nih-gov/www.ncbi.nlm.nih.gov/omim/224230

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Entry
- #224230 - DYSKERATOSIS CONGENITA, AUTOSOMAL RECESSIVE 1; DKCB1
- OMIM
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<span class="h4">#224230</span>
<br />
<strong>Table of Contents</strong>
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<a href="#title"><strong>Title</strong></a>
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<a href="#phenotypeMap"><strong>Phenotype-Gene Relationships</strong></a>
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<a href="/clinicalSynopsis/224230"><strong>Clinical Synopsis</strong></a>
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<a href="/phenotypicSeries/PS127550"> <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>
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<li role="presentation" style="margin-left: 1em">
<a href="#mapping">Mapping</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#pathogenesis">Pathogenesis</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><a href="https://clinicaltrials.gov/search?cond=DYSKERATOSIS CONGENITA, AUTOSOMAL RECESSIVE" 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>
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<div><a href="https://wormbase.org/resources/disease/DOID:0070015" class="mim-tip-hint" title="Database of the biology and genome of Caenorhabditis elegans and related nematodes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Wormbase Disease Ontology', 'domain': 'wormbase.org'})">Wormbase Disease Ontology</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>ORPHA:</strong> 1775<br />
<strong>DO:</strong> 0070015<br />
">ICD+</a>
</div>
<div>
<span class="h3">
<span class="mim-font mim-tip-hint" title="Phenotype description, molecular basis known">
<span class="text-danger"><strong>#</strong></span>
224230
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
DYSKERATOSIS CONGENITA, AUTOSOMAL RECESSIVE 1; DKCB1
</span>
</h3>
</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/15/72?start=-3&limit=10&highlight=72">
15q14
</a>
</span>
</td>
<td>
<span class="mim-font">
?Dyskeratosis congenita, autosomal recessive 1
<span class="mim-tip-hint" title="A question mark (?) indicates that the relationship between the phenotype and gene is provisional">
<span class="glyphicon glyphicon-question-sign" aria-hidden="true"></span>
</span>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/224230"> 224230 </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>
<td>
<span class="mim-font">
NOP10
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606471"> 606471 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/224230" 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')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
</div>
&nbsp;
<div class="btn-group">
<a href="/phenotypicSeries/PS127550" 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')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
</div>
&nbsp;
<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/224230" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/224230" 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 recessive <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/258211005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">258211005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0441748&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0441748</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> HEAD & NECK </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Head </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Microcephaly (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278095&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278095</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1148757008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1148757008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q02" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q02</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/742.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">742.1</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000252" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000252</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=0584d323b99dcd7001cc50e224947aca" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Microcephaly-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=0584d323b99dcd7001cc50e224947aca&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Eyes </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Sparse eyelashes (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278096&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278096</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000653" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000653</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=09052e490ffb13e8a17a589d4a9208f0" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Eyelashes,Sparse-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=09052e490ffb13e8a17a589d4a9208f0&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br /> -
Epiphora (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278097&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278097</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/193982009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">193982009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/418035005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">418035005</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H04.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H04.2</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H04.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H04.20</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/375.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">375.2</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/375.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">375.20</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0009926" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0009926</a>]</span><br /> -
Nasolacrimal duct obstruction (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278098&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278098</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/314022009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">314022009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/231841004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">231841004</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000579" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000579</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Mouth </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Leukoplakia (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278099&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278099</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/50978000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">50978000</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/274134003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">274134003</a>]</span><br /> -
Purple tongue discoloration (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278100&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278100</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Teeth </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Abnormal dentition (classic feature, NOP10 patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0262444&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0262444</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000164" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000164</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000164" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000164</a>]</span><br /> -
Small teeth (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278102&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278102</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/32337007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">32337007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/K00.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">K00.2</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000691" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000691</a>]</span><br /> -
Dental caries (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278103&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278103</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/80967001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">80967001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/K02" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">K02</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/K02.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">K02.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/521.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">521.0</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/521.00" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">521.00</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000670" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000670</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> RESPIRATORY </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Lung </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Pulmonary fibrosis (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278111&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278111</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/51615001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">51615001</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002206" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002206</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> ABDOMEN </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Liver </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Hepatic fibrosis (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278093&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278093</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/62484002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">62484002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/K74.00" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">K74.00</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/K74.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">K74.0</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001395" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001395</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Gastrointestinal </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Esophageal stricture (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278094&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278094</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/63305008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">63305008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/K22.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">K22.2</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/530.3" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">530.3</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002043" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002043</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> SKELETAL </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Osteoporosis (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3806295&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3806295</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/64859006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">64859006</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Z82.62" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Z82.62</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/M81.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M81.0</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/733.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">733.0</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/V17.81" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">V17.81</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/733.00" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">733.00</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000939" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000939</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> SKIN, NAILS, & HAIR </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Skin </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Reticular skin pigmentation (classic feature, NOP10 patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278107&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278107</a>]</span><br /> -
Thickening of the skin over the palms and soles (NOP10 patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278108&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278108</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Nails </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Nail dystrophy (classic feature, NOP10 patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/87065009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">87065009</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/L60.3" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">L60.3</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0221260&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0221260</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0008404" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008404</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0008404" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008404</a>]</span><br /> -
Hypoplastic nails <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/11375002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">11375002</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0263523&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0263523</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001792" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001792</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001792" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001792</a>]</span><br /> -
Longitudinal ridges <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/271768001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">271768001</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0423820&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0423820</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001807" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001807</a>]</span><br /> -
Pterygium formation <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1844643&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1844643</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Hair </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Sparse scalp hair (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278110&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278110</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002209" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002209</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=0794250547c51da4a5a0f6e06193a00b" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Scalp_Hair,Sparse-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=0794250547c51da4a5a0f6e06193a00b&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br /> -
Sparse eyelashes (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278096&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278096</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000653" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000653</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=09052e490ffb13e8a17a589d4a9208f0" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Eyelashes,Sparse-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=09052e490ffb13e8a17a589d4a9208f0&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> NEUROLOGIC </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Learning difficulties (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3806293&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3806293</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/161129001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">161129001</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001328" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001328</a>]</span><br /> -
Mental retardation (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3806294&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3806294</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/228156007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">228156007</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/110359009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">110359009</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/317-319.99" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">317-319.99</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001249" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001249</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> HEMATOLOGY </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Bone marrow failure (classic feature, NOP10 patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/127034005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">127034005</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/167928002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">167928002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/D61.81" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">D61.81</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/284.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">284.1</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1855710&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1855710</a>, <a href="https://bioportal.bioontology.org/search?q=C0030312&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0030312</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001876" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001876</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0005528" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0005528</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0005528" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0005528</a>]</span><br /> -
Aplastic anemia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/306058006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">306058006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/304132006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">304132006</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/D61.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">D61.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/284.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">284.9</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0002874&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0002874</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001915" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001915</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001915" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001915</a>]</span><br /> -
Thrombocytopenia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/415116008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">415116008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/302215000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">302215000</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/D69.6" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">D69.6</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/287.5" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">287.5</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0392386&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0392386</a>, <a href="https://bioportal.bioontology.org/search?q=C0040034&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0040034</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001873" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001873</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001873" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001873</a>]</span><br /> -
Pancytopenia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/127034005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">127034005</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/D61.81" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">D61.81</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/284.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">284.1</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0030312&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0030312</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001876" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001876</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001876" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001876</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">
- Increased risk of malignancy (classic feature) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3278104&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3278104</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">
- Shortened telomeres (classic feature, NOP10 patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1515263&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1515263</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0031413" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0031413</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">
- Classic triad consists of nail dystrophy, skin hyperpigmentation, and mucosal leukoplakia<br /> -
Highly variable phenotype <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1839039&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1839039</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003812" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003812</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003812" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003812</a>]</span><br /> -
Median age of diagnosis - 15 years<br /> -
Mutation in the NOP10 gene found in 1 consanguineous Saudi family (as of May 2011)<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">
- Caused by mutation in the NOP10 ribonucleoprotein gene (NOP10, <a href="/entry/606471#0001">606471.0001</a>)<br />
</span>
</div>
</div>
</div>
<div class="text-right">
<a href="#mimClinicalSynopsisFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
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<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>
Dyskeratosis congenita
- <a href="/phenotypicSeries/PS127550">PS127550</a>
- 16 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/1/936?start=-3&limit=10&highlight=936"> 1p13.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620133"> Dyskeratosis congenita, autosomal recessive 8 </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>
<td>
<span class="mim-font">
<a href="/entry/620133"> 620133 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609683"> DCLRE1B </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609683"> 609683 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/848?start=-3&limit=10&highlight=848"> 3q26.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/127550"> Dyskeratosis congenita, autosomal dominant 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="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/127550"> 127550 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602322"> TERC </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602322"> 602322 </a>
</span>
</td>
</tr>
<tr>
<td>
<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/613989"> Dyskeratosis congenita, autosomal dominant 2 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>, <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>
<td>
<span class="mim-font">
<a href="/entry/613989"> 613989 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/187270"> TERT </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/187270"> 187270 </a>
</span>
</td>
</tr>
<tr>
<td>
<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/613989"> Dyskeratosis congenita, autosomal recessive 4 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>, <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>
<td>
<span class="mim-font">
<a href="/entry/613989"> 613989 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/187270"> TERT </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/187270"> 187270 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/820?start=-3&limit=10&highlight=820"> 5q35.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613987"> Dyskeratosis congenita, autosomal recessive 2 </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>
<td>
<span class="mim-font">
<a href="/entry/613987"> 613987 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606470"> NHP2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606470"> 606470 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/124?start=-3&limit=10&highlight=124"> 14q12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/268130"> Revesz syndrome </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">
<a href="/entry/268130"> 268130 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604319"> TINF2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604319"> 604319 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/124?start=-3&limit=10&highlight=124"> 14q12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613990"> Dyskeratosis congenita, autosomal dominant 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>
</td>
<td>
<span class="mim-font">
<a href="/entry/613990"> 613990 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604319"> TINF2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604319"> 604319 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/72?start=-3&limit=10&highlight=72"> 15q14 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/224230"> ?Dyskeratosis congenita, autosomal recessive 1 </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>
<td>
<span class="mim-font">
<a href="/entry/224230"> 224230 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606471"> NOP10 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606471"> 606471 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/209?start=-3&limit=10&highlight=209"> 16p13.12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616353"> Dyskeratosis congenita, autosomal recessive 6 </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>
<td>
<span class="mim-font">
<a href="/entry/616353"> 616353 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604212"> PARN </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604212"> 604212 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/554?start=-3&limit=10&highlight=554"> 16q22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616553"> ?Dyskeratosis congenita, autosomal dominant 6 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>, <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>
<td>
<span class="mim-font">
<a href="/entry/616553"> 616553 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609377"> ACD </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609377"> 609377 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/554?start=-3&limit=10&highlight=554"> 16q22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616553"> ?Dyskeratosis congenita, autosomal recessive 7 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>, <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>
<td>
<span class="mim-font">
<a href="/entry/616553"> 616553 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609377"> ACD </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609377"> 609377 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/176?start=-3&limit=10&highlight=176"> 17p13.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613988"> Dyskeratosis congenita, autosomal recessive 3 </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>
<td>
<span class="mim-font">
<a href="/entry/613988"> 613988 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612661"> WRAP53 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612661"> 612661 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/18/18?start=-3&limit=10&highlight=18"> 18p11.32 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620040"> Dyskeratosis congenita, digenic </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Digenic dominant">DD</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">
<a href="/entry/620040"> 620040 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/188350"> TYMS </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/188350"> 188350 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/478?start=-3&limit=10&highlight=478"> 20q13.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615190"> Dyskeratosis congenita, autosomal dominant 4 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>, <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>
<td>
<span class="mim-font">
<a href="/entry/615190"> 615190 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608833"> RTEL1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608833"> 608833 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/478?start=-3&limit=10&highlight=478"> 20q13.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615190"> Dyskeratosis congenita, autosomal recessive 5 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>, <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>
<td>
<span class="mim-font">
<a href="/entry/615190"> 615190 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608833"> RTEL1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608833"> 608833 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/876?start=-3&limit=10&highlight=876"> Xq28 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/305000"> Dyskeratosis congenita, X-linked </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked recessive">XLR</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">
<a href="/entry/305000"> 305000 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300126"> DKC1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300126"> 300126 </a>
</span>
</td>
</tr>
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</table>
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that autosomal recessive dyskeratosis congenita-1 (DKCB1) is caused by homozygous mutation in the NOP10 gene (<a href="/entry/606471">606471</a>) on chromosome 15q14. One such family has been reported.</p>
</span>
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<br />
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<div>
<a id="description" class="mim-anchor"></a>
<h4 href="#mimDescriptionFold" id="mimDescriptionToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimDescriptionToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
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<strong>Description</strong>
</span>
</h4>
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<p>Dyskeratosis congenita is a bone marrow failure syndrome classically characterized by the triad of abnormal skin pigmentation, nail dystrophy, and leukoplakia of the oral mucosa. Progressive bone marrow failure occurs in over 80% of cases and is the main cause of early mortality. The phenotype is highly variable, and affected individuals may have multiple additional features, including pulmonary fibrosis, liver cirrhosis, premature hair loss and/or graying, osteoporosis, atresia of the lacrimal ducts, and learning difficulties. Predisposition to malignancy is an important feature. The disorder is caused by defects in the maintenance of telomeres (summary by <a href="#7" class="mim-tip-reference" title="Kirwan, M., Dokal, I. &lt;strong&gt;Dyskeratosis congenita: a genetic disorder of many faces.&lt;/strong&gt; Clin. Genet. 73: 103-112, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18005359/&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;18005359&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1399-0004.2007.00923.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="18005359">Kirwan and Dokal, 2008</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18005359" 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 dyskeratosis congenita, see DKCA1 (<a href="/entry/127550">127550</a>).</p>
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<p><strong><em>Early Descriptions of Autosomal Recessive Dyskeratosis Congenita</em></strong></p><p>
<a href="#1" class="mim-tip-reference" title="Addison, M., Rice, M. S. &lt;strong&gt;The association of dyskeratosis congenita and Fanconi&#x27;s anaemia.&lt;/strong&gt; Med. J. Aust. 1: 797-799, 1965.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14312691/&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;14312691&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.5694/j.1326-5377.1965.tb72218.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="14312691">Addison and Rice (1965)</a> described a male with DKC who had seemingly typical skin and mucosal changes, as well as pancytopenia. His sister had poikiloderma and oral leukoplakia, progressing to squamous carcinoma fatal at age 24 years. <a href="#9" class="mim-tip-reference" title="Sorrow, J. M., Jr., Hitch, J. M. &lt;strong&gt;Dyskeratosis congenita: first report of its occurrence in a female and a review of the literature.&lt;/strong&gt; Arch. Derm. 88: 340-347, 1963.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14043629/&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;14043629&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archderm.1963.01590210098015&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="14043629">Sorrow and Hitch (1963)</a> described a female patient with DKC who had fatal cervical and vaginal squamous carcinoma. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=14043629+14312691" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#6" class="mim-tip-reference" title="Juneja, H. S., Elder, F. F. B., Gardner, F. H. &lt;strong&gt;Abnormality of platelet size and T-lymphocyte proliferation in an autosomal recessive form of dyskeratosis congenita.&lt;/strong&gt; Europ. J. Haemat. 39: 306-310, 1987.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/3500870/&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;3500870&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1600-0609.1987.tb00774.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="3500870">Juneja et al. (1987)</a> described an autosomal recessive form of DKC in a brother and sister. The girl, aged 7 years, had pancytopenia. Her fingers and toes were described as dystrophic. She died of generalized infection with Pseudomonas aeruginosa after operation for appendicitis. Her 11-year-old brother had mild thrombocytopenia with abnormally small platelets. T-cell abnormalities were also described. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3500870" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#3" class="mim-tip-reference" title="Drachtman, R. A., Alter, B. P. &lt;strong&gt;Dyskeratosis congenita: clinical and genetic heterogeneity: report of a new case and review of the literature.&lt;/strong&gt; Am. J. Pediat. Hemat. Oncol. 14: 297-304, 1992.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/1456394/&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;1456394&lt;/a&gt;]" pmid="1456394">Drachtman and Alter (1992)</a> found that the clinical phenotype of dyskeratosis congenita varied according to mode of inheritance. They categorized all sporadic male cases and families with multiple male cases as X-linked recessive (DCKX; <a href="/entry/305000">305000</a>). Autosomal recessive cases included all sporadic female cases, cases in which both male and female sibs of only 1 generation were affected, and those cases with known parental consanguinity. Families with affected male and female members in consecutive generations were classified as autosomal dominant (<a href="/entry/127550">127550</a>). X-linked recessive and autosomal recessive cases had a high incidence of nail dystrophy, cutaneous manifestations and leukoplakia, as well as a similar median age (approximately 15 years) at diagnosis and a similar prognosis. Autosomal dominant cases had a milder variant of the syndrome, the median age at diagnosis being 28 years and the median survival longer than 50 years. It is possible that some sporadic female cases categorized as having an autosomal recessive form are, in fact, X-linked recessive carriers. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1456394" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#4" class="mim-tip-reference" title="Elliott, A. M., Graham, G. E., Bernstein, M., Mazer, B., Teebi, A. S. &lt;strong&gt;Dyskeratosis congenita: an autosomal recessive variant.&lt;/strong&gt; Am. J. Med. Genet. 83: 178-182, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10096592/&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;10096592&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/(sici)1096-8628(19990319)83:3&lt;178::aid-ajmg6&gt;3.0.co;2-3&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="10096592">Elliott et al. (1999)</a> described a 16-year-old woman of Syrian-Arab descent with dyskeratosis congenita, microcephaly, and a purple discoloration of the tongue. The latter findings had been reported in another female patient with DKC (<a href="#8" class="mim-tip-reference" title="Pai, G. S., Morgan, S., Whetsell, C. &lt;strong&gt;Etiologic heterogeneity in dyskeratosis congenita.&lt;/strong&gt; Am. J. Med. Genet. 32: 63-66, 1989.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/2705484/&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;2705484&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.1320320114&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="2705484">Pai et al., 1989</a>) and may be distinctive features of the autosomal recessive form of the disorder. The findings of an affected brother and parental consanguinity supported the hypothesis of autosomal recessive inheritance. The patient also showed sparse scalp hair and eyelashes, prominent periorbital telangiectasia, bilateral lacrimal duct obstruction, and hypoplastic/dysplastic nails. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=2705484+10096592" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><strong><em>Patients with Confirmed NOP10 Gene Mutations</em></strong></p><p>
<a href="#10" class="mim-tip-reference" title="Walne, A. J., Vulliamy, T., Marrone, A., Beswick, R., Kirwan, M., Masunari, Y., Al Qurashi, F., Aljurf, M., Dokal, I. &lt;strong&gt;Genetic heterogeneity in autosomal recessive dyskeratosis congenita with one subtype due to mutations in the telomerase-associated protein NOP10.&lt;/strong&gt; Hum. Molec. Genet. 16: 1619-1629, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17507419/&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;17507419&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=17507419[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/hmg/ddm111&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="17507419">Walne et al. (2007)</a> reported a consanguineous family from Saudi Arabia in which 3 individuals had DKC, diagnosed at ages 16, 20, and 15 years, respectively. All had reticular skin pigmentation over the neck and upper extremities, dystrophic nails, and abnormal dentition. All also had thickening of the skin over the palms and soles. Hypocellular bone marrow with peripheral pancytopenia was only observed in 1 patient, and none had leukoplakia. Cellular studies showed significant telomere shortening and reduced levels of TERC (<a href="/entry/602322">602322</a>). The heterozygous parents were unaffected, but also had telomere lengths that were statistically lower than normal. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17507419" 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>Evidence for autosomal recessive inheritance of dyskeratosis congenita comes from the finding of parental consanguinity in affected families and affected sibs (<a href="#2" class="mim-tip-reference" title="Costello, M. J., Buncke, C. M. &lt;strong&gt;Dyskeratosis congenita.&lt;/strong&gt; AMA Arch. Derm. 73: 123-132, 1956.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/13282498/&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;13282498&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archderm.1956.01550020023004&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="13282498">Costello and Buncke, 1956</a>; <a href="#5" class="mim-tip-reference" title="Fudenberg, H. H., Goust, J. M., Vesole, D. H., Salinas, C. F. &lt;strong&gt;Active and suppressor T cells: diminution in a patient with dyskeratosis congenita and in first-degree relatives.&lt;/strong&gt; Gerontology 25: 231-237, 1979.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/313356/&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;313356&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1159/000212345&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="313356">Fudenberg et al., 1979</a>; <a href="#6" class="mim-tip-reference" title="Juneja, H. S., Elder, F. F. B., Gardner, F. H. &lt;strong&gt;Abnormality of platelet size and T-lymphocyte proliferation in an autosomal recessive form of dyskeratosis congenita.&lt;/strong&gt; Europ. J. Haemat. 39: 306-310, 1987.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/3500870/&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;3500870&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1600-0609.1987.tb00774.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="3500870">Juneja et al., 1987</a>). <a href="#8" class="mim-tip-reference" title="Pai, G. S., Morgan, S., Whetsell, C. &lt;strong&gt;Etiologic heterogeneity in dyskeratosis congenita.&lt;/strong&gt; Am. J. Med. Genet. 32: 63-66, 1989.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/2705484/&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;2705484&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.1320320114&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="2705484">Pai et al. (1989)</a> described a sporadic female case and reviewed other reported cases in females, indicating autosomal inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=313356+3500870+2705484+13282498" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p>By homozygosity mapping in 16 consanguineous families with dyskeratosis congenita, <a href="#10" class="mim-tip-reference" title="Walne, A. J., Vulliamy, T., Marrone, A., Beswick, R., Kirwan, M., Masunari, Y., Al Qurashi, F., Aljurf, M., Dokal, I. &lt;strong&gt;Genetic heterogeneity in autosomal recessive dyskeratosis congenita with one subtype due to mutations in the telomerase-associated protein NOP10.&lt;/strong&gt; Hum. Molec. Genet. 16: 1619-1629, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17507419/&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;17507419&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=17507419[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/hmg/ddm111&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="17507419">Walne et al. (2007)</a> found evidence of heterogeneity. By linkage analysis in one Saudi family, they found a maximum lod score of 2.7 for linkage to chromosome 15q14. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17507419" 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 all 3 affected members of a consanguineous Saudi family with autosomal recessive dyskeratosis congenita linked to chromosome 15, <a href="#10" class="mim-tip-reference" title="Walne, A. J., Vulliamy, T., Marrone, A., Beswick, R., Kirwan, M., Masunari, Y., Al Qurashi, F., Aljurf, M., Dokal, I. &lt;strong&gt;Genetic heterogeneity in autosomal recessive dyskeratosis congenita with one subtype due to mutations in the telomerase-associated protein NOP10.&lt;/strong&gt; Hum. Molec. Genet. 16: 1619-1629, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17507419/&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;17507419&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=17507419[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/hmg/ddm111&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="17507419">Walne et al. (2007)</a> identified homozygosity for a causative mutation in the NOP10 gene (R34W; <a href="/entry/606471#0001">606471.0001</a>). Those affected had significant telomere shortening and reduced telomerase RNA component (TERC; <a href="/entry/602322">602322</a>) levels. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17507419" 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>Pathogenesis</strong>
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<div id="mimPathogenesisFold" class="collapse in mimTextToggleFold">
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<p>Autosomal dominant and X-linked recessive DKC are caused by mutations in genes that are components of H/ACA snoRNP complexes including telomerase. <a href="#10" class="mim-tip-reference" title="Walne, A. J., Vulliamy, T., Marrone, A., Beswick, R., Kirwan, M., Masunari, Y., Al Qurashi, F., Aljurf, M., Dokal, I. &lt;strong&gt;Genetic heterogeneity in autosomal recessive dyskeratosis congenita with one subtype due to mutations in the telomerase-associated protein NOP10.&lt;/strong&gt; Hum. Molec. Genet. 16: 1619-1629, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17507419/&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;17507419&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=17507419[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/hmg/ddm111&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="17507419">Walne et al. (2007)</a> noted that their finding of mutations in the NOP10 gene in autosomal recessive DKC strengthens the model that defective telomere maintenance is the primary pathology in DKC. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17507419" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>REFERENCES</strong>
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<a id="1" class="mim-anchor"></a>
<a id="Addison1965" class="mim-anchor"></a>
<div class="">
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Addison, M., Rice, M. S.
<strong>The association of dyskeratosis congenita and Fanconi's anaemia.</strong>
Med. J. Aust. 1: 797-799, 1965.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/14312691/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">14312691</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14312691" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.5694/j.1326-5377.1965.tb72218.x" target="_blank">Full Text</a>]
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<a id="Costello1956" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Costello, M. J., Buncke, C. M.
<strong>Dyskeratosis congenita.</strong>
AMA Arch. Derm. 73: 123-132, 1956.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/13282498/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">13282498</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=13282498" 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/archderm.1956.01550020023004" target="_blank">Full Text</a>]
</p>
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<a id="3" class="mim-anchor"></a>
<a id="Drachtman1992" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Drachtman, R. A., Alter, B. P.
<strong>Dyskeratosis congenita: clinical and genetic heterogeneity: report of a new case and review of the literature.</strong>
Am. J. Pediat. Hemat. Oncol. 14: 297-304, 1992.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/1456394/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">1456394</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1456394" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
</p>
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<a id="4" class="mim-anchor"></a>
<a id="Elliott1999" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Elliott, A. M., Graham, G. E., Bernstein, M., Mazer, B., Teebi, A. S.
<strong>Dyskeratosis congenita: an autosomal recessive variant.</strong>
Am. J. Med. Genet. 83: 178-182, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10096592/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10096592</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10096592" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/(sici)1096-8628(19990319)83:3&lt;178::aid-ajmg6&gt;3.0.co;2-3" target="_blank">Full Text</a>]
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<a id="5" class="mim-anchor"></a>
<a id="Fudenberg1979" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Fudenberg, H. H., Goust, J. M., Vesole, D. H., Salinas, C. F.
<strong>Active and suppressor T cells: diminution in a patient with dyskeratosis congenita and in first-degree relatives.</strong>
Gerontology 25: 231-237, 1979.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/313356/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">313356</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=313356" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1159/000212345" target="_blank">Full Text</a>]
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<a id="Juneja1987" class="mim-anchor"></a>
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<p class="mim-text-font">
Juneja, H. S., Elder, F. F. B., Gardner, F. H.
<strong>Abnormality of platelet size and T-lymphocyte proliferation in an autosomal recessive form of dyskeratosis congenita.</strong>
Europ. J. Haemat. 39: 306-310, 1987.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/3500870/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">3500870</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3500870" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1111/j.1600-0609.1987.tb00774.x" target="_blank">Full Text</a>]
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<a id="7" class="mim-anchor"></a>
<a id="Kirwan2008" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Kirwan, M., Dokal, I.
<strong>Dyskeratosis congenita: a genetic disorder of many faces.</strong>
Clin. Genet. 73: 103-112, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18005359/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18005359</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18005359" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1111/j.1399-0004.2007.00923.x" target="_blank">Full Text</a>]
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<a id="Pai1989" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Pai, G. S., Morgan, S., Whetsell, C.
<strong>Etiologic heterogeneity in dyskeratosis congenita.</strong>
Am. J. Med. Genet. 32: 63-66, 1989.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/2705484/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">2705484</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=2705484" 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.1320320114" target="_blank">Full Text</a>]
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<a id="9" class="mim-anchor"></a>
<a id="Sorrow1963" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Sorrow, J. M., Jr., Hitch, J. M.
<strong>Dyskeratosis congenita: first report of its occurrence in a female and a review of the literature.</strong>
Arch. Derm. 88: 340-347, 1963.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/14043629/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">14043629</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14043629" 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/archderm.1963.01590210098015" target="_blank">Full Text</a>]
</p>
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<li>
<a id="10" class="mim-anchor"></a>
<a id="Walne2007" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Walne, A. J., Vulliamy, T., Marrone, A., Beswick, R., Kirwan, M., Masunari, Y., Al Qurashi, F., Aljurf, M., Dokal, I.
<strong>Genetic heterogeneity in autosomal recessive dyskeratosis congenita with one subtype due to mutations in the telomerase-associated protein NOP10.</strong>
Hum. Molec. Genet. 16: 1619-1629, 2007.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/17507419/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">17507419</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=17507419[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=17507419" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/hmg/ddm111" target="_blank">Full Text</a>]
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<span class="mim-text-font">
Cassandra L. Kniffin - updated : 5/25/2011
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<span class="mim-text-font">
Cassandra L. Kniffin - updated : 6/30/2009<br>George E. Tiller - updated : 4/10/2008<br>Victor A. McKusick - updated : 3/12/1999
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Creation Date:
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Victor A. McKusick : 6/3/1986
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carol : 06/02/2023
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alopez : 06/01/2023<br>carol : 10/12/2021<br>carol : 10/11/2021<br>carol : 04/07/2017<br>alopez : 09/18/2015<br>carol : 5/26/2011<br>ckniffin : 5/25/2011<br>wwang : 7/24/2009<br>ckniffin : 6/30/2009<br>carol : 4/10/2008<br>terry : 3/31/2008<br>carol : 3/15/1999<br>terry : 3/12/1999<br>carol : 3/30/1998<br>jamie : 10/23/1996<br>jamie : 10/16/1996<br>carol : 8/23/1996<br>marlene : 8/2/1996<br>terry : 7/26/1996<br>jason : 7/18/1994<br>mimadm : 2/19/1994<br>supermim : 3/16/1992<br>supermim : 3/20/1990<br>ddp : 10/26/1989<br>root : 3/10/1989
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<strong>#</strong> 224230
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DYSKERATOSIS CONGENITA, AUTOSOMAL RECESSIVE 1; DKCB1
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<strong>ORPHA:</strong> 1775; &nbsp;
<strong>DO:</strong> 0070015; &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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15q14
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?Dyskeratosis congenita, autosomal recessive 1
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224230
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Autosomal recessive
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3
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NOP10
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606471
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that autosomal recessive dyskeratosis congenita-1 (DKCB1) is caused by homozygous mutation in the NOP10 gene (606471) on chromosome 15q14. One such family has been reported.</p>
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<strong>Description</strong>
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<p>Dyskeratosis congenita is a bone marrow failure syndrome classically characterized by the triad of abnormal skin pigmentation, nail dystrophy, and leukoplakia of the oral mucosa. Progressive bone marrow failure occurs in over 80% of cases and is the main cause of early mortality. The phenotype is highly variable, and affected individuals may have multiple additional features, including pulmonary fibrosis, liver cirrhosis, premature hair loss and/or graying, osteoporosis, atresia of the lacrimal ducts, and learning difficulties. Predisposition to malignancy is an important feature. The disorder is caused by defects in the maintenance of telomeres (summary by Kirwan and Dokal, 2008). </p><p>For a discussion of genetic heterogeneity of dyskeratosis congenita, see DKCA1 (127550).</p>
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<strong>Clinical Features</strong>
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<p><strong><em>Early Descriptions of Autosomal Recessive Dyskeratosis Congenita</em></strong></p><p>
Addison and Rice (1965) described a male with DKC who had seemingly typical skin and mucosal changes, as well as pancytopenia. His sister had poikiloderma and oral leukoplakia, progressing to squamous carcinoma fatal at age 24 years. Sorrow and Hitch (1963) described a female patient with DKC who had fatal cervical and vaginal squamous carcinoma. </p><p>Juneja et al. (1987) described an autosomal recessive form of DKC in a brother and sister. The girl, aged 7 years, had pancytopenia. Her fingers and toes were described as dystrophic. She died of generalized infection with Pseudomonas aeruginosa after operation for appendicitis. Her 11-year-old brother had mild thrombocytopenia with abnormally small platelets. T-cell abnormalities were also described. </p><p>Drachtman and Alter (1992) found that the clinical phenotype of dyskeratosis congenita varied according to mode of inheritance. They categorized all sporadic male cases and families with multiple male cases as X-linked recessive (DCKX; 305000). Autosomal recessive cases included all sporadic female cases, cases in which both male and female sibs of only 1 generation were affected, and those cases with known parental consanguinity. Families with affected male and female members in consecutive generations were classified as autosomal dominant (127550). X-linked recessive and autosomal recessive cases had a high incidence of nail dystrophy, cutaneous manifestations and leukoplakia, as well as a similar median age (approximately 15 years) at diagnosis and a similar prognosis. Autosomal dominant cases had a milder variant of the syndrome, the median age at diagnosis being 28 years and the median survival longer than 50 years. It is possible that some sporadic female cases categorized as having an autosomal recessive form are, in fact, X-linked recessive carriers. </p><p>Elliott et al. (1999) described a 16-year-old woman of Syrian-Arab descent with dyskeratosis congenita, microcephaly, and a purple discoloration of the tongue. The latter findings had been reported in another female patient with DKC (Pai et al., 1989) and may be distinctive features of the autosomal recessive form of the disorder. The findings of an affected brother and parental consanguinity supported the hypothesis of autosomal recessive inheritance. The patient also showed sparse scalp hair and eyelashes, prominent periorbital telangiectasia, bilateral lacrimal duct obstruction, and hypoplastic/dysplastic nails. </p><p><strong><em>Patients with Confirmed NOP10 Gene Mutations</em></strong></p><p>
Walne et al. (2007) reported a consanguineous family from Saudi Arabia in which 3 individuals had DKC, diagnosed at ages 16, 20, and 15 years, respectively. All had reticular skin pigmentation over the neck and upper extremities, dystrophic nails, and abnormal dentition. All also had thickening of the skin over the palms and soles. Hypocellular bone marrow with peripheral pancytopenia was only observed in 1 patient, and none had leukoplakia. Cellular studies showed significant telomere shortening and reduced levels of TERC (602322). The heterozygous parents were unaffected, but also had telomere lengths that were statistically lower than normal. </p>
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<strong>Inheritance</strong>
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<p>Evidence for autosomal recessive inheritance of dyskeratosis congenita comes from the finding of parental consanguinity in affected families and affected sibs (Costello and Buncke, 1956; Fudenberg et al., 1979; Juneja et al., 1987). Pai et al. (1989) described a sporadic female case and reviewed other reported cases in females, indicating autosomal inheritance. </p>
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<strong>Mapping</strong>
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<p>By homozygosity mapping in 16 consanguineous families with dyskeratosis congenita, Walne et al. (2007) found evidence of heterogeneity. By linkage analysis in one Saudi family, they found a maximum lod score of 2.7 for linkage to chromosome 15q14. </p>
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<strong>Molecular Genetics</strong>
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<p>In all 3 affected members of a consanguineous Saudi family with autosomal recessive dyskeratosis congenita linked to chromosome 15, Walne et al. (2007) identified homozygosity for a causative mutation in the NOP10 gene (R34W; 606471.0001). Those affected had significant telomere shortening and reduced telomerase RNA component (TERC; 602322) levels. </p>
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<strong>Pathogenesis</strong>
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<p>Autosomal dominant and X-linked recessive DKC are caused by mutations in genes that are components of H/ACA snoRNP complexes including telomerase. Walne et al. (2007) noted that their finding of mutations in the NOP10 gene in autosomal recessive DKC strengthens the model that defective telomere maintenance is the primary pathology in DKC. </p>
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<h4>
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<strong>REFERENCES</strong>
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<ol>
<li>
<p class="mim-text-font">
Addison, M., Rice, M. S.
<strong>The association of dyskeratosis congenita and Fanconi&#x27;s anaemia.</strong>
Med. J. Aust. 1: 797-799, 1965.
[PubMed: 14312691]
[Full Text: https://doi.org/10.5694/j.1326-5377.1965.tb72218.x]
</p>
</li>
<li>
<p class="mim-text-font">
Costello, M. J., Buncke, C. M.
<strong>Dyskeratosis congenita.</strong>
AMA Arch. Derm. 73: 123-132, 1956.
[PubMed: 13282498]
[Full Text: https://doi.org/10.1001/archderm.1956.01550020023004]
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</li>
<li>
<p class="mim-text-font">
Drachtman, R. A., Alter, B. P.
<strong>Dyskeratosis congenita: clinical and genetic heterogeneity: report of a new case and review of the literature.</strong>
Am. J. Pediat. Hemat. Oncol. 14: 297-304, 1992.
[PubMed: 1456394]
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</li>
<li>
<p class="mim-text-font">
Elliott, A. M., Graham, G. E., Bernstein, M., Mazer, B., Teebi, A. S.
<strong>Dyskeratosis congenita: an autosomal recessive variant.</strong>
Am. J. Med. Genet. 83: 178-182, 1999.
[PubMed: 10096592]
[Full Text: https://doi.org/10.1002/(sici)1096-8628(19990319)83:3&lt;178::aid-ajmg6&gt;3.0.co;2-3]
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<li>
<p class="mim-text-font">
Fudenberg, H. H., Goust, J. M., Vesole, D. H., Salinas, C. F.
<strong>Active and suppressor T cells: diminution in a patient with dyskeratosis congenita and in first-degree relatives.</strong>
Gerontology 25: 231-237, 1979.
[PubMed: 313356]
[Full Text: https://doi.org/10.1159/000212345]
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</li>
<li>
<p class="mim-text-font">
Juneja, H. S., Elder, F. F. B., Gardner, F. H.
<strong>Abnormality of platelet size and T-lymphocyte proliferation in an autosomal recessive form of dyskeratosis congenita.</strong>
Europ. J. Haemat. 39: 306-310, 1987.
[PubMed: 3500870]
[Full Text: https://doi.org/10.1111/j.1600-0609.1987.tb00774.x]
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</li>
<li>
<p class="mim-text-font">
Kirwan, M., Dokal, I.
<strong>Dyskeratosis congenita: a genetic disorder of many faces.</strong>
Clin. Genet. 73: 103-112, 2008.
[PubMed: 18005359]
[Full Text: https://doi.org/10.1111/j.1399-0004.2007.00923.x]
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</li>
<li>
<p class="mim-text-font">
Pai, G. S., Morgan, S., Whetsell, C.
<strong>Etiologic heterogeneity in dyskeratosis congenita.</strong>
Am. J. Med. Genet. 32: 63-66, 1989.
[PubMed: 2705484]
[Full Text: https://doi.org/10.1002/ajmg.1320320114]
</p>
</li>
<li>
<p class="mim-text-font">
Sorrow, J. M., Jr., Hitch, J. M.
<strong>Dyskeratosis congenita: first report of its occurrence in a female and a review of the literature.</strong>
Arch. Derm. 88: 340-347, 1963.
[PubMed: 14043629]
[Full Text: https://doi.org/10.1001/archderm.1963.01590210098015]
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</li>
<li>
<p class="mim-text-font">
Walne, A. J., Vulliamy, T., Marrone, A., Beswick, R., Kirwan, M., Masunari, Y., Al Qurashi, F., Aljurf, M., Dokal, I.
<strong>Genetic heterogeneity in autosomal recessive dyskeratosis congenita with one subtype due to mutations in the telomerase-associated protein NOP10.</strong>
Hum. Molec. Genet. 16: 1619-1629, 2007.
[PubMed: 17507419]
[Full Text: https://doi.org/10.1093/hmg/ddm111]
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