nih-gov/www.ncbi.nlm.nih.gov/omim/610308

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<title>
Entry
- *610308 - BETA-3-GLUCOSYLTRANSFERASE; B3GLCT
- OMIM
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<span class="h4">*610308</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="#geneFunction">Gene Function</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#allelicVariants"><strong>Allelic Variants</strong></a>
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<a href="#mimProteinLinksFold" id="mimProteinLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<span id="mimProteinLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9658;</span> Protein
</a>
</span>
</span>
</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=12513&isoform_id=12513_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/B3GLCT" 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/34333916,46090781,46250459,116243011,119628888,154689817,158255982,578824755,767977310,767977315,2217293624,2217293627,2462536248,2462536250,2462536252,2462536254,2462536256" 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/Q6Y288" 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=145173" 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=ENSG00000187676;t=ENST00000343307" 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=B3GLCT" 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=B3GLCT" 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+145173" 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/B3GLCT" 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:145173" 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/145173" 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=chr13&hgg_gene=ENST00000343307.5&hgg_start=31199975&hgg_end=31332276&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://medlineplus.gov/genetics/gene/b3glct" 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=610308[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=610308[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/ENSG00000187676" 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=B3GLCT" 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=B3GLCT" 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=B3GLCT" class="mim-tip-hint" title="Human Gene Mutation Database; published mutations causing or associated with human inherited disease; disease-associated/functional polymorphisms." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGMD', 'domain': 'hgmd.cf.ac.uk'})">HGMD</a></div>
<div><a href="http://www.LOVD.nl/B3GALTL" class="mim-tip-hint" title="A gene-specific database of variation." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Locus Specific DB', 'domain': 'locus-specific-db.org'})">Locus Specific DBs</a></div>
<div><a href="https://evs.gs.washington.edu/EVS/PopStatsServlet?searchBy=Gene+Hugo&target=B3GLCT&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/PA144596515" 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:20207" 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/FBgn0031765.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:2685903" 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/B3GLCT#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:2685903" 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/145173/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=145173" 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=WBGene00022576;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-091204-128" 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:145173" 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=B3GLCT&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> 449817000<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>
610308
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
BETA-3-GLUCOSYLTRANSFERASE; B3GLCT
</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">
UDP-GAL:BETA-GlcNAc BETA-1,3-GALACTOSYLTRANSFERASE-LIKE; B3GALTL<br />
BETA-3-GLYCOSYLTRANSFERASE-LIKE; B3GTL<br />
BETA-1,3-GLUCOSYLTRANSFERASE
</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=B3GLCT" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">B3GLCT</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/13/77?start=-3&limit=10&highlight=77">13q12.3</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chr13:31199975-31332276&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'})">13:31,199,975-31,332,276</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/13/77?start=-3&limit=10&highlight=77">
13q12.3
</a>
</span>
</td>
<td>
<span class="mim-font">
Peters-plus syndrome
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/261540"> 261540 </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/610308" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/610308" 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>B3GLCT is a beta-1,3-glucosyltransferase involved in the synthesis of the unusual O-linked disaccharide glucosyl-beta-1,3-fucose-O- found on the thrombospondin (see THBS1; <a href="/entry/188060">188060</a>) type-1 repeats (TSRs) of many biologically important proteins. Biosynthesis of glucosyl-beta-1,3-fucose-O- is initiated by protein O-fucosyltransferase-2 (POFUT2; <a href="/entry/610249">610249</a>), which attaches the fucosyl residue to a serine or threonine within the TSR. B3GLCT subsequently transfers the glucose onto TSR-fucose (<a href="#3" class="mim-tip-reference" title="Hess, D., Keusch, J. J., Oberstein, S. A. L., Hennekam, R. C. M., Hofsteenge, J. &lt;strong&gt;Peters Plus syndrome is a new congenital disorder of glycosylation and involves defective O-glycosylation of thrombospondin type 1 repeats.&lt;/strong&gt; J. Biol. Chem. 283: 7354-7360, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18199743/&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;18199743&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.M710251200&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="18199743">Hess et al., 2008</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18199743" 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="cloning" class="mim-anchor"></a>
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<strong>Cloning and Expression</strong>
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<p>By EST database analysis and PCR of heart, brain, and kidney cDNA libraries, <a href="#2" class="mim-tip-reference" title="Heinonen, T. Y. K., Pasternack, L., Lindfors, K., Breton, C., Gastinel, L. N., Maki, M., Kainulainen, H. &lt;strong&gt;A novel human glycosyltransferase: primary structure and characterization of the gene and transcripts.&lt;/strong&gt; Biochem. Biophys. Res. Commun. 309: 166-174, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12943678/&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;12943678&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0006-291x(03)01540-7&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="12943678">Heinonen et al. (2003)</a> cloned B3GTL. The deduced 498-amino acid protein is a type II membrane protein with a 4-residue N-terminal cytoplasmic domain, a transmembrane domain, and a large C-terminal portion containing a stem region and a catalytic domain. The catalytic domains contains a triple-aspartate (DDD) motif at its core, a conserved pattern of cysteines, a C-terminal KDEL-like motif, and other residues and motifs conserved in beta-3-glycosyltransferases. <a href="#2" class="mim-tip-reference" title="Heinonen, T. Y. K., Pasternack, L., Lindfors, K., Breton, C., Gastinel, L. N., Maki, M., Kainulainen, H. &lt;strong&gt;A novel human glycosyltransferase: primary structure and characterization of the gene and transcripts.&lt;/strong&gt; Biochem. Biophys. Res. Commun. 309: 166-174, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12943678/&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;12943678&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0006-291x(03)01540-7&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="12943678">Heinonen et al. (2003)</a> identified B3GTL cDNAs with 3 types of 3-prime UTRs resulting from the use of different cleavage and polyadenylation sites. Northern blot analysis detected variable expression of 4.2- and 3.4-kb transcripts in all tissues examined. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12943678" 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="Sato, T., Sato, M., Kiyohara, K., Sogabe, M., Shikanai, T., Kikuchi, N., Togayachi, A., Ishida, H., Ito, H., Kameyama, A., Gotoh, M., Narimatsu, H. &lt;strong&gt;Molecular cloning and characterization of a novel human beta-1,3-glucosyltransferase, which is localized at the endoplasmic reticulum and glucosylates O-linked fucosylglycan on thrombospondin type 1 repeat domain.&lt;/strong&gt; Glycobiology 16: 1194-1206, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16899492/&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;16899492&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/glycob/cwl035&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="16899492">Sato et al. (2006)</a> cloned human and mouse B3GLCT, and they also identified B3GLCT orthologs in fly and nematode databases. Like human B3GLCT, the 489-amino acid mouse protein has 3 B3GT domains and a C-terminal KDEL-like sequence (REEL). Quantitative real-time PCR of human tissues revealed ubiquitous B3GLCT expression, with highest levels in testis and uterus. Immunohistochemical and immunoprecipitation analysis of transfected COS-1 cells showed that human B3GLCT localized to the endoplasmic reticulum and was secreted into the culture medium. The C-terminal REEL sequence was required for retention in the ER. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16899492" 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><a href="#2" class="mim-tip-reference" title="Heinonen, T. Y. K., Pasternack, L., Lindfors, K., Breton, C., Gastinel, L. N., Maki, M., Kainulainen, H. &lt;strong&gt;A novel human glycosyltransferase: primary structure and characterization of the gene and transcripts.&lt;/strong&gt; Biochem. Biophys. Res. Commun. 309: 166-174, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12943678/&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;12943678&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0006-291x(03)01540-7&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="12943678">Heinonen et al. (2003)</a> determined that the B3GALTL gene contains 15 coding exons and spans about 132 kb. The sequence in the vicinity of a transcriptional initiator element contains no canonical TATA or CAAT boxes, but it is unusually GC rich and has several SP1 (<a href="/entry/189906">189906</a>)-binding sites. B3GALTL has multiple transcription start sites, and the proximal promoter has binding sites for several differentiation-specific factors that regulate expression in blood, cardiac, and epithelial cells. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12943678" 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="mapping" class="mim-anchor"></a>
<h4 href="#mimMappingFold" id="mimMappingToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Mapping</strong>
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<p>By genomic sequence analysis, <a href="#2" class="mim-tip-reference" title="Heinonen, T. Y. K., Pasternack, L., Lindfors, K., Breton, C., Gastinel, L. N., Maki, M., Kainulainen, H. &lt;strong&gt;A novel human glycosyltransferase: primary structure and characterization of the gene and transcripts.&lt;/strong&gt; Biochem. Biophys. Res. Commun. 309: 166-174, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12943678/&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;12943678&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0006-291x(03)01540-7&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="12943678">Heinonen et al. (2003)</a> mapped the B3GALTL gene to chromosome 13q12.3. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12943678" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="geneFunction" class="mim-anchor"></a>
<h4 href="#mimGeneFunctionFold" id="mimGeneFunctionToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Gene Function</strong>
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<p><a href="#2" class="mim-tip-reference" title="Heinonen, T. Y. K., Pasternack, L., Lindfors, K., Breton, C., Gastinel, L. N., Maki, M., Kainulainen, H. &lt;strong&gt;A novel human glycosyltransferase: primary structure and characterization of the gene and transcripts.&lt;/strong&gt; Biochem. Biophys. Res. Commun. 309: 166-174, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12943678/&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;12943678&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0006-291x(03)01540-7&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="12943678">Heinonen et al. (2003)</a> found that human intestinal epithelial cells increased expression of B3GTL 3.1-fold following treatment with TGF-beta (TGFB1; <a href="/entry/190180">190180</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12943678" 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>Using a variety of radiolabeled uridine diphosphate (UDP) donors and monosaccharide acceptors, <a href="#7" class="mim-tip-reference" title="Sato, T., Sato, M., Kiyohara, K., Sogabe, M., Shikanai, T., Kikuchi, N., Togayachi, A., Ishida, H., Ito, H., Kameyama, A., Gotoh, M., Narimatsu, H. &lt;strong&gt;Molecular cloning and characterization of a novel human beta-1,3-glucosyltransferase, which is localized at the endoplasmic reticulum and glucosylates O-linked fucosylglycan on thrombospondin type 1 repeat domain.&lt;/strong&gt; Glycobiology 16: 1194-1206, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16899492/&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;16899492&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/glycob/cwl035&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="16899492">Sato et al. (2006)</a> found that recombinant human B3GLCT exhibited glucosyltransferase activity only when UDP-glucose was used as the donor substrate and fucose-alpha-para-nitrophenyl was used as the acceptor substrate. B3GLCT showed glucosyltransferase activity toward H-antigen type 2 and Le(a), but not toward H-antigen type 1 and Le(x). It also showed glucosyltransferase activity toward a fucosylated TSR domain, but not a fucosylated EGF domain (see <a href="/entry/131530">131530</a>). Mouse B3glct exhibited the same enzymatic activity as human B3GLCT. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16899492" 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="Kozma, K., Keusch, J. J., Hegemann, B., Luther, K. B., Klein, D., Hess, D., Haltiwanger, R. S., Hofsteenge, J. &lt;strong&gt;Identification and characterization of a beta-1,3-glucosyltransferase that synthesizes the Glc-beta-1,3-Fuc disaccharide on thrombospondin type 1 repeats.&lt;/strong&gt; J. Biol. Chem. 281: 36742-36751, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17032646/&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;17032646&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.M605912200&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="17032646">Kozma et al. (2006)</a> showed that human B3GLCT transferred glucose to recombinant fucosylated TSR domain-4 (TSR4) amplified from rat F-spondin (SPON1; <a href="/entry/604989">604989</a>). B3GLCT attached the glucose residue in a beta-1,3-linkage to the fucosyl residue of the fucosylated threonine in TSR4-fucose, and it strongly preferred UDP-glucose as the sugar donor. Mutation of the DDD motif within the putative catalytic domain of B3GLCT abolished its enzymatic activity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17032646" 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="Vasudevan, D., Takeuchi, H., Johar, S. S., Majerus, E., Haltiwanger, R. S. &lt;strong&gt;Peters plus syndrome mutations disrupt a noncanonical ER quality-control mechanism.&lt;/strong&gt; Curr. Biol. 25: 286-295, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25544610/&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;25544610&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=25544610[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/10.1016/j.cub.2014.11.049&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="25544610">Vasudevan et al. (2015)</a> showed that POFUT2-dependent addition of fucosyl groups sequentially stabilized TSRs in model substrates containing several tandem TSRs. Fucosylation of each TSR occurred cotranslationally in the ER, possibly in an N- to C-terminal manner. Addition of glucose by B3GLCT was predicted to further stabilize the folded structure before synthesis of the next TSR, preventing formation of inter-TSR disulfide bonds. Knockdown of POFUT2 in HEK293 cells via small interfering RNA severely impacted secretion of all TSR-containing proteins examined, whereas knockdown of B3GLCT had a more narrow effect, suggesting that B3GLCT stabilizes a subset of POGUT2 targets. <a href="#8" class="mim-tip-reference" title="Vasudevan, D., Takeuchi, H., Johar, S. S., Majerus, E., Haltiwanger, R. S. &lt;strong&gt;Peters plus syndrome mutations disrupt a noncanonical ER quality-control mechanism.&lt;/strong&gt; Curr. Biol. 25: 286-295, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25544610/&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;25544610&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=25544610[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/10.1016/j.cub.2014.11.049&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="25544610">Vasudevan et al. (2015)</a> concluded that the POFUT2-B3GLCT machinery recognizes and stabilizes folded TSRs, allowing hydrophobic patches to be buried and cysteines to form disulfide bonds in 1 TSR prior to the emergence of the next TSR. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25544610" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="molecularGenetics" class="mim-anchor"></a>
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<strong>Molecular Genetics</strong>
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<p>Peters-plus syndrome (PTRPLS; <a href="/entry/261540">261540</a>) is an autosomal recessive disorder characterized by a variety of anterior eye-chamber defects, of which the Peters anomaly occurs most frequently. Other major symptoms are a disproportionate short stature, developmental delay, characteristic craniofacial features, and cleft lip and/or palate. To detect possible microrearrangements affecting the disease locus, <a href="#5" class="mim-tip-reference" title="Lesnik Oberstein, S. A. J., Kriek, M., White, S. J., Kalf, M. E., Szuhai, K., den Dunnen, J. T., Breuning, M. H., Hennekam, R. C. M. &lt;strong&gt;Peters plus syndrome is caused by mutations in B3GALTL, a putative glycosyltransferase.&lt;/strong&gt; Am. J. Hum. Genet. 79: 562-566, 2006. Note: Erratum: Am. J. Hum. Genet. 79: 985 only, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16909395/&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;16909395&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=16909395[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/507567&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="16909395">Lesnik Oberstein et al. (2006)</a> performed genomewide 1-Mb resolution array-based comparative genomic hybridization on genomic DNA of 2 brothers and 4 isolated patients who all carried the clinical diagnosis of Peters-plus syndrome. In both brothers, 2 adjacent BAC clones were found to be present in a single copy, representing an interstitial deletion of approximately 1.5 Mb on 13q12.3-q13.1. The B3GALTL gene, located in the region of deletion, was found to carry biallelic (homozygous or compound heterozygous) truncating mutations in all 20 tested patients, showing that Peters-plus syndrome is a monogenic, primarily single-mutation disorder. The 2 brothers carried on their nondeleted chromosome a point mutation (660+1G-A; <a href="#0001">610308.0001</a>) in the donor splice site of exon 8 of B3GALTL. The same mutation was present in single copy in the father, the deletion having been inherited from the mother. The homozygous 660+1G-A mutation was found in 16 of 18 patients studied. In 2 Dutch sibs, compound heterozygosity was found for the 660+1G-A mutation and a different mutation on the paternal allele in intron 5 of B3GALTL (347+5G-A; <a href="#0002">610308.0002</a>). SNP studies suggested that the mutation, observed not only in Dutch patients but also in Italian, Turkish, and English patients, represented a recurrent mutation, although some of the Dutch patients may have had a common ancestor. The mutation occurs at a site of a potentially methylated CpG dinucleotide, which could explain its recurrence. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16909395" 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="Reis, L. M., Tyler, R. C., Abdul-Rahman, O., Trapane, P., Wallerstein, R., Broome, D., Hoffman, J., Khan, A., Paradiso, C., Ron, N., Bergner, A., Semina, E. V. &lt;strong&gt;Mutation analysis of B3GALTL in Peters plus syndrome.&lt;/strong&gt; Am. J. Med. Genet. 146A: 2603-2610, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18798333/&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;18798333&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18798333[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/10.1002/ajmg.a.32498&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="18798333">Reis et al. (2008)</a> examined B3GALTL exons and flanking introns in 4 patients with typical Peters-plus syndrome and 4 patients with only some characteristic features of this syndrome. They identified mutations in the B3GALTL gene in all 4 patients with typical Peters-plus syndrome but in none of the 4 patients with some phenotypic overlap. The previously identified 660+1G-A mutation was identified in homozygous state in 2 of the 4 patients and in compound heterozygous state with novel mutations (459+1G-A, <a href="#0003">610308.0003</a> and 230insT, <a href="#0004">610308.0004</a>) in the other 2. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18798333" 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 2 patients with Peters-plus syndrome, <a href="#1" class="mim-tip-reference" title="Dassie-Ajdid, J., Causse, A., Poidvin, A., Granier, M., Kaplan, J., Burglen, L., Doummar, D., Teisseire, P., Vigouroux, A., Malecaze, F., Calvas, P., Chassaing, N. &lt;strong&gt;Novel B3GALTL mutation in Peters-plus syndrome. (Letter)&lt;/strong&gt; Clin. Genet. 76: 490-492, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19796186/&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;19796186&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1399-0004.2009.01253.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="19796186">Dassie-Ajdid et al. (2009)</a> identified homozygosity for the 459+1G-A mutation in one and compound heterozygosity for the recurrent 660+1G-A mutation and a missense mutation (<a href="#0005">610308.0005</a>) in the other. Screening of the B3GALTL gene in 2 additional patients who had Peters anomaly (<a href="/entry/604229">604229</a>) and psychomotor delay but who did not meet other Peters-plus syndrome criteria did not reveal any mutations. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19796186" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><strong><em>Associations Pending Confirmation</em></strong></p><p>
For discussion of a possible association between variation near the B3GALTL gene and age-related macular degeneration, see ARMD1 (<a href="/entry/603075">603075</a>).</p>
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<strong>ALLELIC VARIANTS (<a href="/help/faq#1_4"></strong>
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<strong>5 Selected Examples</a>):</strong>
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<a href="/allelicVariants/610308" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=610308[MIM]" class="btn btn-default mim-tip-hint" role="button" title="ClinVar aggregates information about sequence variation and its relationship to human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">ClinVar</a>
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<strong>.0001&nbsp;PETERS-PLUS SYNDROME</strong>
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B3GALTL, IVS8, G-A, +1
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs80338851 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs80338851;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/rs80338851?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=rs80338851" 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=rs80338851" 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=RCV000001326 OR RCV000082789 OR RCV003398411 OR RCV004965256" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000001326, RCV000082789, RCV003398411, RCV004965256" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000001326...</a>
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<p>In 2 sibs with Peters-plus syndrome (PTRPLS; <a href="/entry/261540">261540</a>) who had a microdeletion encompassing the B3GALTL gene on their maternal allele, <a href="#5" class="mim-tip-reference" title="Lesnik Oberstein, S. A. J., Kriek, M., White, S. J., Kalf, M. E., Szuhai, K., den Dunnen, J. T., Breuning, M. H., Hennekam, R. C. M. &lt;strong&gt;Peters plus syndrome is caused by mutations in B3GALTL, a putative glycosyltransferase.&lt;/strong&gt; Am. J. Hum. Genet. 79: 562-566, 2006. Note: Erratum: Am. J. Hum. Genet. 79: 985 only, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16909395/&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;16909395&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=16909395[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/507567&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="16909395">Lesnik Oberstein et al. (2006)</a> identified a 660+1G-A transition in the donor splice site of exon 8 of the B3GALTL gene on the paternal allele. Targeted sequencing analysis in an additional 18 Peters-plus patients from 15 families revealed homozygosity for the splice site mutation in 16 patients; in the remaining 2 patients (Dutch sibs), the mutation was found in compound heterozygosity with another splice site mutation (<a href="#0002">610308.0002</a>). Fourteen patients were Dutch whites, and the other patients were Turkish, British, Arab, or Indian. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16909395" 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>Using an immunopurification-mass spectroscopy method, <a href="#3" class="mim-tip-reference" title="Hess, D., Keusch, J. J., Oberstein, S. A. L., Hennekam, R. C. M., Hofsteenge, J. &lt;strong&gt;Peters Plus syndrome is a new congenital disorder of glycosylation and involves defective O-glycosylation of thrombospondin type 1 repeats.&lt;/strong&gt; J. Biol. Chem. 283: 7354-7360, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18199743/&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;18199743&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1074/jbc.M710251200&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="18199743">Hess et al. (2008)</a> found that Peters-plus patients carrying the 660+1G-A mutation in B3GALTL showed only the fucosyl-O- modification in all 4 O-fucosylation sites of the reporter protein properdin (PFC; <a href="/entry/300383">300383</a>). In contrast, properdin from heterozygous relatives and a healthy volunteer showed the glucosyl-beta-1,3-fucose-O- modification. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18199743" 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="Reis, L. M., Tyler, R. C., Abdul-Rahman, O., Trapane, P., Wallerstein, R., Broome, D., Hoffman, J., Khan, A., Paradiso, C., Ron, N., Bergner, A., Semina, E. V. &lt;strong&gt;Mutation analysis of B3GALTL in Peters plus syndrome.&lt;/strong&gt; Am. J. Med. Genet. 146A: 2603-2610, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18798333/&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;18798333&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18798333[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/10.1002/ajmg.a.32498&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="18798333">Reis et al. (2008)</a> identified homozygosity for the common 660+1G-A mutation in the B3GALTL gene in 2 patients, 1 Caucasian and 1 Hispanic, with Peter-plus syndrome. In 2 other Caucasian patients with this disorder, they identified compound heterozygosity for this mutation and either IVS6+1G-A (<a href="#0003">610308.0003</a>) or 230insT (<a href="#0004">610308.0004</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18798333" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In a Sri Lankan patient with Peters-plus syndrome, <a href="#1" class="mim-tip-reference" title="Dassie-Ajdid, J., Causse, A., Poidvin, A., Granier, M., Kaplan, J., Burglen, L., Doummar, D., Teisseire, P., Vigouroux, A., Malecaze, F., Calvas, P., Chassaing, N. &lt;strong&gt;Novel B3GALTL mutation in Peters-plus syndrome. (Letter)&lt;/strong&gt; Clin. Genet. 76: 490-492, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19796186/&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;19796186&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1399-0004.2009.01253.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="19796186">Dassie-Ajdid et al. (2009)</a> identified compound heterozygosity for the recurrent 660+1G-A mutation and a missense mutation (<a href="#0005">610308.0005</a>) in the B3GALTL gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19796186" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0002&nbsp;PETERS-PLUS SYNDROME</strong>
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B3GALTL, IVS5, G-A, +5
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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> rs80338850 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs80338850;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/rs80338850?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=rs80338850" 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=rs80338850" 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=RCV000001327" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000001327" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000001327</a>
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<p>In 2 Dutch sibs with Peters-plus syndrome (PTRPLS; <a href="/entry/261540">261540</a>), <a href="#5" class="mim-tip-reference" title="Lesnik Oberstein, S. A. J., Kriek, M., White, S. J., Kalf, M. E., Szuhai, K., den Dunnen, J. T., Breuning, M. H., Hennekam, R. C. M. &lt;strong&gt;Peters plus syndrome is caused by mutations in B3GALTL, a putative glycosyltransferase.&lt;/strong&gt; Am. J. Hum. Genet. 79: 562-566, 2006. Note: Erratum: Am. J. Hum. Genet. 79: 985 only, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16909395/&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;16909395&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=16909395[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/507567&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="16909395">Lesnik Oberstein et al. (2006)</a> found compound heterozygosity for the 660+1G-A mutation (<a href="#0001">610308.0001</a>) and for another donor splice site mutation, 347+5G-A, in the B3GALTL gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16909395" 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;PETERS-PLUS SYNDROME</strong>
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B3GALTL, IVS6, G-A, +1
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs767361165 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs767361165;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/rs767361165?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=rs767361165" 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=rs767361165" 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=RCV000001328 OR RCV000521944 OR RCV001266406" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000001328, RCV000521944, RCV001266406" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000001328...</a>
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<p>In a Caucasian patient with Peters-plus syndrome (PTRPLS; <a href="/entry/261540">261540</a>), <a href="#6" class="mim-tip-reference" title="Reis, L. M., Tyler, R. C., Abdul-Rahman, O., Trapane, P., Wallerstein, R., Broome, D., Hoffman, J., Khan, A., Paradiso, C., Ron, N., Bergner, A., Semina, E. V. &lt;strong&gt;Mutation analysis of B3GALTL in Peters plus syndrome.&lt;/strong&gt; Am. J. Med. Genet. 146A: 2603-2610, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18798333/&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;18798333&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18798333[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/10.1002/ajmg.a.32498&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="18798333">Reis et al. (2008)</a> identified compound heterozygosity for 2 mutations in the B3GALTL gene: the common 660+1G-A mutation (<a href="#0001">610308.0001</a>) and a 459+1G-A mutation in exon 6. The mutation is predicted to alter splicing, leading to a truncated protein product or nonsense-mediated decay. The mutation was not found in 180 control samples from unaffected individuals. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18798333" 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 an infant with Peters-plus syndrome, <a href="#1" class="mim-tip-reference" title="Dassie-Ajdid, J., Causse, A., Poidvin, A., Granier, M., Kaplan, J., Burglen, L., Doummar, D., Teisseire, P., Vigouroux, A., Malecaze, F., Calvas, P., Chassaing, N. &lt;strong&gt;Novel B3GALTL mutation in Peters-plus syndrome. (Letter)&lt;/strong&gt; Clin. Genet. 76: 490-492, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19796186/&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;19796186&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1399-0004.2009.01253.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="19796186">Dassie-Ajdid et al. (2009)</a> identified homozygosity for the 459+1G-A mutation in the B3GALTL gene. The parents were each heterozygous for the mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19796186" 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;PETERS-PLUS SYNDROME</strong>
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B3GALTL, 1-BP INS, 230T
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs1593258510 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1593258510;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=rs1593258510" 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=rs1593258510" 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=RCV000001329" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000001329" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000001329</a>
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<p>In a Caucasian patient with Peters-plus syndrome (PTRPLS; <a href="/entry/261540">261540</a>), <a href="#6" class="mim-tip-reference" title="Reis, L. M., Tyler, R. C., Abdul-Rahman, O., Trapane, P., Wallerstein, R., Broome, D., Hoffman, J., Khan, A., Paradiso, C., Ron, N., Bergner, A., Semina, E. V. &lt;strong&gt;Mutation analysis of B3GALTL in Peters plus syndrome.&lt;/strong&gt; Am. J. Med. Genet. 146A: 2603-2610, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18798333/&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;18798333&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18798333[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/10.1002/ajmg.a.32498&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="18798333">Reis et al. (2008)</a> identified compound heterozygosity for 2 mutations in the B3GALTL gene: the common 660+1G-A mutation (<a href="#0001">610308.0001</a>) and a 1-bp insertion (230insT) in exon 4. The mutation is predicted to alter splicing, leading to a truncated protein product or nonsense-mediated decay. The mutation was not found in 180 control samples from unaffected individuals. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18798333" 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;PETERS-PLUS SYNDROME</strong>
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B3GALTL, GLY393GLU
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs267606675 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs267606675;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=rs267606675" 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=rs267606675" 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=RCV000001330" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000001330" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000001330</a>
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<p>In a Sri Lankan patient with Peters-plus syndrome (PTRPLS; <a href="/entry/261540">261540</a>), <a href="#1" class="mim-tip-reference" title="Dassie-Ajdid, J., Causse, A., Poidvin, A., Granier, M., Kaplan, J., Burglen, L., Doummar, D., Teisseire, P., Vigouroux, A., Malecaze, F., Calvas, P., Chassaing, N. &lt;strong&gt;Novel B3GALTL mutation in Peters-plus syndrome. (Letter)&lt;/strong&gt; Clin. Genet. 76: 490-492, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19796186/&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;19796186&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1399-0004.2009.01253.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="19796186">Dassie-Ajdid et al. (2009)</a> identified compound heterozygosity for the recurrent 660+1G-A mutation (<a href="#0001">610308.0001</a>) and a 1178G-A transition in exon 13 of the B3GALTL gene, resulting in a gly393-to-glu (G393E) substitution at a conserved residue. The parents were each heterozygous for 1 of the mutations. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19796186" 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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<span id="mimReferencesToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>REFERENCES</strong>
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<div id="mimReferencesFold" class="collapse in mimTextToggleFold">
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<a id="1" class="mim-anchor"></a>
<a id="Dassie-Ajdid2009" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Dassie-Ajdid, J., Causse, A., Poidvin, A., Granier, M., Kaplan, J., Burglen, L., Doummar, D., Teisseire, P., Vigouroux, A., Malecaze, F., Calvas, P., Chassaing, N.
<strong>Novel B3GALTL mutation in Peters-plus syndrome. (Letter)</strong>
Clin. Genet. 76: 490-492, 2009.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/19796186/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">19796186</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19796186" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1111/j.1399-0004.2009.01253.x" target="_blank">Full Text</a>]
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<a id="Heinonen2003" class="mim-anchor"></a>
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Heinonen, T. Y. K., Pasternack, L., Lindfors, K., Breton, C., Gastinel, L. N., Maki, M., Kainulainen, H.
<strong>A novel human glycosyltransferase: primary structure and characterization of the gene and transcripts.</strong>
Biochem. Biophys. Res. Commun. 309: 166-174, 2003.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12943678/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12943678</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12943678" 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/s0006-291x(03)01540-7" target="_blank">Full Text</a>]
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<a id="Hess2008" class="mim-anchor"></a>
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Hess, D., Keusch, J. J., Oberstein, S. A. L., Hennekam, R. C. M., Hofsteenge, J.
<strong>Peters Plus syndrome is a new congenital disorder of glycosylation and involves defective O-glycosylation of thrombospondin type 1 repeats.</strong>
J. Biol. Chem. 283: 7354-7360, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18199743/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18199743</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18199743" 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.M710251200" target="_blank">Full Text</a>]
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<a id="Kozma2006" class="mim-anchor"></a>
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<p class="mim-text-font">
Kozma, K., Keusch, J. J., Hegemann, B., Luther, K. B., Klein, D., Hess, D., Haltiwanger, R. S., Hofsteenge, J.
<strong>Identification and characterization of a beta-1,3-glucosyltransferase that synthesizes the Glc-beta-1,3-Fuc disaccharide on thrombospondin type 1 repeats.</strong>
J. Biol. Chem. 281: 36742-36751, 2006.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/17032646/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">17032646</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17032646" 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.M605912200" target="_blank">Full Text</a>]
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<a id="Lesnik Oberstein2006" class="mim-anchor"></a>
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Lesnik Oberstein, S. A. J., Kriek, M., White, S. J., Kalf, M. E., Szuhai, K., den Dunnen, J. T., Breuning, M. H., Hennekam, R. C. M.
<strong>Peters plus syndrome is caused by mutations in B3GALTL, a putative glycosyltransferase.</strong>
Am. J. Hum. Genet. 79: 562-566, 2006. Note: Erratum: Am. J. Hum. Genet. 79: 985 only, 2006.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/16909395/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">16909395</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=16909395[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=16909395" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1086/507567" target="_blank">Full Text</a>]
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<a id="Reis2008" class="mim-anchor"></a>
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<p class="mim-text-font">
Reis, L. M., Tyler, R. C., Abdul-Rahman, O., Trapane, P., Wallerstein, R., Broome, D., Hoffman, J., Khan, A., Paradiso, C., Ron, N., Bergner, A., Semina, E. V.
<strong>Mutation analysis of B3GALTL in Peters plus syndrome.</strong>
Am. J. Med. Genet. 146A: 2603-2610, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18798333/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18798333</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=18798333[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=18798333" 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/ajmg.a.32498" target="_blank">Full Text</a>]
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<a id="Sato2006" class="mim-anchor"></a>
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Sato, T., Sato, M., Kiyohara, K., Sogabe, M., Shikanai, T., Kikuchi, N., Togayachi, A., Ishida, H., Ito, H., Kameyama, A., Gotoh, M., Narimatsu, H.
<strong>Molecular cloning and characterization of a novel human beta-1,3-glucosyltransferase, which is localized at the endoplasmic reticulum and glucosylates O-linked fucosylglycan on thrombospondin type 1 repeat domain.</strong>
Glycobiology 16: 1194-1206, 2006.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/16899492/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">16899492</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16899492" 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/glycob/cwl035" target="_blank">Full Text</a>]
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<a id="Vasudevan2015" class="mim-anchor"></a>
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<p class="mim-text-font">
Vasudevan, D., Takeuchi, H., Johar, S. S., Majerus, E., Haltiwanger, R. S.
<strong>Peters plus syndrome mutations disrupt a noncanonical ER quality-control mechanism.</strong>
Curr. Biol. 25: 286-295, 2015.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/25544610/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">25544610</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=25544610[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=25544610" 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.cub.2014.11.049" target="_blank">Full Text</a>]
</p>
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<a id="contributors" class="mim-anchor"></a>
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<a href="#mimCollapseContributors" role="button" data-toggle="collapse"> Contributors: </a>
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Patricia A. Hartz - updated : 2/25/2016
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Marla J. F. O'Neill - updated : 1/13/2010<br>Nara Sobreira - updated : 8/3/2009<br>Patricia A. Hartz - updated : 12/11/2008<br>Patricia A. Hartz - updated : 5/27/2008<br>Victor A. McKusick - updated : 8/23/2006
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Creation Date:
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<span class="mim-text-font">
Patricia A. Hartz : 8/10/2006
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carol : 07/06/2021
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alopez : 06/29/2021<br>mgross : 02/25/2016<br>mgross : 2/25/2016<br>wwang : 1/26/2010<br>terry : 1/13/2010<br>carol : 8/3/2009<br>carol : 4/22/2009<br>mgross : 12/12/2008<br>terry : 12/11/2008<br>mgross : 6/24/2008<br>terry : 5/27/2008<br>carol : 10/6/2006<br>alopez : 8/28/2006<br>terry : 8/23/2006<br>mgross : 8/11/2006
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<h3>
<span class="mim-font">
<strong>*</strong> 610308
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<h3>
<span class="mim-font">
BETA-3-GLUCOSYLTRANSFERASE; B3GLCT
</span>
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<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
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<h4>
<span class="mim-font">
UDP-GAL:BETA-GlcNAc BETA-1,3-GALACTOSYLTRANSFERASE-LIKE; B3GALTL<br />
BETA-3-GLYCOSYLTRANSFERASE-LIKE; B3GTL<br />
BETA-1,3-GLUCOSYLTRANSFERASE
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<p>
<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: B3GLCT</em></strong>
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<p>
<span class="mim-text-font">
<strong>SNOMEDCT:</strong> 449817000; &nbsp;
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<p>
<span class="mim-text-font">
<strong>
<em>
Cytogenetic location: 13q12.3
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : 13:31,199,975-31,332,276 </span>
</em>
</strong>
<span class="small">(from NCBI)</span>
</span>
</p>
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<div>
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<h4>
<span class="mim-font">
<strong>Gene-Phenotype Relationships</strong>
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</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">
13q12.3
</span>
</td>
<td>
<span class="mim-font">
Peters-plus syndrome
</span>
</td>
<td>
<span class="mim-font">
261540
</span>
</td>
<td>
<span class="mim-font">
Autosomal recessive
</span>
</td>
<td>
<span class="mim-font">
3
</span>
</td>
</tr>
</tbody>
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<h4>
<span class="mim-font">
<strong>TEXT</strong>
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<h4>
<span class="mim-font">
<strong>Description</strong>
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</h4>
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<span class="mim-text-font">
<p>B3GLCT is a beta-1,3-glucosyltransferase involved in the synthesis of the unusual O-linked disaccharide glucosyl-beta-1,3-fucose-O- found on the thrombospondin (see THBS1; 188060) type-1 repeats (TSRs) of many biologically important proteins. Biosynthesis of glucosyl-beta-1,3-fucose-O- is initiated by protein O-fucosyltransferase-2 (POFUT2; 610249), which attaches the fucosyl residue to a serine or threonine within the TSR. B3GLCT subsequently transfers the glucose onto TSR-fucose (Hess et al., 2008). </p>
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<h4>
<span class="mim-font">
<strong>Cloning and Expression</strong>
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</h4>
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<span class="mim-text-font">
<p>By EST database analysis and PCR of heart, brain, and kidney cDNA libraries, Heinonen et al. (2003) cloned B3GTL. The deduced 498-amino acid protein is a type II membrane protein with a 4-residue N-terminal cytoplasmic domain, a transmembrane domain, and a large C-terminal portion containing a stem region and a catalytic domain. The catalytic domains contains a triple-aspartate (DDD) motif at its core, a conserved pattern of cysteines, a C-terminal KDEL-like motif, and other residues and motifs conserved in beta-3-glycosyltransferases. Heinonen et al. (2003) identified B3GTL cDNAs with 3 types of 3-prime UTRs resulting from the use of different cleavage and polyadenylation sites. Northern blot analysis detected variable expression of 4.2- and 3.4-kb transcripts in all tissues examined. </p><p>Sato et al. (2006) cloned human and mouse B3GLCT, and they also identified B3GLCT orthologs in fly and nematode databases. Like human B3GLCT, the 489-amino acid mouse protein has 3 B3GT domains and a C-terminal KDEL-like sequence (REEL). Quantitative real-time PCR of human tissues revealed ubiquitous B3GLCT expression, with highest levels in testis and uterus. Immunohistochemical and immunoprecipitation analysis of transfected COS-1 cells showed that human B3GLCT localized to the endoplasmic reticulum and was secreted into the culture medium. The C-terminal REEL sequence was required for retention in the ER. </p>
</span>
<div>
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<h4>
<span class="mim-font">
<strong>Gene Structure</strong>
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</h4>
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<span class="mim-text-font">
<p>Heinonen et al. (2003) determined that the B3GALTL gene contains 15 coding exons and spans about 132 kb. The sequence in the vicinity of a transcriptional initiator element contains no canonical TATA or CAAT boxes, but it is unusually GC rich and has several SP1 (189906)-binding sites. B3GALTL has multiple transcription start sites, and the proximal promoter has binding sites for several differentiation-specific factors that regulate expression in blood, cardiac, and epithelial cells. </p>
</span>
<div>
<br />
</div>
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<h4>
<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>By genomic sequence analysis, Heinonen et al. (2003) mapped the B3GALTL gene to chromosome 13q12.3. </p>
</span>
<div>
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<div>
<h4>
<span class="mim-font">
<strong>Gene Function</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Heinonen et al. (2003) found that human intestinal epithelial cells increased expression of B3GTL 3.1-fold following treatment with TGF-beta (TGFB1; 190180). </p><p>Using a variety of radiolabeled uridine diphosphate (UDP) donors and monosaccharide acceptors, Sato et al. (2006) found that recombinant human B3GLCT exhibited glucosyltransferase activity only when UDP-glucose was used as the donor substrate and fucose-alpha-para-nitrophenyl was used as the acceptor substrate. B3GLCT showed glucosyltransferase activity toward H-antigen type 2 and Le(a), but not toward H-antigen type 1 and Le(x). It also showed glucosyltransferase activity toward a fucosylated TSR domain, but not a fucosylated EGF domain (see 131530). Mouse B3glct exhibited the same enzymatic activity as human B3GLCT. </p><p>Kozma et al. (2006) showed that human B3GLCT transferred glucose to recombinant fucosylated TSR domain-4 (TSR4) amplified from rat F-spondin (SPON1; 604989). B3GLCT attached the glucose residue in a beta-1,3-linkage to the fucosyl residue of the fucosylated threonine in TSR4-fucose, and it strongly preferred UDP-glucose as the sugar donor. Mutation of the DDD motif within the putative catalytic domain of B3GLCT abolished its enzymatic activity. </p><p>Vasudevan et al. (2015) showed that POFUT2-dependent addition of fucosyl groups sequentially stabilized TSRs in model substrates containing several tandem TSRs. Fucosylation of each TSR occurred cotranslationally in the ER, possibly in an N- to C-terminal manner. Addition of glucose by B3GLCT was predicted to further stabilize the folded structure before synthesis of the next TSR, preventing formation of inter-TSR disulfide bonds. Knockdown of POFUT2 in HEK293 cells via small interfering RNA severely impacted secretion of all TSR-containing proteins examined, whereas knockdown of B3GLCT had a more narrow effect, suggesting that B3GLCT stabilizes a subset of POGUT2 targets. Vasudevan et al. (2015) concluded that the POFUT2-B3GLCT machinery recognizes and stabilizes folded TSRs, allowing hydrophobic patches to be buried and cysteines to form disulfide bonds in 1 TSR prior to the emergence of the next TSR. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Peters-plus syndrome (PTRPLS; 261540) is an autosomal recessive disorder characterized by a variety of anterior eye-chamber defects, of which the Peters anomaly occurs most frequently. Other major symptoms are a disproportionate short stature, developmental delay, characteristic craniofacial features, and cleft lip and/or palate. To detect possible microrearrangements affecting the disease locus, Lesnik Oberstein et al. (2006) performed genomewide 1-Mb resolution array-based comparative genomic hybridization on genomic DNA of 2 brothers and 4 isolated patients who all carried the clinical diagnosis of Peters-plus syndrome. In both brothers, 2 adjacent BAC clones were found to be present in a single copy, representing an interstitial deletion of approximately 1.5 Mb on 13q12.3-q13.1. The B3GALTL gene, located in the region of deletion, was found to carry biallelic (homozygous or compound heterozygous) truncating mutations in all 20 tested patients, showing that Peters-plus syndrome is a monogenic, primarily single-mutation disorder. The 2 brothers carried on their nondeleted chromosome a point mutation (660+1G-A; 610308.0001) in the donor splice site of exon 8 of B3GALTL. The same mutation was present in single copy in the father, the deletion having been inherited from the mother. The homozygous 660+1G-A mutation was found in 16 of 18 patients studied. In 2 Dutch sibs, compound heterozygosity was found for the 660+1G-A mutation and a different mutation on the paternal allele in intron 5 of B3GALTL (347+5G-A; 610308.0002). SNP studies suggested that the mutation, observed not only in Dutch patients but also in Italian, Turkish, and English patients, represented a recurrent mutation, although some of the Dutch patients may have had a common ancestor. The mutation occurs at a site of a potentially methylated CpG dinucleotide, which could explain its recurrence. </p><p>Reis et al. (2008) examined B3GALTL exons and flanking introns in 4 patients with typical Peters-plus syndrome and 4 patients with only some characteristic features of this syndrome. They identified mutations in the B3GALTL gene in all 4 patients with typical Peters-plus syndrome but in none of the 4 patients with some phenotypic overlap. The previously identified 660+1G-A mutation was identified in homozygous state in 2 of the 4 patients and in compound heterozygous state with novel mutations (459+1G-A, 610308.0003 and 230insT, 610308.0004) in the other 2. </p><p>In 2 patients with Peters-plus syndrome, Dassie-Ajdid et al. (2009) identified homozygosity for the 459+1G-A mutation in one and compound heterozygosity for the recurrent 660+1G-A mutation and a missense mutation (610308.0005) in the other. Screening of the B3GALTL gene in 2 additional patients who had Peters anomaly (604229) and psychomotor delay but who did not meet other Peters-plus syndrome criteria did not reveal any mutations. </p><p><strong><em>Associations Pending Confirmation</em></strong></p><p>
For discussion of a possible association between variation near the B3GALTL gene and age-related macular degeneration, see ARMD1 (603075).</p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>5 Selected Examples):</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; PETERS-PLUS SYNDROME</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
B3GALTL, IVS8, G-A, +1
<br />
SNP: rs80338851,
gnomAD: rs80338851,
ClinVar: RCV000001326, RCV000082789, RCV003398411, RCV004965256
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 sibs with Peters-plus syndrome (PTRPLS; 261540) who had a microdeletion encompassing the B3GALTL gene on their maternal allele, Lesnik Oberstein et al. (2006) identified a 660+1G-A transition in the donor splice site of exon 8 of the B3GALTL gene on the paternal allele. Targeted sequencing analysis in an additional 18 Peters-plus patients from 15 families revealed homozygosity for the splice site mutation in 16 patients; in the remaining 2 patients (Dutch sibs), the mutation was found in compound heterozygosity with another splice site mutation (610308.0002). Fourteen patients were Dutch whites, and the other patients were Turkish, British, Arab, or Indian. </p><p>Using an immunopurification-mass spectroscopy method, Hess et al. (2008) found that Peters-plus patients carrying the 660+1G-A mutation in B3GALTL showed only the fucosyl-O- modification in all 4 O-fucosylation sites of the reporter protein properdin (PFC; 300383). In contrast, properdin from heterozygous relatives and a healthy volunteer showed the glucosyl-beta-1,3-fucose-O- modification. </p><p>Reis et al. (2008) identified homozygosity for the common 660+1G-A mutation in the B3GALTL gene in 2 patients, 1 Caucasian and 1 Hispanic, with Peter-plus syndrome. In 2 other Caucasian patients with this disorder, they identified compound heterozygosity for this mutation and either IVS6+1G-A (610308.0003) or 230insT (610308.0004). </p><p>In a Sri Lankan patient with Peters-plus syndrome, Dassie-Ajdid et al. (2009) identified compound heterozygosity for the recurrent 660+1G-A mutation and a missense mutation (610308.0005) in the B3GALTL gene. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0002 &nbsp; PETERS-PLUS SYNDROME</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
B3GALTL, IVS5, G-A, +5
<br />
SNP: rs80338850,
gnomAD: rs80338850,
ClinVar: RCV000001327
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 Dutch sibs with Peters-plus syndrome (PTRPLS; 261540), Lesnik Oberstein et al. (2006) found compound heterozygosity for the 660+1G-A mutation (610308.0001) and for another donor splice site mutation, 347+5G-A, in the B3GALTL gene. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0003 &nbsp; PETERS-PLUS SYNDROME</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
B3GALTL, IVS6, G-A, +1
<br />
SNP: rs767361165,
gnomAD: rs767361165,
ClinVar: RCV000001328, RCV000521944, RCV001266406
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a Caucasian patient with Peters-plus syndrome (PTRPLS; 261540), Reis et al. (2008) identified compound heterozygosity for 2 mutations in the B3GALTL gene: the common 660+1G-A mutation (610308.0001) and a 459+1G-A mutation in exon 6. The mutation is predicted to alter splicing, leading to a truncated protein product or nonsense-mediated decay. The mutation was not found in 180 control samples from unaffected individuals. </p><p>In an infant with Peters-plus syndrome, Dassie-Ajdid et al. (2009) identified homozygosity for the 459+1G-A mutation in the B3GALTL gene. The parents were each heterozygous for the mutation. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0004 &nbsp; PETERS-PLUS SYNDROME</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
B3GALTL, 1-BP INS, 230T
<br />
SNP: rs1593258510,
ClinVar: RCV000001329
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a Caucasian patient with Peters-plus syndrome (PTRPLS; 261540), Reis et al. (2008) identified compound heterozygosity for 2 mutations in the B3GALTL gene: the common 660+1G-A mutation (610308.0001) and a 1-bp insertion (230insT) in exon 4. The mutation is predicted to alter splicing, leading to a truncated protein product or nonsense-mediated decay. The mutation was not found in 180 control samples from unaffected individuals. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0005 &nbsp; PETERS-PLUS SYNDROME</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
B3GALTL, GLY393GLU
<br />
SNP: rs267606675,
ClinVar: RCV000001330
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a Sri Lankan patient with Peters-plus syndrome (PTRPLS; 261540), Dassie-Ajdid et al. (2009) identified compound heterozygosity for the recurrent 660+1G-A mutation (610308.0001) and a 1178G-A transition in exon 13 of the B3GALTL gene, resulting in a gly393-to-glu (G393E) substitution at a conserved residue. The parents were each heterozygous for 1 of the mutations. </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">
Dassie-Ajdid, J., Causse, A., Poidvin, A., Granier, M., Kaplan, J., Burglen, L., Doummar, D., Teisseire, P., Vigouroux, A., Malecaze, F., Calvas, P., Chassaing, N.
<strong>Novel B3GALTL mutation in Peters-plus syndrome. (Letter)</strong>
Clin. Genet. 76: 490-492, 2009.
[PubMed: 19796186]
[Full Text: https://doi.org/10.1111/j.1399-0004.2009.01253.x]
</p>
</li>
<li>
<p class="mim-text-font">
Heinonen, T. Y. K., Pasternack, L., Lindfors, K., Breton, C., Gastinel, L. N., Maki, M., Kainulainen, H.
<strong>A novel human glycosyltransferase: primary structure and characterization of the gene and transcripts.</strong>
Biochem. Biophys. Res. Commun. 309: 166-174, 2003.
[PubMed: 12943678]
[Full Text: https://doi.org/10.1016/s0006-291x(03)01540-7]
</p>
</li>
<li>
<p class="mim-text-font">
Hess, D., Keusch, J. J., Oberstein, S. A. L., Hennekam, R. C. M., Hofsteenge, J.
<strong>Peters Plus syndrome is a new congenital disorder of glycosylation and involves defective O-glycosylation of thrombospondin type 1 repeats.</strong>
J. Biol. Chem. 283: 7354-7360, 2008.
[PubMed: 18199743]
[Full Text: https://doi.org/10.1074/jbc.M710251200]
</p>
</li>
<li>
<p class="mim-text-font">
Kozma, K., Keusch, J. J., Hegemann, B., Luther, K. B., Klein, D., Hess, D., Haltiwanger, R. S., Hofsteenge, J.
<strong>Identification and characterization of a beta-1,3-glucosyltransferase that synthesizes the Glc-beta-1,3-Fuc disaccharide on thrombospondin type 1 repeats.</strong>
J. Biol. Chem. 281: 36742-36751, 2006.
[PubMed: 17032646]
[Full Text: https://doi.org/10.1074/jbc.M605912200]
</p>
</li>
<li>
<p class="mim-text-font">
Lesnik Oberstein, S. A. J., Kriek, M., White, S. J., Kalf, M. E., Szuhai, K., den Dunnen, J. T., Breuning, M. H., Hennekam, R. C. M.
<strong>Peters plus syndrome is caused by mutations in B3GALTL, a putative glycosyltransferase.</strong>
Am. J. Hum. Genet. 79: 562-566, 2006. Note: Erratum: Am. J. Hum. Genet. 79: 985 only, 2006.
[PubMed: 16909395]
[Full Text: https://doi.org/10.1086/507567]
</p>
</li>
<li>
<p class="mim-text-font">
Reis, L. M., Tyler, R. C., Abdul-Rahman, O., Trapane, P., Wallerstein, R., Broome, D., Hoffman, J., Khan, A., Paradiso, C., Ron, N., Bergner, A., Semina, E. V.
<strong>Mutation analysis of B3GALTL in Peters plus syndrome.</strong>
Am. J. Med. Genet. 146A: 2603-2610, 2008.
[PubMed: 18798333]
[Full Text: https://doi.org/10.1002/ajmg.a.32498]
</p>
</li>
<li>
<p class="mim-text-font">
Sato, T., Sato, M., Kiyohara, K., Sogabe, M., Shikanai, T., Kikuchi, N., Togayachi, A., Ishida, H., Ito, H., Kameyama, A., Gotoh, M., Narimatsu, H.
<strong>Molecular cloning and characterization of a novel human beta-1,3-glucosyltransferase, which is localized at the endoplasmic reticulum and glucosylates O-linked fucosylglycan on thrombospondin type 1 repeat domain.</strong>
Glycobiology 16: 1194-1206, 2006.
[PubMed: 16899492]
[Full Text: https://doi.org/10.1093/glycob/cwl035]
</p>
</li>
<li>
<p class="mim-text-font">
Vasudevan, D., Takeuchi, H., Johar, S. S., Majerus, E., Haltiwanger, R. S.
<strong>Peters plus syndrome mutations disrupt a noncanonical ER quality-control mechanism.</strong>
Curr. Biol. 25: 286-295, 2015.
[PubMed: 25544610]
[Full Text: https://doi.org/10.1016/j.cub.2014.11.049]
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