nih-gov/www.ncbi.nlm.nih.gov/omim/615075

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<title>
Entry
- #615075 - NEURODEVELOPMENTAL DISORDER WITH SPASTIC DIPLEGIA AND VISUAL DEFECTS; NEDSDV
- OMIM
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<span class="h4">#615075</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/615075"><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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<li role="presentation" style="margin-left: 1em">
<a href="#inheritance">Inheritance</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#cytogenetics">Cytogenetics</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#animalModel">Animal Model</a>
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<a href="#references"><strong>References</strong></a>
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<div><a href="https://clinicaltrials.gov/search?cond=NEURODEVELOPMENTAL DISORDER WITH SPASTIC DIPLEGIA AND VISUAL DEFECTS" class="mim-tip-hint" title="A registry of federally and privately supported clinical trials conducted in the United States and around the world." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Clinical Trials', 'domain': 'clinicaltrials.gov'})">Clinical Trials</a></div>
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<div><a href="https://www.ncbi.nlm.nih.gov/books/NBK580527/" class="mim-tip-hint" title="Expert-authored, peer-reviewed descriptions of inherited disorders including the uses of genetic testing in diagnosis, management, and genetic counseling." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Gene Reviews', 'domain': 'ncbi.nlm.nih.gov'})">Gene Reviews</a></div>
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<div><a href="https://wormbase.org/resources/disease/DOID:0070049" class="mim-tip-hint" title="Database of the biology and genome of Caenorhabditis elegans and related nematodes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Wormbase Disease Ontology', 'domain': 'wormbase.org'})">Wormbase Disease Ontology</a></div>
</div>
</div>
</div>
</div>
</div>
</div>
<span>
<span class="mim-tip-bottom" qtip_title="<strong>Looking for this gene or this phenotype in other resources?</strong>" qtip_text="Select a related resource from the dropdown menu and click for a targeted link to information directly relevant.">
&nbsp;
</span>
</span>
</div>
<div class="col-lg-8 col-lg-pull-2 col-md-8 col-md-pull-2 col-sm-8 col-sm-pull-2 col-xs-12">
<div>
<a id="title" class="mim-anchor"></a>
<div>
<a id="number" class="mim-anchor"></a>
<div class="text-right">
<a href="#" class="mim-tip-icd" qtip_title="<strong>ICD+</strong>" qtip_text="
<strong>ORPHA:</strong> 404473<br />
<strong>DO:</strong> 0070049<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>
615075
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
NEURODEVELOPMENTAL DISORDER WITH SPASTIC DIPLEGIA AND VISUAL DEFECTS; NEDSDV
</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">
MENTAL RETARDATION, AUTOSOMAL DOMINANT 19, FORMERLY; MRD19, FORMERLY
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<a id="phenotypeMap" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>Phenotype-Gene Relationships</strong>
</span>
</h4>
<div>
<table class="table table-bordered table-condensed table-hover small mim-table-padding">
<thead>
<tr class="active">
<th>
Location
</th>
<th>
Phenotype
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
<th>
Gene/Locus
</th>
<th>
Gene/Locus <br /> MIM number
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/198?start=-3&limit=10&highlight=198">
3p22.1
</a>
</span>
</td>
<td>
<span class="mim-font">
Neurodevelopmental disorder with spastic diplegia and visual defects
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615075"> 615075 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
CTNNB1
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/116806"> 116806 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/615075" 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/615075" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/615075" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
</ul>
</div>
<span class="glyphicon glyphicon-question-sign mim-tip-hint" title="OMIM PheneGene graphics depict relationships between phenotypes, groups of related phenotypes (Phenotypic Series), and genes.<br /><a href='/static/omim/pdf/OMIM_Graphics.pdf' target='_blank'>A quick reference overview and guide (PDF)</a>"></span>
<div>
<p />
</div>
<div id="mimClinicalSynopsisFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small" style="margin: 5px">
<div>
<div>
<span class="h5 mim-font">
<strong> INHERITANCE </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Autosomal dominant <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/263681008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">263681008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/771269000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">771269000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0443147&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0443147</a>, <a href="https://bioportal.bioontology.org/search?q=C1867440&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1867440</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000006</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000006</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> 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> Face </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Long philtrum <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1865014&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1865014</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000343" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000343</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000343" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000343</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=6e8169f9668cf95ffe7aad93a28f672b" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Philtrum,Long-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=6e8169f9668cf95ffe7aad93a28f672b&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Eyes </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Visual defects <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/7973008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">7973008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/397540003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">397540003</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3665347&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3665347</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000505" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000505</a>]</span><br /> -
Strabismus <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/22066006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">22066006</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H50.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H50.9</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H50.40" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H50.40</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0038379&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0038379</a>, <a href="https://bioportal.bioontology.org/search?q=C2020541&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2020541</a>, <a href="https://bioportal.bioontology.org/search?q=C1423541&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1423541</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000486" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000486</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000486" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000486</a>]</span><br /> -
Optic nerve atrophy (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/76976005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">76976005</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H47.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H47.2</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H47.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H47.20</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/377.10" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">377.10</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/377.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">377.1</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0029124&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0029124</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000648" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000648</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000648" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000648</a>]</span><br /> -
Hypermetropia (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/38101003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">38101003</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H52.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H52.0</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/367.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">367.0</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0020490&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0020490</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000540" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000540</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000540" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000540</a>]</span><br /> -
Exudative vitreoretinopathy (in some patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4072980&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4072980</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0030490" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0030490</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0030490" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0030490</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Nose </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Full nasal tip <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4014020&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4014020</a>]</span><br /> -
Small alae nasi <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1855615&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1855615</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Mouth </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Thin upper lip <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1865017&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1865017</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000219" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000219</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000219" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000219</a>]</span><br /> -
High-arched palate <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/27272007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">27272007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q38.5" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q38.5</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0240635&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0240635</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000218" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000218</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000218" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000218</a>]</span><br />
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<strong> SKIN, NAILS, & HAIR </strong>
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<em> Skin </em>
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<span class="mim-font">
- Fair skin (in some patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1858570&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1858570</a>, <a href="https://bioportal.bioontology.org/search?q=C1849923&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1849923</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007513" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007513</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007513" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007513</a>]</span><br />
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<em> Hair </em>
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- Fine fair hair (in some patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4539443&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4539443</a>]</span><br /> -
Unusual hair patterning (in some patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4539444&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4539444</a>]</span><br />
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<strong> MUSCLE, SOFT TISSUES </strong>
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<div style="margin-left: 2em;">
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- Hypotonia, axial <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1853743&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1853743</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0008936" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008936</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0008936" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008936</a>]</span><br />
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<strong> NEUROLOGIC </strong>
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<div style="margin-left: 2em;">
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<em> Central Nervous System </em>
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<div style="margin-left: 2em;">
<span class="mim-font">
- Delayed psychomotor development <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/224958001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">224958001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/F88" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">F88</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0557874&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0557874</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001263" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001263</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001263" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001263</a>]</span><br /> -
Intellectual disability <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> 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 /> -
Speech impairment <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/29164008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">29164008</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/162294008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">162294008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R47.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R47.9</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0233715&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0233715</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000750" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000750</a>]</span><br /> -
Spastic diplegia, progressive <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4014019&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4014019</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/281411007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">281411007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/G80.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">G80.1</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001264" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001264</a>]</span><br /> -
Hypoplastic corpus callosum <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/204043002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">204043002</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0344482&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0344482</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002079" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002079</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002079" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002079</a>]</span><br />
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<span class="h5 mim-font">
<em> Behavioral Psychiatric Manifestations </em>
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<div style="margin-left: 2em;">
<span class="mim-font">
- Autistic features <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1846135&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1846135</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000729" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000729</a>]</span><br />
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<strong> MISCELLANEOUS </strong>
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<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Onset in infancy <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1848924&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1848924</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003593" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003593</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003593" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003593</a>]</span><br /> -
De novo mutation <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2985439&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2985439</a>]</span><br />
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<strong> MOLECULAR BASIS </strong>
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- Caused by mutation in the beta-1 catenin gene (CTNNB1, <a href="/entry/116806#0017">116806.0017</a>)<br />
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<a href="#mimClinicalSynopsisFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because neurodevelopmental disorder with spastic diplegia and visual defects (NEDSDV) is caused by heterozygous mutation in the CTNNB1 gene (<a href="/entry/116806">116806</a>) on chromosome 3p22.</p>
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<strong>Description</strong>
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<p>Neurodevelopmental disorder with spastic diplegia and visual defects (NEDSDV) is characterized by global developmental delay, impaired intellectual development, axial hypotonia, and dysmorphic craniofacial features with microcephaly. Many patients have visual abnormalities, ranging from strabismus to optic nerve atrophy and retinal abnormalities. Affected individuals also develop spasticity, particularly of the lower limbs, and may have behavioral abnormalities (summary by <a href="#4" class="mim-tip-reference" title="Kuechler, A., Willemsen, M. H., Albrecht, B., Bacino, C. A., Bartholomew, D. W., van Bokhoven, H., van den Boogaard, M. J. H., Bramswig, N., Buttner, C., Cremer, K., Czeschik, J. C., Engels, H., and 26 others. &lt;strong&gt;De novo mutations in beta-catenin (CTNNB1) appear to be a frequent cause of intellectual disability: expanding the mutational and clinical spectrum.&lt;/strong&gt; Hum. Genet. 134: 97-109, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25326669/&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;25326669&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s00439-014-1498-1&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="25326669">Kuechler et al., 2015</a> and <a href="#3" class="mim-tip-reference" title="Kharbanda, M., Pilz, D. T., Tomkins, S., Chandler, K., Saggar, A., Fryer, A., McKay, V., Louro, P., Clayton Smith, J., Burn, J., Kini, U., De Burca, A., FitzPatrick, D. R., Kinning, E., DDD Study. &lt;strong&gt;Clinical features associated with CTNNB1 de novo loss of function mutations in ten individuals.&lt;/strong&gt; Europ. J. Med. Genet. 60: 130-135, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/27915094/&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;27915094&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=27915094[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.ejmg.2016.11.008&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="27915094">Kharbanda et al., 2017</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=27915094+25326669" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>Clinical Features</strong>
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<p>From a cohort of 100 individuals with severe intellectual disability, <a href="#1" class="mim-tip-reference" title="de Ligt, J., Willemsen, M. H., van Bon, B. W. M., Kleefstra, T., Yntema, H. G., Kroes, T., Vulto-van Silfhout, A. T., Koolen, D. A., de Vries, P., Gilissen, C., del Rosario, M., Hoischen, A., Scheffer, H., de Vries, B. B. A., Brunner, H. G., Veltman, J. A., Vissers, L. E. L. M. &lt;strong&gt;Diagnostic exome sequencing in persons with severe intellectual disability.&lt;/strong&gt; New Eng. J. Med. 367: 1921-1929, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23033978/&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;23033978&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1206524&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="23033978">de Ligt et al. (2012)</a> identified 2 with a mutation in the CTNNB1 gene. One patient (patient 70) was a 29-year-old woman who had been evaluated at the age of 6 months for regression, which was followed by a slow progression in development. She learned to sit at age 2, and at the age of 12 she could walk with little support. She spoke her first words between the ages of 9 and 10. Behavioral problems included aggression, automutilation, and fecal smearing. At age 29 years, she was microcephalic and short. Facial dysmorphism included a low columella, long philtrum, high and narrow palate, and small posteriorly rotated ears. In a replication sample of 765 individuals, <a href="#1" class="mim-tip-reference" title="de Ligt, J., Willemsen, M. H., van Bon, B. W. M., Kleefstra, T., Yntema, H. G., Kroes, T., Vulto-van Silfhout, A. T., Koolen, D. A., de Vries, P., Gilissen, C., del Rosario, M., Hoischen, A., Scheffer, H., de Vries, B. B. A., Brunner, H. G., Veltman, J. A., Vissers, L. E. L. M. &lt;strong&gt;Diagnostic exome sequencing in persons with severe intellectual disability.&lt;/strong&gt; New Eng. J. Med. 367: 1921-1929, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23033978/&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;23033978&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1206524&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="23033978">de Ligt et al. (2012)</a> identified a third similarly affected patient with a CTNNB1 mutation. All of the patients had similar features comprising severe intellectual disability with absent or very limited speech, microcephaly, and spasticity which severely impaired the ability to walk. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23033978" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#7" class="mim-tip-reference" title="Tucci, V., Kleefstra, T., Hardy, A., Heise, I., Maggi, S., Willemsen, M. H., Hilton, H., Esapa, C., Simon, M., Buenavista, M.-T., McGuffin, L. J., Vizor, L., and 24 others. &lt;strong&gt;Dominant beta-catenin mutations cause intellectual disability with recognizable syndromic features.&lt;/strong&gt; J. Clin. Invest. 124: 1468-1482, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24614104/&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;24614104&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=24614104[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/10.1172/JCI70372&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="24614104">Tucci et al. (2014)</a> reviewed the clinical features of the patients reported by <a href="#1" class="mim-tip-reference" title="de Ligt, J., Willemsen, M. H., van Bon, B. W. M., Kleefstra, T., Yntema, H. G., Kroes, T., Vulto-van Silfhout, A. T., Koolen, D. A., de Vries, P., Gilissen, C., del Rosario, M., Hoischen, A., Scheffer, H., de Vries, B. B. A., Brunner, H. G., Veltman, J. A., Vissers, L. E. L. M. &lt;strong&gt;Diagnostic exome sequencing in persons with severe intellectual disability.&lt;/strong&gt; New Eng. J. Med. 367: 1921-1929, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23033978/&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;23033978&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1206524&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="23033978">de Ligt et al. (2012)</a> and reported another affected individual. The individuals had common recognizable features, including microcephaly, full nasal tip, and thin upper lip. Other common features included childhood hypotonia, autistic features, progressive spastic diplegia, and hypoplasia of the corpus callosum. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=23033978+24614104" 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="Kuechler, A., Willemsen, M. H., Albrecht, B., Bacino, C. A., Bartholomew, D. W., van Bokhoven, H., van den Boogaard, M. J. H., Bramswig, N., Buttner, C., Cremer, K., Czeschik, J. C., Engels, H., and 26 others. &lt;strong&gt;De novo mutations in beta-catenin (CTNNB1) appear to be a frequent cause of intellectual disability: expanding the mutational and clinical spectrum.&lt;/strong&gt; Hum. Genet. 134: 97-109, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25326669/&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;25326669&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s00439-014-1498-1&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="25326669">Kuechler et al. (2015)</a> identified 16 patients from 15 families with NEDSDV confirmed by genetic analysis; there were 8 girls and 8 boys. Detailed descriptions of each patient, as well as an overall analysis of common clinical features, were provided. All patients had hypotonia and delayed psychomotor development from infancy. Almost all developed peripheral spasticity, resulting in an unsteady gait or inability to walk. All had intellectual disability, 9 had behavioral abnormalities including autistic features or aggression, and all had variable speech impairment, ranging from mild to severe. Eleven patients had visual defects. About half of patients had primary microcephaly. Most had mild dysmorphic facial features; common features included broad nasal tip with small alae nasi, long or flat philtrum, and thin upper lip, and more variable features included upslanting palpebral fissures and ear abnormalities. None had seizures or hearing loss. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25326669" 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="inheritance" class="mim-anchor"></a>
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<p>The heterozygous mutations in the CTNNB1 gene that were identified in patients with NEDSDV by <a href="#4" class="mim-tip-reference" title="Kuechler, A., Willemsen, M. H., Albrecht, B., Bacino, C. A., Bartholomew, D. W., van Bokhoven, H., van den Boogaard, M. J. H., Bramswig, N., Buttner, C., Cremer, K., Czeschik, J. C., Engels, H., and 26 others. &lt;strong&gt;De novo mutations in beta-catenin (CTNNB1) appear to be a frequent cause of intellectual disability: expanding the mutational and clinical spectrum.&lt;/strong&gt; Hum. Genet. 134: 97-109, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25326669/&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;25326669&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s00439-014-1498-1&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="25326669">Kuechler et al. (2015)</a> and <a href="#3" class="mim-tip-reference" title="Kharbanda, M., Pilz, D. T., Tomkins, S., Chandler, K., Saggar, A., Fryer, A., McKay, V., Louro, P., Clayton Smith, J., Burn, J., Kini, U., De Burca, A., FitzPatrick, D. R., Kinning, E., DDD Study. &lt;strong&gt;Clinical features associated with CTNNB1 de novo loss of function mutations in ten individuals.&lt;/strong&gt; Europ. J. Med. Genet. 60: 130-135, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/27915094/&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;27915094&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=27915094[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.ejmg.2016.11.008&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="27915094">Kharbanda et al. (2017)</a> occurred de novo. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=27915094+25326669" 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="#2" class="mim-tip-reference" title="Dubruc, E., Putoux, A., Labalme, A., Rougeot, C., Sanlaville, D., Edery, P. &lt;strong&gt;A new intellectual disability syndrome caused by CTNNB1 haploinsufficiency.&lt;/strong&gt; Am. J. Med. Genet. 164A: 1571-1575, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24668549/&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;24668549&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.36484&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="24668549">Dubruc et al. (2014)</a> reported a 5.5-year-old Caucasian girl, born of unrelated patients, with intellectual disability associated with a de novo heterozygous 333-kb deletion of chromosome 3p22 including the entire CTNNB1 gene and the last 3 exons of the ULK4 gene. She had intrauterine growth retardation, and birth was complicated by the umbilical cord wrapped around the neck and neonatal respiratory distress syndrome. In the first years of life, she developed progressive microcephaly, truncal hypotonia, delayed psychomotor development, and poor speech. She was friendly and hyperactive. She had thin, sparse hair, fair skin, thin lips, low-set ears, hyperopia, and a sacral dimple. Ataxic gait and spasticity with hyperreflexia and extensor plantar responses became apparent around age 4 years. The deletion was found by array CGH and was absent in both her parents. <a href="#2" class="mim-tip-reference" title="Dubruc, E., Putoux, A., Labalme, A., Rougeot, C., Sanlaville, D., Edery, P. &lt;strong&gt;A new intellectual disability syndrome caused by CTNNB1 haploinsufficiency.&lt;/strong&gt; Am. J. Med. Genet. 164A: 1571-1575, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24668549/&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;24668549&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.36484&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="24668549">Dubruc et al. (2014)</a> concluded that the phenotype resulted from haploinsufficiency of the CTNNB1 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24668549" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="molecularGenetics" class="mim-anchor"></a>
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<strong>Molecular Genetics</strong>
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<p>In 3 patients with severe intellectual disability, microcephaly, and spasticity, <a href="#1" class="mim-tip-reference" title="de Ligt, J., Willemsen, M. H., van Bon, B. W. M., Kleefstra, T., Yntema, H. G., Kroes, T., Vulto-van Silfhout, A. T., Koolen, D. A., de Vries, P., Gilissen, C., del Rosario, M., Hoischen, A., Scheffer, H., de Vries, B. B. A., Brunner, H. G., Veltman, J. A., Vissers, L. E. L. M. &lt;strong&gt;Diagnostic exome sequencing in persons with severe intellectual disability.&lt;/strong&gt; New Eng. J. Med. 367: 1921-1929, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23033978/&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;23033978&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1206524&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="23033978">de Ligt et al. (2012)</a> identified heterozygous loss-of-function mutations in the CTNNB1 gene (<a href="/entry/116806#0017">116806.0017</a>-<a href="/entry/116806#0019">116806.0019</a>). Two of the mutations were known to be de novo; in the third patient, the mutation was not inherited from the mother and the father's DNA was not available for testing. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23033978" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#7" class="mim-tip-reference" title="Tucci, V., Kleefstra, T., Hardy, A., Heise, I., Maggi, S., Willemsen, M. H., Hilton, H., Esapa, C., Simon, M., Buenavista, M.-T., McGuffin, L. J., Vizor, L., and 24 others. &lt;strong&gt;Dominant beta-catenin mutations cause intellectual disability with recognizable syndromic features.&lt;/strong&gt; J. Clin. Invest. 124: 1468-1482, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24614104/&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;24614104&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=24614104[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/10.1172/JCI70372&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="24614104">Tucci et al. (2014)</a> identified a de novo heterozygous truncation mutation in the CTNNB1 gene (<a href="/entry/116806#0020">116806.0020</a>) in a patient with NEDSDV. The findings indicated that CTNNB1 haploinsufficiency is responsible for the phenotype. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24614104" 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 16 patients from 15 families with NEDSDV, <a href="#4" class="mim-tip-reference" title="Kuechler, A., Willemsen, M. H., Albrecht, B., Bacino, C. A., Bartholomew, D. W., van Bokhoven, H., van den Boogaard, M. J. H., Bramswig, N., Buttner, C., Cremer, K., Czeschik, J. C., Engels, H., and 26 others. &lt;strong&gt;De novo mutations in beta-catenin (CTNNB1) appear to be a frequent cause of intellectual disability: expanding the mutational and clinical spectrum.&lt;/strong&gt; Hum. Genet. 134: 97-109, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/25326669/&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;25326669&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s00439-014-1498-1&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="25326669">Kuechler et al. (2015)</a> identified 15 different de novo heterozygous truncating mutations in the CTNNB1 gene. Functional studies and studies on patient cells were not performed. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25326669" 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 interrogating the DECIPHER database, <a href="#3" class="mim-tip-reference" title="Kharbanda, M., Pilz, D. T., Tomkins, S., Chandler, K., Saggar, A., Fryer, A., McKay, V., Louro, P., Clayton Smith, J., Burn, J., Kini, U., De Burca, A., FitzPatrick, D. R., Kinning, E., DDD Study. &lt;strong&gt;Clinical features associated with CTNNB1 de novo loss of function mutations in ten individuals.&lt;/strong&gt; Europ. J. Med. Genet. 60: 130-135, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/27915094/&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;27915094&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=27915094[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.ejmg.2016.11.008&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="27915094">Kharbanda et al. (2017)</a> identified 11 patients with a de novo inactivating mutation in the CTNNB1 gene (see, e.g., <a href="/entry/116806#0021">116806.0021</a>). In the 10 patients for whom clinical details were available, the authors confirmed features previously described in patients with inactivating CTNNB1 mutations, including intellectual disability, postnatal microcephaly, truncal hypotonia and peripheral spasticity, mild dysmorphic features, and behavioral problems. In addition, these patients exhibited fair skin and fine, fair hair with unusual hair patterning that appeared to be out of keeping with the familial background. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=27915094" 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 15-month-old Chinese boy who presented with retinal detachment as well as lens and vitreous opacities and showed no reaction to light, who was negative for mutation in exudative vitreoretinopathy (see <a href="/entry/133780">133780</a>)-associated genes, <a href="#5" class="mim-tip-reference" title="Li, N., Xu, Y., Li, G., Yu, T., Yao, R., Wang, X., Wang, J. &lt;strong&gt;Exome sequencing identifies a de novo mutation of CTNNB1 gene in a patient mainly presented with retinal detachment, lens and vitreous opacities, microcephaly, and developmental delay: case report and literature review.&lt;/strong&gt; Medicine 96: e6914, 2017. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28514307/&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;28514307&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=28514307[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/10.1097/MD.0000000000006914&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="28514307">Li et al. (2017)</a> performed whole-exome sequencing and identified heterozygosity for a de novo nonsense mutation in the CTNNB1 gene (Q558X; <a href="/entry/116806#0022">116806.0022</a>). The child also exhibited microcephaly, developmental delay, and mild thumb adduction. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28514307" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In a 3-year-old Chinese boy with exudative vitreoretinopathy, developmental delay, and dysmorphic facial features, <a href="#6" class="mim-tip-reference" title="Panagiotou, E. S., Sanjurjo Soriano, C., Poulter, J. A., Lord, E. C., Dzulova, D., Kondo, H., Hiyoshi, A., Chung, B. H.-Y., Chu, Y. W.-Y., Lai, C. H. Y., Tafoya, M. E., Karjosukarso, D., Collin, R. W. J., Topping, J., Downey, L. M., Ali, M., Inglehearn, C. F., Toomes, C. &lt;strong&gt;Defects in the cell signaling mediator beta-catenin cause the retinal vascular condition FEVR.&lt;/strong&gt; Am. J. Hum. Genet. 100: 960-968, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28575650/&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;28575650&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=28575650[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.2017.05.001&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="28575650">Panagiotou et al. (2017)</a> identified heterozygosity for a de novo 1-bp insertion in the CTNNB1 gene (<a href="/entry/116806#0023">116806.0023</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28575650" 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="#7" class="mim-tip-reference" title="Tucci, V., Kleefstra, T., Hardy, A., Heise, I., Maggi, S., Willemsen, M. H., Hilton, H., Esapa, C., Simon, M., Buenavista, M.-T., McGuffin, L. J., Vizor, L., and 24 others. &lt;strong&gt;Dominant beta-catenin mutations cause intellectual disability with recognizable syndromic features.&lt;/strong&gt; J. Clin. Invest. 124: 1468-1482, 2014.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/24614104/&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;24614104&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=24614104[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/10.1172/JCI70372&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="24614104">Tucci et al. (2014)</a> identified a mouse mutant, designated 'batface' (Bfc), resulting from a heterozygous T653K mutation in the C-terminal armadillo repeat of the Ctnnb1 gene. Mutant mice had craniofacial abnormalities, including shortened anteroposterior axis, broad face, and shortened nasal length, as well as morphologic brain changes, such as larger deep brain structures, reduced cerebellar and olfactory bulb volume, and underdeveloped corpus callosum. Mutant mice demonstrated behavioral and cognitive abnormalities, including defects in prepulse inhibition, motor deficits, decreased vocalization complexity, and decreased hippocampal-dependent memory performance. In vitro cellular studies showed that the T653K mutation disrupted the association between Ctnnb1 and cadherin, consistent with a dominant-negative effect. Brains of heterozygous mutant mice initially showed increased length and number of neurons, but later showed decreased dendritic branching compared to controls. Knockdown of Ctnnb1 using siRNA caused a similar decrease in neuritic length and number of processes in wildtype neurons, suggesting that the T653K mutation also causes a loss of function. Electrophysiologic studies of mutant neurons indicated higher excitability of neural networks and less efficient functional connectivity compared to wildtype. The findings indicated that CTNNB1 plays a key role in many aspects of neurodevelopment and synaptic function. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24614104" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>REFERENCES</strong>
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<a id="1" class="mim-anchor"></a>
<a id="de Ligt2012" class="mim-anchor"></a>
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de Ligt, J., Willemsen, M. H., van Bon, B. W. M., Kleefstra, T., Yntema, H. G., Kroes, T., Vulto-van Silfhout, A. T., Koolen, D. A., de Vries, P., Gilissen, C., del Rosario, M., Hoischen, A., Scheffer, H., de Vries, B. B. A., Brunner, H. G., Veltman, J. A., Vissers, L. E. L. M.
<strong>Diagnostic exome sequencing in persons with severe intellectual disability.</strong>
New Eng. J. Med. 367: 1921-1929, 2012.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/23033978/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">23033978</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23033978" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1056/NEJMoa1206524" target="_blank">Full Text</a>]
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<a id="Dubruc2014" class="mim-anchor"></a>
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Dubruc, E., Putoux, A., Labalme, A., Rougeot, C., Sanlaville, D., Edery, P.
<strong>A new intellectual disability syndrome caused by CTNNB1 haploinsufficiency.</strong>
Am. J. Med. Genet. 164A: 1571-1575, 2014.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/24668549/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">24668549</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=24668549" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/ajmg.a.36484" target="_blank">Full Text</a>]
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<a id="Kharbanda2017" class="mim-anchor"></a>
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Kharbanda, M., Pilz, D. T., Tomkins, S., Chandler, K., Saggar, A., Fryer, A., McKay, V., Louro, P., Clayton Smith, J., Burn, J., Kini, U., De Burca, A., FitzPatrick, D. R., Kinning, E., DDD Study.
<strong>Clinical features associated with CTNNB1 de novo loss of function mutations in ten individuals.</strong>
Europ. J. Med. Genet. 60: 130-135, 2017.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/27915094/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">27915094</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=27915094[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=27915094" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/j.ejmg.2016.11.008" target="_blank">Full Text</a>]
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<a id="Kuechler2015" class="mim-anchor"></a>
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Kuechler, A., Willemsen, M. H., Albrecht, B., Bacino, C. A., Bartholomew, D. W., van Bokhoven, H., van den Boogaard, M. J. H., Bramswig, N., Buttner, C., Cremer, K., Czeschik, J. C., Engels, H., and 26 others.
<strong>De novo mutations in beta-catenin (CTNNB1) appear to be a frequent cause of intellectual disability: expanding the mutational and clinical spectrum.</strong>
Hum. Genet. 134: 97-109, 2015.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/25326669/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">25326669</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=25326669" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/s00439-014-1498-1" target="_blank">Full Text</a>]
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<a id="Li2017" class="mim-anchor"></a>
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Li, N., Xu, Y., Li, G., Yu, T., Yao, R., Wang, X., Wang, J.
<strong>Exome sequencing identifies a de novo mutation of CTNNB1 gene in a patient mainly presented with retinal detachment, lens and vitreous opacities, microcephaly, and developmental delay: case report and literature review.</strong>
Medicine 96: e6914, 2017. Note: Electronic Article.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/28514307/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">28514307</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=28514307[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=28514307" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1097/MD.0000000000006914" target="_blank">Full Text</a>]
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<a id="Panagiotou2017" class="mim-anchor"></a>
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Panagiotou, E. S., Sanjurjo Soriano, C., Poulter, J. A., Lord, E. C., Dzulova, D., Kondo, H., Hiyoshi, A., Chung, B. H.-Y., Chu, Y. W.-Y., Lai, C. H. Y., Tafoya, M. E., Karjosukarso, D., Collin, R. W. J., Topping, J., Downey, L. M., Ali, M., Inglehearn, C. F., Toomes, C.
<strong>Defects in the cell signaling mediator beta-catenin cause the retinal vascular condition FEVR.</strong>
Am. J. Hum. Genet. 100: 960-968, 2017.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/28575650/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">28575650</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=28575650[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=28575650" 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.2017.05.001" target="_blank">Full Text</a>]
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<a id="7" class="mim-anchor"></a>
<a id="Tucci2014" class="mim-anchor"></a>
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Tucci, V., Kleefstra, T., Hardy, A., Heise, I., Maggi, S., Willemsen, M. H., Hilton, H., Esapa, C., Simon, M., Buenavista, M.-T., McGuffin, L. J., Vizor, L., and 24 others.
<strong>Dominant beta-catenin mutations cause intellectual disability with recognizable syndromic features.</strong>
J. Clin. Invest. 124: 1468-1482, 2014.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/24614104/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">24614104</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=24614104[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=24614104" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1172/JCI70372" target="_blank">Full Text</a>]
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Marla J. F. O'Neill - updated : 07/14/2017
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Cassandra L. Kniffin - updated : 12/3/2015<br>Cassandra L. Kniffin - updated : 6/10/2014<br>Cassandra L. Kniffin - updated : 5/27/2014
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Ada Hamosh : 2/12/2013
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alopez : 06/03/2024
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carol : 03/19/2019<br>carol : 03/18/2019<br>ckniffin : 03/18/2019<br>carol : 07/17/2017<br>carol : 07/14/2017<br>carol : 12/08/2015<br>ckniffin : 12/3/2015<br>carol : 7/24/2014<br>ckniffin : 6/10/2014<br>carol : 6/4/2014<br>mcolton : 5/29/2014<br>ckniffin : 5/27/2014<br>carol : 2/12/2013<br>carol : 2/12/2013
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<strong>#</strong> 615075
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NEURODEVELOPMENTAL DISORDER WITH SPASTIC DIPLEGIA AND VISUAL DEFECTS; NEDSDV
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<em>Alternative titles; symbols</em>
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MENTAL RETARDATION, AUTOSOMAL DOMINANT 19, FORMERLY; MRD19, FORMERLY
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<strong>ORPHA:</strong> 404473; &nbsp;
<strong>DO:</strong> 0070049; &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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3p22.1
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Neurodevelopmental disorder with spastic diplegia and visual defects
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615075
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Autosomal dominant
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3
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CTNNB1
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116806
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because neurodevelopmental disorder with spastic diplegia and visual defects (NEDSDV) is caused by heterozygous mutation in the CTNNB1 gene (116806) on chromosome 3p22.</p>
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<strong>Description</strong>
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<p>Neurodevelopmental disorder with spastic diplegia and visual defects (NEDSDV) is characterized by global developmental delay, impaired intellectual development, axial hypotonia, and dysmorphic craniofacial features with microcephaly. Many patients have visual abnormalities, ranging from strabismus to optic nerve atrophy and retinal abnormalities. Affected individuals also develop spasticity, particularly of the lower limbs, and may have behavioral abnormalities (summary by Kuechler et al., 2015 and Kharbanda et al., 2017). </p>
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<strong>Clinical Features</strong>
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<p>From a cohort of 100 individuals with severe intellectual disability, de Ligt et al. (2012) identified 2 with a mutation in the CTNNB1 gene. One patient (patient 70) was a 29-year-old woman who had been evaluated at the age of 6 months for regression, which was followed by a slow progression in development. She learned to sit at age 2, and at the age of 12 she could walk with little support. She spoke her first words between the ages of 9 and 10. Behavioral problems included aggression, automutilation, and fecal smearing. At age 29 years, she was microcephalic and short. Facial dysmorphism included a low columella, long philtrum, high and narrow palate, and small posteriorly rotated ears. In a replication sample of 765 individuals, de Ligt et al. (2012) identified a third similarly affected patient with a CTNNB1 mutation. All of the patients had similar features comprising severe intellectual disability with absent or very limited speech, microcephaly, and spasticity which severely impaired the ability to walk. </p><p>Tucci et al. (2014) reviewed the clinical features of the patients reported by de Ligt et al. (2012) and reported another affected individual. The individuals had common recognizable features, including microcephaly, full nasal tip, and thin upper lip. Other common features included childhood hypotonia, autistic features, progressive spastic diplegia, and hypoplasia of the corpus callosum. </p><p>Kuechler et al. (2015) identified 16 patients from 15 families with NEDSDV confirmed by genetic analysis; there were 8 girls and 8 boys. Detailed descriptions of each patient, as well as an overall analysis of common clinical features, were provided. All patients had hypotonia and delayed psychomotor development from infancy. Almost all developed peripheral spasticity, resulting in an unsteady gait or inability to walk. All had intellectual disability, 9 had behavioral abnormalities including autistic features or aggression, and all had variable speech impairment, ranging from mild to severe. Eleven patients had visual defects. About half of patients had primary microcephaly. Most had mild dysmorphic facial features; common features included broad nasal tip with small alae nasi, long or flat philtrum, and thin upper lip, and more variable features included upslanting palpebral fissures and ear abnormalities. None had seizures or hearing loss. </p>
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<strong>Inheritance</strong>
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<p>The heterozygous mutations in the CTNNB1 gene that were identified in patients with NEDSDV by Kuechler et al. (2015) and Kharbanda et al. (2017) occurred de novo. </p>
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<strong>Cytogenetics</strong>
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<p>Dubruc et al. (2014) reported a 5.5-year-old Caucasian girl, born of unrelated patients, with intellectual disability associated with a de novo heterozygous 333-kb deletion of chromosome 3p22 including the entire CTNNB1 gene and the last 3 exons of the ULK4 gene. She had intrauterine growth retardation, and birth was complicated by the umbilical cord wrapped around the neck and neonatal respiratory distress syndrome. In the first years of life, she developed progressive microcephaly, truncal hypotonia, delayed psychomotor development, and poor speech. She was friendly and hyperactive. She had thin, sparse hair, fair skin, thin lips, low-set ears, hyperopia, and a sacral dimple. Ataxic gait and spasticity with hyperreflexia and extensor plantar responses became apparent around age 4 years. The deletion was found by array CGH and was absent in both her parents. Dubruc et al. (2014) concluded that the phenotype resulted from haploinsufficiency of the CTNNB1 gene. </p>
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<strong>Molecular Genetics</strong>
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<p>In 3 patients with severe intellectual disability, microcephaly, and spasticity, de Ligt et al. (2012) identified heterozygous loss-of-function mutations in the CTNNB1 gene (116806.0017-116806.0019). Two of the mutations were known to be de novo; in the third patient, the mutation was not inherited from the mother and the father's DNA was not available for testing. </p><p>Tucci et al. (2014) identified a de novo heterozygous truncation mutation in the CTNNB1 gene (116806.0020) in a patient with NEDSDV. The findings indicated that CTNNB1 haploinsufficiency is responsible for the phenotype. </p><p>In 16 patients from 15 families with NEDSDV, Kuechler et al. (2015) identified 15 different de novo heterozygous truncating mutations in the CTNNB1 gene. Functional studies and studies on patient cells were not performed. </p><p>By interrogating the DECIPHER database, Kharbanda et al. (2017) identified 11 patients with a de novo inactivating mutation in the CTNNB1 gene (see, e.g., 116806.0021). In the 10 patients for whom clinical details were available, the authors confirmed features previously described in patients with inactivating CTNNB1 mutations, including intellectual disability, postnatal microcephaly, truncal hypotonia and peripheral spasticity, mild dysmorphic features, and behavioral problems. In addition, these patients exhibited fair skin and fine, fair hair with unusual hair patterning that appeared to be out of keeping with the familial background. </p><p>In a 15-month-old Chinese boy who presented with retinal detachment as well as lens and vitreous opacities and showed no reaction to light, who was negative for mutation in exudative vitreoretinopathy (see 133780)-associated genes, Li et al. (2017) performed whole-exome sequencing and identified heterozygosity for a de novo nonsense mutation in the CTNNB1 gene (Q558X; 116806.0022). The child also exhibited microcephaly, developmental delay, and mild thumb adduction. </p><p>In a 3-year-old Chinese boy with exudative vitreoretinopathy, developmental delay, and dysmorphic facial features, Panagiotou et al. (2017) identified heterozygosity for a de novo 1-bp insertion in the CTNNB1 gene (116806.0023). </p>
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<strong>Animal Model</strong>
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<p>Tucci et al. (2014) identified a mouse mutant, designated 'batface' (Bfc), resulting from a heterozygous T653K mutation in the C-terminal armadillo repeat of the Ctnnb1 gene. Mutant mice had craniofacial abnormalities, including shortened anteroposterior axis, broad face, and shortened nasal length, as well as morphologic brain changes, such as larger deep brain structures, reduced cerebellar and olfactory bulb volume, and underdeveloped corpus callosum. Mutant mice demonstrated behavioral and cognitive abnormalities, including defects in prepulse inhibition, motor deficits, decreased vocalization complexity, and decreased hippocampal-dependent memory performance. In vitro cellular studies showed that the T653K mutation disrupted the association between Ctnnb1 and cadherin, consistent with a dominant-negative effect. Brains of heterozygous mutant mice initially showed increased length and number of neurons, but later showed decreased dendritic branching compared to controls. Knockdown of Ctnnb1 using siRNA caused a similar decrease in neuritic length and number of processes in wildtype neurons, suggesting that the T653K mutation also causes a loss of function. Electrophysiologic studies of mutant neurons indicated higher excitability of neural networks and less efficient functional connectivity compared to wildtype. The findings indicated that CTNNB1 plays a key role in many aspects of neurodevelopment and synaptic function. </p>
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<strong>REFERENCES</strong>
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de Ligt, J., Willemsen, M. H., van Bon, B. W. M., Kleefstra, T., Yntema, H. G., Kroes, T., Vulto-van Silfhout, A. T., Koolen, D. A., de Vries, P., Gilissen, C., del Rosario, M., Hoischen, A., Scheffer, H., de Vries, B. B. A., Brunner, H. G., Veltman, J. A., Vissers, L. E. L. M.
<strong>Diagnostic exome sequencing in persons with severe intellectual disability.</strong>
New Eng. J. Med. 367: 1921-1929, 2012.
[PubMed: 23033978]
[Full Text: https://doi.org/10.1056/NEJMoa1206524]
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Dubruc, E., Putoux, A., Labalme, A., Rougeot, C., Sanlaville, D., Edery, P.
<strong>A new intellectual disability syndrome caused by CTNNB1 haploinsufficiency.</strong>
Am. J. Med. Genet. 164A: 1571-1575, 2014.
[PubMed: 24668549]
[Full Text: https://doi.org/10.1002/ajmg.a.36484]
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Kharbanda, M., Pilz, D. T., Tomkins, S., Chandler, K., Saggar, A., Fryer, A., McKay, V., Louro, P., Clayton Smith, J., Burn, J., Kini, U., De Burca, A., FitzPatrick, D. R., Kinning, E., DDD Study.
<strong>Clinical features associated with CTNNB1 de novo loss of function mutations in ten individuals.</strong>
Europ. J. Med. Genet. 60: 130-135, 2017.
[PubMed: 27915094]
[Full Text: https://doi.org/10.1016/j.ejmg.2016.11.008]
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Kuechler, A., Willemsen, M. H., Albrecht, B., Bacino, C. A., Bartholomew, D. W., van Bokhoven, H., van den Boogaard, M. J. H., Bramswig, N., Buttner, C., Cremer, K., Czeschik, J. C., Engels, H., and 26 others.
<strong>De novo mutations in beta-catenin (CTNNB1) appear to be a frequent cause of intellectual disability: expanding the mutational and clinical spectrum.</strong>
Hum. Genet. 134: 97-109, 2015.
[PubMed: 25326669]
[Full Text: https://doi.org/10.1007/s00439-014-1498-1]
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Li, N., Xu, Y., Li, G., Yu, T., Yao, R., Wang, X., Wang, J.
<strong>Exome sequencing identifies a de novo mutation of CTNNB1 gene in a patient mainly presented with retinal detachment, lens and vitreous opacities, microcephaly, and developmental delay: case report and literature review.</strong>
Medicine 96: e6914, 2017. Note: Electronic Article.
[PubMed: 28514307]
[Full Text: https://doi.org/10.1097/MD.0000000000006914]
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Panagiotou, E. S., Sanjurjo Soriano, C., Poulter, J. A., Lord, E. C., Dzulova, D., Kondo, H., Hiyoshi, A., Chung, B. H.-Y., Chu, Y. W.-Y., Lai, C. H. Y., Tafoya, M. E., Karjosukarso, D., Collin, R. W. J., Topping, J., Downey, L. M., Ali, M., Inglehearn, C. F., Toomes, C.
<strong>Defects in the cell signaling mediator beta-catenin cause the retinal vascular condition FEVR.</strong>
Am. J. Hum. Genet. 100: 960-968, 2017.
[PubMed: 28575650]
[Full Text: https://doi.org/10.1016/j.ajhg.2017.05.001]
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Tucci, V., Kleefstra, T., Hardy, A., Heise, I., Maggi, S., Willemsen, M. H., Hilton, H., Esapa, C., Simon, M., Buenavista, M.-T., McGuffin, L. J., Vizor, L., and 24 others.
<strong>Dominant beta-catenin mutations cause intellectual disability with recognizable syndromic features.</strong>
J. Clin. Invest. 124: 1468-1482, 2014.
[PubMed: 24614104]
[Full Text: https://doi.org/10.1172/JCI70372]
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Marla J. F. O&#x27;Neill - updated : 07/14/2017<br>Cassandra L. Kniffin - updated : 12/3/2015<br>Cassandra L. Kniffin - updated : 6/10/2014<br>Cassandra L. Kniffin - updated : 5/27/2014
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Ada Hamosh : 2/12/2013
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alopez : 06/03/2024<br>carol : 03/19/2019<br>carol : 03/18/2019<br>ckniffin : 03/18/2019<br>carol : 07/17/2017<br>carol : 07/14/2017<br>carol : 12/08/2015<br>ckniffin : 12/3/2015<br>carol : 7/24/2014<br>ckniffin : 6/10/2014<br>carol : 6/4/2014<br>mcolton : 5/29/2014<br>ckniffin : 5/27/2014<br>carol : 2/12/2013<br>carol : 2/12/2013
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