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<title>
Entry
- #613720 - DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 7; DEE7
- OMIM
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<span class="h4">#613720</span>
<br />
<strong>Table of Contents</strong>
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<a href="#title"><strong>Title</strong></a>
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<a href="#phenotypeMap"><strong>Phenotype-Gene Relationships</strong></a>
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<a href="/clinicalSynopsis/613720"><strong>Clinical Synopsis</strong></a>
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<a href="/phenotypicSeries/PS308350"> <strong>Phenotypic Series</strong> </a>
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<a href="#text"><strong>Text</strong></a>
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<a href="#description">Description</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#clinicalFeatures">Clinical Features</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#inheritance">Inheritance</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#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://wormbase.org/resources/disease/DOID:0080462" 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> 439218<br />
<strong>DO:</strong> 0080462<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>
613720
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 7; DEE7
</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">
EPILEPTIC ENCEPHALOPATHY, EARLY INFANTILE, 7; EIEE7
</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/20/471?start=-3&limit=10&highlight=471">
20q13.33
</a>
</span>
</td>
<td>
<span class="mim-font">
Developmental and epileptic encephalopathy 7
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613720"> 613720 </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">
KCNQ2
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602235"> 602235 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/613720" class="btn btn-warning" role="button"> Clinical Synopsis </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-warning dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimClinicalSynopsisFold" onclick="ga('send', 'event', 'Unfurl', 'ClinicalSynopsis', 'omim.org')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
</div>
&nbsp;
<div class="btn-group">
<a href="/phenotypicSeries/PS308350" class="btn btn-info" role="button"> Phenotypic Series </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-info dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimPhenotypicSeriesFold" onclick="ga('send', 'event', 'Unfurl', 'PhenotypicSeries', 'omim.org')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
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</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/613720" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/613720" 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> 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">
- Epileptic encephalopathy <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/723125008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">723125008</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0543888&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0543888</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0200134" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0200134</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0200134" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0200134</a>]</span><br /> -
Seizures, tonic <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0270844&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0270844</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0032792" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0032792</a>]</span><br /> -
Seizures, clonic <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/192991000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">192991000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0234535&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0234535</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0020221" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0020221</a>]</span><br /> -
Generalized stiffening <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3552947&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3552947</a>]</span><br /> -
Automatisms <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/52669001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">52669001</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0004377&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0004377</a>]</span><br /> -
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 /> -
Mental retardation <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 /> -
Hypotonia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/398151007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">398151007</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/398152000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">398152000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0026827&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0026827</a>, <a href="https://bioportal.bioontology.org/search?q=C1858120&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1858120</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001290" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001290</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0001252" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001252</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001252" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001252</a>]</span><br /> -
Dystonia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/15802004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">15802004</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/G24.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">G24.9</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/G24" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">G24</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0013421&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0013421</a>, <a href="https://bioportal.bioontology.org/search?q=C0393593&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0393593</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001332" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001332</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001332" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001332</a>]</span><br /> -
Spastic quadriparesis <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/298282001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">298282001</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0575059&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0575059</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001285" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001285</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001285" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001285</a>]</span><br /> -
Burst suppression pattern seen on EEG <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3809973&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3809973</a>]</span><br /> -
Multifocal epileptic activity seen on EEG <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5393996&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5393996</a>]</span><br /> -
Hyperintensities in the basal ganglia and/or thalamus <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3808375&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3808375</a>]</span><br /> -
Thin corpus callosum (in some patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5441562&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5441562</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0033725" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0033725</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0033725" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0033725</a>]</span><br /> -
Reduced posterior white matter volume (in some patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3552949&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3552949</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> MISCELLANEOUS </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Onset in early infancy, often in the neonatal period<br /> -
Multiple seizures daily at onset<br /> -
Seizures are refractory to treatment<br /> -
Seizure frequency decreases during early childhood<br /> -
Most patients become seizure-free by age 3 or 4 years<br /> -
Variable intrafamilial severity<br /> -
De novo mutation (in most patients) <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 />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> MOLECULAR BASIS </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Caused by mutation in the voltage-gated potassium channel, KQT-like subfamily, member 2 gene (KCNQ2, <a href="/entry/602235#0007">602235.0007</a>)<br />
</span>
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<a href="#mimClinicalSynopsisFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
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<h5>
Developmental and epileptic encephalopathy
- <a href="/phenotypicSeries/PS308350">PS308350</a>
- 118 Entries
</h5>
</div>
</div>
<div class="row" style="margin-left: 0.125em; margin-right: 0.125em;">
<table class="table table-bordered table-condensed table-hover mim-table-padding">
<thead>
<tr>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Location</strong>
</th>
<th class="col-lg-5 col-md-5 col-sm-5 col-xs-6 text-nowrap">
<strong>Phenotype</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Inheritance</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Phenotype<br />mapping key</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Phenotype<br />MIM number</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Gene/Locus</strong>
</th>
<th class="col-lg-1 col-md-1 col-sm-1 col-xs-1 text-nowrap">
<strong>Gene/Locus<br />MIM number</strong>
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/523?start=-3&limit=10&highlight=523"> 1p34.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615476"> Developmental and epileptic encephalopathy 18 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615476"> 615476 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615463"> SZT2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615463"> 615463 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/528?start=-3&limit=10&highlight=528"> 1p34.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615006"> Developmental and epileptic encephalopathy 15 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615006"> 615006 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606494"> ST3GAL3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606494"> 606494 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/642?start=-3&limit=10&highlight=642"> 1p32.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618437"> Developmental and epileptic encephalopathy 75 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618437"> 618437 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612036"> PARS2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612036"> 612036 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/674?start=-3&limit=10&highlight=674"> 1p31.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615859"> Developmental and epileptic encephalopathy 23 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615859"> 615859 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615730"> DOCK7 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615730"> 615730 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/901?start=-3&limit=10&highlight=901"> 1p13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616366"> Developmental and epileptic encephalopathy 32 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616366"> 616366 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/176262"> KCNA2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/176262"> 176262 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1056?start=-3&limit=10&highlight=1056"> 1q21.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620772"> Developmental and epileptic encephalopathy 113 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620772"> 620772 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/185860"> SV2A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/185860"> 185860 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1310?start=-3&limit=10&highlight=1310"> 1q23.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619605"> Developmental and epileptic encephalopathy 98 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619605"> 619605 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182340"> ATP1A2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182340"> 182340 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1476?start=-3&limit=10&highlight=1476"> 1q25.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618285"> Developmental and epileptic encephalopathy 69 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618285"> 618285 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601013"> CACNA1E </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601013"> 601013 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1477?start=-3&limit=10&highlight=1477"> 1q25.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620806"> Developmental and epileptic encephalopathy 116 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620806"> 620806 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138290"> GLUL </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138290"> 138290 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1527?start=-3&limit=10&highlight=1527"> 1q31.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617771"> Developmental and epileptic encephalopathy 57 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617771"> 617771 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610044"> KCNT2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610044"> 610044 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1742?start=-3&limit=10&highlight=1742"> 1q42.11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619777"> Developmental and epileptic encephalopathy 100 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619777"> 619777 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609100"> FBXO28 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609100"> 609100 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1796?start=-3&limit=10&highlight=1796"> 1q42.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617020"> Developmental and epileptic encephalopathy 38 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617020"> 617020 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611647"> ARV1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611647"> 611647 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1851?start=-3&limit=10&highlight=1851"> 1q44 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617391"> Developmental and epileptic encephalopathy 54 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617391"> 617391 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602869"> HNRNPU </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602869"> 602869 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/126?start=-3&limit=10&highlight=126"> 2p23.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616457"> Developmental and epileptic encephalopathy 50 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616457"> 616457 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114010"> CAD </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114010"> 114010 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/291?start=-3&limit=10&highlight=291"> 2p15 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618959"> ?Developmental and epileptic encephalopathy 88 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618959"> 618959 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/154200"> MDH1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/154200"> 154200 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/292?start=-3&limit=10&highlight=292"> 2p15 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618744"> Developmental and epileptic encephalopathy 83 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618744"> 618744 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/191760"> UGP2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/191760"> 191760 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/735?start=-3&limit=10&highlight=735"> 2q24.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617938"> Developmental and epileptic encephalopathy 62 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617938"> 617938 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182391"> SCN3A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182391"> 182391 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/736?start=-3&limit=10&highlight=736"> 2q24.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613721"> Developmental and epileptic encephalopathy 11 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613721"> 613721 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182390"> SCN2A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182390"> 182390 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/740?start=-3&limit=10&highlight=740"> 2q24.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619317"> Developmental and epileptic encephalopathy 6B, non-Dravet </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619317"> 619317 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182389"> SCN1A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182389"> 182389 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/740?start=-3&limit=10&highlight=740"> 2q24.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607208"> Dravet syndrome </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607208"> 607208 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182389"> SCN1A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182389"> 182389 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/767?start=-3&limit=10&highlight=767"> 2q31.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619124"> Developmental and epileptic encephalopathy 89 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619124"> 619124 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605363"> GAD1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605363"> 605363 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/774?start=-3&limit=10&highlight=774"> 2q31.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612949"> Developmental and epileptic encephalopathy 39 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612949"> 612949 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603667"> SLC25A12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603667"> 603667 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/871?start=-3&limit=10&highlight=871"> 2q32.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618328"> Developmental and epileptic encephalopathy 71 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618328"> 618328 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138280"> GLS </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138280"> 138280 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/200?start=-3&limit=10&highlight=200"> 3p22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618201"> Developmental and epileptic encephalopathy 68 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618201"> 618201 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608112"> TRAK1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608112"> 608112 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/296?start=-3&limit=10&highlight=296"> 3p21.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618910"> ?Developmental and epileptic encephalopathy 86 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618910"> 618910 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618904"> DALRD3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618904"> 618904 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/331?start=-3&limit=10&highlight=331"> 3p21.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619881"> Developmental and epileptic encephalopathy 102 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619881"> 619881 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604437"> SLC38A3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604437"> 604437 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/558?start=-3&limit=10&highlight=558"> 3q13.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618012"> Developmental and epileptic encephalopathy 93 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618012"> 618012 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607027"> ATP6V1A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607027"> 607027 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/688?start=-3&limit=10&highlight=688"> 3q22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617132"> Developmental and epileptic encephalopathy 44 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617132"> 617132 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610552"> UBA5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610552"> 610552 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/775?start=-3&limit=10&highlight=775"> 3q25.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618379"> Developmental and epileptic encephalopathy 73 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618379"> 618379 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609247"> RNF13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609247"> 609247 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/968?start=-3&limit=10&highlight=968"> 3q28-q29 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617166"> Developmental and epileptic encephalopathy 47 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617166"> 617166 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601513"> FGF12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601513"> 601513 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/17?start=-3&limit=10&highlight=17"> 4p16.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617976"> Developmental and epileptic encephalopathy 63 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617976"> 617976 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605032"> CPLX1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605032"> 605032 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/162?start=-3&limit=10&highlight=162"> 4p14 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618792"> Developmental and epileptic encephalopathy 84 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618792"> 618792 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603370"> UGDH </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603370"> 603370 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/184?start=-3&limit=10&highlight=184"> 4p12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617065"> ?Developmental and epileptic encephalopathy 40 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617065"> 617065 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617064"> GUF1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617064"> 617064 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/187?start=-3&limit=10&highlight=187"> 4p12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618557"> Developmental and epileptic encephalopathy 78 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618557"> 618557 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137140"> GABRA2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137140"> 137140 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/190?start=-3&limit=10&highlight=190"> 4p12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617153"> Developmental and epileptic encephalopathy 45 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617153"> 617153 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137190"> GABRB1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137190"> 137190 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/446?start=-3&limit=10&highlight=446"> 4q24 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617711"> Developmental and epileptic encephalopathy 91 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617711"> 617711 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114105"> PPP3CA </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114105"> 114105 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/719?start=-3&limit=10&highlight=719"> 4q35.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620028"> Developmental and epileptic encephalopathy 106 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620028"> 620028 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611482"> UFSP2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611482"> 611482 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/149?start=-3&limit=10&highlight=149"> 5p12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615871"> Developmental and epileptic encephalopathy 24 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615871"> 615871 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602780"> HCN1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602780"> 602780 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/711?start=-3&limit=10&highlight=711"> 5q33.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618008"> Developmental and epileptic encephalopathy 65 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618008"> 618008 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606323"> CYFIP2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606323"> 606323 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/733?start=-3&limit=10&highlight=733"> 5q34 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617829"> Developmental and epileptic encephalopathy 92 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617829"> 617829 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600232"> GABRB2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600232"> 600232 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/735?start=-3&limit=10&highlight=735"> 5q34 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615744"> Developmental and epileptic encephalopathy 19 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615744"> 615744 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137160"> GABRA1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137160"> 137160 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/736?start=-3&limit=10&highlight=736"> 5q34 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618396"> Developmental and epileptic encephalopathy 74 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618396"> 618396 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137164"> GABRG2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137164"> 137164 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/6/66?start=-3&limit=10&highlight=66"> 6p24.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618298"> Developmental and epileptic encephalopathy 70 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618298"> 618298 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608723"> PHACTR1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608723"> 608723 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/6/507?start=-3&limit=10&highlight=507"> 6p21.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617929"> Developmental and epileptic encephalopathy 60 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617929"> 617929 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610774"> CNPY3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610774"> 610774 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/6/775?start=-3&limit=10&highlight=775"> 6q21 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618916"> Developmental and epileptic encephalopathy 87 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618916"> 618916 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614720"> CDK19 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614720"> 614720 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/354?start=-3&limit=10&highlight=354"> 7q11.23 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617339"> Developmental and epileptic encephalopathy 51 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617339"> 617339 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/154100"> MDH2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/154100"> 154100 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/356?start=-3&limit=10&highlight=356"> 7q11.23 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617665"> Developmental and epileptic encephalopathy 56 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617665"> 617665 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605356"> YWHAG </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605356"> 605356 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/377?start=-3&limit=10&highlight=377"> 7q21.11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620149"> Developmental and epileptic encephalopathy 110 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620149"> 620149 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114204"> CACNA2D1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114204"> 114204 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/393?start=-3&limit=10&highlight=393"> 7q21.12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617933"> Developmental and epileptic encephalopathy 61 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617933"> 617933 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603709"> ADAM22 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603709"> 603709 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/511?start=-3&limit=10&highlight=511"> 7q22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618468"> Developmental and epileptic encephalopathy 76 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618468"> 618468 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612458"> ACTL6B </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612458"> 612458 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/121?start=-3&limit=10&highlight=121"> 8p21.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618004"> Developmental and epileptic encephalopathy 64 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618004"> 618004 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607352"> RHOBTB2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607352"> 607352 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/276?start=-3&limit=10&highlight=276"> 9q21.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617830"> Developmental and epileptic encephalopathy 58 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617830"> 617830 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600456"> NTRK2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600456"> 600456 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/351?start=-3&limit=10&highlight=351"> 9q22.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617904"> Developmental and epileptic encephalopathy 59 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617904"> 617904 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607340"> GABBR2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607340"> 607340 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/402?start=-3&limit=10&highlight=402"> 9q31.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616981"> Developmental and epileptic encephalopathy 37 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616981"> 616981 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604574"> FRRS1L </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604574"> 604574 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/518?start=-3&limit=10&highlight=518"> 9q34.11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612164"> Developmental and epileptic encephalopathy 4 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>, <abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612164"> 612164 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602926"> STXBP1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602926"> 602926 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/537?start=-3&limit=10&highlight=537"> 9q34.11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620352"> Developmental and epileptic encephalopathy 31B, autosomal recessive </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620352"> 620352 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602377"> DNM1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602377"> 602377 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/537?start=-3&limit=10&highlight=537"> 9q34.11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616346"> Developmental and epileptic encephalopathy 31A, autosomal dominant </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616346"> 616346 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602377"> DNM1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602377"> 602377 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/548?start=-3&limit=10&highlight=548"> 9q34.11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613477"> Developmental and epileptic encephalopathy 5 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613477"> 613477 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182810"> SPTAN1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182810"> 182810 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/642?start=-3&limit=10&highlight=642"> 9q34.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614959"> Developmental and epileptic encephalopathy 14 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614959"> 614959 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608167"> KCNT1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608167"> 608167 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/683?start=-3&limit=10&highlight=683"> 9q34.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619814"> Developmental and epileptic encephalopathy 101 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619814"> 619814 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138249"> GRIN1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138249"> 138249 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/10/49?start=-3&limit=10&highlight=49"> 10p14 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619561"> Developmental and epileptic encephalopathy 97 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619561"> 619561 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602538"> CELF2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602538"> 602538 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/11/42?start=-3&limit=10&highlight=42"> 11p15.5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609304"> Developmental and epileptic encephalopathy 3 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609304"> 609304 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609302"> SLC25A22 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609302"> 609302 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/11/165?start=-3&limit=10&highlight=165"> 11p15.4 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617281"> Developmental and epileptic encephalopathy 49 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617281"> 617281 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617278"> DENND5A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617278"> 617278 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/11/307?start=-3&limit=10&highlight=307"> 11p13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617105"> Developmental and epileptic encephalopathy 41 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617105"> 617105 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600300"> SLC1A2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600300"> 600300 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/108?start=-3&limit=10&highlight=108"> 12p13.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615833"> Developmental and epileptic encephalopathy 21 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615833"> 615833 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611623"> NECAP1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611623"> 611623 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/189?start=-3&limit=10&highlight=189"> 12p13.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616139"> Developmental and epileptic encephalopathy 27 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616139"> 616139 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138252"> GRIN2B </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138252"> 138252 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/390?start=-3&limit=10&highlight=390"> 12q13.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614558"> Developmental and epileptic encephalopathy 13 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614558"> 614558 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600702"> SCN8A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600702"> 600702 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/632?start=-3&limit=10&highlight=632"> 12q21.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619913"> Developmental and epileptic encephalopathy 103 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619913"> 619913 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/176256"> KCNC2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/176256"> 176256 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/810?start=-3&limit=10&highlight=810"> 12q24.11-q24.12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618141"> Developmental and epileptic encephalopathy 67 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618141"> 618141 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610648"> CUX2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610648"> 610648 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/300?start=-3&limit=10&highlight=300"> 14q23.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620537"> Developmental and epileptic encephalopathy 112 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620537"> 620537 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605716"> KCNH5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605716"> 605716 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/603?start=-3&limit=10&highlight=603"> 14q32.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618067"> Developmental and epileptic encephalopathy 66 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618067"> 618067 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610423"> PACS2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610423"> 610423 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/36?start=-3&limit=10&highlight=36"> 15q12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617113"> Developmental and epileptic encephalopathy 43 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617113"> 617113 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137192"> GABRB3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137192"> 137192 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/37?start=-3&limit=10&highlight=37"> 15q12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618559"> Developmental and epileptic encephalopathy 79 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618559"> 618559 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137142"> GABRA5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/137142"> 137142 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/214?start=-3&limit=10&highlight=214"> 15q21.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618663"> Developmental and epileptic encephalopathy 81 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618663"> 618663 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612186"> DMXL2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612186"> 612186 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/232?start=-3&limit=10&highlight=232"> 15q21.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618580"> Developmental and epileptic encephalopathy 80 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618580"> 618580 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604122"> PIGB </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604122"> 604122 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/455?start=-3&limit=10&highlight=455"> 15q25.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617276"> Developmental and epileptic encephalopathy 48 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617276"> 617276 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602166"> AP3B2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602166"> 602166 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/532?start=-3&limit=10&highlight=532"> 15q26.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615369"> Developmental and epileptic encephalopathy 94 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615369"> 615369 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602119"> CHD2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602119"> 602119 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/31?start=-3&limit=10&highlight=31"> 16p13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618548"> Multiple congenital anomalies-hypotonia-seizures syndrome 4 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618548"> 618548 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605754"> PIGQ </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605754"> 605754 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/108?start=-3&limit=10&highlight=108"> 16p13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615338"> Developmental and epileptic encephalopathy 16 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615338"> 615338 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613577"> TBC1D24 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613577"> 613577 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/450?start=-3&limit=10&highlight=450"> 16q13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615473"> Developmental and epileptic encephalopathy 17 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615473"> 615473 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/139311"> GNAO1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/139311"> 139311 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/506?start=-3&limit=10&highlight=506"> 16q21 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618721"> Developmental and epileptic encephalopathy 82 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618721"> 618721 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138150"> GOT2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138150"> 138150 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/603?start=-3&limit=10&highlight=603"> 16q22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616339"> Developmental and epileptic encephalopathy 29 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616339"> 616339 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601065"> AARS1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601065"> 601065 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/666?start=-3&limit=10&highlight=666"> 16q23.1-q23.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616211"> Developmental and epileptic encephalopathy 28 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616211"> 616211 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605131"> WWOX </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605131"> 605131 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/124?start=-3&limit=10&highlight=124"> 17p13.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615905"> Developmental and epileptic encephalopathy 25, with amelogenesis imperfecta </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615905"> 615905 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608305"> SLC13A5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608305"> 608305 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/341?start=-3&limit=10&highlight=341"> 17q11.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618143"> Developmental and epileptic encephalopathy 95 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618143"> 618143 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610271"> PIGS </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610271"> 610271 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/485?start=-3&limit=10&highlight=485"> 17q12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618374"> Developmental and epileptic encephalopathy 72 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618374"> 618374 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601725"> NEUROD2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601725"> 601725 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/578?start=-3&limit=10&highlight=578"> 17q21.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619970"> Developmental and epileptic encephalopathy 104 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619970"> 619970 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/192130"> ATP6V0A1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/192130"> 192130 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/668?start=-3&limit=10&highlight=668"> 17q21.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619340"> Developmental and epileptic encephalopathy 96 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619340"> 619340 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601633"> NSF </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601633"> 601633 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/712?start=-3&limit=10&highlight=712"> 17q21.32 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620783"> Developmental and epileptic encephalopathy 115 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620783"> 620783 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610904"> SNF8 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610904"> 610904 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/928?start=-3&limit=10&highlight=928"> 17q25.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619983"> Developmental and epileptic encephalopathy 105 with hypopituitarism </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619983"> 619983 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605752"> HID1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605752"> 605752 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/107?start=-3&limit=10&highlight=107"> 19p13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620145"> Developmental and epileptic encephalopathy 109 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620145"> 620145 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603619"> FZR1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603619"> 603619 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/355?start=-3&limit=10&highlight=355"> 19p13.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617106"> Developmental and epileptic encephalopathy 42 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617106"> 617106 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601011"> CACNA1A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601011"> 601011 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/452?start=-3&limit=10&highlight=452"> 19p13.11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620115"> Developmental and epileptic encephalopathy 108 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620115"> 620115 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612258"> MAST3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612258"> 612258 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/567?start=-3&limit=10&highlight=567"> 19q13.11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617350"> Developmental and epileptic encephalopathy 52 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617350"> 617350 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600235"> SCN1B </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600235"> 600235 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/745?start=-3&limit=10&highlight=745"> 19q13.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619606"> Developmental and epileptic encephalopathy 99 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619606"> 619606 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182350"> ATP1A3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182350"> 182350 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/895?start=-3&limit=10&highlight=895"> 19q13.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617162"> Developmental and epileptic encephalopathy 46 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617162"> 617162 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602717"> GRIN2D </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602717"> 602717 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/967?start=-3&limit=10&highlight=967"> 19q13.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613402"> Microcephaly, seizures, and developmental delay </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613402"> 613402 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605610"> PNKP </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605610"> 605610 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/50?start=-3&limit=10&highlight=50"> 20p13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616647"> Developmental and epileptic encephalopathy 35 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616647"> 616647 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/147520"> ITPA </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/147520"> 147520 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/92?start=-3&limit=10&highlight=92"> 20p12.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613722"> Developmental and epileptic encephalopathy 12 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613722"> 613722 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607120"> PLCB1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607120"> 607120 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/149?start=-3&limit=10&highlight=149"> 20p11.21 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620033"> Developmental and epileptic encephalopathy 107 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620033"> 620033 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611270"> NAPB </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611270"> 611270 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/282?start=-3&limit=10&highlight=282"> 20q11.23 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620774"> Developmental and epileptic encephalopathy 114 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620774"> 620774 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616440"> SLC32A1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616440"> 616440 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/353?start=-3&limit=10&highlight=353"> 20q13.12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616645"> Developmental and epileptic encephalopathy 34 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616645"> 616645 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606726"> SLC12A5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606726"> 606726 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/374?start=-3&limit=10&highlight=374"> 20q13.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616056"> Developmental and epileptic encephalopathy 26 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616056"> 616056 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600397"> KCNB1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600397"> 600397 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/471?start=-3&limit=10&highlight=471"> 20q13.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613720"> Developmental and epileptic encephalopathy 7 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613720"> 613720 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602235"> KCNQ2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602235"> 602235 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/20/472?start=-3&limit=10&highlight=472"> 20q13.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616409"> Developmental and epileptic encephalopathy 33 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616409"> 616409 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602959"> EEF1A2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602959"> 602959 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/21/62?start=-3&limit=10&highlight=62"> 21q22.11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617389"> Developmental and epileptic encephalopathy 53 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617389"> 617389 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604297"> SYNJ1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604297"> 604297 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/21/97?start=-3&limit=10&highlight=97"> 21q22.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617599"> Developmental and epileptic encephalopathy 55 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617599"> 617599 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605938"> PIGP </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605938"> 605938 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/21/145?start=-3&limit=10&highlight=145"> 21q22.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616341"> Developmental and epileptic encephalopathy 30 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616341"> 616341 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605705"> SIK1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605705"> 605705 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/22/192?start=-3&limit=10&highlight=192"> 22q12.2-q12.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620504"> Developmental and epileptic encephalopathy 111 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620504"> 620504 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614191"> DEPDC5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614191"> 614191 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/78?start=-3&limit=10&highlight=78"> Xp22.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300868"> Multiple congenital anomalies-hypotonia-seizures syndrome 2 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked recessive">XLR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300868"> 300868 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/311770"> PIGA </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/311770"> 311770 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/99?start=-3&limit=10&highlight=99"> Xp22.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300672"> Developmental and epileptic encephalopathy 2 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked dominant">XLD</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300672"> 300672 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300203"> CDKL5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300203"> 300203 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/132?start=-3&limit=10&highlight=132"> Xp21.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/308350"> Developmental and epileptic encephalopathy 1 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked recessive">XLR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/308350"> 308350 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300382"> ARX </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300382"> 300382 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/262?start=-3&limit=10&highlight=262"> Xp11.23 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300896"> Congenital disorder of glycosylation, type IIm </a>
</span>
</td>
<td>
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<abbr class="mim-tip-hint" title="Somatic mosaicism">SMo</abbr>, <abbr class="mim-tip-hint" title="X-linked dominant">XLD</abbr>
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<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<a href="/entry/300896"> 300896 </a>
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<a href="/entry/314375"> SLC35A2 </a>
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<span class="mim-font">
<a href="/entry/314375"> 314375 </a>
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<span class="mim-font">
<a href="/geneMap/X/325?start=-3&limit=10&highlight=325"> Xp11.22 </a>
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<span class="mim-font">
<a href="/entry/301044"> Developmental and epileptic encephalopathy 85, with or without midline brain defects </a>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked dominant">XLD</abbr>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<span class="mim-font">
<a href="/entry/301044"> 301044 </a>
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<span class="mim-font">
<a href="/entry/300040"> SMC1A </a>
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<span class="mim-font">
<a href="/entry/300040"> 300040 </a>
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<span class="mim-font">
<a href="/geneMap/X/363?start=-3&limit=10&highlight=363"> Xq11.1 </a>
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<span class="mim-font">
<a href="/entry/300607"> Developmental and epileptic encephalopathy 8 </a>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked">XL</abbr>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<span class="mim-font">
<a href="/entry/300607"> 300607 </a>
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<span class="mim-font">
<a href="/entry/300429"> ARHGEF9 </a>
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<span class="mim-font">
<a href="/entry/300429"> 300429 </a>
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<span class="mim-font">
<a href="/geneMap/X/487?start=-3&limit=10&highlight=487"> Xq22.1 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/300088"> Developmental and epileptic encephalopathy 9 </a>
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<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked">XL</abbr>
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<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<span class="mim-font">
<a href="/entry/300088"> 300088 </a>
</span>
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<span class="mim-font">
<a href="/entry/300460"> PCDH19 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300460"> 300460 </a>
</span>
</td>
</tr>
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<span class="mim-font">
<a href="/geneMap/X/576?start=-3&limit=10&highlight=576"> Xq23 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/300884"> Developmental and epileptic encephalopathy 36 </a>
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<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked">XL</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/300884"> 300884 </a>
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<span class="mim-font">
<a href="/entry/300776"> ALG13 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/300776"> 300776 </a>
</span>
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</tr>
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<td>
<span class="mim-font">
<a href="/geneMap/X/729?start=-3&limit=10&highlight=729"> Xq26.3-q27.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/301058"> Developmental and epileptic encephalopathy 90 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked dominant">XLD</abbr>, <abbr class="mim-tip-hint" title="X-linked recessive">XLR</abbr>
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</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/301058"> 301058 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300070"> FGF13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300070"> 300070 </a>
</span>
</td>
</tr>
</tbody>
</table>
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<p>A number sign (#) is used with this entry because of evidence that developmental and epileptic encephalopathy-7 (DEE7) is caused by heterozygous mutation in the KCNQ2 gene (<a href="/entry/602235">602235</a>) on chromosome 20q13.</p><p>Mutation in the KCNQ2 gene can also cause benign familial neonatal seizures-1 (BFNS1; <a href="/entry/121200">121200</a>).</p>
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<strong>Description</strong>
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<p>Developmental and epileptic encephalopathy-7 (DEE7) is a neurologic disorder characterized by the onset of refractory seizures in early infancy, often in the neonatal period. Affected individuals have resultant delayed neurologic development and persistent neurologic abnormalities. EEG initially shows a burst suppression pattern, consistent with a clinical diagnosis of Ohtahara syndrome, which may later evolve to multifocal epileptiform activity. Brain imaging in some patients shows lesions in the basal ganglia. Seizures usually remit by age 3 or 4 years, with improvement of EEG abnormalities and possibly brain imaging abnormalities, but the severe neurologic deficits persist (summary by <a href="#1" class="mim-tip-reference" title="Borgatti, R., Zucca, C., Cavallini, A., Ferrario, M., Panzeri, C., Castaldo, P., Soldovieri, M. V., Baschirotto, C., Bresolin, N., Dalla Bernardina, B., Taglialatela, M., Bassi, M. T. &lt;strong&gt;A novel mutation in KCNQ2 associated with BFNC, drug resistant epilepsy, and mental retardation.&lt;/strong&gt; Neurology 63: 57-65, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15249611/&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;15249611&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/01.wnl.0000132979.08394.6d&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="15249611">Borgatti et al., 2004</a> and <a href="#5" class="mim-tip-reference" title="Weckhuysen, S., Mandelstam, S., Suls, A., Audenaert, D., Deconinck, T., Claes, L. R. F., Deprez, L., Smets, K., Hristova, D., Yordanova, I., Jordanova, A., Ceulemans, B., and 11 others. &lt;strong&gt;KCNQ2 encephalopathy: emerging phenotype of a neonatal epileptic encephalopathy.&lt;/strong&gt; Ann. Neurol. 71: 15-25, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22275249/&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;22275249&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.22644&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="22275249">Weckhuysen et al., 2012</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=22275249+15249611" 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="clinicalFeatures" class="mim-anchor"></a>
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<strong>Clinical Features</strong>
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<p><a href="#2" class="mim-tip-reference" title="Dedek, K., Fusco, L., Teloy, N., Steinlein, O. K. &lt;strong&gt;Neonatal convulsions and epileptic encephalopathy in an Italian family with a missense mutation in the fifth transmembrane region of KCNQ2.&lt;/strong&gt; Epilepsy Res. 54: 21-27, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12742592/&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;12742592&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0920-1211(03)00037-8&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="12742592">Dedek et al. (2003)</a> reported a mother and son with early-onset epilepsy with different outcomes. The son had onset of seizures on day 3 of life and the mother at age 1 month. Both patients had a severe course characterized by drug-resistant seizures necessitating ACTH treatment. EEG studies in the son showed sharp waves and suppression burst patterns. He had epileptic encephalopathy and delayed psychomotor development with hypotonia and dystonia. In contrast, the mother had remission of her seizures in infancy and subsequently showed normal psychomotor development. Genetic analysis identified a heterozygous KCNQ2 mutation (S247W; <a href="/entry/602235#0008">602235.0008</a>) in both patients. The report emphasized the phenotypic variability associated with mutations in the KCNQ2 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12742592" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#1" class="mim-tip-reference" title="Borgatti, R., Zucca, C., Cavallini, A., Ferrario, M., Panzeri, C., Castaldo, P., Soldovieri, M. V., Baschirotto, C., Bresolin, N., Dalla Bernardina, B., Taglialatela, M., Bassi, M. T. &lt;strong&gt;A novel mutation in KCNQ2 associated with BFNC, drug resistant epilepsy, and mental retardation.&lt;/strong&gt; Neurology 63: 57-65, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15249611/&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;15249611&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/01.wnl.0000132979.08394.6d&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="15249611">Borgatti et al. (2004)</a> reported a family in which 4 members in 2 generations had a heterozygous mutation in the KCNQ2 gene (<a href="/entry/602235#0007">602235.0007</a>). Two patients had a phenotype consistent with typical benign familial neonatal seizures, whereas the other 2 had an atypical severe phenotype. After apparent resolution of BFNS at day 8 of life, the proband developed frequent right-sided tonic seizures in clusters (more than 60 per day) that were resistant to medication. At age 4 months, she developed polymorphic seizures which persisted to age 7 years, at the writing of the report. She also had severe mental retardation without language capability and spastic tetraparesis, consistent with an epileptic encephalopathy. The proband's mother and younger sister had isolated BFNS only, which resolved without sequelae. The proband's maternal aunt had BFNS and drug-resistant seizures until age 5 years. As an adult, she showed moderate mental retardation, mild dysmetria and ataxia, and nystagmus. <a href="#1" class="mim-tip-reference" title="Borgatti, R., Zucca, C., Cavallini, A., Ferrario, M., Panzeri, C., Castaldo, P., Soldovieri, M. V., Baschirotto, C., Bresolin, N., Dalla Bernardina, B., Taglialatela, M., Bassi, M. T. &lt;strong&gt;A novel mutation in KCNQ2 associated with BFNC, drug resistant epilepsy, and mental retardation.&lt;/strong&gt; Neurology 63: 57-65, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15249611/&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;15249611&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/01.wnl.0000132979.08394.6d&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="15249611">Borgatti et al. (2004)</a> noted that some patients with KCNQ2 mutations may experience seizures later in life or a different set of epileptic subtypes that are sometimes associated with severe neurologic and intellectual impairment. Overall, the clinical, genetic, and functional data did not provide a definitive explanation for the wide range of phenotypic variability observed in the family, therefore preventing genotype-phenotype correlations. The authors noted that the phenotypic variability could be due to the interplay of pathogenic mutations, modifier genes, and more subtle environmental factors, but thought that the complex phenotype and intrafamilial variability in this family was caused by a single mutation and referred to the report by <a href="#2" class="mim-tip-reference" title="Dedek, K., Fusco, L., Teloy, N., Steinlein, O. K. &lt;strong&gt;Neonatal convulsions and epileptic encephalopathy in an Italian family with a missense mutation in the fifth transmembrane region of KCNQ2.&lt;/strong&gt; Epilepsy Res. 54: 21-27, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12742592/&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;12742592&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0920-1211(03)00037-8&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="12742592">Dedek et al. (2003)</a> of a similar atypical BFNS phenotype. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=15249611+12742592" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#5" class="mim-tip-reference" title="Weckhuysen, S., Mandelstam, S., Suls, A., Audenaert, D., Deconinck, T., Claes, L. R. F., Deprez, L., Smets, K., Hristova, D., Yordanova, I., Jordanova, A., Ceulemans, B., and 11 others. &lt;strong&gt;KCNQ2 encephalopathy: emerging phenotype of a neonatal epileptic encephalopathy.&lt;/strong&gt; Ann. Neurol. 71: 15-25, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22275249/&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;22275249&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.22644&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="22275249">Weckhuysen et al. (2012)</a> reported 8 unrelated patients with neonatal epileptic encephalopathy. All patients had onset of seizures in the first week of life, and 2 mothers retrospectively noted intrauterine jerking during the last 2 months of pregnancy. At onset, all patients had multiple daily tonic seizures with motor and autonomic features that were resistant to treatment. Thereafter, seizure frequency decreased between 9 months and 4 years, and most became seizure-free. One patient still had frequent seizures at age 5.5 years, and another had recurrence of seizures at age 8 years after being seizure-free for 7 years. Seven patients were profoundly mentally impaired and had axial hypotonia and/or spastic quadriplegia. One patient had a slightly milder phenotype, but still showed psychomotor impairment. Brain imaging of patients showed variable T1- and T2-weighted hyperintensities in the basal ganglia and sometimes in the thalamus. In some cases, these lesions became less apparent with age. The EEG initially showed burst suppression patterns and later showed multiform epileptiform abnormalities. One of the severely affected children had a father who was mosaic for the KCNQ2 mutation (R213Q; <a href="/entry/602235#0012">602235.0012</a>); the father had benign neonatal seizures, normal intellect at age 35 years, and a history of mild myokymia. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22275249" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#3" class="mim-tip-reference" title="Kato, M., Yamagata, T., Kubota, M., Arai, H., Yamashita, S., Nakagawa, T., Fujii, T., Sugai, K., Imai, K., Uster, T., Chitayat, D., Weiss, S., and 15 others. &lt;strong&gt;Clinical spectrum of early onset epileptic encephalopathies caused by KCNQ2 mutation.&lt;/strong&gt; Epilepsia 54: 1282-1287, 2013.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23621294/&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;23621294&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/epi.12200&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="23621294">Kato et al. (2013)</a> reported the clinical features of 12 unrelated patients with early-onset epileptic encephalopathy. All patients developed seizures, mainly tonic, in the early neonatal period (1 to 14 days). EEG of most patients showed a suppression-burst pattern; 3 patients had hypsarrhythmia. Ten patients were diagnosed clinically with Ohtahara syndrome. All patients showed impaired intellectual development with moderate to profound psychomotor delay, and many had spastic quadriplegia. Six patients had abnormal brain MRI, with hyperintensities in the globus pallidus and abnormal myelination. Most patients achieved remission of seizures with anticonvulsant medications, particularly those that block voltage-gated sodium channels, although the overall neurologic prognosis was poor. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23621294" 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 transmission pattern of DEE7 in the family reported by <a href="#2" class="mim-tip-reference" title="Dedek, K., Fusco, L., Teloy, N., Steinlein, O. K. &lt;strong&gt;Neonatal convulsions and epileptic encephalopathy in an Italian family with a missense mutation in the fifth transmembrane region of KCNQ2.&lt;/strong&gt; Epilepsy Res. 54: 21-27, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12742592/&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;12742592&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0920-1211(03)00037-8&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="12742592">Dedek et al. (2003)</a> was consistent with autosomal dominant inheritance with variable expressivity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12742592" 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>The heterozygous mutations in the KCNQ2 gene that were identified in patients with DEE7 by <a href="#5" class="mim-tip-reference" title="Weckhuysen, S., Mandelstam, S., Suls, A., Audenaert, D., Deconinck, T., Claes, L. R. F., Deprez, L., Smets, K., Hristova, D., Yordanova, I., Jordanova, A., Ceulemans, B., and 11 others. &lt;strong&gt;KCNQ2 encephalopathy: emerging phenotype of a neonatal epileptic encephalopathy.&lt;/strong&gt; Ann. Neurol. 71: 15-25, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22275249/&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;22275249&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.22644&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="22275249">Weckhuysen et al. (2012)</a> occurred de novo. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22275249" 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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<div>
<a id="molecularGenetics" class="mim-anchor"></a>
<h4 href="#mimMolecularGeneticsFold" id="mimMolecularGeneticsToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimMolecularGeneticsToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
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<strong>Molecular Genetics</strong>
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<p>In a boy with DEE7, <a href="#2" class="mim-tip-reference" title="Dedek, K., Fusco, L., Teloy, N., Steinlein, O. K. &lt;strong&gt;Neonatal convulsions and epileptic encephalopathy in an Italian family with a missense mutation in the fifth transmembrane region of KCNQ2.&lt;/strong&gt; Epilepsy Res. 54: 21-27, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12742592/&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;12742592&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0920-1211(03)00037-8&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="12742592">Dedek et al. (2003)</a> identified a heterozygous missense mutation in the KCNQ2 gene (S247W; <a href="/entry/602235#0008">602235.0008</a>). The mutation was inherited from his mother, who had a milder phenotype with resolution of seizures in infancy and subsequent normal development. Functional expression studies showed that the S247W mutation reduced channel currents by more than 50% in homomeric KCNQ2 channels. <a href="#2" class="mim-tip-reference" title="Dedek, K., Fusco, L., Teloy, N., Steinlein, O. K. &lt;strong&gt;Neonatal convulsions and epileptic encephalopathy in an Italian family with a missense mutation in the fifth transmembrane region of KCNQ2.&lt;/strong&gt; Epilepsy Res. 54: 21-27, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12742592/&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;12742592&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0920-1211(03)00037-8&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="12742592">Dedek et al. (2003)</a> emphasized that some KCNQ2 mutations may be associated with a more severe phenotype than is typical for BFNS. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12742592" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#5" class="mim-tip-reference" title="Weckhuysen, S., Mandelstam, S., Suls, A., Audenaert, D., Deconinck, T., Claes, L. R. F., Deprez, L., Smets, K., Hristova, D., Yordanova, I., Jordanova, A., Ceulemans, B., and 11 others. &lt;strong&gt;KCNQ2 encephalopathy: emerging phenotype of a neonatal epileptic encephalopathy.&lt;/strong&gt; Ann. Neurol. 71: 15-25, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22275249/&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;22275249&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.22644&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="22275249">Weckhuysen et al. (2012)</a> identified 7 different heterozygous mutations in the KCNQ2 gene (see, e.g., <a href="/entry/602235#0012">602235.0012</a>-<a href="/entry/602235#0014">602235.0014</a>) in 8 (10%) of 80 patients with neonatal or early infantile seizures and associated psychomotor retardation. The mutations arose de novo in 7 cases; in 1 case, a severely affected patient inherited the mutation from her father, who had a milder phenotype and was mosaic for the mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22275249" 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="Saitsu, H., Kato, M., Koide, A., Goto, T., Fujita, T., Nishiyama, K., Tsurusaki, Y., Doi, H., Miyake, N., Hayasaka, K., Matsumoto, N. &lt;strong&gt;Whole exome sequencing identifies KCNQ2 mutations in Ohtahara syndrome.&lt;/strong&gt; Ann. Neurol. 72: 298-300, 2012.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/22926866/&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;22926866&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.23620&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="22926866">Saitsu et al. (2012)</a> identified 3 different de novo missense mutations in the KCNQ2 gene (see, e.g., A265V; <a href="/entry/602235#0015">602235.0015</a>) in 3 of 12 probands with DEE and onset of seizures in the first week of life. The phenotype was consistent with a clinical diagnosis of Ohtahara syndrome. The mutations were found by whole-exome sequencing. Functional studies of the variants were not performed. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22926866" 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 high-resolution melting analysis or whole-exome sequencing of 239 patients with early-onset epileptic encephalopathy, <a href="#3" class="mim-tip-reference" title="Kato, M., Yamagata, T., Kubota, M., Arai, H., Yamashita, S., Nakagawa, T., Fujii, T., Sugai, K., Imai, K., Uster, T., Chitayat, D., Weiss, S., and 15 others. &lt;strong&gt;Clinical spectrum of early onset epileptic encephalopathies caused by KCNQ2 mutation.&lt;/strong&gt; Epilepsia 54: 1282-1287, 2013.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23621294/&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;23621294&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/epi.12200&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="23621294">Kato et al. (2013)</a> found that 12 patients carried a total of 10 heterozygous missense mutations in the KCNQ2 gene. The mutations occurred de novo in all patients except one, who inherited the mutation from her mildly affected mother who was somatic mosaic for the mutation. Several of the mutations had previously been reported (see, e.g., A265V, <a href="/entry/602235#0015">602235.0015</a>), but functional studies were not performed. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23621294" 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="references"class="mim-anchor"></a>
<h4 href="#mimReferencesFold" id="mimReferencesToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span class="mim-font">
<span id="mimReferencesToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>REFERENCES</strong>
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<a id="1" class="mim-anchor"></a>
<a id="Borgatti2004" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Borgatti, R., Zucca, C., Cavallini, A., Ferrario, M., Panzeri, C., Castaldo, P., Soldovieri, M. V., Baschirotto, C., Bresolin, N., Dalla Bernardina, B., Taglialatela, M., Bassi, M. T.
<strong>A novel mutation in KCNQ2 associated with BFNC, drug resistant epilepsy, and mental retardation.</strong>
Neurology 63: 57-65, 2004.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/15249611/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">15249611</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15249611" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1212/01.wnl.0000132979.08394.6d" target="_blank">Full Text</a>]
</p>
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</li>
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<a id="2" class="mim-anchor"></a>
<a id="Dedek2003" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Dedek, K., Fusco, L., Teloy, N., Steinlein, O. K.
<strong>Neonatal convulsions and epileptic encephalopathy in an Italian family with a missense mutation in the fifth transmembrane region of KCNQ2.</strong>
Epilepsy Res. 54: 21-27, 2003.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12742592/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12742592</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12742592" 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/s0920-1211(03)00037-8" target="_blank">Full Text</a>]
</p>
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<a id="3" class="mim-anchor"></a>
<a id="Kato2013" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Kato, M., Yamagata, T., Kubota, M., Arai, H., Yamashita, S., Nakagawa, T., Fujii, T., Sugai, K., Imai, K., Uster, T., Chitayat, D., Weiss, S., and 15 others.
<strong>Clinical spectrum of early onset epileptic encephalopathies caused by KCNQ2 mutation.</strong>
Epilepsia 54: 1282-1287, 2013.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/23621294/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">23621294</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23621294" 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/epi.12200" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="4" class="mim-anchor"></a>
<a id="Saitsu2012" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Saitsu, H., Kato, M., Koide, A., Goto, T., Fujita, T., Nishiyama, K., Tsurusaki, Y., Doi, H., Miyake, N., Hayasaka, K., Matsumoto, N.
<strong>Whole exome sequencing identifies KCNQ2 mutations in Ohtahara syndrome.</strong>
Ann. Neurol. 72: 298-300, 2012.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/22926866/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">22926866</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22926866" 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/ana.23620" target="_blank">Full Text</a>]
</p>
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</li>
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<a id="5" class="mim-anchor"></a>
<a id="Weckhuysen2012" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Weckhuysen, S., Mandelstam, S., Suls, A., Audenaert, D., Deconinck, T., Claes, L. R. F., Deprez, L., Smets, K., Hristova, D., Yordanova, I., Jordanova, A., Ceulemans, B., and 11 others.
<strong>KCNQ2 encephalopathy: emerging phenotype of a neonatal epileptic encephalopathy.</strong>
Ann. Neurol. 71: 15-25, 2012.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/22275249/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">22275249</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=22275249" 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/ana.22644" target="_blank">Full Text</a>]
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<a href="#mimCollapseContributors" role="button" data-toggle="collapse"> Contributors: </a>
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<span class="mim-text-font">
Cassandra L. Kniffin - updated : 3/6/2014
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<span class="mim-text-font">
Cassandra L. Kniffin - updated : 10/18/2012
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Creation Date:
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Cassandra L. Kniffin : 2/3/2011
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<a href="#mimCollapseEditHistory" role="button" data-toggle="collapse"> Edit History: </a>
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carol : 10/13/2020
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ckniffin : 10/13/2020<br>carol : 10/06/2020<br>carol : 06/05/2018<br>carol : 04/20/2018<br>alopez : 03/18/2014<br>mcolton : 3/10/2014<br>ckniffin : 3/6/2014<br>carol : 1/8/2013<br>carol : 11/6/2012<br>ckniffin : 10/18/2012<br>terry : 3/3/2011<br>carol : 2/10/2011<br>ckniffin : 2/10/2011
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<strong>#</strong> 613720
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DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 7; DEE7
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<em>Alternative titles; symbols</em>
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EPILEPTIC ENCEPHALOPATHY, EARLY INFANTILE, 7; EIEE7
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<strong>ORPHA:</strong> 439218; &nbsp;
<strong>DO:</strong> 0080462; &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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20q13.33
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Developmental and epileptic encephalopathy 7
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613720
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Autosomal dominant
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3
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KCNQ2
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602235
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that developmental and epileptic encephalopathy-7 (DEE7) is caused by heterozygous mutation in the KCNQ2 gene (602235) on chromosome 20q13.</p><p>Mutation in the KCNQ2 gene can also cause benign familial neonatal seizures-1 (BFNS1; 121200).</p>
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<strong>Description</strong>
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<p>Developmental and epileptic encephalopathy-7 (DEE7) is a neurologic disorder characterized by the onset of refractory seizures in early infancy, often in the neonatal period. Affected individuals have resultant delayed neurologic development and persistent neurologic abnormalities. EEG initially shows a burst suppression pattern, consistent with a clinical diagnosis of Ohtahara syndrome, which may later evolve to multifocal epileptiform activity. Brain imaging in some patients shows lesions in the basal ganglia. Seizures usually remit by age 3 or 4 years, with improvement of EEG abnormalities and possibly brain imaging abnormalities, but the severe neurologic deficits persist (summary by Borgatti et al., 2004 and Weckhuysen et al., 2012). </p>
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<strong>Clinical Features</strong>
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<p>Dedek et al. (2003) reported a mother and son with early-onset epilepsy with different outcomes. The son had onset of seizures on day 3 of life and the mother at age 1 month. Both patients had a severe course characterized by drug-resistant seizures necessitating ACTH treatment. EEG studies in the son showed sharp waves and suppression burst patterns. He had epileptic encephalopathy and delayed psychomotor development with hypotonia and dystonia. In contrast, the mother had remission of her seizures in infancy and subsequently showed normal psychomotor development. Genetic analysis identified a heterozygous KCNQ2 mutation (S247W; 602235.0008) in both patients. The report emphasized the phenotypic variability associated with mutations in the KCNQ2 gene. </p><p>Borgatti et al. (2004) reported a family in which 4 members in 2 generations had a heterozygous mutation in the KCNQ2 gene (602235.0007). Two patients had a phenotype consistent with typical benign familial neonatal seizures, whereas the other 2 had an atypical severe phenotype. After apparent resolution of BFNS at day 8 of life, the proband developed frequent right-sided tonic seizures in clusters (more than 60 per day) that were resistant to medication. At age 4 months, she developed polymorphic seizures which persisted to age 7 years, at the writing of the report. She also had severe mental retardation without language capability and spastic tetraparesis, consistent with an epileptic encephalopathy. The proband's mother and younger sister had isolated BFNS only, which resolved without sequelae. The proband's maternal aunt had BFNS and drug-resistant seizures until age 5 years. As an adult, she showed moderate mental retardation, mild dysmetria and ataxia, and nystagmus. Borgatti et al. (2004) noted that some patients with KCNQ2 mutations may experience seizures later in life or a different set of epileptic subtypes that are sometimes associated with severe neurologic and intellectual impairment. Overall, the clinical, genetic, and functional data did not provide a definitive explanation for the wide range of phenotypic variability observed in the family, therefore preventing genotype-phenotype correlations. The authors noted that the phenotypic variability could be due to the interplay of pathogenic mutations, modifier genes, and more subtle environmental factors, but thought that the complex phenotype and intrafamilial variability in this family was caused by a single mutation and referred to the report by Dedek et al. (2003) of a similar atypical BFNS phenotype. </p><p>Weckhuysen et al. (2012) reported 8 unrelated patients with neonatal epileptic encephalopathy. All patients had onset of seizures in the first week of life, and 2 mothers retrospectively noted intrauterine jerking during the last 2 months of pregnancy. At onset, all patients had multiple daily tonic seizures with motor and autonomic features that were resistant to treatment. Thereafter, seizure frequency decreased between 9 months and 4 years, and most became seizure-free. One patient still had frequent seizures at age 5.5 years, and another had recurrence of seizures at age 8 years after being seizure-free for 7 years. Seven patients were profoundly mentally impaired and had axial hypotonia and/or spastic quadriplegia. One patient had a slightly milder phenotype, but still showed psychomotor impairment. Brain imaging of patients showed variable T1- and T2-weighted hyperintensities in the basal ganglia and sometimes in the thalamus. In some cases, these lesions became less apparent with age. The EEG initially showed burst suppression patterns and later showed multiform epileptiform abnormalities. One of the severely affected children had a father who was mosaic for the KCNQ2 mutation (R213Q; 602235.0012); the father had benign neonatal seizures, normal intellect at age 35 years, and a history of mild myokymia. </p><p>Kato et al. (2013) reported the clinical features of 12 unrelated patients with early-onset epileptic encephalopathy. All patients developed seizures, mainly tonic, in the early neonatal period (1 to 14 days). EEG of most patients showed a suppression-burst pattern; 3 patients had hypsarrhythmia. Ten patients were diagnosed clinically with Ohtahara syndrome. All patients showed impaired intellectual development with moderate to profound psychomotor delay, and many had spastic quadriplegia. Six patients had abnormal brain MRI, with hyperintensities in the globus pallidus and abnormal myelination. Most patients achieved remission of seizures with anticonvulsant medications, particularly those that block voltage-gated sodium channels, although the overall neurologic prognosis was poor. </p>
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<strong>Inheritance</strong>
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<p>The transmission pattern of DEE7 in the family reported by Dedek et al. (2003) was consistent with autosomal dominant inheritance with variable expressivity. </p><p>The heterozygous mutations in the KCNQ2 gene that were identified in patients with DEE7 by Weckhuysen et al. (2012) occurred de novo. </p>
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<strong>Molecular Genetics</strong>
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<p>In a boy with DEE7, Dedek et al. (2003) identified a heterozygous missense mutation in the KCNQ2 gene (S247W; 602235.0008). The mutation was inherited from his mother, who had a milder phenotype with resolution of seizures in infancy and subsequent normal development. Functional expression studies showed that the S247W mutation reduced channel currents by more than 50% in homomeric KCNQ2 channels. Dedek et al. (2003) emphasized that some KCNQ2 mutations may be associated with a more severe phenotype than is typical for BFNS. </p><p>Weckhuysen et al. (2012) identified 7 different heterozygous mutations in the KCNQ2 gene (see, e.g., 602235.0012-602235.0014) in 8 (10%) of 80 patients with neonatal or early infantile seizures and associated psychomotor retardation. The mutations arose de novo in 7 cases; in 1 case, a severely affected patient inherited the mutation from her father, who had a milder phenotype and was mosaic for the mutation. </p><p>Saitsu et al. (2012) identified 3 different de novo missense mutations in the KCNQ2 gene (see, e.g., A265V; 602235.0015) in 3 of 12 probands with DEE and onset of seizures in the first week of life. The phenotype was consistent with a clinical diagnosis of Ohtahara syndrome. The mutations were found by whole-exome sequencing. Functional studies of the variants were not performed. </p><p>By high-resolution melting analysis or whole-exome sequencing of 239 patients with early-onset epileptic encephalopathy, Kato et al. (2013) found that 12 patients carried a total of 10 heterozygous missense mutations in the KCNQ2 gene. The mutations occurred de novo in all patients except one, who inherited the mutation from her mildly affected mother who was somatic mosaic for the mutation. Several of the mutations had previously been reported (see, e.g., A265V, 602235.0015), but functional studies were not performed. </p>
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<strong>REFERENCES</strong>
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Borgatti, R., Zucca, C., Cavallini, A., Ferrario, M., Panzeri, C., Castaldo, P., Soldovieri, M. V., Baschirotto, C., Bresolin, N., Dalla Bernardina, B., Taglialatela, M., Bassi, M. T.
<strong>A novel mutation in KCNQ2 associated with BFNC, drug resistant epilepsy, and mental retardation.</strong>
Neurology 63: 57-65, 2004.
[PubMed: 15249611]
[Full Text: https://doi.org/10.1212/01.wnl.0000132979.08394.6d]
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Dedek, K., Fusco, L., Teloy, N., Steinlein, O. K.
<strong>Neonatal convulsions and epileptic encephalopathy in an Italian family with a missense mutation in the fifth transmembrane region of KCNQ2.</strong>
Epilepsy Res. 54: 21-27, 2003.
[PubMed: 12742592]
[Full Text: https://doi.org/10.1016/s0920-1211(03)00037-8]
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Kato, M., Yamagata, T., Kubota, M., Arai, H., Yamashita, S., Nakagawa, T., Fujii, T., Sugai, K., Imai, K., Uster, T., Chitayat, D., Weiss, S., and 15 others.
<strong>Clinical spectrum of early onset epileptic encephalopathies caused by KCNQ2 mutation.</strong>
Epilepsia 54: 1282-1287, 2013.
[PubMed: 23621294]
[Full Text: https://doi.org/10.1111/epi.12200]
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Saitsu, H., Kato, M., Koide, A., Goto, T., Fujita, T., Nishiyama, K., Tsurusaki, Y., Doi, H., Miyake, N., Hayasaka, K., Matsumoto, N.
<strong>Whole exome sequencing identifies KCNQ2 mutations in Ohtahara syndrome.</strong>
Ann. Neurol. 72: 298-300, 2012.
[PubMed: 22926866]
[Full Text: https://doi.org/10.1002/ana.23620]
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Weckhuysen, S., Mandelstam, S., Suls, A., Audenaert, D., Deconinck, T., Claes, L. R. F., Deprez, L., Smets, K., Hristova, D., Yordanova, I., Jordanova, A., Ceulemans, B., and 11 others.
<strong>KCNQ2 encephalopathy: emerging phenotype of a neonatal epileptic encephalopathy.</strong>
Ann. Neurol. 71: 15-25, 2012.
[PubMed: 22275249]
[Full Text: https://doi.org/10.1002/ana.22644]
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Cassandra L. Kniffin - updated : 3/6/2014<br>Cassandra L. Kniffin - updated : 10/18/2012
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Creation Date:
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Cassandra L. Kniffin : 2/3/2011
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carol : 10/13/2020<br>ckniffin : 10/13/2020<br>carol : 10/06/2020<br>carol : 06/05/2018<br>carol : 04/20/2018<br>alopez : 03/18/2014<br>mcolton : 3/10/2014<br>ckniffin : 3/6/2014<br>carol : 1/8/2013<br>carol : 11/6/2012<br>ckniffin : 10/18/2012<br>terry : 3/3/2011<br>carol : 2/10/2011<br>ckniffin : 2/10/2011
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