nih-gov/www.ncbi.nlm.nih.gov/omim/605925

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- *605925 - PERICENTRIN; PCNT
- OMIM
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<span class="h4">*605925</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="#cloning">Cloning and Expression</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="#references"><strong>References</strong></a>
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<a href="#creationDate"><strong>Creation Date</strong></a>
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<div id="mimProteinLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://hprd.org/summary?hprd_id=05804&isoform_id=05804_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/PCNT" 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/4204829,10436252,21752882,27370634,31296687,34328010,81295809,119629682,119629683,119629684,119629685,119629686,194383920,311643673,313104312,937500814" 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/O95613" 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=5116" 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=ENSG00000160299;t=ENST00000359568" 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=PCNT" 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=PCNT" 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+5116" 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/PCNT" 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:5116" 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/5116" 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=chr21&hgg_gene=ENST00000359568.10&hgg_start=46324156&hgg_end=46445769&hgg_type=knownGene" class="mim-tip-hint" title="UCSC Genome Bioinformatics; gene-specific structure and function information with links to other databases." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UCSC', 'domain': 'genome.ucsc.edu'})">UCSC</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimClinicalResources">
<span class="panel-title">
<span class="small">
<a href="#mimClinicalResourcesLinksFold" id="mimClinicalResourcesLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimClinicalResourcesLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Clinical Resources</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimClinicalResourcesLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel" aria-labelledby="clinicalResources">
<div class="panel-body small mim-panel-body">
<div><a href="https://search.clinicalgenome.org/kb/genes/HGNC:16068" class="mim-tip-hint" title="A ClinGen curated resource of ratings for the strength of evidence supporting or refuting the clinical validity of the claim(s) that variation in a particular gene causes disease." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinGen Validity', 'domain': 'search.clinicalgenome.org'})">ClinGen Validity</a></div>
<div><a href="https://medlineplus.gov/genetics/gene/pcnt" 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=605925[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=605925[MIM]" class="mim-tip-hint" title="ClinVar aggregates information about sequence variation and its relationship to human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">ClinVar</a></div>
<div><a href="https://www.deciphergenomics.org/gene/PCNT/overview/clinical-info" class="mim-tip-hint" title="DECIPHER" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'DECIPHER', 'domain': 'DECIPHER'})">DECIPHER</a></div>
<div><a href="https://gnomad.broadinstitute.org/gene/ENSG00000160299" 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=PCNT" 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=PCNT" 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=PCNT" 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/PCNT" 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=PCNT&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/PA33079" 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:16068" 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/FBgn0086690.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:102722" 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/PCNT#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:102722" 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/5116/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=5116" 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://zfin.org/ZDB-GENE-030829-26" 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://reactome.org/content/query?q=PCNT&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> 1208348002<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>
605925
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
PERICENTRIN; PCNT
</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">
KENDRIN; KEN<br />
PERICENTRIN B<br />
PERICENTRIN 2, FORMERLY; PCNT2, FORMERLY
</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=PCNT" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">PCNT</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/21/181?start=-3&limit=10&highlight=181">21q22.3</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chr21:46324156-46445769&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'})">21:46,324,156-46,445,769</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/21/181?start=-3&limit=10&highlight=181">
21q22.3
</a>
</span>
</td>
<td>
<span class="mim-font">
Microcephalic osteodysplastic primordial dwarfism, type II
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/210720"> 210720 </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/605925" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/605925" 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="cloning" class="mim-anchor"></a>
<h4 href="#mimCloningFold" id="mimCloningToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimCloningToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Cloning and Expression</strong>
</span>
</h4>
</div>
<div id="mimCloningFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p>Eukaryotic chromosome segregation depends on mitotic spindle apparatus, a bipolar array of microtubules nucleated from centrosomes. Centrosomal microtubule nucleation requires attachment of gamma-tubulin (TUBG1; <a href="/entry/191135">191135</a>) ring complexes to a salt-insoluble centrosomal core. In budding yeast, this attachment is provided by the coiled-coil protein Spc110p, which links the yeast gamma-tubulin complex to the core of the yeast centrosome.</p><p><a href="#2" class="mim-tip-reference" title="Flory, M. R., Moser, M. J., Monnat, R. J., Jr., Davis, T. N. &lt;strong&gt;Identification of a human centrosomal calmodulin-binding protein that shares homology with pericentrin.&lt;/strong&gt; Proc. Nat. Acad. Sci. 97: 5919-5923, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10823944/&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;10823944&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=10823944[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/10.1073/pnas.97.11.5919&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="10823944">Flory et al. (2000)</a> showed that kendrin is a human homolog of yeast Spc110p. They identified kendrin by homology of its C-terminal calmodulin-binding site with that of Spc110p. The N-terminal regions of kendrin share significant sequence homology with pericentrin, a centrosome component known to interact with gamma-tubulin. (It was later determined that kendrin and pericentrin are identical.) Kendrin localizes specifically to centrosomes throughout the cell cycle. In mitotic human breast cancer cells containing abundant centrosome-like structures, <a href="#2" class="mim-tip-reference" title="Flory, M. R., Moser, M. J., Monnat, R. J., Jr., Davis, T. N. &lt;strong&gt;Identification of a human centrosomal calmodulin-binding protein that shares homology with pericentrin.&lt;/strong&gt; Proc. Nat. Acad. Sci. 97: 5919-5923, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10823944/&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;10823944&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=10823944[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/10.1073/pnas.97.11.5919&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="10823944">Flory et al. (2000)</a> found kendrin only at centrosomes associated with spindle microtubules. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10823944" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>By screening a human fetal liver cDNA expression library with anti-centrosome serum, followed by 5-prime RACE and rescreening a cDNA library with the RACE product, <a href="#9" class="mim-tip-reference" title="Li, Q., Hansen, D., Killilea, A., Joshi, H. C., Palazzo, R. E., Balczon, R. &lt;strong&gt;Kendrin/pericentrin-B, a centrosome protein with homology to pericentrin that complexes with PCM-1.&lt;/strong&gt; J. Cell. Sci. 114: 797-809, 2001.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11171385/&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;11171385&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1242/jcs.114.4.797&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="11171385">Li et al. (2001)</a> isolated a cDNA encoding kendrin, which they called pericentrin-B because of its high sequence identity with pericentrin, then thought to be a separate protein. Immunofluorescence microscopy demonstrated that kendrin is expressed in centrosomes and is an essential component of the pericentriolar material (PCM). Immunoblot analysis showed that kendrin is expressed as a greater than 350-kD protein. Sequence analysis predicted that the 3,321-amino acid protein contains a large N-terminal coiled-coil domain of approximately 1,500 residues and a smaller C-terminal coiled-coil domain of approximately 500 amino acids. Both coiled-coil domains are flanked by non-coiled ends. Immunoprecipitation and immunoblot analysis indicated that kendrin complexes with PCM1 (<a href="/entry/600299">600299</a>) but not with gamma-tubulin. Functional analysis suggested that kendrin and PCM1 activities are not essential for the microtubule nucleation process. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11171385" 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="Kantaputra, P., Tanpaiboon, P., Porntaveetus, T., Ohazama, A., Sharpe, P., Rauch, A., Hussadaloy, A., Thiel, C. T. &lt;strong&gt;The smallest teeth in the world are caused my mutations in the PCNT gene.&lt;/strong&gt; Am. J. Med. Genet. 155A: 1398-1403, 2011.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21567919/&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;21567919&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.33984&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="21567919">Kantaputra et al. (2011)</a> performed in situ hybridization analysis of lower molar tooth expression in wildtype mice, and observed that the first Pcnt signals were derived from tooth-presumptive epithelium at embryonic day 9.5. Pcnt was expressed in the thickened tooth epithelium and mesenchyme at E12.5, in the bud epithelium at embryonic day 13.5, and in the cap epithelium and dental papillae at embryonic day 14.5, with weak expression in both ameloblasts and odontoblasts at embryonic day 18.5. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21567919" 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>
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<p>By PCR amplification, Southern blot analysis, and fluorescence in situ hybridization, <a href="#1" class="mim-tip-reference" title="Chen, H., Gos, A., Morris, M. A., Antonarakis, S. E. &lt;strong&gt;Localization of a human homolog of the mouse pericentrin gene (PCNT) to chromosome 21qter.&lt;/strong&gt; Genomics 35: 620-624, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8812505/&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;8812505&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1006/geno.1996.0411&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="8812505">Chen et al. (1996)</a> mapped the kendrin (PCNT) gene to 21q between PFKL (<a href="/entry/171860">171860</a>) at 21q22.3 and 21qter. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8812505" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><a href="#11" class="mim-tip-reference" title="Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others. &lt;strong&gt;Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.&lt;/strong&gt; Science 319: 816-819, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18174396/&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;18174396&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.1151174&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="18174396">Rauch et al. (2008)</a> demonstrated that absence of PCNT results in disorganized mitotic spindles and missegregation of chromosomes. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18174396" 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 small interfering RNA (siRNA), <a href="#3" class="mim-tip-reference" title="Graser, S., Stierhof, Y.-D., Lavoie, S. B., Gassner, O. S., Lamla, S., Le Clech, M., Nigg, E. A. &lt;strong&gt;Cep164, a novel centriole appendage protein required for primary cilium formation.&lt;/strong&gt; J. Cell Biol. 179: 321-330, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17954613/&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;17954613&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=17954613[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/10.1083/jcb.200707181&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="17954613">Graser et al. (2007)</a> found that depletion of pericentrin, CEP290 (<a href="/entry/610142">610142</a>), or CEP164 (<a href="/entry/614848">614848</a>) in human retinal pigment epithelial cells prevented serum starvation-induced formation of a primary cilium. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17954613" 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 siRNA screen, <a href="#4" class="mim-tip-reference" title="Graser, S., Stierhof, Y.-D., Nigg, E. A. &lt;strong&gt;Cep68 and Cep215 (Cdk5rap2) are required for centrosome cohesion.&lt;/strong&gt; J. Cell. Sci. 120: 4321-4331, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18042621/&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;18042621&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1242/jcs.020248&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="18042621">Graser et al. (2007)</a> found that depletion of CNAP1 (CEP2; <a href="/entry/609689">609689</a>), rootletin (CROCC; <a href="/entry/615776">615776</a>), pericentrin, CEP68 (<a href="/entry/616889">616889</a>), or CEP215 (CDK5RAP2; <a href="/entry/608201">608201</a>) reduced centrosome cohesion and caused centrosome splitting in U2OS, A549, and RPE1 cells. Depletion of CNAP1 and rootletin produced the most severe phenotype. Depletion of pericentrin caused loss of CEP215 from centrioles, but depletion of CEP215 had no effect on pericentrin. <a href="#4" class="mim-tip-reference" title="Graser, S., Stierhof, Y.-D., Nigg, E. A. &lt;strong&gt;Cep68 and Cep215 (Cdk5rap2) are required for centrosome cohesion.&lt;/strong&gt; J. Cell. Sci. 120: 4321-4331, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18042621/&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;18042621&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1242/jcs.020248&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="18042621">Graser et al. (2007)</a> concluded that CEP215 and pericentrin functionally interact and influence centrosome cohesion through an indirect mechanism independent of CNAP1, rootletin, and CEP68. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18042621" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p>Individuals with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>) have an average birth weight of less that 1500 g at term, an average adult height of 100 cm, a brain size comparable to that of a 3-month old but usually with near-normal intelligence, and a variety of associated bone abnormalities. <a href="#11" class="mim-tip-reference" title="Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others. &lt;strong&gt;Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.&lt;/strong&gt; Science 319: 816-819, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18174396/&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;18174396&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.1151174&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="18174396">Rauch et al. (2008)</a> identified 29 different homozygous or compound heterozygous mutations in the PCNT gene in 25 patients with MOPD2. There were 12 stop mutations and 17 frameshift mutations (4 splice site mutations, 2 small insertions, 2 small deletions, and 1 exon deletion). Two mutations occurred twice in unrelated patients, namely, R1923X (<a href="#0004">605925.0004</a>) and 841insG (<a href="#0005">605925.0005</a>). In contrast, they identified no PCNT mutations in 27 patients with a clinical diagnosis of MOPD1 (<a href="/entry/210710">210710</a>), MOPD3 (see <a href="/entry/210710">210710</a>), Seckel syndrome (see <a href="/entry/210600">210600</a>), or unclassified growth retardation syndromes. Absence of the PCNT protein was confirmed by Western blot analysis of lymphoblastoid cell lines from 2 patients, and both investigated heterozygous parents of 1 of these patients showed reduced protein levels in lymphoblasts. <a href="#11" class="mim-tip-reference" title="Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others. &lt;strong&gt;Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.&lt;/strong&gt; Science 319: 816-819, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18174396/&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;18174396&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.1151174&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="18174396">Rauch et al. (2008)</a> suggested that this may explain their finding of significant reduction of the mean height of heterozygous MOPD II parents. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18174396" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#5" class="mim-tip-reference" title="Griffith, E., Walker, S., Martin, C.-A., Vagnarelli, P., Stiff, T., Vernay, B., Al Sanna, N., Saggar, A., Hamel, B., Earnshaw, W. C., Jeggo, P. A., Jackson, A. P., O&#x27;Driscoll, M. &lt;strong&gt;Mutations in pericentrin cause Seckel syndrome with defective ATR-dependent DNA damage signaling.&lt;/strong&gt; Nature Genet. 40: 232-236, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18157127/&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;18157127&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18157127[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng.2007.80&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="18157127">Griffith et al. (2008)</a> performed a SNP-microarray genomewide homozygosity scan on 2 consanguineous families from the Middle East that included individuals clinically diagnosed with Seckel syndrome and showing cellular evidence of defective ATR signaling (<a href="/entry/601215">601215</a>). They mapped the disorder in these families to chromosome 21q22.3 in the region of the PCNT gene. By sequencing the 47 coding exons of the PCNT gene in affected individuals from the 2 Middle Eastern families, they identified homozygous truncating mutations in both: E220X (<a href="#0001">605925.0001</a>) in one and S629fs (<a href="#0002">605925.0002</a>) in the other. From screening of additional cases, they identified another truncating mutation in the PCNT gene (<a href="#0003">605925.0003</a>) in a consanguineous Moroccan family. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18157127" 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="#13" class="mim-tip-reference" title="Willems, M., Genevieve, D., Borck, G., Baujat, G., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V. &lt;strong&gt;Pericentrin molecular analysis in 22 Seckel/MOPDII patients. (Abstract)&lt;/strong&gt; 58th Annual Meeting, American Society of Human Genetics, Philadelphia 2008. P. 91."None>Willems et al. (2008)</a> noted that mutations in the PCNT gene had been identified in 28 patients, including the 25 with MOPD II reported by <a href="#11" class="mim-tip-reference" title="Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others. &lt;strong&gt;Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.&lt;/strong&gt; Science 319: 816-819, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18174396/&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;18174396&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.1151174&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="18174396">Rauch et al. (2008)</a> and the 3 diagnosed with Seckel syndrome reported by <a href="#5" class="mim-tip-reference" title="Griffith, E., Walker, S., Martin, C.-A., Vagnarelli, P., Stiff, T., Vernay, B., Al Sanna, N., Saggar, A., Hamel, B., Earnshaw, W. C., Jeggo, P. A., Jackson, A. P., O&#x27;Driscoll, M. &lt;strong&gt;Mutations in pericentrin cause Seckel syndrome with defective ATR-dependent DNA damage signaling.&lt;/strong&gt; Nature Genet. 40: 232-236, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18157127/&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;18157127&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18157127[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng.2007.80&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="18157127">Griffith et al. (2008)</a>. They performed direct sequencing of PCNT in 21 patients and identified 9 distinct mutations in 4 of the 16 patients diagnosed with Seckel syndrome and in all 5 patients diagnosed with MOPD II. Clinical analysis of the 4 Seckel syndrome patients with PCNT mutations showed that all presented minor skeletal changes and a severe growth retardation more suggestive of MOPD II. <a href="#13" class="mim-tip-reference" title="Willems, M., Genevieve, D., Borck, G., Baujat, G., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V. &lt;strong&gt;Pericentrin molecular analysis in 22 Seckel/MOPDII patients. (Abstract)&lt;/strong&gt; 58th Annual Meeting, American Society of Human Genetics, Philadelphia 2008. P. 91."None>Willems et al. (2008)</a> concluded that, despite variable clinical severity, MOPD II is a genetically homogeneous condition due to loss of function of pericentrin. Thus, the patients reported by <a href="#5" class="mim-tip-reference" title="Griffith, E., Walker, S., Martin, C.-A., Vagnarelli, P., Stiff, T., Vernay, B., Al Sanna, N., Saggar, A., Hamel, B., Earnshaw, W. C., Jeggo, P. A., Jackson, A. P., O&#x27;Driscoll, M. &lt;strong&gt;Mutations in pericentrin cause Seckel syndrome with defective ATR-dependent DNA damage signaling.&lt;/strong&gt; Nature Genet. 40: 232-236, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18157127/&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;18157127&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18157127[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng.2007.80&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="18157127">Griffith et al. (2008)</a> with mutations in the PCNT gene can be considered to have MOPD II. In their full report, in which additional patients were studied, <a href="#14" class="mim-tip-reference" title="Willems, M., Genevieve, D., Borck, G., Baumann, C., Baujat, G., Bieth, E., Edery, P., Farra, C., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Lyonnet, S., Martin-Coignard, D., Mathieu, M., Thauvin-Robinet, C., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V. &lt;strong&gt;Molecular analysis of pericentrin gene (PCNT) in a series of 24 Seckel/microcephalic osteodysplastic primordial dwarfism type II (MOPD II) families.&lt;/strong&gt; J. Med. Genet. 47: 797-802, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19643772/&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;19643772&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.2009.067298&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="19643772">Willems et al. (2010)</a> identified a total of 13 distinct mutations in the PCNT gene, including one in another patient diagnosed with Seckel syndrome (<a href="#0009">605925.0009</a>); this patient also had minor skeletal changes and clinical features compatible with a diagnosis of MOPD II. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=19643772+18157127+18174396" 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 3-year-old Italian boy who was diagnosed at birth with Seckel syndrome but in whom the diagnosis was later revised to MOPD II, <a href="#10" class="mim-tip-reference" title="Piane, M., Della Monica, M., Piatelli, G., Lulli, P., Lonardo, F., Chessa, L., Scarano, G. &lt;strong&gt;Majewski osteodysplastic primordial dwarfism type II (MOPD II) syndrome previously diagnosed as Seckel syndrome: report of a novel mutation of the PCNT gene.&lt;/strong&gt; Am. J. Med. Genet. 149A: 2452-2456, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19839044/&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;19839044&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.33035&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="19839044">Piane et al. (2009)</a> identified homozygosity for a 1-bp insertion in the PCNT gene (<a href="#0012">605925.0012</a>). Noting the phenotypic overlap between Seckel syndrome and MOPD II, the authors emphasized the need for reevaluation in patients since certain clinical features may not be evident at birth; they considered PCNT mutations to be the hallmark for a correct diagnosis of MOPD II. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19839044" 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 4 patients from 2 unrelated Thai pedigrees with features of MOPD II as well as extreme microdontia and alveolar bone hypoplasia, <a href="#8" class="mim-tip-reference" title="Kantaputra, P., Tanpaiboon, P., Porntaveetus, T., Ohazama, A., Sharpe, P., Rauch, A., Hussadaloy, A., Thiel, C. T. &lt;strong&gt;The smallest teeth in the world are caused my mutations in the PCNT gene.&lt;/strong&gt; Am. J. Med. Genet. 155A: 1398-1403, 2011.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21567919/&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;21567919&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.33984&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="21567919">Kantaputra et al. (2011)</a> identified homozygosity or compound heterozygosity for mutations in the PCNT gene (<a href="#0004">605925.0004</a>; <a href="#0010">605925.0010</a>-<a href="#0011">605925.0011</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21567919" 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 unrelated patients with MOPD II from the Druze population in Israel, <a href="#12" class="mim-tip-reference" title="Weiss, K., Ekhilevitch, N., Cohen, L., Bratman-Morag, S., Bello, R., Martinez, A. F., Hadid, Y., Shlush, L. I., Kurolap, A., Paperna, T., Mory, A., Baris, H. N., Muenke, M. &lt;strong&gt;Identification of a novel PCNT founder pathogenic variant in the Israeli Druze population.&lt;/strong&gt; Europ. J. Med. Genet. 63: 103643, 2020. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30922925/&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;30922925&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ejmg.2019.03.007&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="30922925">Weiss et al. (2020)</a> identified homozygosity for a splice site mutation in the PCNT gene (<a href="#0013">605925.0013</a>). The mutation was reported in heterozygous state in 4 individuals from South Asia in the gnomAD database (allele frequency of 0.0001) and was not present in the Greater Middle East Variome Project database. Screening of 150 DNA samples from different paternal households in the Druze population revealed 5 mutation carriers, resulting in a carrier rate of 1:30. The affected patients and carriers were from 7 different Druze villages, leading <a href="#12" class="mim-tip-reference" title="Weiss, K., Ekhilevitch, N., Cohen, L., Bratman-Morag, S., Bello, R., Martinez, A. F., Hadid, Y., Shlush, L. I., Kurolap, A., Paperna, T., Mory, A., Baris, H. N., Muenke, M. &lt;strong&gt;Identification of a novel PCNT founder pathogenic variant in the Israeli Druze population.&lt;/strong&gt; Europ. J. Med. Genet. 63: 103643, 2020. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30922925/&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;30922925&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ejmg.2019.03.007&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="30922925">Weiss et al. (2020)</a> to conclude that the mutation was a founder mutation and not a private mutation related to a certain village or family. <a href="#12" class="mim-tip-reference" title="Weiss, K., Ekhilevitch, N., Cohen, L., Bratman-Morag, S., Bello, R., Martinez, A. F., Hadid, Y., Shlush, L. I., Kurolap, A., Paperna, T., Mory, A., Baris, H. N., Muenke, M. &lt;strong&gt;Identification of a novel PCNT founder pathogenic variant in the Israeli Druze population.&lt;/strong&gt; Europ. J. Med. Genet. 63: 103643, 2020. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30922925/&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;30922925&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ejmg.2019.03.007&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="30922925">Weiss et al. (2020)</a> identified a haplotype shared by the 2 patients and an unrelated carrier which was localized to 450 kb in the subtelomeric region of chromosome 21q22.3. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30922925" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>ALLELIC VARIANTS (<a href="/help/faq#1_4"></strong>
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<strong>13 Selected Examples</a>):</strong>
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<a href="/allelicVariants/605925" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=605925[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;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, GLU220TER
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<p>In affected male and female members of a consanguineous Saudi Arabian family who had been diagnosed with Seckel syndrome (see <a href="/entry/210600">210600</a>), <a href="#5" class="mim-tip-reference" title="Griffith, E., Walker, S., Martin, C.-A., Vagnarelli, P., Stiff, T., Vernay, B., Al Sanna, N., Saggar, A., Hamel, B., Earnshaw, W. C., Jeggo, P. A., Jackson, A. P., O&#x27;Driscoll, M. &lt;strong&gt;Mutations in pericentrin cause Seckel syndrome with defective ATR-dependent DNA damage signaling.&lt;/strong&gt; Nature Genet. 40: 232-236, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18157127/&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;18157127&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18157127[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng.2007.80&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="18157127">Griffith et al. (2008)</a> identified homozygosity for a glu220-to-ter (E220X) mutation in the PCNT gene. Both patients were born at 33 weeks' gestation and were small at birth. One of them had diabetes mellitus. The parents in each case were heterozygous for the mutation, which was not found in over 200 control alleles. <a href="#13" class="mim-tip-reference" title="Willems, M., Genevieve, D., Borck, G., Baujat, G., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V. &lt;strong&gt;Pericentrin molecular analysis in 22 Seckel/MOPDII patients. (Abstract)&lt;/strong&gt; 58th Annual Meeting, American Society of Human Genetics, Philadelphia 2008. P. 91."None>Willems et al. (2008)</a> later reported that patients with mutations in the PCNT gene have type II microcephalic osteodysplastic primordial dwarfism (MOPD2; <a href="/entry/210720">210720</a>), a clinically variable but genetically homogeneous condition. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18157127" 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;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, SER629FS
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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> rs397509366 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs397509366;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/rs397509366?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=rs397509366" 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=rs397509366" 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=RCV000004969" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000004969" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000004969</a>
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<p>In a female diagnosed with Seckel syndrome (see <a href="/entry/210600">210600</a>), born of first-cousin parents in Kuwait, <a href="#5" class="mim-tip-reference" title="Griffith, E., Walker, S., Martin, C.-A., Vagnarelli, P., Stiff, T., Vernay, B., Al Sanna, N., Saggar, A., Hamel, B., Earnshaw, W. C., Jeggo, P. A., Jackson, A. P., O&#x27;Driscoll, M. &lt;strong&gt;Mutations in pericentrin cause Seckel syndrome with defective ATR-dependent DNA damage signaling.&lt;/strong&gt; Nature Genet. 40: 232-236, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18157127/&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;18157127&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18157127[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng.2007.80&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="18157127">Griffith et al. (2008)</a> identified homozygosity for a single-basepair deletion in exon 12 of the PCNT gene that led to a frameshift which was predicted to result in premature protein termination after an additional 65 amino acids (S629fs). The parents were heterozygous for the mutation, which was not found in over 200 control alleles. <a href="#13" class="mim-tip-reference" title="Willems, M., Genevieve, D., Borck, G., Baujat, G., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V. &lt;strong&gt;Pericentrin molecular analysis in 22 Seckel/MOPDII patients. (Abstract)&lt;/strong&gt; 58th Annual Meeting, American Society of Human Genetics, Philadelphia 2008. P. 91."None>Willems et al. (2008)</a> later reported that patients with mutations in the PCNT gene have type II microcephalic osteodysplastic primordial dwarfism (MOPD2; <a href="/entry/210720">210720</a>), a clinically variable but genetically homogeneous condition. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18157127" 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;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, CYS1190FS
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs397514033 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs397514033;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=rs397514033" 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=rs397514033" 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=RCV000004970" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000004970" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000004970</a>
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<p>In a male diagnosed with Seckel syndrome (see <a href="/entry/210600">210600</a>), born of first-cousin parents in Morocco, <a href="#5" class="mim-tip-reference" title="Griffith, E., Walker, S., Martin, C.-A., Vagnarelli, P., Stiff, T., Vernay, B., Al Sanna, N., Saggar, A., Hamel, B., Earnshaw, W. C., Jeggo, P. A., Jackson, A. P., O&#x27;Driscoll, M. &lt;strong&gt;Mutations in pericentrin cause Seckel syndrome with defective ATR-dependent DNA damage signaling.&lt;/strong&gt; Nature Genet. 40: 232-236, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18157127/&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;18157127&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=18157127[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng.2007.80&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="18157127">Griffith et al. (2008)</a> identified homozygosity for a 1-bp insertion in exon 18 of the PCNT gene, resulting in a frameshift at codon 1190 (C1190fs). The parents were heterozygous for the mutation, which was not found in over 200 control alleles. <a href="#13" class="mim-tip-reference" title="Willems, M., Genevieve, D., Borck, G., Baujat, G., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V. &lt;strong&gt;Pericentrin molecular analysis in 22 Seckel/MOPDII patients. (Abstract)&lt;/strong&gt; 58th Annual Meeting, American Society of Human Genetics, Philadelphia 2008. P. 91."None>Willems et al. (2008)</a> later reported that patients with mutations in the PCNT gene have type II microcephalic osteodysplastic primordial dwarfism (MOPD2; <a href="/entry/210720">210720</a>), a clinically variable but genetically homogeneous condition. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18157127" 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;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, ARG1923TER
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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> rs119479062 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs119479062;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/rs119479062?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=rs119479062" 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=rs119479062" 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=RCV000004971 OR RCV001851658" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000004971, RCV001851658" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000004971...</a>
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<p>In 2 patients with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>) from consanguineous but unrelated families, one of Omani descent and the other of Pakistani descent, <a href="#11" class="mim-tip-reference" title="Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others. &lt;strong&gt;Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.&lt;/strong&gt; Science 319: 816-819, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18174396/&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;18174396&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.1151174&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="18174396">Rauch et al. (2008)</a> identified homozygosity for a 5767C-T transition in the PCNT gene, resulting in an arg1923-to-ter (R1923X) substitution. The patients, aged 5.5 and 1.5 years, were born prematurely, one at 34 and the other at 32 weeks' gestation, with severe intrauterine growth retardation. Both had severe short stature, extreme microcephaly, and mild developmental delay. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18174396" 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 Thai brother and sister with features of MOPD2 as well as extreme microdontia and alveolar bone hypoplasia, originally reported by <a href="#7" class="mim-tip-reference" title="Kantaputra, P. N. &lt;strong&gt;Apparently new osteodysplastic and primordial short stature with severe microdontia, opalescent teeth, and rootless molars in two siblings.&lt;/strong&gt; Am. J. Med. Genet. 111: 420-428, 2002.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12210304/&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;12210304&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.10589&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="12210304">Kantaputra (2002)</a>, <a href="#8" class="mim-tip-reference" title="Kantaputra, P., Tanpaiboon, P., Porntaveetus, T., Ohazama, A., Sharpe, P., Rauch, A., Hussadaloy, A., Thiel, C. T. &lt;strong&gt;The smallest teeth in the world are caused my mutations in the PCNT gene.&lt;/strong&gt; Am. J. Med. Genet. 155A: 1398-1403, 2011.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21567919/&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;21567919&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.33984&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="21567919">Kantaputra et al. (2011)</a> identified compound heterozygosity for the R1923X mutation in the PCNT gene and a 3-bp deletion (9460delAAG; <a href="#0010">605925.0010</a>) in exon 43, predicted to result in deletion of lys315. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=21567919+12210304" 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;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, 1-BP INS, 841G
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs1601795448 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1601795448;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=rs1601795448" 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=rs1601795448" 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=RCV000004972" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000004972" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000004972</a>
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<p>In 2 presumably unrelated Turkish patients with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>), one from a consanguineous and the other from an apparently nonconsanguineous union, <a href="#11" class="mim-tip-reference" title="Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others. &lt;strong&gt;Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.&lt;/strong&gt; Science 319: 816-819, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18174396/&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;18174396&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.1151174&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="18174396">Rauch et al. (2008)</a> identified homozygosity for a 1-bp insertion, 841_842insG, resulting in a frameshift at arg281 and a termination codon at position 327 (Arg281fsTer327). The patient from the nonconsanguineous union was born at 35 weeks' gestation weighing 1300 g, and the other patient was born at 40 weeks' gestation weighing 1320 g. The patients, aged 12 and 5.5 years, had severe short stature and extreme microcephaly with mild developmental delay. Both also had multiple brain aneurysms and moyamoya disease (see <a href="/entry/252350">252350</a>). Further analyses suggested that this mutation was transmitted through an unknown common ancestor because both patients were identical for all polymorphic sites identified within the PCNT region. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18174396" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="0006" class="mim-anchor"></a>
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<strong>.0006&nbsp;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, GLU1037TER
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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> rs119479063 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs119479063;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/rs119479063?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=rs119479063" 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=rs119479063" 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=RCV000004973 OR RCV000351291" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000004973, RCV000351291" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000004973...</a>
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<p>In a 12-year-old Turkish girl with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>), whose parents were consanguineous, <a href="#11" class="mim-tip-reference" title="Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others. &lt;strong&gt;Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.&lt;/strong&gt; Science 319: 816-819, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18174396/&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;18174396&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.1151174&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="18174396">Rauch et al. (2008)</a> identified homozygosity for a 3109G-T transversion in the PCNT gene, resulting in a glu1037-to-ter (E1037X) substitution. The child was born at 34 weeks' gestation weighing only 880 g. She had severe short stature, extreme microcephaly, multiple brain aneurysms, moyamoya disease, and mild developmental delay. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18174396" 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 male patient from Turkey with the diagnosis of MOPD2, <a href="#14" class="mim-tip-reference" title="Willems, M., Genevieve, D., Borck, G., Baumann, C., Baujat, G., Bieth, E., Edery, P., Farra, C., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Lyonnet, S., Martin-Coignard, D., Mathieu, M., Thauvin-Robinet, C., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V. &lt;strong&gt;Molecular analysis of pericentrin gene (PCNT) in a series of 24 Seckel/microcephalic osteodysplastic primordial dwarfism type II (MOPD II) families.&lt;/strong&gt; J. Med. Genet. 47: 797-802, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19643772/&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;19643772&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.2009.067298&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="19643772">Willems et al. (2010)</a> identified homozygosity for the E1037X mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19643772" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0007&nbsp;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, 486-BP DEL, NT84
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<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000004974" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000004974" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000004974</a>
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<p>In a 12.5-year-old girl of consanguineous Kurdish descent with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>), <a href="#11" class="mim-tip-reference" title="Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others. &lt;strong&gt;Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.&lt;/strong&gt; Science 319: 816-819, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18174396/&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;18174396&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.1151174&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="18174396">Rauch et al. (2008)</a> identified homozygosity for a large deletion extending from IVS30 at nucleotide 84 to IVS34 at nucleotide 569, which resulted in a frameshift leading to a premature termination codon at amino acid 2317 (IVS30-84_IVS31-569del). The child was born at term weighing 1200 g. She was -9 SD in height and -8.7 SD for head circumference. She had moyamoya disease and no developmental delay. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18174396" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0008&nbsp;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, ARG2918TER
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs119479064 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs119479064;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=rs119479064" 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=rs119479064" 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=RCV000004975 OR RCV003555918" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000004975, RCV003555918" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000004975...</a>
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<p>In 2 children with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>), aged 6.5 and 5 years, in a consanguineous Dutch family, <a href="#11" class="mim-tip-reference" title="Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others. &lt;strong&gt;Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.&lt;/strong&gt; Science 319: 816-819, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18174396/&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;18174396&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1126/science.1151174&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="18174396">Rauch et al. (2008)</a> identified homozygosity for an 8752C-T transition in the PCNT gene, resulting in an arg2918-to-ter (R2918X) substitution. The children showed severe intrauterine growth retardation at birth with extreme short stature and microcephaly. Both had enlarged ventricles and both showed severe developmental delay. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18174396" 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>.0009&nbsp;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, GLN1280HIS
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs1569239749 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1569239749;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=rs1569239749" 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=rs1569239749" 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=RCV000023498" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000023498" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000023498</a>
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<p>In a patient with the diagnosis of Seckel syndrome (see <a href="/entry/210600">210600</a>), <a href="#14" class="mim-tip-reference" title="Willems, M., Genevieve, D., Borck, G., Baumann, C., Baujat, G., Bieth, E., Edery, P., Farra, C., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Lyonnet, S., Martin-Coignard, D., Mathieu, M., Thauvin-Robinet, C., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V. &lt;strong&gt;Molecular analysis of pericentrin gene (PCNT) in a series of 24 Seckel/microcephalic osteodysplastic primordial dwarfism type II (MOPD II) families.&lt;/strong&gt; J. Med. Genet. 47: 797-802, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19643772/&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;19643772&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.2009.067298&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="19643772">Willems et al. (2010)</a> identified homozygosity for a 3840G-C transversion affecting the last base of exon 19 of the PCNT gene, resulting in an apparent missense mutation, gln1280-to-his (Q2280H). The mutation was predicted to alter splicing. This was confirmed by sequence analysis of RT-PCR products which demonstrated exon 19 skipping, predictive of a premature termination of translation (Pro1204GlyfsTer11). The clinical analysis of this patient showed that she presented minor skeletal changes and clinical features compatible with the diagnosis of type II microcephalic osteodysplastic primordial dwarfism (MOPD2; <a href="/entry/210720">210720</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19643772" 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>.0010&nbsp;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, 3-BP DEL, 9460AAG
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs2148093442 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs2148093442;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=rs2148093442" 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=rs2148093442" 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=RCV000023499" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000023499" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000023499</a>
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<p>For discussion of the 3-bp deletion in the PCNT gene (9460delAAG) that was found in compound heterozygous state in a brother and sister with features of microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>) by <a href="#8" class="mim-tip-reference" title="Kantaputra, P., Tanpaiboon, P., Porntaveetus, T., Ohazama, A., Sharpe, P., Rauch, A., Hussadaloy, A., Thiel, C. T. &lt;strong&gt;The smallest teeth in the world are caused my mutations in the PCNT gene.&lt;/strong&gt; Am. J. Med. Genet. 155A: 1398-1403, 2011.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21567919/&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;21567919&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.33984&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="21567919">Kantaputra et al. (2011)</a>, see <a href="#0004">605925.0004</a>. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21567919" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>.0011&nbsp;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, GLU1154TER
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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> rs387906928 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs387906928;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/rs387906928?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=rs387906928" 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=rs387906928" 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=RCV000023500 OR RCV003556077" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000023500, RCV003556077" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000023500...</a>
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<p>In male and female third cousins with features of microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>) as well as extreme microdontia and alveolar bone hypoplasia, originally reported by <a href="#6" class="mim-tip-reference" title="Kantaputra, P. N., Tanpaiboon, P., Unachak, K., Praphanphoj, V. &lt;strong&gt;Microcephalic osteodysplastic primordial dwarfism with severe microdontia and skin anomalies: confirmation of a new syndrome.&lt;/strong&gt; Am. J. Med. Genet. 130A: 181-190, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15372530/&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;15372530&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.30079&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="15372530">Kantaputra et al. (2004)</a>, <a href="#8" class="mim-tip-reference" title="Kantaputra, P., Tanpaiboon, P., Porntaveetus, T., Ohazama, A., Sharpe, P., Rauch, A., Hussadaloy, A., Thiel, C. T. &lt;strong&gt;The smallest teeth in the world are caused my mutations in the PCNT gene.&lt;/strong&gt; Am. J. Med. Genet. 155A: 1398-1403, 2011.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21567919/&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;21567919&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.33984&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="21567919">Kantaputra et al. (2011)</a> identified homozygosity for a 3460G-T transversion in exon 17 of the PCNT gene, resulting in a glu1154-to-ter (E1154X) substitution predicted to cause premature termination of the protein. The unaffected parents were each heterozygous for the mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=15372530+21567919" 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="0012" class="mim-anchor"></a>
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<strong>.0012&nbsp;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, 1-BP INS, 1527A
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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> rs1369869782 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1369869782;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/rs1369869782?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=rs1369869782" 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=rs1369869782" 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=RCV000033163" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000033163" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000033163</a>
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<p>In a 3-year-old Italian boy with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>), <a href="#10" class="mim-tip-reference" title="Piane, M., Della Monica, M., Piatelli, G., Lulli, P., Lonardo, F., Chessa, L., Scarano, G. &lt;strong&gt;Majewski osteodysplastic primordial dwarfism type II (MOPD II) syndrome previously diagnosed as Seckel syndrome: report of a novel mutation of the PCNT gene.&lt;/strong&gt; Am. J. Med. Genet. 149A: 2452-2456, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19839044/&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;19839044&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.33035&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="19839044">Piane et al. (2009)</a> identified homozygosity for a 1-bp insertion (1527_1528insA) in exon 10 of the PCNT gene, causing a frameshift predicted to result in a premature termination codon (Thr510fs). (The protein change was incorrectly published as Treo510fs.) His unaffected parents were heterozygous for the mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19839044" 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>.0013&nbsp;MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
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PCNT, IVS17AS, 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> rs755084205 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs755084205;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/rs755084205?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=rs755084205" 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=rs755084205" 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=RCV000758566" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000758566" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000758566</a>
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<p>In 2 unrelated patients from the Druze population in Israel with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; <a href="/entry/210720">210720</a>), <a href="#12" class="mim-tip-reference" title="Weiss, K., Ekhilevitch, N., Cohen, L., Bratman-Morag, S., Bello, R., Martinez, A. F., Hadid, Y., Shlush, L. I., Kurolap, A., Paperna, T., Mory, A., Baris, H. N., Muenke, M. &lt;strong&gt;Identification of a novel PCNT founder pathogenic variant in the Israeli Druze population.&lt;/strong&gt; Europ. J. Med. Genet. 63: 103643, 2020. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30922925/&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;30922925&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ejmg.2019.03.007&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="30922925">Weiss et al. (2020)</a> identified homozygosity for a G-A transition in the -1 position of intron 17 (c.3465-1G-A, NM_006031.5) of the PCNT gene. In patient 1 the mutation was identified by whole-exome sequencing, and in patient 2 it was identified by direct sequencing of the PCNT gene. The parents of patient 1 were mutation carriers. The c.3465-1G-A mutation was reported in heterozygous state in 4 individuals from South Asia in the gnomAD database (allele frequency of 0.0001) and was not present in the Greater Middle East Variome Project database. Sequencing of lymphoblastoid cell cDNA from patient 1 and his parents revealed a 2-bp deletion at the beginning of exon 18 due to the activation of a cryptic splice site, resulting in a frameshift and premature termination (Ala1157ProfsTer36). <a href="#12" class="mim-tip-reference" title="Weiss, K., Ekhilevitch, N., Cohen, L., Bratman-Morag, S., Bello, R., Martinez, A. F., Hadid, Y., Shlush, L. I., Kurolap, A., Paperna, T., Mory, A., Baris, H. N., Muenke, M. &lt;strong&gt;Identification of a novel PCNT founder pathogenic variant in the Israeli Druze population.&lt;/strong&gt; Europ. J. Med. Genet. 63: 103643, 2020. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30922925/&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;30922925&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ejmg.2019.03.007&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="30922925">Weiss et al. (2020)</a> concluded that this is a founder mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30922925" 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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<a id="1" class="mim-anchor"></a>
<a id="Chen1996" class="mim-anchor"></a>
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Chen, H., Gos, A., Morris, M. A., Antonarakis, S. E.
<strong>Localization of a human homolog of the mouse pericentrin gene (PCNT) to chromosome 21qter.</strong>
Genomics 35: 620-624, 1996.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8812505/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8812505</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8812505" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1006/geno.1996.0411" target="_blank">Full Text</a>]
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<a id="Flory2000" class="mim-anchor"></a>
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Flory, M. R., Moser, M. J., Monnat, R. J., Jr., Davis, T. N.
<strong>Identification of a human centrosomal calmodulin-binding protein that shares homology with pericentrin.</strong>
Proc. Nat. Acad. Sci. 97: 5919-5923, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10823944/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10823944</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=10823944[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=10823944" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1073/pnas.97.11.5919" target="_blank">Full Text</a>]
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<a id="Graser2007" class="mim-anchor"></a>
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Graser, S., Stierhof, Y.-D., Lavoie, S. B., Gassner, O. S., Lamla, S., Le Clech, M., Nigg, E. A.
<strong>Cep164, a novel centriole appendage protein required for primary cilium formation.</strong>
J. Cell Biol. 179: 321-330, 2007.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/17954613/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">17954613</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=17954613[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=17954613" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1083/jcb.200707181" target="_blank">Full Text</a>]
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<a id="Graser2007" class="mim-anchor"></a>
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Graser, S., Stierhof, Y.-D., Nigg, E. A.
<strong>Cep68 and Cep215 (Cdk5rap2) are required for centrosome cohesion.</strong>
J. Cell. Sci. 120: 4321-4331, 2007.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18042621/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18042621</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18042621" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1242/jcs.020248" target="_blank">Full Text</a>]
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<a id="Griffith2008" class="mim-anchor"></a>
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Griffith, E., Walker, S., Martin, C.-A., Vagnarelli, P., Stiff, T., Vernay, B., Al Sanna, N., Saggar, A., Hamel, B., Earnshaw, W. C., Jeggo, P. A., Jackson, A. P., O'Driscoll, M.
<strong>Mutations in pericentrin cause Seckel syndrome with defective ATR-dependent DNA damage signaling.</strong>
Nature Genet. 40: 232-236, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18157127/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18157127</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=18157127[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=18157127" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/ng.2007.80" target="_blank">Full Text</a>]
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<a id="Kantaputra2004" class="mim-anchor"></a>
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Kantaputra, P. N., Tanpaiboon, P., Unachak, K., Praphanphoj, V.
<strong>Microcephalic osteodysplastic primordial dwarfism with severe microdontia and skin anomalies: confirmation of a new syndrome.</strong>
Am. J. Med. Genet. 130A: 181-190, 2004.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/15372530/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">15372530</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15372530" 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.30079" target="_blank">Full Text</a>]
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<a id="Kantaputra2002" class="mim-anchor"></a>
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Kantaputra, P. N.
<strong>Apparently new osteodysplastic and primordial short stature with severe microdontia, opalescent teeth, and rootless molars in two siblings.</strong>
Am. J. Med. Genet. 111: 420-428, 2002.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12210304/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12210304</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12210304" 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.10589" target="_blank">Full Text</a>]
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<a id="Kantaputra2011" class="mim-anchor"></a>
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Kantaputra, P., Tanpaiboon, P., Porntaveetus, T., Ohazama, A., Sharpe, P., Rauch, A., Hussadaloy, A., Thiel, C. T.
<strong>The smallest teeth in the world are caused my mutations in the PCNT gene.</strong>
Am. J. Med. Genet. 155A: 1398-1403, 2011.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/21567919/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">21567919</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21567919" 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.33984" target="_blank">Full Text</a>]
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<a id="Li2001" class="mim-anchor"></a>
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Li, Q., Hansen, D., Killilea, A., Joshi, H. C., Palazzo, R. E., Balczon, R.
<strong>Kendrin/pericentrin-B, a centrosome protein with homology to pericentrin that complexes with PCM-1.</strong>
J. Cell. Sci. 114: 797-809, 2001.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/11171385/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">11171385</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11171385" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1242/jcs.114.4.797" target="_blank">Full Text</a>]
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<a id="Piane2009" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Piane, M., Della Monica, M., Piatelli, G., Lulli, P., Lonardo, F., Chessa, L., Scarano, G.
<strong>Majewski osteodysplastic primordial dwarfism type II (MOPD II) syndrome previously diagnosed as Seckel syndrome: report of a novel mutation of the PCNT gene.</strong>
Am. J. Med. Genet. 149A: 2452-2456, 2009.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/19839044/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">19839044</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19839044" 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.33035" target="_blank">Full Text</a>]
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<a id="Rauch2008" class="mim-anchor"></a>
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Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others.
<strong>Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.</strong>
Science 319: 816-819, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18174396/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18174396</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18174396" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1126/science.1151174" target="_blank">Full Text</a>]
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<a id="12" class="mim-anchor"></a>
<a id="Weiss2020" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Weiss, K., Ekhilevitch, N., Cohen, L., Bratman-Morag, S., Bello, R., Martinez, A. F., Hadid, Y., Shlush, L. I., Kurolap, A., Paperna, T., Mory, A., Baris, H. N., Muenke, M.
<strong>Identification of a novel PCNT founder pathogenic variant in the Israeli Druze population.</strong>
Europ. J. Med. Genet. 63: 103643, 2020. Note: Electronic Article.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/30922925/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">30922925</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30922925" 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.ejmg.2019.03.007" target="_blank">Full Text</a>]
</p>
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<a id="13" class="mim-anchor"></a>
<a id="Willems2008" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Willems, M., Genevieve, D., Borck, G., Baujat, G., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V.
<strong>Pericentrin molecular analysis in 22 Seckel/MOPDII patients. (Abstract)</strong>
58th Annual Meeting, American Society of Human Genetics, Philadelphia 2008. P. 91.
</p>
</div>
</li>
<li>
<a id="14" class="mim-anchor"></a>
<a id="Willems2010" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Willems, M., Genevieve, D., Borck, G., Baumann, C., Baujat, G., Bieth, E., Edery, P., Farra, C., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Lyonnet, S., Martin-Coignard, D., Mathieu, M., Thauvin-Robinet, C., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V.
<strong>Molecular analysis of pericentrin gene (PCNT) in a series of 24 Seckel/microcephalic osteodysplastic primordial dwarfism type II (MOPD II) families.</strong>
J. Med. Genet. 47: 797-802, 2010.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/19643772/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">19643772</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19643772" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1136/jmg.2009.067298" target="_blank">Full Text</a>]
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<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Hilary J. Vernon - updated : 02/02/2021
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Patricia A. Hartz - updated : 3/31/2016<br>Marla J. F. O'Neill - updated : 2/21/2013<br>Patricia A. Hartz - updated : 10/3/2012<br>Marla J. F. O'Neill - updated : 10/20/2011<br>Nara Sobreira - updated : 2/17/2011<br>Carol A. Bocchini - updated : 11/17/2008<br>Ada Hamosh - updated : 2/27/2008<br>Paul J. Converse - updated : 5/25/2001
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<a id="creationDate" class="mim-anchor"></a>
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Creation Date:
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Victor A. McKusick : 5/11/2001
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alopez : 05/08/2024
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carol : 02/03/2021<br>carol : 02/02/2021<br>carol : 04/27/2018<br>carol : 10/05/2016<br>alopez : 06/09/2016<br>mgross : 3/31/2016<br>mgross : 3/31/2016<br>alopez : 9/15/2015<br>mcolton : 8/18/2015<br>carol : 9/16/2013<br>carol : 8/13/2013<br>tpirozzi : 7/12/2013<br>carol : 2/26/2013<br>carol : 2/21/2013<br>mgross : 10/4/2012<br>terry : 10/3/2012<br>carol : 10/20/2011<br>carol : 2/17/2011<br>terry : 2/17/2011<br>carol : 11/11/2010<br>carol : 12/9/2008<br>carol : 11/17/2008<br>carol : 2/27/2008<br>carol : 2/27/2008<br>carol : 2/26/2008<br>carol : 7/17/2001<br>carol : 5/25/2001<br>carol : 5/11/2001
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<h3>
<span class="mim-font">
<strong>*</strong> 605925
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<h3>
<span class="mim-font">
PERICENTRIN; PCNT
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<span class="mim-font">
<em>Alternative titles; symbols</em>
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<h4>
<span class="mim-font">
KENDRIN; KEN<br />
PERICENTRIN B<br />
PERICENTRIN 2, FORMERLY; PCNT2, FORMERLY
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<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: PCNT</em></strong>
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<p>
<span class="mim-text-font">
<strong>SNOMEDCT:</strong> 1208348002; &nbsp;
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<span class="mim-text-font">
<strong>
<em>
Cytogenetic location: 21q22.3
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : 21:46,324,156-46,445,769 </span>
</em>
</strong>
<span class="small">(from NCBI)</span>
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<h4>
<span class="mim-font">
<strong>Gene-Phenotype Relationships</strong>
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<table class="table table-bordered table-condensed small mim-table-padding">
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<th>
Location
</th>
<th>
Phenotype
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Phenotype <br /> MIM number
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Inheritance
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Phenotype <br /> mapping key
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<td rowspan="1">
<span class="mim-font">
21q22.3
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<td>
<span class="mim-font">
Microcephalic osteodysplastic primordial dwarfism, type II
</span>
</td>
<td>
<span class="mim-font">
210720
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<td>
<span class="mim-font">
Autosomal recessive
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<span class="mim-font">
3
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<h4>
<span class="mim-font">
<strong>TEXT</strong>
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<span class="mim-font">
<strong>Cloning and Expression</strong>
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<span class="mim-text-font">
<p>Eukaryotic chromosome segregation depends on mitotic spindle apparatus, a bipolar array of microtubules nucleated from centrosomes. Centrosomal microtubule nucleation requires attachment of gamma-tubulin (TUBG1; 191135) ring complexes to a salt-insoluble centrosomal core. In budding yeast, this attachment is provided by the coiled-coil protein Spc110p, which links the yeast gamma-tubulin complex to the core of the yeast centrosome.</p><p>Flory et al. (2000) showed that kendrin is a human homolog of yeast Spc110p. They identified kendrin by homology of its C-terminal calmodulin-binding site with that of Spc110p. The N-terminal regions of kendrin share significant sequence homology with pericentrin, a centrosome component known to interact with gamma-tubulin. (It was later determined that kendrin and pericentrin are identical.) Kendrin localizes specifically to centrosomes throughout the cell cycle. In mitotic human breast cancer cells containing abundant centrosome-like structures, Flory et al. (2000) found kendrin only at centrosomes associated with spindle microtubules. </p><p>By screening a human fetal liver cDNA expression library with anti-centrosome serum, followed by 5-prime RACE and rescreening a cDNA library with the RACE product, Li et al. (2001) isolated a cDNA encoding kendrin, which they called pericentrin-B because of its high sequence identity with pericentrin, then thought to be a separate protein. Immunofluorescence microscopy demonstrated that kendrin is expressed in centrosomes and is an essential component of the pericentriolar material (PCM). Immunoblot analysis showed that kendrin is expressed as a greater than 350-kD protein. Sequence analysis predicted that the 3,321-amino acid protein contains a large N-terminal coiled-coil domain of approximately 1,500 residues and a smaller C-terminal coiled-coil domain of approximately 500 amino acids. Both coiled-coil domains are flanked by non-coiled ends. Immunoprecipitation and immunoblot analysis indicated that kendrin complexes with PCM1 (600299) but not with gamma-tubulin. Functional analysis suggested that kendrin and PCM1 activities are not essential for the microtubule nucleation process. </p><p>Kantaputra et al. (2011) performed in situ hybridization analysis of lower molar tooth expression in wildtype mice, and observed that the first Pcnt signals were derived from tooth-presumptive epithelium at embryonic day 9.5. Pcnt was expressed in the thickened tooth epithelium and mesenchyme at E12.5, in the bud epithelium at embryonic day 13.5, and in the cap epithelium and dental papillae at embryonic day 14.5, with weak expression in both ameloblasts and odontoblasts at embryonic day 18.5. </p>
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<span class="mim-font">
<strong>Mapping</strong>
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</h4>
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<span class="mim-text-font">
<p>By PCR amplification, Southern blot analysis, and fluorescence in situ hybridization, Chen et al. (1996) mapped the kendrin (PCNT) gene to 21q between PFKL (171860) at 21q22.3 and 21qter. </p>
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<h4>
<span class="mim-font">
<strong>Gene Function</strong>
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<p>Rauch et al. (2008) demonstrated that absence of PCNT results in disorganized mitotic spindles and missegregation of chromosomes. </p><p>Using small interfering RNA (siRNA), Graser et al. (2007) found that depletion of pericentrin, CEP290 (610142), or CEP164 (614848) in human retinal pigment epithelial cells prevented serum starvation-induced formation of a primary cilium. </p><p>Using an siRNA screen, Graser et al. (2007) found that depletion of CNAP1 (CEP2; 609689), rootletin (CROCC; 615776), pericentrin, CEP68 (616889), or CEP215 (CDK5RAP2; 608201) reduced centrosome cohesion and caused centrosome splitting in U2OS, A549, and RPE1 cells. Depletion of CNAP1 and rootletin produced the most severe phenotype. Depletion of pericentrin caused loss of CEP215 from centrioles, but depletion of CEP215 had no effect on pericentrin. Graser et al. (2007) concluded that CEP215 and pericentrin functionally interact and influence centrosome cohesion through an indirect mechanism independent of CNAP1, rootletin, and CEP68. </p>
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<div>
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<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
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<p>Individuals with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720) have an average birth weight of less that 1500 g at term, an average adult height of 100 cm, a brain size comparable to that of a 3-month old but usually with near-normal intelligence, and a variety of associated bone abnormalities. Rauch et al. (2008) identified 29 different homozygous or compound heterozygous mutations in the PCNT gene in 25 patients with MOPD2. There were 12 stop mutations and 17 frameshift mutations (4 splice site mutations, 2 small insertions, 2 small deletions, and 1 exon deletion). Two mutations occurred twice in unrelated patients, namely, R1923X (605925.0004) and 841insG (605925.0005). In contrast, they identified no PCNT mutations in 27 patients with a clinical diagnosis of MOPD1 (210710), MOPD3 (see 210710), Seckel syndrome (see 210600), or unclassified growth retardation syndromes. Absence of the PCNT protein was confirmed by Western blot analysis of lymphoblastoid cell lines from 2 patients, and both investigated heterozygous parents of 1 of these patients showed reduced protein levels in lymphoblasts. Rauch et al. (2008) suggested that this may explain their finding of significant reduction of the mean height of heterozygous MOPD II parents. </p><p>Griffith et al. (2008) performed a SNP-microarray genomewide homozygosity scan on 2 consanguineous families from the Middle East that included individuals clinically diagnosed with Seckel syndrome and showing cellular evidence of defective ATR signaling (601215). They mapped the disorder in these families to chromosome 21q22.3 in the region of the PCNT gene. By sequencing the 47 coding exons of the PCNT gene in affected individuals from the 2 Middle Eastern families, they identified homozygous truncating mutations in both: E220X (605925.0001) in one and S629fs (605925.0002) in the other. From screening of additional cases, they identified another truncating mutation in the PCNT gene (605925.0003) in a consanguineous Moroccan family. </p><p>Willems et al. (2008) noted that mutations in the PCNT gene had been identified in 28 patients, including the 25 with MOPD II reported by Rauch et al. (2008) and the 3 diagnosed with Seckel syndrome reported by Griffith et al. (2008). They performed direct sequencing of PCNT in 21 patients and identified 9 distinct mutations in 4 of the 16 patients diagnosed with Seckel syndrome and in all 5 patients diagnosed with MOPD II. Clinical analysis of the 4 Seckel syndrome patients with PCNT mutations showed that all presented minor skeletal changes and a severe growth retardation more suggestive of MOPD II. Willems et al. (2008) concluded that, despite variable clinical severity, MOPD II is a genetically homogeneous condition due to loss of function of pericentrin. Thus, the patients reported by Griffith et al. (2008) with mutations in the PCNT gene can be considered to have MOPD II. In their full report, in which additional patients were studied, Willems et al. (2010) identified a total of 13 distinct mutations in the PCNT gene, including one in another patient diagnosed with Seckel syndrome (605925.0009); this patient also had minor skeletal changes and clinical features compatible with a diagnosis of MOPD II. </p><p>In a 3-year-old Italian boy who was diagnosed at birth with Seckel syndrome but in whom the diagnosis was later revised to MOPD II, Piane et al. (2009) identified homozygosity for a 1-bp insertion in the PCNT gene (605925.0012). Noting the phenotypic overlap between Seckel syndrome and MOPD II, the authors emphasized the need for reevaluation in patients since certain clinical features may not be evident at birth; they considered PCNT mutations to be the hallmark for a correct diagnosis of MOPD II. </p><p>In 4 patients from 2 unrelated Thai pedigrees with features of MOPD II as well as extreme microdontia and alveolar bone hypoplasia, Kantaputra et al. (2011) identified homozygosity or compound heterozygosity for mutations in the PCNT gene (605925.0004; 605925.0010-605925.0011). </p><p>In 2 unrelated patients with MOPD II from the Druze population in Israel, Weiss et al. (2020) identified homozygosity for a splice site mutation in the PCNT gene (605925.0013). The mutation was reported in heterozygous state in 4 individuals from South Asia in the gnomAD database (allele frequency of 0.0001) and was not present in the Greater Middle East Variome Project database. Screening of 150 DNA samples from different paternal households in the Druze population revealed 5 mutation carriers, resulting in a carrier rate of 1:30. The affected patients and carriers were from 7 different Druze villages, leading Weiss et al. (2020) to conclude that the mutation was a founder mutation and not a private mutation related to a certain village or family. Weiss et al. (2020) identified a haplotype shared by the 2 patients and an unrelated carrier which was localized to 450 kb in the subtelomeric region of chromosome 21q22.3. </p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>13 Selected Examples):</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, GLU220TER
<br />
SNP: rs119479061,
ClinVar: RCV000004968
</span>
</div>
<div>
<span class="mim-text-font">
<p>In affected male and female members of a consanguineous Saudi Arabian family who had been diagnosed with Seckel syndrome (see 210600), Griffith et al. (2008) identified homozygosity for a glu220-to-ter (E220X) mutation in the PCNT gene. Both patients were born at 33 weeks' gestation and were small at birth. One of them had diabetes mellitus. The parents in each case were heterozygous for the mutation, which was not found in over 200 control alleles. Willems et al. (2008) later reported that patients with mutations in the PCNT gene have type II microcephalic osteodysplastic primordial dwarfism (MOPD2; 210720), a clinically variable but genetically homogeneous condition. </p>
</span>
</div>
<div>
<br />
</div>
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<div>
<div>
<h4>
<span class="mim-font">
<strong>.0002 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, SER629FS
<br />
SNP: rs397509366,
gnomAD: rs397509366,
ClinVar: RCV000004969
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a female diagnosed with Seckel syndrome (see 210600), born of first-cousin parents in Kuwait, Griffith et al. (2008) identified homozygosity for a single-basepair deletion in exon 12 of the PCNT gene that led to a frameshift which was predicted to result in premature protein termination after an additional 65 amino acids (S629fs). The parents were heterozygous for the mutation, which was not found in over 200 control alleles. Willems et al. (2008) later reported that patients with mutations in the PCNT gene have type II microcephalic osteodysplastic primordial dwarfism (MOPD2; 210720), a clinically variable but genetically homogeneous condition. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0003 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, CYS1190FS
<br />
SNP: rs397514033,
ClinVar: RCV000004970
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a male diagnosed with Seckel syndrome (see 210600), born of first-cousin parents in Morocco, Griffith et al. (2008) identified homozygosity for a 1-bp insertion in exon 18 of the PCNT gene, resulting in a frameshift at codon 1190 (C1190fs). The parents were heterozygous for the mutation, which was not found in over 200 control alleles. Willems et al. (2008) later reported that patients with mutations in the PCNT gene have type II microcephalic osteodysplastic primordial dwarfism (MOPD2; 210720), a clinically variable but genetically homogeneous condition. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0004 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, ARG1923TER
<br />
SNP: rs119479062,
gnomAD: rs119479062,
ClinVar: RCV000004971, RCV001851658
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 patients with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720) from consanguineous but unrelated families, one of Omani descent and the other of Pakistani descent, Rauch et al. (2008) identified homozygosity for a 5767C-T transition in the PCNT gene, resulting in an arg1923-to-ter (R1923X) substitution. The patients, aged 5.5 and 1.5 years, were born prematurely, one at 34 and the other at 32 weeks' gestation, with severe intrauterine growth retardation. Both had severe short stature, extreme microcephaly, and mild developmental delay. </p><p>In a Thai brother and sister with features of MOPD2 as well as extreme microdontia and alveolar bone hypoplasia, originally reported by Kantaputra (2002), Kantaputra et al. (2011) identified compound heterozygosity for the R1923X mutation in the PCNT gene and a 3-bp deletion (9460delAAG; 605925.0010) in exon 43, predicted to result in deletion of lys315. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0005 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, 1-BP INS, 841G
<br />
SNP: rs1601795448,
ClinVar: RCV000004972
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 presumably unrelated Turkish patients with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720), one from a consanguineous and the other from an apparently nonconsanguineous union, Rauch et al. (2008) identified homozygosity for a 1-bp insertion, 841_842insG, resulting in a frameshift at arg281 and a termination codon at position 327 (Arg281fsTer327). The patient from the nonconsanguineous union was born at 35 weeks' gestation weighing 1300 g, and the other patient was born at 40 weeks' gestation weighing 1320 g. The patients, aged 12 and 5.5 years, had severe short stature and extreme microcephaly with mild developmental delay. Both also had multiple brain aneurysms and moyamoya disease (see 252350). Further analyses suggested that this mutation was transmitted through an unknown common ancestor because both patients were identical for all polymorphic sites identified within the PCNT region. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0006 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, GLU1037TER
<br />
SNP: rs119479063,
gnomAD: rs119479063,
ClinVar: RCV000004973, RCV000351291
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a 12-year-old Turkish girl with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720), whose parents were consanguineous, Rauch et al. (2008) identified homozygosity for a 3109G-T transversion in the PCNT gene, resulting in a glu1037-to-ter (E1037X) substitution. The child was born at 34 weeks' gestation weighing only 880 g. She had severe short stature, extreme microcephaly, multiple brain aneurysms, moyamoya disease, and mild developmental delay. </p><p>In a male patient from Turkey with the diagnosis of MOPD2, Willems et al. (2010) identified homozygosity for the E1037X mutation. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0007 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, 486-BP DEL, NT84
<br />
ClinVar: RCV000004974
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a 12.5-year-old girl of consanguineous Kurdish descent with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720), Rauch et al. (2008) identified homozygosity for a large deletion extending from IVS30 at nucleotide 84 to IVS34 at nucleotide 569, which resulted in a frameshift leading to a premature termination codon at amino acid 2317 (IVS30-84_IVS31-569del). The child was born at term weighing 1200 g. She was -9 SD in height and -8.7 SD for head circumference. She had moyamoya disease and no developmental delay. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0008 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, ARG2918TER
<br />
SNP: rs119479064,
ClinVar: RCV000004975, RCV003555918
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 children with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720), aged 6.5 and 5 years, in a consanguineous Dutch family, Rauch et al. (2008) identified homozygosity for an 8752C-T transition in the PCNT gene, resulting in an arg2918-to-ter (R2918X) substitution. The children showed severe intrauterine growth retardation at birth with extreme short stature and microcephaly. Both had enlarged ventricles and both showed severe developmental delay. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0009 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, GLN1280HIS
<br />
SNP: rs1569239749,
ClinVar: RCV000023498
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a patient with the diagnosis of Seckel syndrome (see 210600), Willems et al. (2010) identified homozygosity for a 3840G-C transversion affecting the last base of exon 19 of the PCNT gene, resulting in an apparent missense mutation, gln1280-to-his (Q2280H). The mutation was predicted to alter splicing. This was confirmed by sequence analysis of RT-PCR products which demonstrated exon 19 skipping, predictive of a premature termination of translation (Pro1204GlyfsTer11). The clinical analysis of this patient showed that she presented minor skeletal changes and clinical features compatible with the diagnosis of type II microcephalic osteodysplastic primordial dwarfism (MOPD2; 210720). </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0010 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, 3-BP DEL, 9460AAG
<br />
SNP: rs2148093442,
ClinVar: RCV000023499
</span>
</div>
<div>
<span class="mim-text-font">
<p>For discussion of the 3-bp deletion in the PCNT gene (9460delAAG) that was found in compound heterozygous state in a brother and sister with features of microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720) by Kantaputra et al. (2011), see 605925.0004. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0011 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, GLU1154TER
<br />
SNP: rs387906928,
gnomAD: rs387906928,
ClinVar: RCV000023500, RCV003556077
</span>
</div>
<div>
<span class="mim-text-font">
<p>In male and female third cousins with features of microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720) as well as extreme microdontia and alveolar bone hypoplasia, originally reported by Kantaputra et al. (2004), Kantaputra et al. (2011) identified homozygosity for a 3460G-T transversion in exon 17 of the PCNT gene, resulting in a glu1154-to-ter (E1154X) substitution predicted to cause premature termination of the protein. The unaffected parents were each heterozygous for the mutation. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0012 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, 1-BP INS, 1527A
<br />
SNP: rs1369869782,
gnomAD: rs1369869782,
ClinVar: RCV000033163
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a 3-year-old Italian boy with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720), Piane et al. (2009) identified homozygosity for a 1-bp insertion (1527_1528insA) in exon 10 of the PCNT gene, causing a frameshift predicted to result in a premature termination codon (Thr510fs). (The protein change was incorrectly published as Treo510fs.) His unaffected parents were heterozygous for the mutation. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0013 &nbsp; MICROCEPHALIC OSTEODYSPLASTIC PRIMORDIAL DWARFISM, TYPE II</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
PCNT, IVS17AS, G-A, -1
<br />
SNP: rs755084205,
gnomAD: rs755084205,
ClinVar: RCV000758566
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 2 unrelated patients from the Druze population in Israel with microcephalic osteodysplastic primordial dwarfism type II (MOPD2; 210720), Weiss et al. (2020) identified homozygosity for a G-A transition in the -1 position of intron 17 (c.3465-1G-A, NM_006031.5) of the PCNT gene. In patient 1 the mutation was identified by whole-exome sequencing, and in patient 2 it was identified by direct sequencing of the PCNT gene. The parents of patient 1 were mutation carriers. The c.3465-1G-A mutation was reported in heterozygous state in 4 individuals from South Asia in the gnomAD database (allele frequency of 0.0001) and was not present in the Greater Middle East Variome Project database. Sequencing of lymphoblastoid cell cDNA from patient 1 and his parents revealed a 2-bp deletion at the beginning of exon 18 due to the activation of a cryptic splice site, resulting in a frameshift and premature termination (Ala1157ProfsTer36). Weiss et al. (2020) concluded that this is a founder mutation. </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">
Chen, H., Gos, A., Morris, M. A., Antonarakis, S. E.
<strong>Localization of a human homolog of the mouse pericentrin gene (PCNT) to chromosome 21qter.</strong>
Genomics 35: 620-624, 1996.
[PubMed: 8812505]
[Full Text: https://doi.org/10.1006/geno.1996.0411]
</p>
</li>
<li>
<p class="mim-text-font">
Flory, M. R., Moser, M. J., Monnat, R. J., Jr., Davis, T. N.
<strong>Identification of a human centrosomal calmodulin-binding protein that shares homology with pericentrin.</strong>
Proc. Nat. Acad. Sci. 97: 5919-5923, 2000.
[PubMed: 10823944]
[Full Text: https://doi.org/10.1073/pnas.97.11.5919]
</p>
</li>
<li>
<p class="mim-text-font">
Graser, S., Stierhof, Y.-D., Lavoie, S. B., Gassner, O. S., Lamla, S., Le Clech, M., Nigg, E. A.
<strong>Cep164, a novel centriole appendage protein required for primary cilium formation.</strong>
J. Cell Biol. 179: 321-330, 2007.
[PubMed: 17954613]
[Full Text: https://doi.org/10.1083/jcb.200707181]
</p>
</li>
<li>
<p class="mim-text-font">
Graser, S., Stierhof, Y.-D., Nigg, E. A.
<strong>Cep68 and Cep215 (Cdk5rap2) are required for centrosome cohesion.</strong>
J. Cell. Sci. 120: 4321-4331, 2007.
[PubMed: 18042621]
[Full Text: https://doi.org/10.1242/jcs.020248]
</p>
</li>
<li>
<p class="mim-text-font">
Griffith, E., Walker, S., Martin, C.-A., Vagnarelli, P., Stiff, T., Vernay, B., Al Sanna, N., Saggar, A., Hamel, B., Earnshaw, W. C., Jeggo, P. A., Jackson, A. P., O'Driscoll, M.
<strong>Mutations in pericentrin cause Seckel syndrome with defective ATR-dependent DNA damage signaling.</strong>
Nature Genet. 40: 232-236, 2008.
[PubMed: 18157127]
[Full Text: https://doi.org/10.1038/ng.2007.80]
</p>
</li>
<li>
<p class="mim-text-font">
Kantaputra, P. N., Tanpaiboon, P., Unachak, K., Praphanphoj, V.
<strong>Microcephalic osteodysplastic primordial dwarfism with severe microdontia and skin anomalies: confirmation of a new syndrome.</strong>
Am. J. Med. Genet. 130A: 181-190, 2004.
[PubMed: 15372530]
[Full Text: https://doi.org/10.1002/ajmg.a.30079]
</p>
</li>
<li>
<p class="mim-text-font">
Kantaputra, P. N.
<strong>Apparently new osteodysplastic and primordial short stature with severe microdontia, opalescent teeth, and rootless molars in two siblings.</strong>
Am. J. Med. Genet. 111: 420-428, 2002.
[PubMed: 12210304]
[Full Text: https://doi.org/10.1002/ajmg.10589]
</p>
</li>
<li>
<p class="mim-text-font">
Kantaputra, P., Tanpaiboon, P., Porntaveetus, T., Ohazama, A., Sharpe, P., Rauch, A., Hussadaloy, A., Thiel, C. T.
<strong>The smallest teeth in the world are caused my mutations in the PCNT gene.</strong>
Am. J. Med. Genet. 155A: 1398-1403, 2011.
[PubMed: 21567919]
[Full Text: https://doi.org/10.1002/ajmg.a.33984]
</p>
</li>
<li>
<p class="mim-text-font">
Li, Q., Hansen, D., Killilea, A., Joshi, H. C., Palazzo, R. E., Balczon, R.
<strong>Kendrin/pericentrin-B, a centrosome protein with homology to pericentrin that complexes with PCM-1.</strong>
J. Cell. Sci. 114: 797-809, 2001.
[PubMed: 11171385]
[Full Text: https://doi.org/10.1242/jcs.114.4.797]
</p>
</li>
<li>
<p class="mim-text-font">
Piane, M., Della Monica, M., Piatelli, G., Lulli, P., Lonardo, F., Chessa, L., Scarano, G.
<strong>Majewski osteodysplastic primordial dwarfism type II (MOPD II) syndrome previously diagnosed as Seckel syndrome: report of a novel mutation of the PCNT gene.</strong>
Am. J. Med. Genet. 149A: 2452-2456, 2009.
[PubMed: 19839044]
[Full Text: https://doi.org/10.1002/ajmg.a.33035]
</p>
</li>
<li>
<p class="mim-text-font">
Rauch, A., Thiel, C. T., Schindler, D., Wick, U., Crow, Y. J., Ekici, A. B., van Essen, A. J., Goecke, T. O., Al-Gazali, L., Chrzanowska, K. H., Zweier, C., Brunner, H. G., and 18 others.
<strong>Mutations in the pericentrin (PCNT) gene cause primordial dwarfism.</strong>
Science 319: 816-819, 2008.
[PubMed: 18174396]
[Full Text: https://doi.org/10.1126/science.1151174]
</p>
</li>
<li>
<p class="mim-text-font">
Weiss, K., Ekhilevitch, N., Cohen, L., Bratman-Morag, S., Bello, R., Martinez, A. F., Hadid, Y., Shlush, L. I., Kurolap, A., Paperna, T., Mory, A., Baris, H. N., Muenke, M.
<strong>Identification of a novel PCNT founder pathogenic variant in the Israeli Druze population.</strong>
Europ. J. Med. Genet. 63: 103643, 2020. Note: Electronic Article.
[PubMed: 30922925]
[Full Text: https://doi.org/10.1016/j.ejmg.2019.03.007]
</p>
</li>
<li>
<p class="mim-text-font">
Willems, M., Genevieve, D., Borck, G., Baujat, G., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V.
<strong>Pericentrin molecular analysis in 22 Seckel/MOPDII patients. (Abstract)</strong>
58th Annual Meeting, American Society of Human Genetics, Philadelphia 2008. P. 91.
</p>
</li>
<li>
<p class="mim-text-font">
Willems, M., Genevieve, D., Borck, G., Baumann, C., Baujat, G., Bieth, E., Edery, P., Farra, C., Gerard, M., Heron, D., Leheup, B., Le Merrer, M., Lyonnet, S., Martin-Coignard, D., Mathieu, M., Thauvin-Robinet, C., Verloes, A., Colleaux, L., Munnich, A., Cormier-Daire, V.
<strong>Molecular analysis of pericentrin gene (PCNT) in a series of 24 Seckel/microcephalic osteodysplastic primordial dwarfism type II (MOPD II) families.</strong>
J. Med. Genet. 47: 797-802, 2010.
[PubMed: 19643772]
[Full Text: https://doi.org/10.1136/jmg.2009.067298]
</p>
</li>
</ol>
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Hilary J. Vernon - updated : 02/02/2021<br>Patricia A. Hartz - updated : 3/31/2016<br>Marla J. F. O&#x27;Neill - updated : 2/21/2013<br>Patricia A. Hartz - updated : 10/3/2012<br>Marla J. F. O&#x27;Neill - updated : 10/20/2011<br>Nara Sobreira - updated : 2/17/2011<br>Carol A. Bocchini - updated : 11/17/2008<br>Ada Hamosh - updated : 2/27/2008<br>Paul J. Converse - updated : 5/25/2001
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