. 15: 367-372, 2000.
[PubMed: 10737982]
[Full Text: https://doi.org/10.1002/(SICI)1098-1004(200004)15:4&lt;367::AID-HUMU9&gt;3.0.CO;2-C]
</p>
</li>
<li>
<p class="mim-text-font">
Puomila, K., Simell, O., Huoponen, K., Mykkanen, J.
<strong>Two alternative promoters regulate the expression of lysinuric protein intolerance gene SLC7A7.</strong>
Molec. Genet. Metab. 90: 298-306, 2007.
[PubMed: 17196863]
[Full Text: https://doi.org/10.1016/j.ymgme.2006.11.007]
</p>
</li>
<li>
<p class="mim-text-font">
Shoji, Y., Noguchi, A., Shoji, Y., Matsumori, M., Takasago, Y., Takayanagi, M., Yoshida, Y., Ihara, K., Hara, T., Yamaguchi, S., Yoshino, M., Kaji, M., Yamamoto, S., Nakai, A., Koizumi, A., Hokezu, Y., Nagamatsu, K., Mikami, H., Kitajima, I., Takada, G.
<strong>Five novel SLC7A7 variants and y(+)L gene-expression pattern in cultured lymphoblasts from Japanese patients with lysinuric protein intolerance.</strong>
Hum. Mutat. 20: 375-381, 2002.
[PubMed: 12402335]
[Full Text: https://doi.org/10.1002/humu.10140]
</p>
</li>
<li>
<p class="mim-text-font">
Sperandeo, M. P., Andria, G., Sebastio, G.
<strong>Lysinuric protein intolerance: update and extended mutation analysis of the SLC7A7 gene.</strong>
Hum. Mutat. 29: 14-21, 2008.
[PubMed: 17764084]
[Full Text: https://doi.org/10.1002/humu.20589]
</p>
</li>
<li>
<p class="mim-text-font">
Sperandeo, M. P., Bassi, M. T., Riboni, M., Parenti, G., Buoninconti, A., Manzoni, M., Incerti, B., Larocca, M. R., Di Rocco, M., Strisciuglio, P., Dianzani, I., Parini, R., Candito, M., Endo, F., Ballabio, A., Andria, G., Sebastio, G., Borsani, G.
<strong>Structure of the SLC7A7 gene and mutational analysis of patients affected by lysinuric protein intolerance.</strong>
Am. J. Hum. Genet. 66: 92-99, 2000.
[PubMed: 10631139]
[Full Text: https://doi.org/10.1086/302700]
</p>
</li>
<li>
<p class="mim-text-font">
Torrents, D., Estevez, R., Pineda, M., Fernandez, E., Lloberas, J., Shi, Y.-B., Zorzano, A., Palacin, M.
<strong>Identification and characterization of a membrane protein ((+)L amino acid transporter-1) that associates with 4F2hc to encode the amino acid transport activity y(+)L: a candidate gene for lysinuric protein intolerance.</strong>
J. Biol. Chem. 273: 32437-32445, 1998.
[PubMed: 9829974]
[Full Text: https://doi.org/10.1074/jbc.273.49.32437]
</p>
</li>
<li>
<p class="mim-text-font">
Torrents, D., Mykkanen, J., Pineda, M., Feliubadalo, L., Estevez, R., de Cid, R., Sanjurjo, P., Zorzano, A., Nunes, V., Huoponen, K., Reinikainen, A., Simell, O., Savontaus, M.-L., Aula, P., Palacin, M.
<strong>Identification of SLC7A7, encoding y(+)LAT-1, as the lysinuric protein intolerance gene.</strong>
Nature Genet. 21: 293-296, 1999.
[PubMed: 10080182]
[Full Text: https://doi.org/10.1038/6809]
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