nih-gov/www.ncbi.nlm.nih.gov/omim/278760

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Entry
- #278760 - XERODERMA PIGMENTOSUM, COMPLEMENTATION GROUP F; XPF
- OMIM
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<span class="h4">#278760</span>
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<strong>Table of Contents</strong>
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<a href="#title"><strong>Title</strong></a>
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<a href="#phenotypeMap"><strong>Phenotype-Gene Relationships</strong></a>
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<a href="/clinicalSynopsis/278760"><strong>Clinical Synopsis</strong></a>
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<a href="#text"><strong>Text</strong></a>
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<a href="#description">Description</a>
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<a href="#clinicalFeatures">Clinical Features</a>
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<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#references"><strong>References</strong></a>
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<a href="#contributors"><strong>Contributors</strong></a>
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<a href="#creationDate"><strong>Creation Date</strong></a>
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<div><a href="https://clinicaltrials.gov/search?cond=XERODERMA PIGMENTOSUM, COMPLEMENTATION GROUP F" 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 style="margin-left: 0.5em;"><a href="https://www.orpha.net/consor/cgi-bin/ClinicalLabs_Search_Simple.php?lng=EN&LnkId=18903&Typ=Pat" title="Xeroderma pigmentosum-Cockayne syndrome complex" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'EuroGentest', 'domain': 'orpha.net'})">Xeroderma pigmentosum-Cock…&nbsp;</a></div><div style="margin-left: 0.5em;"><a href="https://www.orpha.net/consor/cgi-bin/ClinicalLabs_Search_Simple.php?lng=EN&LnkId=3253&Typ=Pat" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'EuroGentest', 'domain': 'orpha.net'})">Xeroderma pigmentosum&nbsp;</a></div>
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<div style="margin-left: 0.5em;"><a href="https://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&Expert=220295" title="Xeroderma pigmentosum-Cockayne syndrome complex" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'OrphaNet', 'domain': 'orpha.net'})">Xeroderma pigmentosum-Cock…</a></div><div style="margin-left: 0.5em;"><a href="https://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&Expert=910" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'OrphaNet', 'domain': 'orpha.net'})">Xeroderma pigmentosum</a></div>
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<a href="#mimAnimalModelsLinksFold" id="mimAnimalModelsLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimAnimalModelsLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Animal Models</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimAnimalModelsLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.alliancegenome.org/disease/DOID:0110848" class="mim-tip-hint" title="Search Across Species; explore model organism and human comparative genomics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Alliance Genome', 'domain': 'alliancegenome.org'})">Alliance Genome</a></div>
<div><a href="http://www.informatics.jax.org/disease/278760" class="mim-tip-hint" title="Phenotypes, alleles, and disease models from Mouse Genome Informatics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MGI Mouse Phenotype', 'domain': 'informatics.jax.org'})">MGI Mouse Phenotype</a></div>
<div><a href="https://wormbase.org/resources/disease/DOID:0110848" 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 class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimCellLines">
<span class="panel-title">
<span class="small">
<a href="#mimCellLinesLinksFold" id="mimCellLinesLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimCellLinesLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Cell Lines</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimCellLinesLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://catalog.coriell.org/Search?q=OmimNum:278760" class="definition" title="Coriell Cell Repositories; cell cultures and DNA derived from cell cultures." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'CCR', 'domain': 'ccr.coriell.org'})">Coriell</a></div>
</div>
</div>
</div>
</div>
</div>
</div>
<span>
<span class="mim-tip-bottom" qtip_title="<strong>Looking for this gene or this phenotype in other resources?</strong>" qtip_text="Select a related resource from the dropdown menu and click for a targeted link to information directly relevant.">
&nbsp;
</span>
</span>
</div>
<div class="col-lg-8 col-lg-pull-2 col-md-8 col-md-pull-2 col-sm-8 col-sm-pull-2 col-xs-12">
<div>
<a id="title" class="mim-anchor"></a>
<div>
<a id="number" class="mim-anchor"></a>
<div class="text-right">
<a href="#" class="mim-tip-icd" qtip_title="<strong>ICD+</strong>" qtip_text="
<strong>SNOMEDCT:</strong> 42530008<br />
<strong>ORPHA:</strong> 220295, 910<br />
<strong>DO:</strong> 0110848<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>
278760
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
XERODERMA PIGMENTOSUM, COMPLEMENTATION GROUP F; XPF
</span>
</h3>
</div>
<div>
<br />
</div>
<div>
<a id="alternativeTitles" class="mim-anchor"></a>
<div>
<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
</span>
</p>
</div>
<div>
<h4>
<span class="mim-font">
XP, GROUP F<br />
XERODERMA PIGMENTOSUM VI; XP6
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
<div>
<a id="includedTitles" class="mim-anchor"></a>
<div>
<p>
<span class="mim-font">
Other entities represented in this entry:
</span>
</p>
</div>
<div>
<span class="h3 mim-font">
XERODERMA PIGMENTOSUM, TYPE F/COCKAYNE SYNDROME, INCLUDED; XPF/CS, INCLUDED
</span>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<a id="phenotypeMap" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>Phenotype-Gene Relationships</strong>
</span>
</h4>
<div>
<table class="table table-bordered table-condensed table-hover small mim-table-padding">
<thead>
<tr class="active">
<th>
Location
</th>
<th>
Phenotype
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
<th>
Gene/Locus
</th>
<th>
Gene/Locus <br /> MIM number
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/205?start=-3&limit=10&highlight=205">
16p13.12
</a>
</span>
</td>
<td>
<span class="mim-font">
Xeroderma pigmentosum, group F
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/278760"> 278760 </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">
ERCC4
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/133520"> 133520 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/205?start=-3&limit=10&highlight=205">
16p13.12
</a>
</span>
</td>
<td>
<span class="mim-font">
Xeroderma pigmentosum, type F/Cockayne syndrome
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/278760"> 278760 </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">
ERCC4
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/133520"> 133520 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/278760" 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">
<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/278760" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/278760" 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> GROWTH </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Height </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Short stature (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/422065006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">422065006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237836003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237836003</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237837007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237837007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/E34.31" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">E34.31</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/R62.52" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R62.52</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/783.43" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">783.43</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0349588&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0349588</a>, <a href="https://bioportal.bioontology.org/search?q=C0013336&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0013336</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003510" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003510</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0004322" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004322</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0004322" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004322</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Weight </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Low weight (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/248342006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">248342006</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R63.6" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R63.6</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/783.22" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">783.22</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0041667&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0041667</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0004325" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004325</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0004325" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004325</a>]</span><br />
</span>
</div>
</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 (in some patients) <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">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4551563&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4551563</a>, <a href="https://bioportal.bioontology.org/search?q=C0025958&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0025958</a> 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> <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> Ears </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Hearing impairment (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/103276001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">103276001</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/15188001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">15188001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H91.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H91.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/389.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">389.9</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/389" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">389</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1384666&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1384666</a>, <a href="https://bioportal.bioontology.org/search?q=C1550444&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1550444</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000365" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000365</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000365" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000365</a>]</span><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">
- Deep-set eyes (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/246923005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">246923005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0423224&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0423224</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000490" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000490</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000490" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000490</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=08eb099548b91270db09ad79e8e75da3" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Eye,Deeply_Set-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=08eb099548b91270db09ad79e8e75da3&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 /> -
Astigmatism (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/82649003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">82649003</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H52.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H52.2</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H52.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H52.20</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/367.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">367.2</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/367.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">367.20</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0004106&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0004106</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000483" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000483</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000483" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000483</a>]</span><br /> -
Nystagmus (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/563001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">563001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H55.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H55.0</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H55.00" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H55.00</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/379.50" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">379.50</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0028738&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0028738</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000639" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000639</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000639" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000639</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">
- Joint contractures (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/7890003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">7890003</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/M24.5" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M24.5</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/718.4" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">718.4</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/718.40" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">718.40</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0009918&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0009918</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0034392" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0034392</a>]</span><br />
</span>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Spine </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Scoliosis (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/298382003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">298382003</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/20944008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">20944008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/111266001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">111266001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/M41.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M41.9</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/M41" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M41</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/Q67.5" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q67.5</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0559260&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0559260</a>, <a href="https://bioportal.bioontology.org/search?q=C0036439&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0036439</a>, <a href="https://bioportal.bioontology.org/search?q=C0700208&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0700208</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002650" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002650</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002650" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002650</a>]</span><br />
</span>
</div>
</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">
- Skin photosensitivity <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/90128006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">90128006</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0349506&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0349506</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000992" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000992</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000992" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000992</a>]</span><br /> -
Numerous pigmented freckles <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1968565&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1968565</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007587" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007587</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007587" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007587</a>]</span><br /> -
Seborrheic keratosis-like papules <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1968566&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1968566</a>]</span><br /> -
Rare skin cancers <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1968567&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1968567</a>]</span><br /> -
Plantar warts <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1296907001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1296907001</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/63440008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">63440008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/B07.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">B07.0</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/078.12" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">078.12</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0042548&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0042548</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0033005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0033005</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0033005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0033005</a>]</span><br /> -
Hyperpigmentation <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/4830009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">4830009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/49765009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">49765009</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0162834&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0162834</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000953" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000953</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> NEUROLOGIC </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Central Nervous System </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Learning disabilities (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1855002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1855002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/F81.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">F81.9</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0751265&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0751265</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 (in some patients) <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">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3714756&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3714756</a>, <a href="https://bioportal.bioontology.org/search?q=C0025362&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0025362</a> 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> <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 /> -
Ataxia (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/20262006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">20262006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/39384006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">39384006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/85102008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">85102008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R27.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R27.0</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/438.84" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">438.84</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0004134&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0004134</a>, <a href="https://bioportal.bioontology.org/search?q=C1135207&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1135207</a>, <a href="https://bioportal.bioontology.org/search?q=C0007758&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0007758</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001251" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001251</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0010867" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0010867</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001251" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001251</a>]</span><br /> -
Tremor (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/26079004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">26079004</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R25.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R25.1</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0040822&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0040822</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001337" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001337</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001337" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001337</a>]</span><br /> -
Dementia (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/52448006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">52448006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/12348006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">12348006</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/F03.90" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">F03.90</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/F03" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">F03</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/290.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">290.1</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/294.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">294.2</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/290" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">290</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0011265&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0011265</a>, <a href="https://bioportal.bioontology.org/search?q=C0497327&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0497327</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000726" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000726</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000726" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000726</a>]</span><br /> -
Brain atrophy (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/278849000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">278849000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4551584&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4551584</a>, <a href="https://bioportal.bioontology.org/search?q=C0235946&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0235946</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0012444" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0012444</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0002059" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002059</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0012444" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0012444</a>]</span><br />
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<strong> NEOPLASIA </strong>
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- Skin cancer susceptibility <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3806570&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3806570</a>]</span><br />
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<strong> LABORATORY ABNORMALITIES </strong>
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- Patient cells show defective transcription-coupled and global genome nucleotide excision repair (NER) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3806571&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3806571</a>]</span><br />
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<strong> MISCELLANEOUS </strong>
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- 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 /> -
One patient with additional features of Fanconi anemia has been reported<br />
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<strong> MOLECULAR BASIS </strong>
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- Caused by mutation in the ERCC excision repair 4, endonuclease catalytic subunit gene (ERCC4, <a href="/entry/133520#0001">133520.0001</a>)<br />
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<p>A number sign (#) is used with this entry because of evidence that the disorder is caused by homozygous or compound heterozygous mutation in the ERCC4 gene (<a href="/entry/133520">133520</a>) on chromosome 16p13.</p>
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<strong>Description</strong>
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<p>Xeroderma pigmentosum is an autosomal recessive disorder characterized by sun sensitivity and increased skin sensitivity to UV light, as well as an increased risk of skin cancer associated with a defect in nucleotide excision repair (NER). The XPF form of XP is usually relatively mild compared to other forms. Patients with XPF tend to have later onset of skin cancer. Some patients with XPF may develop neurologic impairment or growth defects, and are then classified as having Cockayne syndrome (summary by <a href="#4" class="mim-tip-reference" title="Kashiyama, K., Nakazawa, Y., Pilz, D. T., Guo, C., Shimada, M., Sasaki, K., Fawcett, H., Wing, J. F., Lewin, S. O., Carr, L., Li, T.-S., Yoshiura, K., and 14 others. &lt;strong&gt;Malfunction of nuclease ERCC1-XPF results in diverse clinical manifestations and causes Cockayne syndrome, xeroderma pigmentosum, and Fanconi anemia.&lt;/strong&gt; Am. J. Hum. Genet. 92: 807-819, 2013.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23623389/&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;23623389&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=23623389[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ajhg.2013.04.007&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="23623389">Kashiyama et al., 2013</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23623389" 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 general phenotypic description and a discussion of genetic heterogeneity of xeroderma pigmentosa, see XPA (<a href="/entry/278700">278700</a>), and of Cockayne syndrome, see CSA (<a href="/entry/216400">216400</a>).</p>
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<p>Group F xeroderma pigmentosum had probably been observed only in Japan (<a href="#3" class="mim-tip-reference" title="Fujiwara, Y., Ichihashi, M., Uehara, Y., Matsumoto, A., Yamamoto, Y., Kano, Y., Tanakura, Y. &lt;strong&gt;Xeroderma pigmentosum groups C and F: additional assignments and a review of the subjects in Japan.&lt;/strong&gt; J. Radiat. Res. 26: 443-449, 1985.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/3834095/&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;3834095&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1269/jrr.26.443&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="3834095">Fujiwara et al., 1985</a>) until the report by <a href="#10" class="mim-tip-reference" title="Norris, P. G., Hawk, J. L. M., Avery, J. A., Giannelli, F. &lt;strong&gt;Xeroderma pigmentosum complementation group F in a non-Japanese patient.&lt;/strong&gt; J. Am. Acad. Derm. 18: 1185-1188, 1988.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/3372781/&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;3372781&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0190-9622(88)70121-8&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="3372781">Norris et al. (1988)</a> of a case in an English woman. The patient reported by <a href="#10" class="mim-tip-reference" title="Norris, P. G., Hawk, J. L. M., Avery, J. A., Giannelli, F. &lt;strong&gt;Xeroderma pigmentosum complementation group F in a non-Japanese patient.&lt;/strong&gt; J. Am. Acad. Derm. 18: 1185-1188, 1988.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/3372781/&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;3372781&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0190-9622(88)70121-8&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="3372781">Norris et al. (1988)</a> was a 22-year-old-white woman with mild cutaneous changes, no tumors, and normal sensitivity to monochromatic ultraviolet irradiation. Unscheduled DNA synthesis in cultured fibroblasts after UV irradiation was reduced to 13% of controls during the first 2 hours and rose to 45% of normal by 7 to 8 hours. The findings were consistent with a defect in nucleotide excision repair (NER). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=3372781+3834095" 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="#15" class="mim-tip-reference" title="Yamamura, K., Ichihashi, M., Hiramoto, T., Ogoshi, M., Nishioka, K., Fujiwara, Y. &lt;strong&gt;Clinical and photobiological characteristics of xeroderma pigmentosum complementation group F: a review of cases from Japan.&lt;/strong&gt; Brit. J. Derm. 121: 471-480, 1989.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/2696553/&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;2696553&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1365-2133.1989.tb15514.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="2696553">Yamamura et al. (1989)</a> described a 61-year-old female patient with XP assigned to complementation group F by the cell fusion-complementation method. Her fibroblasts in culture exhibited a defective DNA repair capacity of 10 to 15% unscheduled DNA synthesis and a 3-fold increased sensitivity to the lethal effects of ultraviolet light. The patient had mild clinical symptoms consisting of numerous pigmented freckles and a small number of seborrheic keratosis-like papules. She had no skin cancers in the sun-exposed areas and no neurologic abnormalities. <a href="#15" class="mim-tip-reference" title="Yamamura, K., Ichihashi, M., Hiramoto, T., Ogoshi, M., Nishioka, K., Fujiwara, Y. &lt;strong&gt;Clinical and photobiological characteristics of xeroderma pigmentosum complementation group F: a review of cases from Japan.&lt;/strong&gt; Brit. J. Derm. 121: 471-480, 1989.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/2696553/&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;2696553&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1365-2133.1989.tb15514.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="2696553">Yamamura et al. (1989)</a> reviewed 11 Japanese group F patients demonstrating very mild skin symptoms and no ocular or neuropsychiatric abnormalities. Single skin cancers occurred in only 3 of the 11 patients, with an average age of 52 years for their first skin malignancy. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=2696553" 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>Cockayne Syndrome</em></strong></p><p>
<a href="#7" class="mim-tip-reference" title="Moriwaki, S., Nishigori, C., Imamura, S., Yagi, T., Takahashi, C., Fujimoto, N., Takebe, H. &lt;strong&gt;A case of xeroderma pigmentosum complementation group F with neurological abnormalities.&lt;/strong&gt; Brit. J. Derm. 128: 91-94, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8427828/&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;8427828&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1365-2133.1993.tb00154.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="8427828">Moriwaki et al. (1993)</a> reported a 48-year-old Japanese man with xeroderma pigmentosum associated with mental retardation, cerebral atrophy, and cerebellar ataxia. Genetic complementation tests by cell fusion with polyethylene glycol revealed that the patient belonged to group F. He died of bile duct cancer at the age of 50. <a href="#7" class="mim-tip-reference" title="Moriwaki, S., Nishigori, C., Imamura, S., Yagi, T., Takahashi, C., Fujimoto, N., Takebe, H. &lt;strong&gt;A case of xeroderma pigmentosum complementation group F with neurological abnormalities.&lt;/strong&gt; Brit. J. Derm. 128: 91-94, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8427828/&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;8427828&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1365-2133.1993.tb00154.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="8427828">Moriwaki et al. (1993)</a> stated that this was the first report of an XPF patient with neurologic abnormalities. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8427828" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#13" class="mim-tip-reference" title="Sijbers, A. M., van Voorst Vader, P. C., Snoek, J. W., Raams, A., Jaspers, N. G. J., Kleijer, W. J. &lt;strong&gt;Homozygous R788W point mutation in the XPF gene of a patient with xeroderma pigmentosum and late-onset neurologic disease.&lt;/strong&gt; J. Invest. Derm. 110: 832-836, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9579555/&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;9579555&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1046/j.1523-1747.1998.00171.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="9579555">Sijbers et al. (1998)</a> reported a Caucasian patient with XPF. He had mild ocular photophobia from childhood and acute skin reactions occurred upon exposure to sunlight. After age 27, he developed several basal and squamous cell carcinomas. In his late forties, he developed progressive neurologic symptoms, including intellectual decline, mild chorea and ataxia, and marked cerebral and cerebellar atrophy. <a href="#13" class="mim-tip-reference" title="Sijbers, A. M., van Voorst Vader, P. C., Snoek, J. W., Raams, A., Jaspers, N. G. J., Kleijer, W. J. &lt;strong&gt;Homozygous R788W point mutation in the XPF gene of a patient with xeroderma pigmentosum and late-onset neurologic disease.&lt;/strong&gt; J. Invest. Derm. 110: 832-836, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9579555/&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;9579555&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1046/j.1523-1747.1998.00171.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="9579555">Sijbers et al. (1998)</a> stated that such neurologic abnormalities were unusual in XPF, having been described in only 1 of 17 other XPF individuals. The patient's 5-fold reduced activity of nucleotide excision repair in cultured cells, combined with moderately affected cell survival and DNA replication after UV exposure, was typical of XPF. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9579555" 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="Kashiyama, K., Nakazawa, Y., Pilz, D. T., Guo, C., Shimada, M., Sasaki, K., Fawcett, H., Wing, J. F., Lewin, S. O., Carr, L., Li, T.-S., Yoshiura, K., and 14 others. &lt;strong&gt;Malfunction of nuclease ERCC1-XPF results in diverse clinical manifestations and causes Cockayne syndrome, xeroderma pigmentosum, and Fanconi anemia.&lt;/strong&gt; Am. J. Hum. Genet. 92: 807-819, 2013.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23623389/&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;23623389&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=23623389[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ajhg.2013.04.007&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="23623389">Kashiyama et al. (2013)</a> reported a 16-year-old boy (CS1USAU) with Cockayne syndrome. He developed normally for the first year without obvious abnormalities, except for the microcephaly. At age 5 years, he developed multiple unusual plantar warts on his hands and forearms, unusual freckling, and sun sensitivity. Examination at age 7 years showed short stature, poor growth, and microcephaly. He had deep-set eyes, progressive scoliosis, and multiple contractures in his feet; he required lengthening of the Achilles tendon because of muscle cramps in his hamstrings and calves. His skin was deeply pigmented with rashes and flat freckles. Other features included hearing impairment, learning disabilities, attention deficit-hyperactivity disorder, migraines, and feeding difficulties. Brain MRI showed some delayed myelination and basal ganglia shortening. A second unrelated patient (XPCS1CD) had a more complex phenotype comprising XPF, Cockayne syndrome, and Fanconi anemia (see FANCQ; <a href="/entry/615272">615272</a>). She showed intrauterine growth failure and later had short stature and microcephaly. Development was globally delayed. She was noted to have sun sensitivity with severe sunburns at age 18 months, and was carefully photoprotected. She developed sensorineural hearing loss at age 5 years, followed by progressive ataxia, tremor, weakness, and nystagmus. Between ages 6 and 9 years, she became pancytopenic, consistent with bone marrow failure, and at age 10, she developed hypertension and severe proteinuria, consistent with renal failure. Examination at age 11 showed microcephaly, short stature, deep-set eyes, prominent nose, small teeth, and freckling over the nose and cheeks. The skin had an aged appearance, and palmar erythema, plane warts, and cafe-au-lait macules were present. Liver function was normal; renal biopsy showed focal segmental glomerular sclerosis, thickening of the capillary basement membrane, interstitial fibrosis, and tubular atrophy. She died of renal failure at age 12 years. Dermal fibroblasts from both patients showed significantly decreased RNA synthesis activity compared to controls, indicating a deficiency in transcription-coupled NER (TC-NER), as expected for Cockayne syndrome cells, as well as a decrease in unscheduled DNA synthesis, indicating a defect in global genome NER (GG-NER). Complementation studies showed that the 2 patients could be assigned to group XPF. Both cell lines were also sensitive to the crosslinking agent mitomycin-C, indicating a defect in the repair of DNA interstrand crosslinks (ICL). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23623389" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><a href="#11" class="mim-tip-reference" title="Saxon, P. J., Schultz, R. A., Stanbridge, E. J., Friedberg, E. C. &lt;strong&gt;Human chromosome 15 confers partial complementation of phenotypes to xeroderma pigmentosum group F cells.&lt;/strong&gt; Am. J. Hum. Genet. 44: 474-485, 1989.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/2929593/&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;2929593&lt;/a&gt;]" pmid="2929593">Saxon et al. (1989)</a> found that microcell-mediated transfer of a single human chromosome from repair-proficient human cells to XP cells of complementation group F resulted in partial complementation of repair-defective phenotypes. They identified the complementing chromosome as human chromosome 15 by cytogenetic and molecular analysis. About 20% of the resistance of wildtype cells to killing by UV radiation or by the UV-mimetic chemical 4-nitroquinoline-1-oxide, as well as partial repair synthesis of DNA measured as unscheduled DNA synthesis, resulted from the transfer of the chromosome. Although the work seemed to indicate that the gene on chromosome 15 carries a mutation determining XPF, the reason for the incomplete correction was unclear. Because of incomplete correction, the assignment of XPF to chromosome 15 was considered in limbo (<a href="#1" class="mim-tip-reference" title="Cleaver, J. E. &lt;strong&gt;Personal Communication.&lt;/strong&gt; San Francisco, Calif. 1/15/1993."None>Cleaver, 1993</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=2929593" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>By means of fluorescence in situ hybridization, <a href="#12" class="mim-tip-reference" title="Sijbers, A. M., de Laat, W. L., Ariza, R. R., Biggerstaff, M., Wei, Y.-F., Moggs, J. G., Carter, K. C., Shell, B. K., Evans, E., de Jong, M. C., Rademakers, S., de Rooij, J., Jaspers, N. G. J., Hoeijmakers, J. H. J., Wood, R. D. &lt;strong&gt;Xeroderma pigmentosum group F caused by a defect in a structure-specific DNA repair endonuclease.&lt;/strong&gt; Cell 86: 811-822, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8797827/&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;8797827&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0092-8674(00)80155-5&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="8797827">Sijbers et al. (1996)</a> mapped the XPF gene to 16p13.2-p13.1. This corresponds to the location of ERCC4, a human repair gene complementing rodent nucleotide excision repair mutants of group 4, that was originally identified using cell hybrids (<a href="#5" class="mim-tip-reference" title="Liu, P., Siciliano, J., White, B., Legerski, R., Callen, D., Reeders, S., Siciliano, M. J., Thompson, L. H. &lt;strong&gt;Regional mapping of human DNA excision-repair gene ERCC4 to chromosome 16p13.13-p13.2.&lt;/strong&gt; Mutagenesis 8: 199-205, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8332082/&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;8332082&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/mutage/8.3.199&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="8332082">Liu et al., 1993</a>) and a genomic clone (<a href="#14" class="mim-tip-reference" title="Thompson, L. H., Brookman, K. W., Weber, C.-A., Salazar, E. P., Reardon, J. T., Sancar, A., Deng, Z. M., Siciliano, M. J. &lt;strong&gt;Molecular cloning of the human nucleotide excision-repair gene ERCC4.&lt;/strong&gt; Proc. Nat. Acad. Sci. 91: 6855-6859, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8041709/&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;8041709&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1073/pnas.91.15.6855&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="8041709">Thompson et al., 1994</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=8041709+8332082+8797827" 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 the patient with XPF reported by <a href="#10" class="mim-tip-reference" title="Norris, P. G., Hawk, J. L. M., Avery, J. A., Giannelli, F. &lt;strong&gt;Xeroderma pigmentosum complementation group F in a non-Japanese patient.&lt;/strong&gt; J. Am. Acad. Derm. 18: 1185-1188, 1988.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/3372781/&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;3372781&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0190-9622(88)70121-8&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="3372781">Norris et al. (1988)</a>, <a href="#12" class="mim-tip-reference" title="Sijbers, A. M., de Laat, W. L., Ariza, R. R., Biggerstaff, M., Wei, Y.-F., Moggs, J. G., Carter, K. C., Shell, B. K., Evans, E., de Jong, M. C., Rademakers, S., de Rooij, J., Jaspers, N. G. J., Hoeijmakers, J. H. J., Wood, R. D. &lt;strong&gt;Xeroderma pigmentosum group F caused by a defect in a structure-specific DNA repair endonuclease.&lt;/strong&gt; Cell 86: 811-822, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8797827/&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;8797827&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0092-8674(00)80155-5&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="8797827">Sijbers et al. (1996)</a> identified compound heterozygous mutations in the ERCC4 gene (<a href="/entry/133520#0001">133520.0001</a> and <a href="/entry/133520#0002">133520.0002</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=3372781+8797827" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In a patient with XPF and late-onset neurologic features, <a href="#13" class="mim-tip-reference" title="Sijbers, A. M., van Voorst Vader, P. C., Snoek, J. W., Raams, A., Jaspers, N. G. J., Kleijer, W. J. &lt;strong&gt;Homozygous R788W point mutation in the XPF gene of a patient with xeroderma pigmentosum and late-onset neurologic disease.&lt;/strong&gt; J. Invest. Derm. 110: 832-836, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9579555/&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;9579555&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1046/j.1523-1747.1998.00171.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="9579555">Sijbers et al. (1998)</a> identified a homozygous mutation in the ERCC4 gene (R788W; <a href="/entry/133520#0002">133520.0002</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9579555" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#2" class="mim-tip-reference" title="Cleaver, J. E., Thompson, L. H., Richardson, A. S., States, J. C. &lt;strong&gt;A summary of mutations in the UV-sensitive disorders: xeroderma pigmentosum, Cockayne syndrome, and trichothiodystrophy.&lt;/strong&gt; Hum. Mutat. 14: 9-22, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10447254/&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;10447254&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/(SICI)1098-1004(1999)14:1&lt;9::AID-HUMU2&gt;3.0.CO;2-6&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="10447254">Cleaver et al. (1999)</a> tabulated the mutations that had been reported in the XPF gene. These included 8 mutations reported by <a href="#6" class="mim-tip-reference" title="Matsumura, Y., Nishigori, C., Yagi, T., Imamura, S., Takebe, H. &lt;strong&gt;Characterization of molecular defects in xeroderma pigmentosum group F in relation to its clinically mild symptoms.&lt;/strong&gt; Hum. Molec. Genet. 7: 969-974, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9580660/&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;9580660&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/7.6.969&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="9580660">Matsumura et al. (1998)</a>. Their patients varied in age from 22 to 73 years. The XPF complementation group is rare and the majority of cases have been found in Japan. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=10447254+9580660" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In 2 unrelated patients with XPF and Cockayne syndrome, <a href="#4" class="mim-tip-reference" title="Kashiyama, K., Nakazawa, Y., Pilz, D. T., Guo, C., Shimada, M., Sasaki, K., Fawcett, H., Wing, J. F., Lewin, S. O., Carr, L., Li, T.-S., Yoshiura, K., and 14 others. &lt;strong&gt;Malfunction of nuclease ERCC1-XPF results in diverse clinical manifestations and causes Cockayne syndrome, xeroderma pigmentosum, and Fanconi anemia.&lt;/strong&gt; Am. J. Hum. Genet. 92: 807-819, 2013.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23623389/&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;23623389&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=23623389[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.ajhg.2013.04.007&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="23623389">Kashiyama et al. (2013)</a> identified compound heterozygous mutations in the ERCC4 gene (<a href="/entry/133520#0008">133520.0008</a>-<a href="/entry/133520#0010">133520.0010</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23623389" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><a href="#8" class="mim-tip-reference" title="Munoz, P., Blanco, R., Flores, J. M., Blasco, M. A. &lt;strong&gt;XPF nuclease-dependent telomere loss and increased DNA damage in mice overexpressing TRF2 result in premature aging and cancer.&lt;/strong&gt; Nature Genet. 37: 1063-1071, 2005.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16142233/&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;16142233&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1633&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="16142233">Munoz et al. (2005)</a> found that transgenic mice that overexpress the telomere-binding protein TRF2 (<a href="/entry/602027">602027</a>) had a severe phenotype in the skin in response to light, consisting of premature skin deterioration, hyperpigmentation, and increased skin cancer, resembling xeroderma pigmentosum. Keratinocytes from these mice were hypersensitive to ultraviolet irradiation and DNA crosslinking agents. The skin cells of these mice had marked telomere shortening, loss of the telomeric G-strand overhang, and increased chromosomal instability. <a href="#8" class="mim-tip-reference" title="Munoz, P., Blanco, R., Flores, J. M., Blasco, M. A. &lt;strong&gt;XPF nuclease-dependent telomere loss and increased DNA damage in mice overexpressing TRF2 result in premature aging and cancer.&lt;/strong&gt; Nature Genet. 37: 1063-1071, 2005.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16142233/&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;16142233&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1633&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="16142233">Munoz et al. (2005)</a> found that telomere loss in these mice was mediated by XPF. The findings suggested that TRF2 provides a crucial link between telomere function and ultraviolet-induced damage repair, whose alteration underlies genomic instability, cancer, and aging. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16142233" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="seeAlso" class="mim-anchor"></a>
<h4 href="#mimSeeAlsoFold" id="mimSeeAlsoToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>See Also:</strong>
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<span class="mim-text-font">
<a href="#Nishigori1986" class="mim-tip-reference" title="Nishigori, C., Ishizaki, K., Takebe, H., Imamura, S., Hayakawa, M. &lt;strong&gt;A case of xeroderma pigmentosum group F with late onset of clinical symptoms. (Letter)&lt;/strong&gt; Arch. Derm. 122: 510-511, 1986.">Nishigori et al. (1986)</a>
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<a id="references"class="mim-anchor"></a>
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<span class="mim-font">
<span id="mimReferencesToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>REFERENCES</strong>
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<div id="mimReferencesFold" class="collapse in mimTextToggleFold">
<ol>
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<a id="1" class="mim-anchor"></a>
<a id="Cleaver1993" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Cleaver, J. E.
<strong>Personal Communication.</strong>
San Francisco, Calif. 1/15/1993.
</p>
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<a id="2" class="mim-anchor"></a>
<a id="Cleaver1999" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Cleaver, J. E., Thompson, L. H., Richardson, A. S., States, J. C.
<strong>A summary of mutations in the UV-sensitive disorders: xeroderma pigmentosum, Cockayne syndrome, and trichothiodystrophy.</strong>
Hum. Mutat. 14: 9-22, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10447254/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10447254</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10447254" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/(SICI)1098-1004(1999)14:1&lt;9::AID-HUMU2&gt;3.0.CO;2-6" target="_blank">Full Text</a>]
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<a id="3" class="mim-anchor"></a>
<a id="Fujiwara1985" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Fujiwara, Y., Ichihashi, M., Uehara, Y., Matsumoto, A., Yamamoto, Y., Kano, Y., Tanakura, Y.
<strong>Xeroderma pigmentosum groups C and F: additional assignments and a review of the subjects in Japan.</strong>
J. Radiat. Res. 26: 443-449, 1985.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/3834095/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">3834095</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3834095" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1269/jrr.26.443" target="_blank">Full Text</a>]
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<a id="4" class="mim-anchor"></a>
<a id="Kashiyama2013" class="mim-anchor"></a>
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<p class="mim-text-font">
Kashiyama, K., Nakazawa, Y., Pilz, D. T., Guo, C., Shimada, M., Sasaki, K., Fawcett, H., Wing, J. F., Lewin, S. O., Carr, L., Li, T.-S., Yoshiura, K., and 14 others.
<strong>Malfunction of nuclease ERCC1-XPF results in diverse clinical manifestations and causes Cockayne syndrome, xeroderma pigmentosum, and Fanconi anemia.</strong>
Am. J. Hum. Genet. 92: 807-819, 2013.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/23623389/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">23623389</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=23623389[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=23623389" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/j.ajhg.2013.04.007" target="_blank">Full Text</a>]
</p>
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<a id="5" class="mim-anchor"></a>
<a id="Liu1993" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Liu, P., Siciliano, J., White, B., Legerski, R., Callen, D., Reeders, S., Siciliano, M. J., Thompson, L. H.
<strong>Regional mapping of human DNA excision-repair gene ERCC4 to chromosome 16p13.13-p13.2.</strong>
Mutagenesis 8: 199-205, 1993.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8332082/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8332082</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8332082" 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/mutage/8.3.199" target="_blank">Full Text</a>]
</p>
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<a id="6" class="mim-anchor"></a>
<a id="Matsumura1998" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Matsumura, Y., Nishigori, C., Yagi, T., Imamura, S., Takebe, H.
<strong>Characterization of molecular defects in xeroderma pigmentosum group F in relation to its clinically mild symptoms.</strong>
Hum. Molec. Genet. 7: 969-974, 1998.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9580660/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9580660</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9580660" 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/7.6.969" target="_blank">Full Text</a>]
</p>
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<a id="7" class="mim-anchor"></a>
<a id="Moriwaki1993" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Moriwaki, S., Nishigori, C., Imamura, S., Yagi, T., Takahashi, C., Fujimoto, N., Takebe, H.
<strong>A case of xeroderma pigmentosum complementation group F with neurological abnormalities.</strong>
Brit. J. Derm. 128: 91-94, 1993.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8427828/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8427828</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8427828" 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.1365-2133.1993.tb00154.x" target="_blank">Full Text</a>]
</p>
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<a id="8" class="mim-anchor"></a>
<a id="Munoz2005" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Munoz, P., Blanco, R., Flores, J. M., Blasco, M. A.
<strong>XPF nuclease-dependent telomere loss and increased DNA damage in mice overexpressing TRF2 result in premature aging and cancer.</strong>
Nature Genet. 37: 1063-1071, 2005.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/16142233/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">16142233</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16142233" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/ng1633" target="_blank">Full Text</a>]
</p>
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<a id="9" class="mim-anchor"></a>
<a id="Nishigori1986" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Nishigori, C., Ishizaki, K., Takebe, H., Imamura, S., Hayakawa, M.
<strong>A case of xeroderma pigmentosum group F with late onset of clinical symptoms. (Letter)</strong>
Arch. Derm. 122: 510-511, 1986.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/3707166/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">3707166</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3707166" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
</p>
</div>
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<a id="10" class="mim-anchor"></a>
<a id="Norris1988" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Norris, P. G., Hawk, J. L. M., Avery, J. A., Giannelli, F.
<strong>Xeroderma pigmentosum complementation group F in a non-Japanese patient.</strong>
J. Am. Acad. Derm. 18: 1185-1188, 1988.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/3372781/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">3372781</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=3372781" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/s0190-9622(88)70121-8" target="_blank">Full Text</a>]
</p>
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<a id="11" class="mim-anchor"></a>
<a id="Saxon1989" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Saxon, P. J., Schultz, R. A., Stanbridge, E. J., Friedberg, E. C.
<strong>Human chromosome 15 confers partial complementation of phenotypes to xeroderma pigmentosum group F cells.</strong>
Am. J. Hum. Genet. 44: 474-485, 1989.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/2929593/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">2929593</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=2929593" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
</p>
</div>
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<a id="12" class="mim-anchor"></a>
<a id="Sijbers1996" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Sijbers, A. M., de Laat, W. L., Ariza, R. R., Biggerstaff, M., Wei, Y.-F., Moggs, J. G., Carter, K. C., Shell, B. K., Evans, E., de Jong, M. C., Rademakers, S., de Rooij, J., Jaspers, N. G. J., Hoeijmakers, J. H. J., Wood, R. D.
<strong>Xeroderma pigmentosum group F caused by a defect in a structure-specific DNA repair endonuclease.</strong>
Cell 86: 811-822, 1996.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8797827/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8797827</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8797827" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/s0092-8674(00)80155-5" target="_blank">Full Text</a>]
</p>
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<a id="13" class="mim-anchor"></a>
<a id="Sijbers1998" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Sijbers, A. M., van Voorst Vader, P. C., Snoek, J. W., Raams, A., Jaspers, N. G. J., Kleijer, W. J.
<strong>Homozygous R788W point mutation in the XPF gene of a patient with xeroderma pigmentosum and late-onset neurologic disease.</strong>
J. Invest. Derm. 110: 832-836, 1998.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9579555/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9579555</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9579555" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1046/j.1523-1747.1998.00171.x" target="_blank">Full Text</a>]
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<a id="Thompson1994" class="mim-anchor"></a>
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<p class="mim-text-font">
Thompson, L. H., Brookman, K. W., Weber, C.-A., Salazar, E. P., Reardon, J. T., Sancar, A., Deng, Z. M., Siciliano, M. J.
<strong>Molecular cloning of the human nucleotide excision-repair gene ERCC4.</strong>
Proc. Nat. Acad. Sci. 91: 6855-6859, 1994.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8041709/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8041709</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8041709" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1073/pnas.91.15.6855" target="_blank">Full Text</a>]
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<a id="15" class="mim-anchor"></a>
<a id="Yamamura1989" class="mim-anchor"></a>
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Yamamura, K., Ichihashi, M., Hiramoto, T., Ogoshi, M., Nishioka, K., Fujiwara, Y.
<strong>Clinical and photobiological characteristics of xeroderma pigmentosum complementation group F: a review of cases from Japan.</strong>
Brit. J. Derm. 121: 471-480, 1989.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/2696553/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">2696553</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=2696553" 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.1365-2133.1989.tb15514.x" target="_blank">Full Text</a>]
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Cassandra L. Kniffin - updated : 6/20/2013
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Victor A. McKusick - updated : 10/13/2005<br>Victor A. McKusick - updated : 7/21/1999
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Victor A. McKusick : 6/4/1986
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carol : 07/26/2013
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alopez : 7/3/2013<br>ckniffin : 6/20/2013<br>alopez : 12/3/2008<br>alopez : 10/13/2005<br>terry : 10/13/2005<br>jlewis : 7/30/1999<br>terry : 7/21/1999<br>psherman : 5/8/1998<br>terry : 9/15/1997<br>mark : 10/26/1996<br>mark : 10/26/1996<br>terry : 10/17/1996<br>warfield : 4/20/1994<br>mimadm : 3/12/1994<br>carol : 12/17/1993<br>carol : 3/10/1993<br>carol : 2/9/1993<br>carol : 1/21/1993
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<span class="mim-font">
<strong>#</strong> 278760
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XERODERMA PIGMENTOSUM, COMPLEMENTATION GROUP F; XPF
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<span class="mim-font">
<em>Alternative titles; symbols</em>
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XP, GROUP F<br />
XERODERMA PIGMENTOSUM VI; XP6
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Other entities represented in this entry:
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XERODERMA PIGMENTOSUM, TYPE F/COCKAYNE SYNDROME, INCLUDED; XPF/CS, INCLUDED
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<strong>SNOMEDCT:</strong> 42530008; &nbsp;
<strong>ORPHA:</strong> 220295, 910; &nbsp;
<strong>DO:</strong> 0110848; &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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16p13.12
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Xeroderma pigmentosum, group F
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278760
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Autosomal recessive
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3
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ERCC4
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133520
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16p13.12
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Xeroderma pigmentosum, type F/Cockayne syndrome
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278760
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Autosomal recessive
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3
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ERCC4
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133520
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that the disorder is caused by homozygous or compound heterozygous mutation in the ERCC4 gene (133520) on chromosome 16p13.</p>
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<strong>Description</strong>
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<p>Xeroderma pigmentosum is an autosomal recessive disorder characterized by sun sensitivity and increased skin sensitivity to UV light, as well as an increased risk of skin cancer associated with a defect in nucleotide excision repair (NER). The XPF form of XP is usually relatively mild compared to other forms. Patients with XPF tend to have later onset of skin cancer. Some patients with XPF may develop neurologic impairment or growth defects, and are then classified as having Cockayne syndrome (summary by Kashiyama et al., 2013). </p><p>For a general phenotypic description and a discussion of genetic heterogeneity of xeroderma pigmentosa, see XPA (278700), and of Cockayne syndrome, see CSA (216400).</p>
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<strong>Clinical Features</strong>
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<p>Group F xeroderma pigmentosum had probably been observed only in Japan (Fujiwara et al., 1985) until the report by Norris et al. (1988) of a case in an English woman. The patient reported by Norris et al. (1988) was a 22-year-old-white woman with mild cutaneous changes, no tumors, and normal sensitivity to monochromatic ultraviolet irradiation. Unscheduled DNA synthesis in cultured fibroblasts after UV irradiation was reduced to 13% of controls during the first 2 hours and rose to 45% of normal by 7 to 8 hours. The findings were consistent with a defect in nucleotide excision repair (NER). </p><p>Yamamura et al. (1989) described a 61-year-old female patient with XP assigned to complementation group F by the cell fusion-complementation method. Her fibroblasts in culture exhibited a defective DNA repair capacity of 10 to 15% unscheduled DNA synthesis and a 3-fold increased sensitivity to the lethal effects of ultraviolet light. The patient had mild clinical symptoms consisting of numerous pigmented freckles and a small number of seborrheic keratosis-like papules. She had no skin cancers in the sun-exposed areas and no neurologic abnormalities. Yamamura et al. (1989) reviewed 11 Japanese group F patients demonstrating very mild skin symptoms and no ocular or neuropsychiatric abnormalities. Single skin cancers occurred in only 3 of the 11 patients, with an average age of 52 years for their first skin malignancy. </p><p><strong><em>Cockayne Syndrome</em></strong></p><p>
Moriwaki et al. (1993) reported a 48-year-old Japanese man with xeroderma pigmentosum associated with mental retardation, cerebral atrophy, and cerebellar ataxia. Genetic complementation tests by cell fusion with polyethylene glycol revealed that the patient belonged to group F. He died of bile duct cancer at the age of 50. Moriwaki et al. (1993) stated that this was the first report of an XPF patient with neurologic abnormalities. </p><p>Sijbers et al. (1998) reported a Caucasian patient with XPF. He had mild ocular photophobia from childhood and acute skin reactions occurred upon exposure to sunlight. After age 27, he developed several basal and squamous cell carcinomas. In his late forties, he developed progressive neurologic symptoms, including intellectual decline, mild chorea and ataxia, and marked cerebral and cerebellar atrophy. Sijbers et al. (1998) stated that such neurologic abnormalities were unusual in XPF, having been described in only 1 of 17 other XPF individuals. The patient's 5-fold reduced activity of nucleotide excision repair in cultured cells, combined with moderately affected cell survival and DNA replication after UV exposure, was typical of XPF. </p><p>Kashiyama et al. (2013) reported a 16-year-old boy (CS1USAU) with Cockayne syndrome. He developed normally for the first year without obvious abnormalities, except for the microcephaly. At age 5 years, he developed multiple unusual plantar warts on his hands and forearms, unusual freckling, and sun sensitivity. Examination at age 7 years showed short stature, poor growth, and microcephaly. He had deep-set eyes, progressive scoliosis, and multiple contractures in his feet; he required lengthening of the Achilles tendon because of muscle cramps in his hamstrings and calves. His skin was deeply pigmented with rashes and flat freckles. Other features included hearing impairment, learning disabilities, attention deficit-hyperactivity disorder, migraines, and feeding difficulties. Brain MRI showed some delayed myelination and basal ganglia shortening. A second unrelated patient (XPCS1CD) had a more complex phenotype comprising XPF, Cockayne syndrome, and Fanconi anemia (see FANCQ; 615272). She showed intrauterine growth failure and later had short stature and microcephaly. Development was globally delayed. She was noted to have sun sensitivity with severe sunburns at age 18 months, and was carefully photoprotected. She developed sensorineural hearing loss at age 5 years, followed by progressive ataxia, tremor, weakness, and nystagmus. Between ages 6 and 9 years, she became pancytopenic, consistent with bone marrow failure, and at age 10, she developed hypertension and severe proteinuria, consistent with renal failure. Examination at age 11 showed microcephaly, short stature, deep-set eyes, prominent nose, small teeth, and freckling over the nose and cheeks. The skin had an aged appearance, and palmar erythema, plane warts, and cafe-au-lait macules were present. Liver function was normal; renal biopsy showed focal segmental glomerular sclerosis, thickening of the capillary basement membrane, interstitial fibrosis, and tubular atrophy. She died of renal failure at age 12 years. Dermal fibroblasts from both patients showed significantly decreased RNA synthesis activity compared to controls, indicating a deficiency in transcription-coupled NER (TC-NER), as expected for Cockayne syndrome cells, as well as a decrease in unscheduled DNA synthesis, indicating a defect in global genome NER (GG-NER). Complementation studies showed that the 2 patients could be assigned to group XPF. Both cell lines were also sensitive to the crosslinking agent mitomycin-C, indicating a defect in the repair of DNA interstrand crosslinks (ICL). </p>
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<strong>Mapping</strong>
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<p>Saxon et al. (1989) found that microcell-mediated transfer of a single human chromosome from repair-proficient human cells to XP cells of complementation group F resulted in partial complementation of repair-defective phenotypes. They identified the complementing chromosome as human chromosome 15 by cytogenetic and molecular analysis. About 20% of the resistance of wildtype cells to killing by UV radiation or by the UV-mimetic chemical 4-nitroquinoline-1-oxide, as well as partial repair synthesis of DNA measured as unscheduled DNA synthesis, resulted from the transfer of the chromosome. Although the work seemed to indicate that the gene on chromosome 15 carries a mutation determining XPF, the reason for the incomplete correction was unclear. Because of incomplete correction, the assignment of XPF to chromosome 15 was considered in limbo (Cleaver, 1993). </p><p>By means of fluorescence in situ hybridization, Sijbers et al. (1996) mapped the XPF gene to 16p13.2-p13.1. This corresponds to the location of ERCC4, a human repair gene complementing rodent nucleotide excision repair mutants of group 4, that was originally identified using cell hybrids (Liu et al., 1993) and a genomic clone (Thompson et al., 1994). </p>
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<strong>Molecular Genetics</strong>
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<p>In the patient with XPF reported by Norris et al. (1988), Sijbers et al. (1996) identified compound heterozygous mutations in the ERCC4 gene (133520.0001 and 133520.0002). </p><p>In a patient with XPF and late-onset neurologic features, Sijbers et al. (1998) identified a homozygous mutation in the ERCC4 gene (R788W; 133520.0002). </p><p>Cleaver et al. (1999) tabulated the mutations that had been reported in the XPF gene. These included 8 mutations reported by Matsumura et al. (1998). Their patients varied in age from 22 to 73 years. The XPF complementation group is rare and the majority of cases have been found in Japan. </p><p>In 2 unrelated patients with XPF and Cockayne syndrome, Kashiyama et al. (2013) identified compound heterozygous mutations in the ERCC4 gene (133520.0008-133520.0010). </p>
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<strong>Animal Model</strong>
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<p>Munoz et al. (2005) found that transgenic mice that overexpress the telomere-binding protein TRF2 (602027) had a severe phenotype in the skin in response to light, consisting of premature skin deterioration, hyperpigmentation, and increased skin cancer, resembling xeroderma pigmentosum. Keratinocytes from these mice were hypersensitive to ultraviolet irradiation and DNA crosslinking agents. The skin cells of these mice had marked telomere shortening, loss of the telomeric G-strand overhang, and increased chromosomal instability. Munoz et al. (2005) found that telomere loss in these mice was mediated by XPF. The findings suggested that TRF2 provides a crucial link between telomere function and ultraviolet-induced damage repair, whose alteration underlies genomic instability, cancer, and aging. </p>
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<h4>
<span class="mim-font">
<strong>See Also:</strong>
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</h4>
<span class="mim-text-font">
Nishigori et al. (1986)
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<h4>
<span class="mim-font">
<strong>REFERENCES</strong>
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<ol>
<li>
<p class="mim-text-font">
Cleaver, J. E.
<strong>Personal Communication.</strong>
San Francisco, Calif. 1/15/1993.
</p>
</li>
<li>
<p class="mim-text-font">
Cleaver, J. E., Thompson, L. H., Richardson, A. S., States, J. C.
<strong>A summary of mutations in the UV-sensitive disorders: xeroderma pigmentosum, Cockayne syndrome, and trichothiodystrophy.</strong>
Hum. Mutat. 14: 9-22, 1999.
[PubMed: 10447254]
[Full Text: https://doi.org/10.1002/(SICI)1098-1004(1999)14:1&lt;9::AID-HUMU2&gt;3.0.CO;2-6]
</p>
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<li>
<p class="mim-text-font">
Fujiwara, Y., Ichihashi, M., Uehara, Y., Matsumoto, A., Yamamoto, Y., Kano, Y., Tanakura, Y.
<strong>Xeroderma pigmentosum groups C and F: additional assignments and a review of the subjects in Japan.</strong>
J. Radiat. Res. 26: 443-449, 1985.
[PubMed: 3834095]
[Full Text: https://doi.org/10.1269/jrr.26.443]
</p>
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<li>
<p class="mim-text-font">
Kashiyama, K., Nakazawa, Y., Pilz, D. T., Guo, C., Shimada, M., Sasaki, K., Fawcett, H., Wing, J. F., Lewin, S. O., Carr, L., Li, T.-S., Yoshiura, K., and 14 others.
<strong>Malfunction of nuclease ERCC1-XPF results in diverse clinical manifestations and causes Cockayne syndrome, xeroderma pigmentosum, and Fanconi anemia.</strong>
Am. J. Hum. Genet. 92: 807-819, 2013.
[PubMed: 23623389]
[Full Text: https://doi.org/10.1016/j.ajhg.2013.04.007]
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<li>
<p class="mim-text-font">
Liu, P., Siciliano, J., White, B., Legerski, R., Callen, D., Reeders, S., Siciliano, M. J., Thompson, L. H.
<strong>Regional mapping of human DNA excision-repair gene ERCC4 to chromosome 16p13.13-p13.2.</strong>
Mutagenesis 8: 199-205, 1993.
[PubMed: 8332082]
[Full Text: https://doi.org/10.1093/mutage/8.3.199]
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<p class="mim-text-font">
Matsumura, Y., Nishigori, C., Yagi, T., Imamura, S., Takebe, H.
<strong>Characterization of molecular defects in xeroderma pigmentosum group F in relation to its clinically mild symptoms.</strong>
Hum. Molec. Genet. 7: 969-974, 1998.
[PubMed: 9580660]
[Full Text: https://doi.org/10.1093/hmg/7.6.969]
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<li>
<p class="mim-text-font">
Moriwaki, S., Nishigori, C., Imamura, S., Yagi, T., Takahashi, C., Fujimoto, N., Takebe, H.
<strong>A case of xeroderma pigmentosum complementation group F with neurological abnormalities.</strong>
Brit. J. Derm. 128: 91-94, 1993.
[PubMed: 8427828]
[Full Text: https://doi.org/10.1111/j.1365-2133.1993.tb00154.x]
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<li>
<p class="mim-text-font">
Munoz, P., Blanco, R., Flores, J. M., Blasco, M. A.
<strong>XPF nuclease-dependent telomere loss and increased DNA damage in mice overexpressing TRF2 result in premature aging and cancer.</strong>
Nature Genet. 37: 1063-1071, 2005.
[PubMed: 16142233]
[Full Text: https://doi.org/10.1038/ng1633]
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<p class="mim-text-font">
Nishigori, C., Ishizaki, K., Takebe, H., Imamura, S., Hayakawa, M.
<strong>A case of xeroderma pigmentosum group F with late onset of clinical symptoms. (Letter)</strong>
Arch. Derm. 122: 510-511, 1986.
[PubMed: 3707166]
</p>
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<li>
<p class="mim-text-font">
Norris, P. G., Hawk, J. L. M., Avery, J. A., Giannelli, F.
<strong>Xeroderma pigmentosum complementation group F in a non-Japanese patient.</strong>
J. Am. Acad. Derm. 18: 1185-1188, 1988.
[PubMed: 3372781]
[Full Text: https://doi.org/10.1016/s0190-9622(88)70121-8]
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<p class="mim-text-font">
Saxon, P. J., Schultz, R. A., Stanbridge, E. J., Friedberg, E. C.
<strong>Human chromosome 15 confers partial complementation of phenotypes to xeroderma pigmentosum group F cells.</strong>
Am. J. Hum. Genet. 44: 474-485, 1989.
[PubMed: 2929593]
</p>
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<li>
<p class="mim-text-font">
Sijbers, A. M., de Laat, W. L., Ariza, R. R., Biggerstaff, M., Wei, Y.-F., Moggs, J. G., Carter, K. C., Shell, B. K., Evans, E., de Jong, M. C., Rademakers, S., de Rooij, J., Jaspers, N. G. J., Hoeijmakers, J. H. J., Wood, R. D.
<strong>Xeroderma pigmentosum group F caused by a defect in a structure-specific DNA repair endonuclease.</strong>
Cell 86: 811-822, 1996.
[PubMed: 8797827]
[Full Text: https://doi.org/10.1016/s0092-8674(00)80155-5]
</p>
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<li>
<p class="mim-text-font">
Sijbers, A. M., van Voorst Vader, P. C., Snoek, J. W., Raams, A., Jaspers, N. G. J., Kleijer, W. J.
<strong>Homozygous R788W point mutation in the XPF gene of a patient with xeroderma pigmentosum and late-onset neurologic disease.</strong>
J. Invest. Derm. 110: 832-836, 1998.
[PubMed: 9579555]
[Full Text: https://doi.org/10.1046/j.1523-1747.1998.00171.x]
</p>
</li>
<li>
<p class="mim-text-font">
Thompson, L. H., Brookman, K. W., Weber, C.-A., Salazar, E. P., Reardon, J. T., Sancar, A., Deng, Z. M., Siciliano, M. J.
<strong>Molecular cloning of the human nucleotide excision-repair gene ERCC4.</strong>
Proc. Nat. Acad. Sci. 91: 6855-6859, 1994.
[PubMed: 8041709]
[Full Text: https://doi.org/10.1073/pnas.91.15.6855]
</p>
</li>
<li>
<p class="mim-text-font">
Yamamura, K., Ichihashi, M., Hiramoto, T., Ogoshi, M., Nishioka, K., Fujiwara, Y.
<strong>Clinical and photobiological characteristics of xeroderma pigmentosum complementation group F: a review of cases from Japan.</strong>
Brit. J. Derm. 121: 471-480, 1989.
[PubMed: 2696553]
[Full Text: https://doi.org/10.1111/j.1365-2133.1989.tb15514.x]
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