nih-gov/www.ncbi.nlm.nih.gov/omim/615848

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Entry
- #615848 - TUMOR PREDISPOSITION SYNDROME 3; TPDS3
- OMIM
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<span class="h4">#615848</span>
<br />
<strong>Table of Contents</strong>
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<li role="presentation">
<a href="#title"><strong>Title</strong></a>
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<li role="presentation">
<a href="#phenotypeMap"><strong>Phenotype-Gene Relationships</strong></a>
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<li role="presentation">
<a href="/clinicalSynopsis/615848"><strong>Clinical Synopsis</strong></a>
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<a href="/phenotypicSeries/PS155600"> <strong>Phenotypic Series</strong> </a>
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<a href="#text"><strong>Text</strong></a>
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<a href="#description">Description</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#clinicalFeatures">Clinical Features</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#inheritance">Inheritance</a>
</li>
<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
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<li role="presentation">
<a href="#references"><strong>References</strong></a>
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<a href="#contributors"><strong>Contributors</strong></a>
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<a href="#creationDate"><strong>Creation Date</strong></a>
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<div><a href="https://clinicaltrials.gov/search?cond=TUMOR PREDISPOSITION SYNDROME" class="mim-tip-hint" title="A registry of federally and privately supported clinical trials conducted in the United States and around the world." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Clinical Trials', 'domain': 'clinicaltrials.gov'})">Clinical Trials</a></div>
<div><a href="https://www.orpha.net/consor/cgi-bin/ClinicalLabs_Search_Simple.php?lng=EN&LnkId=3560&Typ=Pat" class="mim-tip-hint" title="A list of European laboratories that offer genetic testing." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'EuroGentest', 'domain': 'orpha.net'})">EuroGentest</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/books/NBK563529/" class="mim-tip-hint" title="Expert-authored, peer-reviewed descriptions of inherited disorders including the uses of genetic testing in diagnosis, management, and genetic counseling." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Gene Reviews', 'domain': 'ncbi.nlm.nih.gov'})">Gene Reviews</a></div>
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<div><a href="https://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&Expert=618" class="mim-tip-hint" title="European reference portal for information on rare diseases and orphan drugs." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'OrphaNet', 'domain': 'orpha.net'})">OrphaNet</a></div>
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<a href="#" class="mim-tip-icd" qtip_title="<strong>ICD+</strong>" qtip_text="
<strong>ORPHA:</strong> 618<br />
">ICD+</a>
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<span class="mim-font mim-tip-hint" title="Phenotype description, molecular basis known">
<span class="text-danger"><strong>#</strong></span>
615848
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<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
TUMOR PREDISPOSITION SYNDROME 3; TPDS3
</span>
</h3>
</div>
<div>
<br />
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<em>Alternative titles; symbols</em>
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</p>
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<div>
<h4>
<span class="mim-font">
LONG TELOMERE SYNDROME, POT1-RELATED<br />
MELANOMA, CUTANEOUS MALIGNANT, SUSCEPTIBILITY TO, 10; CMM10<br />
GLIOMA SUSCEPTIBILITY 9; GLM9
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<a id="phenotypeMap" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>Phenotype-Gene Relationships</strong>
</span>
</h4>
<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>
<th>
Gene/Locus
</th>
<th>
Gene/Locus <br /> MIM number
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/635?start=-3&limit=10&highlight=635">
7q31.33
</a>
</span>
</td>
<td>
<span class="mim-font">
Tumor predisposition syndrome 3
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615848"> 615848 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
POT1
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606478"> 606478 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/615848" class="btn btn-warning" role="button"> Clinical Synopsis </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-warning dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimClinicalSynopsisFold" onclick="ga('send', 'event', 'Unfurl', 'ClinicalSynopsis', 'omim.org')">
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&nbsp;
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<a href="/phenotypicSeries/PS155600" class="btn btn-info" role="button"> Phenotypic Series </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-info dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimPhenotypicSeriesFold" onclick="ga('send', 'event', 'Unfurl', 'PhenotypicSeries', 'omim.org')">
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<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/615848" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/615848" 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>
<p />
</div>
<div id="mimClinicalSynopsisFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small" style="margin: 5px">
<div>
<div>
<span class="h5 mim-font">
<strong> INHERITANCE </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Autosomal dominant <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/263681008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">263681008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/771269000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">771269000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0443147&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0443147</a>, <a href="https://bioportal.bioontology.org/search?q=C1867440&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1867440</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000006</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000006</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> NEOPLASIA </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Neoplasms, benign and malignant <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5883399&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5883399</a>]</span><br /> -
Clonal hematopoietic disorders <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5883854&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5883854</a>]</span><br /> -
Lymphoma <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1163043007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1163043007</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/188676008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">188676008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/118600007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">118600007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/C85.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">C85.9</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0024299&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0024299</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002665" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002665</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002665" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002665</a>]</span><br /> -
Leukemia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/93143009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">93143009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1162768007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1162768007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/C95" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">C95</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/C95.90" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">C95.90</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/C95.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">C95.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/208.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">208.9</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/208" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">208</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0023418&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0023418</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001909" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001909</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001909" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001909</a>]</span><br /> -
Melanoma <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1162635006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1162635006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/372244006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">372244006</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0796561&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0796561</a>, <a href="https://bioportal.bioontology.org/search?q=C0025202&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0025202</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002861" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002861</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002861" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002861</a>]</span><br /> -
Glioma <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/115240006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">115240006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/393564001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">393564001</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0017638&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0017638</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0009733" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0009733</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0009733" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0009733</a>]</span><br /> -
Epithelial tumors <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/118285006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">118285006</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1368683&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1368683</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0031492" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0031492</a>]</span><br /> -
Mesenchymal tumors <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1334699&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1334699</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> LABORATORY ABNORMALITIES </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Long telomeres <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5883398&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5883398</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> MISCELLANEOUS </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Age-dependent penetrance <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1835978&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1835978</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003831" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003831</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003831" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003831</a>]</span><br /> -
Adult onset (in most cases) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1853562&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1853562</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003581" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003581</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003581" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003581</a>]</span><br /> -
Genetic anticipation <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0600498&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0600498</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003743" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003743</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003743" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003743</a>]</span><br /> -
Incomplete penetrance <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1836598&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1836598</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003829" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003829</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003829" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003829</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> MOLECULAR BASIS </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Susceptibility conferred by mutation in the protection of telomeres 1 gene (POT1, <a href="/entry/606478#0001">606478.0001</a>)<br />
</span>
</div>
</div>
</div>
<div class="text-right">
<a href="#mimClinicalSynopsisFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
</div>
</div>
</div>
<div id="mimPhenotypicSeriesFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small">
<div class="row">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<h5>
Melanoma, cutaneous malignant
- <a href="/phenotypicSeries/PS155600">PS155600</a>
- 12 Entries
</h5>
</div>
</div>
<div class="row" style="margin-left: 0.125em; margin-right: 0.125em;">
<table class="table table-bordered table-condensed table-hover mim-table-padding">
<thead>
<tr>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Location</strong>
</th>
<th class="col-lg-5 col-md-5 col-sm-5 col-xs-6 text-nowrap">
<strong>Phenotype</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Inheritance</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Phenotype<br />mapping key</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Phenotype<br />MIM number</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Gene/Locus</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Gene/Locus<br />MIM number</strong>
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/6?start=-3&limit=10&highlight=6"> 1p36 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/155600"> {Melanoma, cutaneous malignant, 1} </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/155600"> 155600 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/155600"> CMM </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/155600"> 155600 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/752?start=-3&limit=10&highlight=752"> 1p22 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608035"> {Melanoma, cutaneous malignant, 4} </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608035"> 608035 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608035"> CMM4 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/608035"> 608035 </a>
</span>
</td>
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<span class="mim-font">
<a href="/geneMap/3/454?start=-3&limit=10&highlight=454"> 3p13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614456"> {Melanoma, cutaneous malignant, susceptibility to, 8} </a>
</span>
</td>
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<span class="mim-font">
</span>
</td>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/614456"> 614456 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/156845"> MITF </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/156845"> 156845 </a>
</span>
</td>
</tr>
<tr>
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<span class="mim-font">
<a href="/geneMap/5/22?start=-3&limit=10&highlight=22"> 5p15.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615134"> {Melanoma, cutaneous malignant, 9} </a>
</span>
</td>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/615134"> 615134 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/187270"> TERT </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/187270"> 187270 </a>
</span>
</td>
</tr>
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<span class="mim-font">
<a href="/geneMap/7/635?start=-3&limit=10&highlight=635"> 7q31.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615848"> Tumor predisposition syndrome 3 </a>
</span>
</td>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/615848"> 615848 </a>
</span>
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<span class="mim-font">
<a href="/entry/606478"> POT1 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/606478"> 606478 </a>
</span>
</td>
</tr>
<tr>
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<span class="mim-font">
<a href="/geneMap/7/742?start=-3&limit=10&highlight=742"> 7q34 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/155600"> Melanoma, malignant, somatic </a>
</span>
</td>
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<span class="mim-font">
</span>
</td>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/155600"> 155600 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/164757"> BRAF </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/164757"> 164757 </a>
</span>
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<span class="mim-font">
<a href="/geneMap/9/102?start=-3&limit=10&highlight=102"> 9p21.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/155601"> {Melanoma, cutaneous malignant, 2} </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/155601"> 155601 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600160"> CDKN2A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600160"> 600160 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/557?start=-3&limit=10&highlight=557"> 12q14.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609048"> {Melanoma, cutaneous malignant, 3} </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/609048"> 609048 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/123829"> CDK4 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/123829"> 123829 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/580?start=-3&limit=10&highlight=580"> 14q32.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613972"> {Melanoma, cutaneous malignant, 6} </a>
</span>
</td>
<td>
<span class="mim-font">
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613972"> 613972 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600675"> XRCC3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600675"> 600675 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/757?start=-3&limit=10&highlight=757"> 16q24.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613099"> {Melanoma, cutaneous malignant, 5} </a>
</span>
</td>
<td>
<span class="mim-font">
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613099"> 613099 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/155555"> MC1R </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/155555"> 155555 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/46?start=-3&limit=10&highlight=46"> 19p13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/155600"> Melanoma, malignant, somatic </a>
</span>
</td>
<td>
<span class="mim-font">
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/155600"> 155600 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602216"> STK11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602216"> 602216 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/176?start=-3&limit=10&highlight=176"> 20q11.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612263"> {Melanoma, cutaneous malignant, 7} </a>
</span>
</td>
<td>
<span class="mim-font">
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612263"> 612263 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612263"> CMM7 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612263"> 612263 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
<div class="text-right small">
<a href="#mimPhenotypicSeriesFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
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<div>
<br />
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<a id="text" class="mim-anchor"></a>
<h4 href="#mimTextFold" id="mimTextToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<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>
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<p>A number sign (#) is used with this entry because of evidence that tumor predisposition syndrome-3 (TPDS3) is caused by heterozygous germline mutation in the POT1 gene (<a href="/entry/606478">606478</a>) on chromosome 7q31.</p>
</span>
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<br />
</div>
</div>
<div>
<a id="description" class="mim-anchor"></a>
<h4 href="#mimDescriptionFold" id="mimDescriptionToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Description</strong>
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<span class="mim-text-font">
<p>Tumor predisposition syndrome-3 (TPDS3) is an autosomal dominant disorder characterized by an increased risk for the development of various types of benign and malignant neoplasms throughout life, with age-dependent penetrance. The age of tumor onset is usually in adulthood, although there is genetic anticipation and childhood onset has been reported. Affected individuals can develop neoplasms involving epithelial, mesenchymal, and neuronal tissues, as well as clonal hematopoietic syndromes, including lymphoid and myeloid cancers. The disorder is associated with elongated telomeres, which likely results in extended cellular longevity and age-associated accumulation of somatic driver mutations in other genes, such as JAK2 (<a href="/entry/147796">147796</a>). Inheritance of the disorder shows incomplete penetrance (<a href="#2" class="mim-tip-reference" title="DeBoy, E. A., Tassia, M. G., Schratz, K. E., Yan, S. M., Cosner, Z. L., McNally, E. J., Gable, D. L., Xiang, Z., Lombard, D. B., Antonarakis, E. S., Gocke, C. D., McCoy, R. C., Armanios, M. &lt;strong&gt;Familial clonal hematopoiesis in a long telomere syndrome.&lt;/strong&gt; New Eng. J. Med. 388: 2422-2433, 2023.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/37140166/&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;37140166&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa2300503&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="37140166">DeBoy et al., 2023</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=37140166" 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>For a discussion of genetic heterogeneity of TPDS, see TPDS1 (<a href="/entry/614327">614327</a>).</p><p>For a discussion of genetic heterogeneity of cutaneous malignant melanoma (CMM), see <a href="/entry/155600">155600</a>. For a discussion of genetic heterogeneity of glioma, see GLM1 (<a href="/entry/137800">137800</a>).</p>
</span>
<div>
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</div>
</div>
<div>
<a id="clinicalFeatures" class="mim-anchor"></a>
<h4 href="#mimClinicalFeaturesFold" id="mimClinicalFeaturesToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Clinical Features</strong>
</span>
</h4>
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<span class="mim-text-font">
<p><a href="#3" class="mim-tip-reference" title="Robles-Espinoza, C. D., Harland, M., Ramsay, A. J., Aoude, L. G., Quesada, V., Ding, Z., Pooley, K. A., Pritchard, A. L., Tiffen, J. C., Petljak, M., Palmer, J. M., Symmons, J., and 18 others. &lt;strong&gt;POT1 loss-of-function variants predispose to familial melanoma.&lt;/strong&gt; Nature Genet. 46: 478-481, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24686849/&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;24686849&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=24686849[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.2947&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="24686849">Robles-Espinoza et al. (2014)</a> reported 4 unrelated families in which at least 2 members developed cutaneous malignant melanoma. Two patients developed non-melanoma cancers, and several family members had a history of non-melanoma cancers, suggesting increased susceptibility to a range of cancers. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24686849" 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="#1" class="mim-tip-reference" title="Bainbridge, M. N., Armstrong, G. N., Gramatges, M. M., Bertuch, A. A., Jhangiani, S. N., Doddapaneni, H., Lewis, L., Tombrello, J., Tsavachidis, S., Liu, Y., Jalali, A., Plon, S. E., and 28 others. &lt;strong&gt;Germline mutations in shelterin complex genes are associated with familial glioma.&lt;/strong&gt; J. Nat. Cancer Inst. 107: 384, 2015. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25482530/&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;25482530&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=25482530[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/10.1093/jnci/dju384&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="25482530">Bainbridge et al. (2015)</a> reported 3 unrelated families in which at least 2 members had adult-onset glioma, either an astrocytoma or an oligodendroglioma. In 2 families, several other family members had different cancers, including lung cancer, kidney cancer, and leukemia. None of the families had a history of melanoma. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25482530" 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="Wong, K., Robles-Espinoza, C. D., Rodriguez, D., Rudat, S. S., Puig, S., Potrony, M., Wong, C. C., Hewinson, J., Aguilera, P., Puig-Butille, J. A., Bressac-de Paillerets, B., Zattara, H., and 13 others. &lt;strong&gt;Association of the POT1 germline missense variant p.I78T with familial melanoma.&lt;/strong&gt; JAMA Derm. 155: 604-609, 2019.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30586141/&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;30586141&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=30586141[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/10.1001/jamadermatol.2018.3662&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="30586141">Wong et al. (2019)</a> reported 4 affected individuals from 3 unrelated families of Jewish descent with TPDS3. The probands in all families had melanoma, and some affected family members also developed chronic lymphocytic leukemia, thyroid cancer, and cutaneous T-cell lymphoma. All tumors were adult-onset. Examination of melanoma and nevi tissue from 2 of the patients showed accumulation of somatic events in several driver genes, many of which were involved in the MAPK pathway. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30586141" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#2" class="mim-tip-reference" title="DeBoy, E. A., Tassia, M. G., Schratz, K. E., Yan, S. M., Cosner, Z. L., McNally, E. J., Gable, D. L., Xiang, Z., Lombard, D. B., Antonarakis, E. S., Gocke, C. D., McCoy, R. C., Armanios, M. &lt;strong&gt;Familial clonal hematopoiesis in a long telomere syndrome.&lt;/strong&gt; New Eng. J. Med. 388: 2422-2433, 2023.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/37140166/&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;37140166&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa2300503&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="37140166">DeBoy et al. (2023)</a> identified 21 patients from 8 unrelated families who developed various types of benign or malignant neoplasms associated with heterozygous germline mutations in the POT1 gene. Mutation carriers had increased telomere length compared to their noncarrier relatives. Mutation carriers developed a spectrum of tumor types, including melanoma, thyroid, glioblastoma, oligoastrocytoma, uterine fibroids, soft-tissue sarcomas, desmoid tumors, renal cell carcinoma, urothelial carcinoma, colorectal carcinoma, and hematopoietic neoplasms, such as B-cell leukemia and lymphoma, T-cell lymphoma, and myeloproliferative disorders. Analysis of peripheral T cells showed that 5 (28%) of 18 POT1 mutation carriers had evidence of increased clonality (clonal hematopoiesis of indeterminate potential, CHIP), including 4 persons with no history of hematologic cancer. Flow cytometry confirmed the presence of atypical or clonal T-cell populations in 4 of 5 of these individuals; all 5 were also incidentally identified as having clonal B-cell populations. In another analysis, 8 (67%) of 12 POT1 mutation carriers had clonal hematopoiesis of indeterminate potential (CHIP). In the clones in the carriers, DNMT3A (<a href="/entry/602769">602769</a>) was the most commonly somatically mutated gene, followed by JAK2, particularly V617F (<a href="/entry/147796#0001">147796.0001</a>). The JAK2 V617F mutations were myeloid-derived and expanded longitudinally with age. In some cases, DNMT3A mutations were shared across myeloid and lymphoid lineages, supporting their having arisen in a primitive progenitor. Phylogenetic inference of colonies derived from single-cell hematopoietic progenitors in 2 related POT1 mutation carriers yielded results consistent with driver CHIP mutations arising early in life (e.g., before 4 years of age in one 74-year-old carrier). These findings suggested that driver-carrying lineages are long-lived in POT1 mutation carriers and that long telomere length provides a selective advantage that sustains clonal evolution. Of note, delayed graying of the hair was reported in 6 mutation carriers who were over the age of 70. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=37140166" 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>The transmission pattern of TPDS3 in the families reported by <a href="#2" class="mim-tip-reference" title="DeBoy, E. A., Tassia, M. G., Schratz, K. E., Yan, S. M., Cosner, Z. L., McNally, E. J., Gable, D. L., Xiang, Z., Lombard, D. B., Antonarakis, E. S., Gocke, C. D., McCoy, R. C., Armanios, M. &lt;strong&gt;Familial clonal hematopoiesis in a long telomere syndrome.&lt;/strong&gt; New Eng. J. Med. 388: 2422-2433, 2023.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/37140166/&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;37140166&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa2300503&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="37140166">DeBoy et al. (2023)</a> was consistent with autosomal dominant inheritance. There is an age-dependent penetrance and genetic anticipation, as well as incomplete penetrance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=37140166" 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>In 9 affected members of 4 unrelated families with TPDS3 manifest as cutaneous malignant melanoma, <a href="#3" class="mim-tip-reference" title="Robles-Espinoza, C. D., Harland, M., Ramsay, A. J., Aoude, L. G., Quesada, V., Ding, Z., Pooley, K. A., Pritchard, A. L., Tiffen, J. C., Petljak, M., Palmer, J. M., Symmons, J., and 18 others. &lt;strong&gt;POT1 loss-of-function variants predispose to familial melanoma.&lt;/strong&gt; Nature Genet. 46: 478-481, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24686849/&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;24686849&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=24686849[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.2947&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="24686849">Robles-Espinoza et al. (2014)</a> identified 4 different heterozygous mutations in the POT1 gene (<a href="/entry/606478#0001">606478.0001</a>-<a href="/entry/606478#0004">606478.0004</a>). The mutations were found by whole-exome sequencing. In vitro functional expression studies showed that the mutations disrupted POT1 telomere binding, resulting in significantly longer telomere length in mutation carriers compared to melanoma patients without POT1 mutations. <a href="#3" class="mim-tip-reference" title="Robles-Espinoza, C. D., Harland, M., Ramsay, A. J., Aoude, L. G., Quesada, V., Ding, Z., Pooley, K. A., Pritchard, A. L., Tiffen, J. C., Petljak, M., Palmer, J. M., Symmons, J., and 18 others. &lt;strong&gt;POT1 loss-of-function variants predispose to familial melanoma.&lt;/strong&gt; Nature Genet. 46: 478-481, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24686849/&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;24686849&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=24686849[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.2947&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="24686849">Robles-Espinoza et al. (2014)</a> suggested that the mutations may promote uncapping of telomeres, telomere length extension, and chromosomal aberrations, thereby promoting tumorigenesis. The families were among 105 families with melanoma studied, thus accounting for 4% of the cohort. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24686849" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In affected members of 7 Italian families with TPDS3 manifest as malignant melanoma, <a href="#4" class="mim-tip-reference" title="Shi, J., Yang, X. R., Ballew, B., Rotunno, M., Calista, D., Fargnoli, M. C., Ghiorzo, P., Bressac-de Paillerets, B., Nagore, E., Avril, M. F., Caporaso, N. E., McMaster, M. L., and 40 others. &lt;strong&gt;Rare missense variants in POT1 predispose to familial cutaneous malignant melanoma.&lt;/strong&gt; Nature Genet. 46: 482-486, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24686846/&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;24686846&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=24686846[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.2941&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="24686846">Shi et al. (2014)</a> identified heterozygous mutations in the POT1 gene (see, e.g., <a href="/entry/606478#0005">606478.0005</a>-<a href="/entry/606478#0007">606478.0007</a>). The mutations were found by whole-exome sequencing. One mutation (S270N; <a href="/entry/606478#0005">606478.0005</a>) showed a founder effect in 5 Italian families. Cells from mutation carriers showed increased telomere lengths and numbers of fragile telomeres compared to controls, suggesting that perturbation of telomere maintenance is involved in tumorigenesis. Sequencing the POT1 gene in 768 Italian melanoma cases and 768 controls showed a significant increase in burden for rare exonic variants among cases compared to controls (16 carriers among cases and 3 carriers among controls; odds ratio of 5.4, p = 0.0021). Subsequent sequencing of the POT1 gene in 3 other populations identified germline missense variants (see, e.g., <a href="/entry/606478#0008">606478.0008</a>) in families of American and French origin. Functional studies were not performed for any variant identified by <a href="#4" class="mim-tip-reference" title="Shi, J., Yang, X. R., Ballew, B., Rotunno, M., Calista, D., Fargnoli, M. C., Ghiorzo, P., Bressac-de Paillerets, B., Nagore, E., Avril, M. F., Caporaso, N. E., McMaster, M. L., and 40 others. &lt;strong&gt;Rare missense variants in POT1 predispose to familial cutaneous malignant melanoma.&lt;/strong&gt; Nature Genet. 46: 482-486, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24686846/&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;24686846&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=24686846[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.2941&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="24686846">Shi et al. (2014)</a> . <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24686846" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In affected members of 3 unrelated families with gliomas, <a href="#1" class="mim-tip-reference" title="Bainbridge, M. N., Armstrong, G. N., Gramatges, M. M., Bertuch, A. A., Jhangiani, S. N., Doddapaneni, H., Lewis, L., Tombrello, J., Tsavachidis, S., Liu, Y., Jalali, A., Plon, S. E., and 28 others. &lt;strong&gt;Germline mutations in shelterin complex genes are associated with familial glioma.&lt;/strong&gt; J. Nat. Cancer Inst. 107: 384, 2015. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25482530/&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;25482530&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=25482530[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/10.1093/jnci/dju384&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="25482530">Bainbridge et al. (2015)</a> identified 3 different heterozygous mutations in the POT1 gene (<a href="/entry/606478#0009">606478.0009</a>-<a href="/entry/606478#0011">606478.0011</a>). Two families had members with histories of other cancers, although none had melanoma, and several unaffected family members carried the mutation, consistent with incomplete penetrance. Functional studies of the variants were not performed, but there was evidence that mutation carriers had a higher telomere content compared to those without the mutation. The families were ascertained from a larger cohort of 55 glioma families who underwent whole-exome sequencing. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25482530" 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 affected individuals from 3 unrelated families of Jewish descent with TPDS3, <a href="#5" class="mim-tip-reference" title="Wong, K., Robles-Espinoza, C. D., Rodriguez, D., Rudat, S. S., Puig, S., Potrony, M., Wong, C. C., Hewinson, J., Aguilera, P., Puig-Butille, J. A., Bressac-de Paillerets, B., Zattara, H., and 13 others. &lt;strong&gt;Association of the POT1 germline missense variant p.I78T with familial melanoma.&lt;/strong&gt; JAMA Derm. 155: 604-609, 2019.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30586141/&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;30586141&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=30586141[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/10.1001/jamadermatol.2018.3662&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="30586141">Wong et al. (2019)</a> identified a heterozygous I78T mutation in the POT1 gene (<a href="/entry/606478#0006">606478.0006</a>). The mutation segregated with the disorder in the families, although there was evidence of incomplete penetrance. In vitro functional studies showed that the variant impaired POT1 binding to telomere-like probes. Expression of the mutation into cells in vitro resulted in elongated telomeres. The probands in all families had melanoma, and some affected family members also developed chronic lymphocytic leukemia, thyroid cancer, and cutaneous T-cell lymphoma. All tumors were adult-onset. Examination of melanoma and nevi tissue from 2 of the patients showed accumulation of somatic events in several driver genes, many of which were involved in the MAPK pathway. Haplotype analysis suggested a founder effect. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30586141" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In affected members of 8 unrelated families with TPDS3 with various types of hematopoietic and non-hematopoietic benign and malignant neoplasms, <a href="#2" class="mim-tip-reference" title="DeBoy, E. A., Tassia, M. G., Schratz, K. E., Yan, S. M., Cosner, Z. L., McNally, E. J., Gable, D. L., Xiang, Z., Lombard, D. B., Antonarakis, E. S., Gocke, C. D., McCoy, R. C., Armanios, M. &lt;strong&gt;Familial clonal hematopoiesis in a long telomere syndrome.&lt;/strong&gt; New Eng. J. Med. 388: 2422-2433, 2023.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/37140166/&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;37140166&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa2300503&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="37140166">DeBoy et al. (2023)</a> identified heterozygous germline mutations in the POT1 gene (see, e.g., <a href="/entry/606478#0014">606478.0014</a>-<a href="/entry/606478#0016">606478.0016</a>). The mutations, which were confirmed by Sanger sequencing, segregated with the disorder in the families, with some evidence of incomplete penetrance. The mutations were either absent from or found at a low frequency in the gnomAD database. Patient cells showed decreased POT1 expression and defective binding to telomere DNA, consistent with a loss of function and haploinsufficiency. Mutation carriers, even those without tumors, had long telomeres compared to non-mutation carriers. <a href="#2" class="mim-tip-reference" title="DeBoy, E. A., Tassia, M. G., Schratz, K. E., Yan, S. M., Cosner, Z. L., McNally, E. J., Gable, D. L., Xiang, Z., Lombard, D. B., Antonarakis, E. S., Gocke, C. D., McCoy, R. C., Armanios, M. &lt;strong&gt;Familial clonal hematopoiesis in a long telomere syndrome.&lt;/strong&gt; New Eng. J. Med. 388: 2422-2433, 2023.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/37140166/&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;37140166&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa2300503&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="37140166">DeBoy et al. (2023)</a> concluded that loss of the tumor suppressor mechanism of telomere shortening resulting from POT1 haploinsufficiency may support the expansion of clonal populations, leading to an elevated risk of cancer. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=37140166" 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="Bainbridge2015" class="mim-anchor"></a>
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Bainbridge, M. N., Armstrong, G. N., Gramatges, M. M., Bertuch, A. A., Jhangiani, S. N., Doddapaneni, H., Lewis, L., Tombrello, J., Tsavachidis, S., Liu, Y., Jalali, A., Plon, S. E., and 28 others.
<strong>Germline mutations in shelterin complex genes are associated with familial glioma.</strong>
J. Nat. Cancer Inst. 107: 384, 2015. Note: Electronic Article.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/25482530/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">25482530</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=25482530[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=25482530" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/jnci/dju384" target="_blank">Full Text</a>]
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<a id="DeBoy2023" class="mim-anchor"></a>
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DeBoy, E. A., Tassia, M. G., Schratz, K. E., Yan, S. M., Cosner, Z. L., McNally, E. J., Gable, D. L., Xiang, Z., Lombard, D. B., Antonarakis, E. S., Gocke, C. D., McCoy, R. C., Armanios, M.
<strong>Familial clonal hematopoiesis in a long telomere syndrome.</strong>
New Eng. J. Med. 388: 2422-2433, 2023.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/37140166/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">37140166</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=37140166" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1056/NEJMoa2300503" target="_blank">Full Text</a>]
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Robles-Espinoza, C. D., Harland, M., Ramsay, A. J., Aoude, L. G., Quesada, V., Ding, Z., Pooley, K. A., Pritchard, A. L., Tiffen, J. C., Petljak, M., Palmer, J. M., Symmons, J., and 18 others.
<strong>POT1 loss-of-function variants predispose to familial melanoma.</strong>
Nature Genet. 46: 478-481, 2014.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/24686849/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">24686849</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=24686849[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=24686849" 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.2947" target="_blank">Full Text</a>]
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<a id="Shi2014" class="mim-anchor"></a>
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Shi, J., Yang, X. R., Ballew, B., Rotunno, M., Calista, D., Fargnoli, M. C., Ghiorzo, P., Bressac-de Paillerets, B., Nagore, E., Avril, M. F., Caporaso, N. E., McMaster, M. L., and 40 others.
<strong>Rare missense variants in POT1 predispose to familial cutaneous malignant melanoma.</strong>
Nature Genet. 46: 482-486, 2014.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/24686846/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">24686846</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=24686846[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=24686846" 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.2941" target="_blank">Full Text</a>]
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<a id="Wong2019" class="mim-anchor"></a>
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Wong, K., Robles-Espinoza, C. D., Rodriguez, D., Rudat, S. S., Puig, S., Potrony, M., Wong, C. C., Hewinson, J., Aguilera, P., Puig-Butille, J. A., Bressac-de Paillerets, B., Zattara, H., and 13 others.
<strong>Association of the POT1 germline missense variant p.I78T with familial melanoma.</strong>
JAMA Derm. 155: 604-609, 2019.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/30586141/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">30586141</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=30586141[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=30586141" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1001/jamadermatol.2018.3662" target="_blank">Full Text</a>]
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Cassandra L. Kniffin - updated : 09/21/2023
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Cassandra L. Kniffin : 6/12/2014
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ckniffin : 09/21/2023<br>carol : 05/09/2017<br>carol : 09/23/2015<br>ckniffin : 9/22/2015<br>carol : 6/26/2014<br>alopez : 6/25/2014<br>ckniffin : 6/23/2014
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<h3>
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<strong>#</strong> 615848
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<span class="mim-font">
TUMOR PREDISPOSITION SYNDROME 3; TPDS3
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<em>Alternative titles; symbols</em>
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LONG TELOMERE SYNDROME, POT1-RELATED<br />
MELANOMA, CUTANEOUS MALIGNANT, SUSCEPTIBILITY TO, 10; CMM10<br />
GLIOMA SUSCEPTIBILITY 9; GLM9
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<strong>ORPHA:</strong> 618; &nbsp;
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<strong>Phenotype-Gene Relationships</strong>
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Location
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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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Gene/Locus
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Gene/Locus <br /> MIM number
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7q31.33
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Tumor predisposition syndrome 3
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615848
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Autosomal dominant
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3
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POT1
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606478
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that tumor predisposition syndrome-3 (TPDS3) is caused by heterozygous germline mutation in the POT1 gene (606478) on chromosome 7q31.</p>
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<strong>Description</strong>
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<p>Tumor predisposition syndrome-3 (TPDS3) is an autosomal dominant disorder characterized by an increased risk for the development of various types of benign and malignant neoplasms throughout life, with age-dependent penetrance. The age of tumor onset is usually in adulthood, although there is genetic anticipation and childhood onset has been reported. Affected individuals can develop neoplasms involving epithelial, mesenchymal, and neuronal tissues, as well as clonal hematopoietic syndromes, including lymphoid and myeloid cancers. The disorder is associated with elongated telomeres, which likely results in extended cellular longevity and age-associated accumulation of somatic driver mutations in other genes, such as JAK2 (147796). Inheritance of the disorder shows incomplete penetrance (DeBoy et al., 2023). </p><p>For a discussion of genetic heterogeneity of TPDS, see TPDS1 (614327).</p><p>For a discussion of genetic heterogeneity of cutaneous malignant melanoma (CMM), see 155600. For a discussion of genetic heterogeneity of glioma, see GLM1 (137800).</p>
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<strong>Clinical Features</strong>
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<p>Robles-Espinoza et al. (2014) reported 4 unrelated families in which at least 2 members developed cutaneous malignant melanoma. Two patients developed non-melanoma cancers, and several family members had a history of non-melanoma cancers, suggesting increased susceptibility to a range of cancers. </p><p>Bainbridge et al. (2015) reported 3 unrelated families in which at least 2 members had adult-onset glioma, either an astrocytoma or an oligodendroglioma. In 2 families, several other family members had different cancers, including lung cancer, kidney cancer, and leukemia. None of the families had a history of melanoma. </p><p>Wong et al. (2019) reported 4 affected individuals from 3 unrelated families of Jewish descent with TPDS3. The probands in all families had melanoma, and some affected family members also developed chronic lymphocytic leukemia, thyroid cancer, and cutaneous T-cell lymphoma. All tumors were adult-onset. Examination of melanoma and nevi tissue from 2 of the patients showed accumulation of somatic events in several driver genes, many of which were involved in the MAPK pathway. </p><p>DeBoy et al. (2023) identified 21 patients from 8 unrelated families who developed various types of benign or malignant neoplasms associated with heterozygous germline mutations in the POT1 gene. Mutation carriers had increased telomere length compared to their noncarrier relatives. Mutation carriers developed a spectrum of tumor types, including melanoma, thyroid, glioblastoma, oligoastrocytoma, uterine fibroids, soft-tissue sarcomas, desmoid tumors, renal cell carcinoma, urothelial carcinoma, colorectal carcinoma, and hematopoietic neoplasms, such as B-cell leukemia and lymphoma, T-cell lymphoma, and myeloproliferative disorders. Analysis of peripheral T cells showed that 5 (28%) of 18 POT1 mutation carriers had evidence of increased clonality (clonal hematopoiesis of indeterminate potential, CHIP), including 4 persons with no history of hematologic cancer. Flow cytometry confirmed the presence of atypical or clonal T-cell populations in 4 of 5 of these individuals; all 5 were also incidentally identified as having clonal B-cell populations. In another analysis, 8 (67%) of 12 POT1 mutation carriers had clonal hematopoiesis of indeterminate potential (CHIP). In the clones in the carriers, DNMT3A (602769) was the most commonly somatically mutated gene, followed by JAK2, particularly V617F (147796.0001). The JAK2 V617F mutations were myeloid-derived and expanded longitudinally with age. In some cases, DNMT3A mutations were shared across myeloid and lymphoid lineages, supporting their having arisen in a primitive progenitor. Phylogenetic inference of colonies derived from single-cell hematopoietic progenitors in 2 related POT1 mutation carriers yielded results consistent with driver CHIP mutations arising early in life (e.g., before 4 years of age in one 74-year-old carrier). These findings suggested that driver-carrying lineages are long-lived in POT1 mutation carriers and that long telomere length provides a selective advantage that sustains clonal evolution. Of note, delayed graying of the hair was reported in 6 mutation carriers who were over the age of 70. </p>
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<strong>Inheritance</strong>
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<p>The transmission pattern of TPDS3 in the families reported by DeBoy et al. (2023) was consistent with autosomal dominant inheritance. There is an age-dependent penetrance and genetic anticipation, as well as incomplete penetrance. </p>
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<strong>Molecular Genetics</strong>
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<p>In 9 affected members of 4 unrelated families with TPDS3 manifest as cutaneous malignant melanoma, Robles-Espinoza et al. (2014) identified 4 different heterozygous mutations in the POT1 gene (606478.0001-606478.0004). The mutations were found by whole-exome sequencing. In vitro functional expression studies showed that the mutations disrupted POT1 telomere binding, resulting in significantly longer telomere length in mutation carriers compared to melanoma patients without POT1 mutations. Robles-Espinoza et al. (2014) suggested that the mutations may promote uncapping of telomeres, telomere length extension, and chromosomal aberrations, thereby promoting tumorigenesis. The families were among 105 families with melanoma studied, thus accounting for 4% of the cohort. </p><p>In affected members of 7 Italian families with TPDS3 manifest as malignant melanoma, Shi et al. (2014) identified heterozygous mutations in the POT1 gene (see, e.g., 606478.0005-606478.0007). The mutations were found by whole-exome sequencing. One mutation (S270N; 606478.0005) showed a founder effect in 5 Italian families. Cells from mutation carriers showed increased telomere lengths and numbers of fragile telomeres compared to controls, suggesting that perturbation of telomere maintenance is involved in tumorigenesis. Sequencing the POT1 gene in 768 Italian melanoma cases and 768 controls showed a significant increase in burden for rare exonic variants among cases compared to controls (16 carriers among cases and 3 carriers among controls; odds ratio of 5.4, p = 0.0021). Subsequent sequencing of the POT1 gene in 3 other populations identified germline missense variants (see, e.g., 606478.0008) in families of American and French origin. Functional studies were not performed for any variant identified by Shi et al. (2014) . </p><p>In affected members of 3 unrelated families with gliomas, Bainbridge et al. (2015) identified 3 different heterozygous mutations in the POT1 gene (606478.0009-606478.0011). Two families had members with histories of other cancers, although none had melanoma, and several unaffected family members carried the mutation, consistent with incomplete penetrance. Functional studies of the variants were not performed, but there was evidence that mutation carriers had a higher telomere content compared to those without the mutation. The families were ascertained from a larger cohort of 55 glioma families who underwent whole-exome sequencing. </p><p>In 4 affected individuals from 3 unrelated families of Jewish descent with TPDS3, Wong et al. (2019) identified a heterozygous I78T mutation in the POT1 gene (606478.0006). The mutation segregated with the disorder in the families, although there was evidence of incomplete penetrance. In vitro functional studies showed that the variant impaired POT1 binding to telomere-like probes. Expression of the mutation into cells in vitro resulted in elongated telomeres. The probands in all families had melanoma, and some affected family members also developed chronic lymphocytic leukemia, thyroid cancer, and cutaneous T-cell lymphoma. All tumors were adult-onset. Examination of melanoma and nevi tissue from 2 of the patients showed accumulation of somatic events in several driver genes, many of which were involved in the MAPK pathway. Haplotype analysis suggested a founder effect. </p><p>In affected members of 8 unrelated families with TPDS3 with various types of hematopoietic and non-hematopoietic benign and malignant neoplasms, DeBoy et al. (2023) identified heterozygous germline mutations in the POT1 gene (see, e.g., 606478.0014-606478.0016). The mutations, which were confirmed by Sanger sequencing, segregated with the disorder in the families, with some evidence of incomplete penetrance. The mutations were either absent from or found at a low frequency in the gnomAD database. Patient cells showed decreased POT1 expression and defective binding to telomere DNA, consistent with a loss of function and haploinsufficiency. Mutation carriers, even those without tumors, had long telomeres compared to non-mutation carriers. DeBoy et al. (2023) concluded that loss of the tumor suppressor mechanism of telomere shortening resulting from POT1 haploinsufficiency may support the expansion of clonal populations, leading to an elevated risk of cancer. </p>
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<h4>
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<strong>REFERENCES</strong>
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Bainbridge, M. N., Armstrong, G. N., Gramatges, M. M., Bertuch, A. A., Jhangiani, S. N., Doddapaneni, H., Lewis, L., Tombrello, J., Tsavachidis, S., Liu, Y., Jalali, A., Plon, S. E., and 28 others.
<strong>Germline mutations in shelterin complex genes are associated with familial glioma.</strong>
J. Nat. Cancer Inst. 107: 384, 2015. Note: Electronic Article.
[PubMed: 25482530]
[Full Text: https://doi.org/10.1093/jnci/dju384]
</p>
</li>
<li>
<p class="mim-text-font">
DeBoy, E. A., Tassia, M. G., Schratz, K. E., Yan, S. M., Cosner, Z. L., McNally, E. J., Gable, D. L., Xiang, Z., Lombard, D. B., Antonarakis, E. S., Gocke, C. D., McCoy, R. C., Armanios, M.
<strong>Familial clonal hematopoiesis in a long telomere syndrome.</strong>
New Eng. J. Med. 388: 2422-2433, 2023.
[PubMed: 37140166]
[Full Text: https://doi.org/10.1056/NEJMoa2300503]
</p>
</li>
<li>
<p class="mim-text-font">
Robles-Espinoza, C. D., Harland, M., Ramsay, A. J., Aoude, L. G., Quesada, V., Ding, Z., Pooley, K. A., Pritchard, A. L., Tiffen, J. C., Petljak, M., Palmer, J. M., Symmons, J., and 18 others.
<strong>POT1 loss-of-function variants predispose to familial melanoma.</strong>
Nature Genet. 46: 478-481, 2014.
[PubMed: 24686849]
[Full Text: https://doi.org/10.1038/ng.2947]
</p>
</li>
<li>
<p class="mim-text-font">
Shi, J., Yang, X. R., Ballew, B., Rotunno, M., Calista, D., Fargnoli, M. C., Ghiorzo, P., Bressac-de Paillerets, B., Nagore, E., Avril, M. F., Caporaso, N. E., McMaster, M. L., and 40 others.
<strong>Rare missense variants in POT1 predispose to familial cutaneous malignant melanoma.</strong>
Nature Genet. 46: 482-486, 2014.
[PubMed: 24686846]
[Full Text: https://doi.org/10.1038/ng.2941]
</p>
</li>
<li>
<p class="mim-text-font">
Wong, K., Robles-Espinoza, C. D., Rodriguez, D., Rudat, S. S., Puig, S., Potrony, M., Wong, C. C., Hewinson, J., Aguilera, P., Puig-Butille, J. A., Bressac-de Paillerets, B., Zattara, H., and 13 others.
<strong>Association of the POT1 germline missense variant p.I78T with familial melanoma.</strong>
JAMA Derm. 155: 604-609, 2019.
[PubMed: 30586141]
[Full Text: https://doi.org/10.1001/jamadermatol.2018.3662]
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Cassandra L. Kniffin - updated : 09/21/2023
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alopez : 09/25/2023<br>ckniffin : 09/21/2023<br>carol : 05/09/2017<br>carol : 09/23/2015<br>ckniffin : 9/22/2015<br>carol : 6/26/2014<br>alopez : 6/25/2014<br>ckniffin : 6/23/2014
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