nih-gov/www.ncbi.nlm.nih.gov/omim/617350

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<title>
Entry
- #617350 - DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 52; DEE52
- OMIM
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<span class="h4">#617350</span>
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<strong>Table of Contents</strong>
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<li role="presentation">
<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/617350"><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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<li role="presentation" style="margin-left: 1em">
<a href="#animalModel">Animal Model</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 style="display: table-cell;">Clinical Resources</div>
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<div><a href="https://clinicaltrials.gov/search?cond=(DEVELOPMENTAL EPILEPTIC ENCEPHALOPATHY) OR (SCN1B)" class="mim-tip-hint" title="Clinical Trials" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Clinical Trials', 'domain': 'clinicaltrials.gov'})">Clinical Trials</a></div>
<div><a href="https://www.orpha.net/consor/cgi-bin/ClinicalLabs_Search_Simple.php?lng=EN&LnkId=889&Typ=Pat" class="mim-tip-hint" title="A list of European laboratories that offer genetic testing." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'EuroGentest', 'domain': 'orpha.net'})">EuroGentest</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/gtr/all/tests/?term=617350[mim]" class="mim-tip-hint" title="Genetic Testing Registry." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GTR', 'domain': 'ncbi.nlm.nih.gov'})">GTR</a></div>
<div><a href="https://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&Expert=1934" class="mim-tip-hint" title="European reference portal for information on rare diseases and orphan drugs." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'OrphaNet', 'domain': 'orpha.net'})">OrphaNet</a></div>
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<div style="display: table-cell;">Animal Models</div>
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<div class="panel-body small mim-panel-body">
<div><a href="https://www.alliancegenome.org/disease/DOID:0080455" class="mim-tip-hint" title="Search Across Species; explore model organism and human comparative genomics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Alliance Genome', 'domain': 'alliancegenome.org'})">Alliance Genome</a></div>
<div><a href="http://www.informatics.jax.org/disease/617350" class="mim-tip-hint" title="Phenotypes, alleles, and disease models from Mouse Genome Informatics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MGI Mouse Phenotype', 'domain': 'informatics.jax.org'})">MGI Mouse Phenotype</a></div>
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<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.">
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<div>
<a id="title" class="mim-anchor"></a>
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<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> 1934<br />
<strong>DO:</strong> 0080455<br />
">ICD+</a>
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<span class="h3">
<span class="mim-font mim-tip-hint" title="Phenotype description, molecular basis known">
<span class="text-danger"><strong>#</strong></span>
617350
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<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 52; DEE52
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<a id="alternativeTitles" class="mim-anchor"></a>
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<em>Alternative titles; symbols</em>
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<h4>
<span class="mim-font">
EPILEPTIC ENCEPHALOPATHY, EARLY INFANTILE, 52; EIEE52
</span>
</h4>
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<br />
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<a id="phenotypeMap" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>Phenotype-Gene Relationships</strong>
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<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
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<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/19/567?start=-3&limit=10&highlight=567">
19q13.11
</a>
</span>
</td>
<td>
<span class="mim-font">
Developmental and epileptic encephalopathy 52
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617350"> 617350 </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">
SCN1B
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600235"> 600235 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
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<a href="/clinicalSynopsis/617350" class="btn btn-warning" role="button"> Clinical Synopsis </a>
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<a href="/phenotypicSeries/PS308350" class="btn btn-info" role="button"> Phenotypic Series </a>
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PheneGene Graphics <span class="caret"></span>
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<ul class="dropdown-menu" style="width: 17em;">
<li><a href="/graph/linear/617350" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/617350" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
</ul>
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<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>
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<p />
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<div id="mimClinicalSynopsisFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small" style="margin: 5px">
<div>
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<span class="h5 mim-font">
<strong> INHERITANCE </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Autosomal recessive <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/258211005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">258211005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0441748&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0441748</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> HEAD & NECK </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Head </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Microcephaly (in some patients) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1148757008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1148757008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q02" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q02</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/742.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">742.1</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4551563&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4551563</a>, <a href="https://bioportal.bioontology.org/search?q=C0025958&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0025958</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000252" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000252</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000252" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000252</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=0584d323b99dcd7001cc50e224947aca" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Microcephaly-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=0584d323b99dcd7001cc50e224947aca&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Face </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Myopathic facies <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/26432009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">26432009</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0332615&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0332615</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002058" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002058</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002058" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002058</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> NEUROLOGIC </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Central Nervous System </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- 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, multiple types <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4015120&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4015120</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/91175000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">91175000</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001250" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001250</a>]</span><br /> -
Myoclonic seizures <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1208991001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1208991001</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4317123&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4317123</a>, <a href="https://bioportal.bioontology.org/search?q=C0014550&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0014550</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0032794" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0032794</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0032794" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0032794</a>]</span><br /> -
Febrile seizures <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/41497008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">41497008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R56.00" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R56.00</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/R56.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R56.0</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/780.31" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">780.31</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0009952&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0009952</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002373" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002373</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002373" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002373</a>]</span><br /> -
Hemiclonic seizures <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1846620&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1846620</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0006813" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0006813</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0006813" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0006813</a>]</span><br /> -
Atypical absence seizures <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/23374007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">23374007</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0595948&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0595948</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007270" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007270</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007270" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007270</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 /> -
Developmental stagnation and regression after seizure onset <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4479237&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4479237</a>]</span><br /> -
Axial hypotonia <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1853743&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1853743</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0008936" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008936</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0008936" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008936</a>]</span><br /> -
Pyramidal signs <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/14648003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">14648003</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0234132&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0234132</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007256" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007256</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007256" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007256</a>]</span><br /> -
Tetrapyramidal syndrome <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4479238&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4479238</a>]</span><br /> -
Spasticity <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/221360009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">221360009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/397790002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">397790002</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0026838&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0026838</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001257" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001257</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001257" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001257</a>]</span><br /> -
Limb ataxia <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0750937&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0750937</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002070" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002070</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002070" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002070</a>]</span><br /> -
Rolandic discharges seen on EEG <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4479239&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4479239</a>]</span><br /> -
Multifocal spike waves seen on EEG <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4479240&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4479240</a>]</span><br /> -
Slow waves seen on EEG <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5436378&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5436378</a>]</span><br /> -
Nonspecific atrophy seen on brain imaging <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5436379&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5436379</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 of seizures in the first months of life<br /> -
Seizures are refractory to treatment<br /> -
Death in childhood (in some patients) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1843392&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1843392</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003819" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003819</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003819" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003819</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 sodium channel, type I, beta subunit gene (SCN1B, <a href="/entry/600235#0008">600235.0008</a>)<br />
</span>
</div>
</div>
</div>
<div class="text-right">
<a href="#mimClinicalSynopsisFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
</div>
</div>
</div>
<div id="mimPhenotypicSeriesFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small">
<div class="row">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<h5>
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/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/9/537?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/9/548?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>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Somatic mosaicism">SMo</abbr>, <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/300896"> 300896 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/314375"> SLC35A2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/314375"> 314375 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/325?start=-3&limit=10&highlight=325"> Xp11.22 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/301044"> Developmental and epileptic encephalopathy 85, with or without midline brain defects </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/301044"> 301044 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300040"> SMC1A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300040"> 300040 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/363?start=-3&limit=10&highlight=363"> Xq11.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300607"> Developmental and epileptic encephalopathy 8 </a>
</span>
</td>
<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>
</td>
<td>
<span class="mim-font">
<a href="/entry/300607"> 300607 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300429"> ARHGEF9 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300429"> 300429 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/487?start=-3&limit=10&highlight=487"> Xq22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300088"> Developmental and epileptic encephalopathy 9 </a>
</span>
</td>
<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>
</td>
<td>
<span class="mim-font">
<a href="/entry/300088"> 300088 </a>
</span>
</td>
<td>
<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>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/576?start=-3&limit=10&highlight=576"> Xq23 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300884"> Developmental and epileptic encephalopathy 36 </a>
</span>
</td>
<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>
</td>
<td>
<span class="mim-font">
<a href="/entry/300884"> 300884 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300776"> ALG13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300776"> 300776 </a>
</span>
</td>
</tr>
<tr>
<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>
</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/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>
</div>
<div class="text-right small">
<a href="#mimPhenotypicSeriesFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
</div>
</div>
</div>
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<div>
<br />
</div>
<div>
<a id="text" class="mim-anchor"></a>
<h4 href="#mimTextFold" id="mimTextToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimTextToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<span class="mim-tip-floating" qtip_title="<strong>Looking For More References?</strong>" qtip_text="Click the 'reference plus' icon &lt;span class='glyphicon glyphicon-plus-sign'&gt;&lt;/span&gt at the end of each OMIM text paragraph to see more references related to the content of the preceding paragraph.">
<strong>TEXT</strong>
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</h4>
<div id="mimTextFold" class="collapse in ">
<span class="mim-text-font">
<p>A number sign (#) is used with this entry because of evidence that developmental and epileptic encephalopathy-52 (DEE52) is caused by homozygous mutation in the SCN1B gene (<a href="/entry/600235">600235</a>) on chromosome 19q13.</p>
</span>
<div>
<br />
</div>
</div>
<div>
<a id="description" class="mim-anchor"></a>
<h4 href="#mimDescriptionFold" id="mimDescriptionToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimDescriptionToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Description</strong>
</span>
</h4>
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<div id="mimDescriptionFold" class="collapse in ">
<span class="mim-text-font">
<p>Developmental and epileptic encephalopathy-52 (DEE52) is a severe autosomal recessive seizure disorder characterized by infantile onset of refractory seizures with resultant delayed global neurologic development. Affected individuals have impaired intellectual development and may have other persistent neurologic abnormalities, including axial hypotonia and spasticity; death in childhood may occur (summary by <a href="#4" class="mim-tip-reference" title="Patino, G. A., Claes, L. R. F., Lopez-Santiago, L. F., Slat, E. A., Dondeti, R. S. R., Chen, C., O&#x27;Malley, H. A., Gray, C. B. B., Miyazaki, H., Nukina, N., Oyama, F., De Jonghe, P., Isom, L. L. &lt;strong&gt;A functional null mutation of SCN1B in a patient with Dravet syndrome.&lt;/strong&gt; J. Neurosci. 29: 10764-10778, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19710327/&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;19710327&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=19710327[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1523/JNEUROSCI.2475-09.2009&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="19710327">Patino et al., 2009</a> and <a href="#5" class="mim-tip-reference" title="Ramadan, W., Patel, N., Anazi, S., Kentab, A. Y., Bashiri, F. A., Hamad, M. H., Jad, L., Salih, M. A., Alsaif, H., Hashem, M., Faqeih, E., Shamseddin, H. E., Alkuraya, F. S. &lt;strong&gt;Confirming the recessive inheritance of SCN1B mutations in developmental epileptic encephalopathy.&lt;/strong&gt; Clin. Genet. 92: 327-331, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28218389/&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;28218389&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/cge.12999&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="28218389">Ramadan et al., 2017</a>). Some patients with DEE52 may have a clinical diagnosis of Dravet syndrome (<a href="/entry/607208">607208</a>), which is characterized by the onset of seizures in the first year or 2 of life after normal early development. Developmental delay, impaired intellectual development, and behavioral abnormalities usually become apparent later between 1 and 4 years of age. Dravet syndrome may also include 'severe myoclonic epilepsy in infancy' (SMEI) (summary by <a href="#4" class="mim-tip-reference" title="Patino, G. A., Claes, L. R. F., Lopez-Santiago, L. F., Slat, E. A., Dondeti, R. S. R., Chen, C., O&#x27;Malley, H. A., Gray, C. B. B., Miyazaki, H., Nukina, N., Oyama, F., De Jonghe, P., Isom, L. L. &lt;strong&gt;A functional null mutation of SCN1B in a patient with Dravet syndrome.&lt;/strong&gt; J. Neurosci. 29: 10764-10778, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19710327/&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;19710327&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=19710327[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1523/JNEUROSCI.2475-09.2009&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="19710327">Patino et al., 2009</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=19710327+28218389" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>For a discussion of genetic heterogeneity of DEE, see <a href="/entry/308350">308350</a>.</p>
</span>
<div>
<br />
</div>
</div>
<div>
<a id="clinicalFeatures" class="mim-anchor"></a>
<h4 href="#mimClinicalFeaturesFold" id="mimClinicalFeaturesToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimClinicalFeaturesToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Clinical Features</strong>
</span>
</h4>
</div>
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<p><a href="#4" class="mim-tip-reference" title="Patino, G. A., Claes, L. R. F., Lopez-Santiago, L. F., Slat, E. A., Dondeti, R. S. R., Chen, C., O&#x27;Malley, H. A., Gray, C. B. B., Miyazaki, H., Nukina, N., Oyama, F., De Jonghe, P., Isom, L. L. &lt;strong&gt;A functional null mutation of SCN1B in a patient with Dravet syndrome.&lt;/strong&gt; J. Neurosci. 29: 10764-10778, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19710327/&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;19710327&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=19710327[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1523/JNEUROSCI.2475-09.2009&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="19710327">Patino et al. (2009)</a> reported a dizygotic twin boy, born of consanguineous Moroccan parents, with a clinical diagnosis of Dravet syndrome. At age 3 months, the patient developed generalized tonic-clonic seizures after vaccination. He subsequently had multiple recurrent seizures, including febrile seizures and myoclonic seizures, associated with rolandic discharges on EEG. The seizures were refractory to treatment, and he showed deterioration of psychomotor abilities, global hypotonia, and a tetrapyramidal syndrome. He died around age 14 months from aspiration pneumonia. His twin brother was unaffected. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19710327" 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="Ogiwara, I., Nakayama, T., Yamagata, T., Ohtani, H., Mazaki, E., Tsuchiya, S., Inoue, Y., Yamakawa, K. &lt;strong&gt;A homozygous mutation of voltage-gated sodium channel beta-1 gene SCN1B in a patient with Dravet syndrome.&lt;/strong&gt; Epilepsia 53: e200-e203, 2012. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23148524/&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;23148524&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/epi.12040&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="23148524">Ogiwara et al. (2012)</a> reported a 24-year-old Japanese man, born of unrelated parents, with onset of hemiclonic and myoclonic seizures at age 6 months. He subsequently developed fever-provoked myoclonic seizures and generalized tonic-clonic seizures, often associated with status epilepticus. Other seizure types included atypical absence, myoclonic atonic, and focal dyscognitive seizures with cyanosis. These became less frequent and disappeared when he was 4 years of age, but refractory generalized tonic-clonic seizures persisted. The patient showed developmental stagnation and global developmental delay after onset of seizures, as well as ataxia of the limbs and mild pyramidal signs, consistent with a clinical diagnosis of Dravet syndrome. EEG initially showed multifocal spike and slow waves, and later showed infrequent polyspikes, spikes, and slow waves. Brain imaging showed mild nonspecific atrophy with enlargement of the lateral ventricles. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23148524" 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="Ramadan, W., Patel, N., Anazi, S., Kentab, A. Y., Bashiri, F. A., Hamad, M. H., Jad, L., Salih, M. A., Alsaif, H., Hashem, M., Faqeih, E., Shamseddin, H. E., Alkuraya, F. S. &lt;strong&gt;Confirming the recessive inheritance of SCN1B mutations in developmental epileptic encephalopathy.&lt;/strong&gt; Clin. Genet. 92: 327-331, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28218389/&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;28218389&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/cge.12999&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="28218389">Ramadan et al. (2017)</a> described 5 children with DEE52 from 3 unrelated consanguineous Saudi families. The proband in family 1 presented at age 8 months with status epileptics and an EEG consistent with focal secondary generalized epilepsy with bursts of high voltage spikes lasting up to 5 minutes without clinical manifestation. Brain MRI showed nonspecific atrophy. Her epilepsy was resistant to treatment and she died at age 9 years. A brother presented at age 2 months with treatment-resistant tonic-clonic and absence seizures, episodic abnormal eye movements, and recurrent singultus; he died at age 9 months. The proband in family 2 was a 10-year-old girl with epilepsy, profound psychomotor delay, microcephaly, generalized wasting, severe kyphoscoliosis, central hypotonia, and spastic quadriplegia. Her seizures began at age 2 months and were poorly controlled. Brain MRI at age 6 years showed multiple small infarcts with surrounding gliosis in the centrum semiovale, periventricular leukomalacia, mild ventricular dilatation, and mild dysplasia of the corpus callosum. A sister had a similar phenotype. Brain MRI showed diffuse atrophy, and an EEG showed slow posterior dominant rhythm with frequent bursts of spike and wave discharges. She died at age 8 years. The proband in family 3 developed multifocal, intractable epilepsy with myoclonus and tonic-clonic seizures at 20 days of age. He had severe developmental delay and 4-limb spasticity. Brain MRI showed mildly prominent lateral ventricles and extraaxial CSF space at the frontotemporal region suggestive of mild atrophy. EEG showed a slow background with frequent multifocal spikes consistent with epileptic encephalopathy. He died at age 3.5 years of bleeding from an esophageal varix. He had 2 sibs who died at ages 6 and 13 years with a similar phenotype. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28218389" 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 DEE52 in the family reported by <a href="#4" class="mim-tip-reference" title="Patino, G. A., Claes, L. R. F., Lopez-Santiago, L. F., Slat, E. A., Dondeti, R. S. R., Chen, C., O&#x27;Malley, H. A., Gray, C. B. B., Miyazaki, H., Nukina, N., Oyama, F., De Jonghe, P., Isom, L. L. &lt;strong&gt;A functional null mutation of SCN1B in a patient with Dravet syndrome.&lt;/strong&gt; J. Neurosci. 29: 10764-10778, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19710327/&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;19710327&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=19710327[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1523/JNEUROSCI.2475-09.2009&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="19710327">Patino et al. (2009)</a> was consistent with autosomal recessive inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19710327" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="molecularGenetics" class="mim-anchor"></a>
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<strong>Molecular Genetics</strong>
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<p>In a boy, born of consanguineous Moroccan parents, with DEE52, <a href="#4" class="mim-tip-reference" title="Patino, G. A., Claes, L. R. F., Lopez-Santiago, L. F., Slat, E. A., Dondeti, R. S. R., Chen, C., O&#x27;Malley, H. A., Gray, C. B. B., Miyazaki, H., Nukina, N., Oyama, F., De Jonghe, P., Isom, L. L. &lt;strong&gt;A functional null mutation of SCN1B in a patient with Dravet syndrome.&lt;/strong&gt; J. Neurosci. 29: 10764-10778, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19710327/&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;19710327&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=19710327[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1523/JNEUROSCI.2475-09.2009&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="19710327">Patino et al. (2009)</a> identified a homozygous missense mutation in the SCN1B gene (R125C; <a href="/entry/600235#0008">600235.0008</a>). In vitro functional cellular expression studies showed that the mutant protein was poorly expressed at the cell surface, despite robust intracellular expression, consistent with a trafficking defect to the membrane. Studies in Xenopus oocytes showed that the mutant protein was functional if it could be expressed at the cell surface. The inefficient trafficking of the mutant protein to the cell membrane at physiologic temperatures resulted in a functionally null SCN1B phenotype. The parents, who were heterozygous for the mutation, did not have seizures, suggesting that 1 functional SCN1B allele is sufficient for normal control of electrical excitability. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19710327" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In a 25-year-old Japanese man, born of unrelated parents, with DEE52, <a href="#3" class="mim-tip-reference" title="Ogiwara, I., Nakayama, T., Yamagata, T., Ohtani, H., Mazaki, E., Tsuchiya, S., Inoue, Y., Yamakawa, K. &lt;strong&gt;A homozygous mutation of voltage-gated sodium channel beta-1 gene SCN1B in a patient with Dravet syndrome.&lt;/strong&gt; Epilepsia 53: e200-e203, 2012. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23148524/&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;23148524&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/epi.12040&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="23148524">Ogiwara et al. (2012)</a> identified a homozygous missense mutation in the SCN1B gene (I106F; <a href="/entry/600235#0009">600235.0009</a>). Functional studies of the variant and studies of patient cells were not performed. However, <a href="#3" class="mim-tip-reference" title="Ogiwara, I., Nakayama, T., Yamagata, T., Ohtani, H., Mazaki, E., Tsuchiya, S., Inoue, Y., Yamakawa, K. &lt;strong&gt;A homozygous mutation of voltage-gated sodium channel beta-1 gene SCN1B in a patient with Dravet syndrome.&lt;/strong&gt; Epilepsia 53: e200-e203, 2012. Note: Electronic Article.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23148524/&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;23148524&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/epi.12040&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="23148524">Ogiwara et al. (2012)</a> noted that the domain of the protein affected by the mutation mediates interaction with cellular adhesion molecules. The patient was part of a cohort of 67 individuals with early-onset seizures without mutations in the SCN1A (<a href="/entry/182389">182389</a>) or SCN2A (<a href="/entry/182390">182390</a>) genes who underwent mutation analysis of the SCN1B gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23148524" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#2" class="mim-tip-reference" title="Kim, Y. O., Dibbens, L., Marini, C., Suis, A., Chemaly, N., Mei, D., McMahon, J. M., Iona, X., Berkovic, S. F., De Jonghe, P., Guerrini, R., Nabbout, R., Scheffer, I. E. &lt;strong&gt;Do mutations in SCN1B cause Dravet syndrome?&lt;/strong&gt; Epilepsy Res. 103: 97-100, 2013.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/23182416/&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;23182416&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.eplepsyres.2012.10.009&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="23182416">Kim et al. (2013)</a> did not find any pathogenic mutations in the SCN1B gene among 54 patients with early-infantile epileptic encephalopathy in whom SCN1A mutations had been excluded, suggesting that SCN1B mutations are not a common cause of that phenotype. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23182416" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In affected members of 3 unrelated Saudi families with DEE52, <a href="#5" class="mim-tip-reference" title="Ramadan, W., Patel, N., Anazi, S., Kentab, A. Y., Bashiri, F. A., Hamad, M. H., Jad, L., Salih, M. A., Alsaif, H., Hashem, M., Faqeih, E., Shamseddin, H. E., Alkuraya, F. S. &lt;strong&gt;Confirming the recessive inheritance of SCN1B mutations in developmental epileptic encephalopathy.&lt;/strong&gt; Clin. Genet. 92: 327-331, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28218389/&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;28218389&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/cge.12999&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="28218389">Ramadan et al. (2017)</a> identified homozygous mutations in the SCN1B gene: the same splicing mutation (<a href="/entry/600235#0010">600235.0010</a>) in 2 families, and a missense mutation (Y119D; <a href="/entry/600235#0011">600235.0011</a>) in the third family. The mutations, which were found by sequencing of a multigene epilepsy panel and confirmed by Sanger sequencing, segregated with the disorder in the families and were not found in the ExAC database. No functional studies were performed. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28218389" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><a href="#1" class="mim-tip-reference" title="Chen, C., Westenbroek, R. E., Xu, X., Edwards, C. A., Sorenson, D. R., Chen, Y., McEwen, D. P., O&#x27;Malley, H. A., Bharucha, V., Meadows, L. S., Knudsen, G. A., Vilaythong, A., Noebels, J. L., Saunders, T. L., Scheuer, T., Shrager, P., Catterall, W. A., Isom, L. L. &lt;strong&gt;Mice lacking sodium channel beta-1 subunits display defects in neuronal excitability, sodium channel expression, and nodal architecture.&lt;/strong&gt; J. Neurosci. 24: 4030-4042, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15102918/&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;15102918&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1523/JNEUROSCI.4139-03.2004&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="15102918">Chen et al. (2004)</a> produced beta-1-null mice by gene targeting. Knockout mice exhibited ataxic gait, spontaneous seizures, growth retardation, and death around postnatal day 20. They showed slowing of action potential conduction, reduced number of mature nodes of Ranvier, alterations in nodal architecture, loss of sodium channel-contactin (see CNTN1, <a href="/entry/600016">600016</a>) interactions, and abnormalities in the expression of Nav1.1 (SCN1A; <a href="/entry/182389">182389</a>) and Nav1.3 (SCN3A; <a href="/entry/182391">182391</a>) in pyramidal neurons CA2/CA3. Mutant mice had impacted esophagi, possibly attributable to enteric nervous system impairment. <a href="#1" class="mim-tip-reference" title="Chen, C., Westenbroek, R. E., Xu, X., Edwards, C. A., Sorenson, D. R., Chen, Y., McEwen, D. P., O&#x27;Malley, H. A., Bharucha, V., Meadows, L. S., Knudsen, G. A., Vilaythong, A., Noebels, J. L., Saunders, T. L., Scheuer, T., Shrager, P., Catterall, W. A., Isom, L. L. &lt;strong&gt;Mice lacking sodium channel beta-1 subunits display defects in neuronal excitability, sodium channel expression, and nodal architecture.&lt;/strong&gt; J. Neurosci. 24: 4030-4042, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15102918/&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;15102918&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1523/JNEUROSCI.4139-03.2004&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="15102918">Chen et al. (2004)</a> concluded that beta-1 regulates sodium channel density and localization, is involved in axo-glial communication at nodes of Ranvier, and is required for normal action potential conduction and control of excitability in vivo. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15102918" 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="Patino, G. A., Claes, L. R. F., Lopez-Santiago, L. F., Slat, E. A., Dondeti, R. S. R., Chen, C., O&#x27;Malley, H. A., Gray, C. B. B., Miyazaki, H., Nukina, N., Oyama, F., De Jonghe, P., Isom, L. L. &lt;strong&gt;A functional null mutation of SCN1B in a patient with Dravet syndrome.&lt;/strong&gt; J. Neurosci. 29: 10764-10778, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19710327/&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;19710327&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=19710327[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1523/JNEUROSCI.2475-09.2009&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="19710327">Patino et al. (2009)</a> found that heterozygous Scn1b +/- mice did not have increased susceptibility to seizures. Electrophysiologic studies of hippocampal slices from Scn1b-null mice showed increased peak voltage of action potentials and amplitude of action potentials in CA3 neurons, consistent with neuronal hyperexcitability, but not in CA1 neurons. Changes in sodium current density were not observed in dissociated CA3 bipolar neurons. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19710327" 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="Chen2004" class="mim-anchor"></a>
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Chen, C., Westenbroek, R. E., Xu, X., Edwards, C. A., Sorenson, D. R., Chen, Y., McEwen, D. P., O'Malley, H. A., Bharucha, V., Meadows, L. S., Knudsen, G. A., Vilaythong, A., Noebels, J. L., Saunders, T. L., Scheuer, T., Shrager, P., Catterall, W. A., Isom, L. L.
<strong>Mice lacking sodium channel beta-1 subunits display defects in neuronal excitability, sodium channel expression, and nodal architecture.</strong>
J. Neurosci. 24: 4030-4042, 2004.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/15102918/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">15102918</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15102918" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1523/JNEUROSCI.4139-03.2004" target="_blank">Full Text</a>]
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<a id="Kim2013" class="mim-anchor"></a>
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Kim, Y. O., Dibbens, L., Marini, C., Suis, A., Chemaly, N., Mei, D., McMahon, J. M., Iona, X., Berkovic, S. F., De Jonghe, P., Guerrini, R., Nabbout, R., Scheffer, I. E.
<strong>Do mutations in SCN1B cause Dravet syndrome?</strong>
Epilepsy Res. 103: 97-100, 2013.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/23182416/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">23182416</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23182416" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/j.eplepsyres.2012.10.009" target="_blank">Full Text</a>]
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<a id="Ogiwara2012" class="mim-anchor"></a>
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Ogiwara, I., Nakayama, T., Yamagata, T., Ohtani, H., Mazaki, E., Tsuchiya, S., Inoue, Y., Yamakawa, K.
<strong>A homozygous mutation of voltage-gated sodium channel beta-1 gene SCN1B in a patient with Dravet syndrome.</strong>
Epilepsia 53: e200-e203, 2012. Note: Electronic Article.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/23148524/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">23148524</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=23148524" 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.12040" target="_blank">Full Text</a>]
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<a id="Patino2009" class="mim-anchor"></a>
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Patino, G. A., Claes, L. R. F., Lopez-Santiago, L. F., Slat, E. A., Dondeti, R. S. R., Chen, C., O'Malley, H. A., Gray, C. B. B., Miyazaki, H., Nukina, N., Oyama, F., De Jonghe, P., Isom, L. L.
<strong>A functional null mutation of SCN1B in a patient with Dravet syndrome.</strong>
J. Neurosci. 29: 10764-10778, 2009.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/19710327/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">19710327</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=19710327[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19710327" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1523/JNEUROSCI.2475-09.2009" target="_blank">Full Text</a>]
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<a id="Ramadan2017" class="mim-anchor"></a>
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Ramadan, W., Patel, N., Anazi, S., Kentab, A. Y., Bashiri, F. A., Hamad, M. H., Jad, L., Salih, M. A., Alsaif, H., Hashem, M., Faqeih, E., Shamseddin, H. E., Alkuraya, F. S.
<strong>Confirming the recessive inheritance of SCN1B mutations in developmental epileptic encephalopathy.</strong>
Clin. Genet. 92: 327-331, 2017.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/28218389/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">28218389</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28218389" 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/cge.12999" target="_blank">Full Text</a>]
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Contributors:
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Karen R. Hanson - updated : 11/25/2019
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Cassandra L. Kniffin : 02/16/2017
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alopez : 11/11/2020
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carol : 10/08/2020<br>ckniffin : 10/01/2020<br>carol : 11/26/2019<br>carol : 11/25/2019<br>carol : 02/20/2017<br>carol : 02/17/2017<br>ckniffin : 02/16/2017
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<strong>#</strong> 617350
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DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 52; DEE52
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<em>Alternative titles; symbols</em>
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EPILEPTIC ENCEPHALOPATHY, EARLY INFANTILE, 52; EIEE52
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<strong>ORPHA:</strong> 1934; &nbsp;
<strong>DO:</strong> 0080455; &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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19q13.11
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Developmental and epileptic encephalopathy 52
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617350
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Autosomal recessive
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3
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SCN1B
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600235
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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-52 (DEE52) is caused by homozygous mutation in the SCN1B gene (600235) on chromosome 19q13.</p>
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<strong>Description</strong>
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<p>Developmental and epileptic encephalopathy-52 (DEE52) is a severe autosomal recessive seizure disorder characterized by infantile onset of refractory seizures with resultant delayed global neurologic development. Affected individuals have impaired intellectual development and may have other persistent neurologic abnormalities, including axial hypotonia and spasticity; death in childhood may occur (summary by Patino et al., 2009 and Ramadan et al., 2017). Some patients with DEE52 may have a clinical diagnosis of Dravet syndrome (607208), which is characterized by the onset of seizures in the first year or 2 of life after normal early development. Developmental delay, impaired intellectual development, and behavioral abnormalities usually become apparent later between 1 and 4 years of age. Dravet syndrome may also include 'severe myoclonic epilepsy in infancy' (SMEI) (summary by Patino et al., 2009). </p><p>For a discussion of genetic heterogeneity of DEE, see 308350.</p>
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<strong>Clinical Features</strong>
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<p>Patino et al. (2009) reported a dizygotic twin boy, born of consanguineous Moroccan parents, with a clinical diagnosis of Dravet syndrome. At age 3 months, the patient developed generalized tonic-clonic seizures after vaccination. He subsequently had multiple recurrent seizures, including febrile seizures and myoclonic seizures, associated with rolandic discharges on EEG. The seizures were refractory to treatment, and he showed deterioration of psychomotor abilities, global hypotonia, and a tetrapyramidal syndrome. He died around age 14 months from aspiration pneumonia. His twin brother was unaffected. </p><p>Ogiwara et al. (2012) reported a 24-year-old Japanese man, born of unrelated parents, with onset of hemiclonic and myoclonic seizures at age 6 months. He subsequently developed fever-provoked myoclonic seizures and generalized tonic-clonic seizures, often associated with status epilepticus. Other seizure types included atypical absence, myoclonic atonic, and focal dyscognitive seizures with cyanosis. These became less frequent and disappeared when he was 4 years of age, but refractory generalized tonic-clonic seizures persisted. The patient showed developmental stagnation and global developmental delay after onset of seizures, as well as ataxia of the limbs and mild pyramidal signs, consistent with a clinical diagnosis of Dravet syndrome. EEG initially showed multifocal spike and slow waves, and later showed infrequent polyspikes, spikes, and slow waves. Brain imaging showed mild nonspecific atrophy with enlargement of the lateral ventricles. </p><p>Ramadan et al. (2017) described 5 children with DEE52 from 3 unrelated consanguineous Saudi families. The proband in family 1 presented at age 8 months with status epileptics and an EEG consistent with focal secondary generalized epilepsy with bursts of high voltage spikes lasting up to 5 minutes without clinical manifestation. Brain MRI showed nonspecific atrophy. Her epilepsy was resistant to treatment and she died at age 9 years. A brother presented at age 2 months with treatment-resistant tonic-clonic and absence seizures, episodic abnormal eye movements, and recurrent singultus; he died at age 9 months. The proband in family 2 was a 10-year-old girl with epilepsy, profound psychomotor delay, microcephaly, generalized wasting, severe kyphoscoliosis, central hypotonia, and spastic quadriplegia. Her seizures began at age 2 months and were poorly controlled. Brain MRI at age 6 years showed multiple small infarcts with surrounding gliosis in the centrum semiovale, periventricular leukomalacia, mild ventricular dilatation, and mild dysplasia of the corpus callosum. A sister had a similar phenotype. Brain MRI showed diffuse atrophy, and an EEG showed slow posterior dominant rhythm with frequent bursts of spike and wave discharges. She died at age 8 years. The proband in family 3 developed multifocal, intractable epilepsy with myoclonus and tonic-clonic seizures at 20 days of age. He had severe developmental delay and 4-limb spasticity. Brain MRI showed mildly prominent lateral ventricles and extraaxial CSF space at the frontotemporal region suggestive of mild atrophy. EEG showed a slow background with frequent multifocal spikes consistent with epileptic encephalopathy. He died at age 3.5 years of bleeding from an esophageal varix. He had 2 sibs who died at ages 6 and 13 years with a similar phenotype. </p>
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<strong>Inheritance</strong>
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<p>The transmission pattern of DEE52 in the family reported by Patino et al. (2009) was consistent with autosomal recessive inheritance. </p>
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<strong>Molecular Genetics</strong>
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<p>In a boy, born of consanguineous Moroccan parents, with DEE52, Patino et al. (2009) identified a homozygous missense mutation in the SCN1B gene (R125C; 600235.0008). In vitro functional cellular expression studies showed that the mutant protein was poorly expressed at the cell surface, despite robust intracellular expression, consistent with a trafficking defect to the membrane. Studies in Xenopus oocytes showed that the mutant protein was functional if it could be expressed at the cell surface. The inefficient trafficking of the mutant protein to the cell membrane at physiologic temperatures resulted in a functionally null SCN1B phenotype. The parents, who were heterozygous for the mutation, did not have seizures, suggesting that 1 functional SCN1B allele is sufficient for normal control of electrical excitability. </p><p>In a 25-year-old Japanese man, born of unrelated parents, with DEE52, Ogiwara et al. (2012) identified a homozygous missense mutation in the SCN1B gene (I106F; 600235.0009). Functional studies of the variant and studies of patient cells were not performed. However, Ogiwara et al. (2012) noted that the domain of the protein affected by the mutation mediates interaction with cellular adhesion molecules. The patient was part of a cohort of 67 individuals with early-onset seizures without mutations in the SCN1A (182389) or SCN2A (182390) genes who underwent mutation analysis of the SCN1B gene. </p><p>Kim et al. (2013) did not find any pathogenic mutations in the SCN1B gene among 54 patients with early-infantile epileptic encephalopathy in whom SCN1A mutations had been excluded, suggesting that SCN1B mutations are not a common cause of that phenotype. </p><p>In affected members of 3 unrelated Saudi families with DEE52, Ramadan et al. (2017) identified homozygous mutations in the SCN1B gene: the same splicing mutation (600235.0010) in 2 families, and a missense mutation (Y119D; 600235.0011) in the third family. The mutations, which were found by sequencing of a multigene epilepsy panel and confirmed by Sanger sequencing, segregated with the disorder in the families and were not found in the ExAC database. No functional studies were performed. </p>
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<strong>Animal Model</strong>
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<p>Chen et al. (2004) produced beta-1-null mice by gene targeting. Knockout mice exhibited ataxic gait, spontaneous seizures, growth retardation, and death around postnatal day 20. They showed slowing of action potential conduction, reduced number of mature nodes of Ranvier, alterations in nodal architecture, loss of sodium channel-contactin (see CNTN1, 600016) interactions, and abnormalities in the expression of Nav1.1 (SCN1A; 182389) and Nav1.3 (SCN3A; 182391) in pyramidal neurons CA2/CA3. Mutant mice had impacted esophagi, possibly attributable to enteric nervous system impairment. Chen et al. (2004) concluded that beta-1 regulates sodium channel density and localization, is involved in axo-glial communication at nodes of Ranvier, and is required for normal action potential conduction and control of excitability in vivo. </p><p>Patino et al. (2009) found that heterozygous Scn1b +/- mice did not have increased susceptibility to seizures. Electrophysiologic studies of hippocampal slices from Scn1b-null mice showed increased peak voltage of action potentials and amplitude of action potentials in CA3 neurons, consistent with neuronal hyperexcitability, but not in CA1 neurons. Changes in sodium current density were not observed in dissociated CA3 bipolar neurons. </p>
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<strong>REFERENCES</strong>
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Chen, C., Westenbroek, R. E., Xu, X., Edwards, C. A., Sorenson, D. R., Chen, Y., McEwen, D. P., O'Malley, H. A., Bharucha, V., Meadows, L. S., Knudsen, G. A., Vilaythong, A., Noebels, J. L., Saunders, T. L., Scheuer, T., Shrager, P., Catterall, W. A., Isom, L. L.
<strong>Mice lacking sodium channel beta-1 subunits display defects in neuronal excitability, sodium channel expression, and nodal architecture.</strong>
J. Neurosci. 24: 4030-4042, 2004.
[PubMed: 15102918]
[Full Text: https://doi.org/10.1523/JNEUROSCI.4139-03.2004]
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<li>
<p class="mim-text-font">
Kim, Y. O., Dibbens, L., Marini, C., Suis, A., Chemaly, N., Mei, D., McMahon, J. M., Iona, X., Berkovic, S. F., De Jonghe, P., Guerrini, R., Nabbout, R., Scheffer, I. E.
<strong>Do mutations in SCN1B cause Dravet syndrome?</strong>
Epilepsy Res. 103: 97-100, 2013.
[PubMed: 23182416]
[Full Text: https://doi.org/10.1016/j.eplepsyres.2012.10.009]
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Ogiwara, I., Nakayama, T., Yamagata, T., Ohtani, H., Mazaki, E., Tsuchiya, S., Inoue, Y., Yamakawa, K.
<strong>A homozygous mutation of voltage-gated sodium channel beta-1 gene SCN1B in a patient with Dravet syndrome.</strong>
Epilepsia 53: e200-e203, 2012. Note: Electronic Article.
[PubMed: 23148524]
[Full Text: https://doi.org/10.1111/epi.12040]
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</li>
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<p class="mim-text-font">
Patino, G. A., Claes, L. R. F., Lopez-Santiago, L. F., Slat, E. A., Dondeti, R. S. R., Chen, C., O'Malley, H. A., Gray, C. B. B., Miyazaki, H., Nukina, N., Oyama, F., De Jonghe, P., Isom, L. L.
<strong>A functional null mutation of SCN1B in a patient with Dravet syndrome.</strong>
J. Neurosci. 29: 10764-10778, 2009.
[PubMed: 19710327]
[Full Text: https://doi.org/10.1523/JNEUROSCI.2475-09.2009]
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</li>
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Ramadan, W., Patel, N., Anazi, S., Kentab, A. Y., Bashiri, F. A., Hamad, M. H., Jad, L., Salih, M. A., Alsaif, H., Hashem, M., Faqeih, E., Shamseddin, H. E., Alkuraya, F. S.
<strong>Confirming the recessive inheritance of SCN1B mutations in developmental epileptic encephalopathy.</strong>
Clin. Genet. 92: 327-331, 2017.
[PubMed: 28218389]
[Full Text: https://doi.org/10.1111/cge.12999]
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