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Entry
- #604360 - SPASTIC PARAPLEGIA 11, AUTOSOMAL RECESSIVE; SPG11
- OMIM
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<span class="h4">#604360</span>
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<a href="#title"><strong>Title</strong></a>
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<a href="#phenotypeMap"><strong>Phenotype-Gene Relationships</strong></a>
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<a href="/clinicalSynopsis/604360"><strong>Clinical Synopsis</strong></a>
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<a href="/phenotypicSeries/PS303350"> <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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<a href="#clinicalFeatures">Clinical Features</a>
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<a href="#mapping">Mapping</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#inheritance">Inheritance</a>
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<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#populationGenetics">Population Genetics</a>
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<a href="#references"><strong>References</strong></a>
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<div><a href="https://clinicaltrials.gov/search?cond=SPASTIC PARAPLEGIA 11, AUTOSOMAL RECESSIVE" class="mim-tip-hint" title="A registry of federally and privately supported clinical trials conducted in the United States and around the world." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Clinical Trials', 'domain': 'clinicaltrials.gov'})">Clinical Trials</a></div>
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<div id="mimAnimalModelsLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.alliancegenome.org/disease/DOID:0110764" 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/604360" class="mim-tip-hint" title="Phenotypes, alleles, and disease models from Mouse Genome Informatics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MGI Mouse Phenotype', 'domain': 'informatics.jax.org'})">MGI Mouse Phenotype</a></div>
</div>
</div>
</div>
</div>
</div>
</div>
<span>
<span class="mim-tip-bottom" qtip_title="<strong>Looking for this gene or this phenotype in other resources?</strong>" qtip_text="Select a related resource from the dropdown menu and click for a targeted link to information directly relevant.">
&nbsp;
</span>
</span>
</div>
<div class="col-lg-8 col-lg-pull-2 col-md-8 col-md-pull-2 col-sm-8 col-sm-pull-2 col-xs-12">
<div>
<a id="title" class="mim-anchor"></a>
<div>
<a id="number" class="mim-anchor"></a>
<div class="text-right">
<a href="#" class="mim-tip-icd" qtip_title="<strong>ICD+</strong>" qtip_text="
<strong>ORPHA:</strong> 2822<br />
<strong>DO:</strong> 0110764<br />
">ICD+</a>
</div>
<div>
<span class="h3">
<span class="mim-font mim-tip-hint" title="Phenotype description, molecular basis known">
<span class="text-danger"><strong>#</strong></span>
604360
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
SPASTIC PARAPLEGIA 11, AUTOSOMAL RECESSIVE; SPG11
</span>
</h3>
</div>
<div>
<br />
</div>
<div>
<a id="alternativeTitles" class="mim-anchor"></a>
<div>
<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
</span>
</p>
</div>
<div>
<h4>
<span class="mim-font">
SPASTIC PARAPLEGIA, AUTOSOMAL RECESSIVE, WITH MENTAL IMPAIRMENT AND THIN CORPUS CALLOSUM<br />
SPASTIC PARAPLEGIA, AUTOSOMAL RECESSIVE, COMPLICATED, WITH THIN CORPUS CALLOSUM<br />
HSP-TCC
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<a id="phenotypeMap" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>Phenotype-Gene Relationships</strong>
</span>
</h4>
<div>
<table class="table table-bordered table-condensed table-hover small mim-table-padding">
<thead>
<tr class="active">
<th>
Location
</th>
<th>
Phenotype
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
<th>
Gene/Locus
</th>
<th>
Gene/Locus <br /> MIM number
</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/168?start=-3&limit=10&highlight=168">
15q21.1
</a>
</span>
</td>
<td>
<span class="mim-font">
Spastic paraplegia 11, autosomal recessive
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604360"> 604360 </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">
SPG11
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610844"> 610844 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/604360" class="btn btn-warning" role="button"> Clinical Synopsis </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-warning dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimClinicalSynopsisFold" onclick="ga('send', 'event', 'Unfurl', 'ClinicalSynopsis', 'omim.org')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
</div>
&nbsp;
<div class="btn-group">
<a href="/phenotypicSeries/PS303350" class="btn btn-info" role="button"> Phenotypic Series </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-info dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimPhenotypicSeriesFold" onclick="ga('send', 'event', 'Unfurl', 'PhenotypicSeries', 'omim.org')">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
</div>
&nbsp;
<div class="btn-group">
<button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
PheneGene Graphics <span class="caret"></span>
</button>
<ul class="dropdown-menu" style="width: 17em;">
<li><a href="/graph/linear/604360" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/604360" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
</ul>
</div>
<span class="glyphicon glyphicon-question-sign mim-tip-hint" title="OMIM PheneGene graphics depict relationships between phenotypes, groups of related phenotypes (Phenotypic Series), and genes.<br /><a href='/static/omim/pdf/OMIM_Graphics.pdf' target='_blank'>A quick reference overview and guide (PDF)</a>"></span>
<div>
<p />
</div>
<div id="mimClinicalSynopsisFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small" style="margin: 5px">
<div>
<div>
<span class="h5 mim-font">
<strong> INHERITANCE </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Autosomal recessive <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/258211005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">258211005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0441748&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0441748</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> GROWTH </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Weight </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Obesity <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/414915002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">414915002</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/414916001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">414916001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/E66.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">E66.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/278.00" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">278.00</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0028754&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0028754</a>, <a href="https://bioportal.bioontology.org/search?q=C4759928&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4759928</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001513" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001513</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001513" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001513</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> HEAD & NECK </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Eyes </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Nystagmus, gaze-evoked <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1220537002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1220537002</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5574666&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5574666</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000640" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000640</a>]</span><br /> -
Pigmented macular degeneration, adult-onset <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2751769&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2751769</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/422338006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">422338006</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000608" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000608</a>]</span><br /> -
Retinal degeneration, adult-onset <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2751770&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2751770</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/95695004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">95695004</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000546" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000546</a>]</span><br /> -
Decreased visual acuity, adult-onset <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2751771&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2751771</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/13164000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">13164000</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007663" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007663</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> GENITOURINARY </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Bladder </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Urinary urgency <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/75088002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">75088002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R39.15" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R39.15</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/788.63" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">788.63</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0085606&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0085606</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000012" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000012</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000012" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000012</a>]</span><br /> -
Urinary incontinence <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/165232002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">165232002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R32" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R32</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/788.30" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">788.30</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/788.3" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">788.3</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0042024&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0042024</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000020" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000020</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000020" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000020</a>]</span><br /> -
Sphincter disturbances <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1843663&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1843663</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002839" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002839</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002839" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002839</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> SKELETAL </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Feet </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Pes cavus <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/205091006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">205091006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/36755004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">36755004</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/86900005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">86900005</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q66.7" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q66.7</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/736.73" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">736.73</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/754.71" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">754.71</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0728829&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0728829</a>, <a href="https://bioportal.bioontology.org/search?q=C0039273&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0039273</a>, <a href="https://bioportal.bioontology.org/search?q=C2239098&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2239098</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001761" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001761</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001761" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001761</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=2ad12e53b20f47e5685234fa29da6610" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Pes_Cavus-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=2ad12e53b20f47e5685234fa29da6610&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> MUSCLE, SOFT TISSUES </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Amyotrophy <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/88092000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">88092000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0541794&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0541794</a>, <a href="https://bioportal.bioontology.org/search?q=C0026846&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0026846</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003202" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003202</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003202" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003202</a>]</span><br /> -
Muscle atrophy, neurogenic <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/74035001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">74035001</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0270948&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0270948</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003202" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003202</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003202" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003202</a>]</span><br /> -
Atrophy of the thenar and hypothenar muscles <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2676687&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2676687</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> NEUROLOGIC </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Central Nervous System </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Lower limb spasticity <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/394679006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">394679006</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1271100&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1271100</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002061" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002061</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002061" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002061</a>]</span><br /> -
Lower limb weakness <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1836296&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1836296</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007340" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007340</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007340" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007340</a>]</span><br /> -
Walking on tiptoes <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/250018006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">250018006</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0427144&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0427144</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0030051" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0030051</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0030051" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0030051</a>]</span><br /> -
Stiffness while walking <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1858481&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1858481</a>]</span><br /> -
Spastic gait <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/9447003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">9447003</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R26.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R26.1</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0231687&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0231687</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002064" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002064</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002064" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002064</a>]</span><br /> -
Ataxia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/20262006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">20262006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/39384006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">39384006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/85102008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">85102008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R27.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R27.0</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/438.84" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">438.84</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0004134&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0004134</a>, <a href="https://bioportal.bioontology.org/search?q=C1135207&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1135207</a>, <a href="https://bioportal.bioontology.org/search?q=C0007758&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0007758</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001251" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001251</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0010867" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0010867</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001251" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001251</a>]</span><br /> -
Hyperreflexia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/86854008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">86854008</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0151889&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0151889</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001347" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001347</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001347" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001347</a>]</span><br /> -
Extensor plantar responses <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/246586009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">246586009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/366575004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">366575004</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0034935&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0034935</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003487" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003487</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003487" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003487</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 /> -
Knee and ankle clonus <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1858483&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1858483</a>]</span><br /> -
Degeneration of the lateral corticospinal tracts <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1846566&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1846566</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002314" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002314</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002314" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002314</a>]</span><br /> -
Dysarthria <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/8011004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">8011004</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/438.13" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">438.13</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/784.51" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">784.51</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0013362&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0013362</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001260" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001260</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001260" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001260</a>]</span><br /> -
Dysphagia <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/288939007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">288939007</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/40739000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">40739000</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R13.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R13.1</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/R13.10" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R13.10</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/787.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">787.2</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/787.20" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">787.20</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0011168&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0011168</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002015" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002015</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002015" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002015</a>]</span><br /> -
Learning disability (early in life) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1858484&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1858484</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/1855002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">1855002</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/408468001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">408468001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/F81.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">F81.9</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001328" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001328</a>]</span><br /> -
Severe cognitive deficits (develop later) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2676683&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2676683</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/386806002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">386806002</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/443265004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">443265004</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0100543" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0100543</a>]</span><br /> -
Mental retardation (develops later) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2676684&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2676684</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/228156007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">228156007</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/110359009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">110359009</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/317-319.99" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">317-319.99</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001249" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001249</a>]</span><br /> -
Thin corpus callosum <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5441562&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5441562</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0033725" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0033725</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0033725" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0033725</a>]</span><br /> -
Agenesis of the corpus callosum <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/5102002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">5102002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q04.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q04.0</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0175754&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0175754</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001274" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001274</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001274" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001274</a>]</span><br /> -
Cortical atrophy <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/278849000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">278849000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4551583&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4551583</a>, <a href="https://bioportal.bioontology.org/search?q=C0235946&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0235946</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002120" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002120</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0002059" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002059</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002120" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002120</a>]</span><br /> -
Periventricular white matter changes <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1853380&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1853380</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Peripheral Nervous System </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Peripheral motor and sensory neuropathy, distal <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2676685&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2676685</a>]</span><br /> -
Decreased vibratory sense in the lower limbs <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1849134&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1849134</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002166" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002166</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002166" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002166</a>]</span><br /> -
Nerve biopsy shows loss of myelinated fibers <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2676686&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2676686</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 usually in early adolescence<br /> -
Adult onset has been reported (age 50 years)<br /> -
Childhood onset has been reported<br /> -
Progressive disorder <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1864985&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1864985</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003676" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003676</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003676" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003676</a>]</span><br /> -
Loss of ambulation within 10 years of onset<br /> -
Some patients do not have thin corpus callosum<br /> -
Several forms of autosomal recessive spastic paraplegia (see <a href="/entry/270800">270800</a>)<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 spatacsin gene (SPG11, <a href="/entry/610844#0001">610844.0001</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>
Spastic paraplegia
- <a href="/phenotypicSeries/PS303350">PS303350</a>
- 86 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/1/208?start=-3&limit=10&highlight=208"> 1p36.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617225"> Spastic paraplegia 78, 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/617225"> 617225 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610513"> ATP13A2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610513"> 610513 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/553?start=-3&limit=10&highlight=553"> 1p34.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619027"> Spastic paraplegia 83, 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/619027"> 619027 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618994"> HPDL </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618994"> 618994 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/709?start=-3&limit=10&highlight=709"> 1p31.1-p21.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609727"> Spastic paraplegia 29, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609727"> 609727 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609727"> SPG29 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609727"> 609727 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/882?start=-3&limit=10&highlight=882"> 1p13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615686"> ?Spastic paraplegia 63, 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/615686"> 615686 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/102771"> AMPD2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/102771"> 102771 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/935?start=-3&limit=10&highlight=935"> 1p13.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614066"> Spastic paraplegia 47, 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/614066"> 614066 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607245"> AP4B1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607245"> 607245 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1617?start=-3&limit=10&highlight=1617"> 1q32.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/270750"> Spastic paraplegia 23, 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/270750"> 270750 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612666"> DSTYK </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612666"> 612666 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1773?start=-3&limit=10&highlight=1773"> 1q42.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613206"> ?Spastic paraplegia 44, 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/613206"> 613206 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608803"> GJC2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608803"> 608803 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1774?start=-3&limit=10&highlight=1774"> 1q42.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616451"> ?Spastic paraplegia 74, 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/616451"> 616451 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615316"> IBA57 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615316"> 615316 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/106?start=-3&limit=10&highlight=106"> 2p23.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618768"> Spastic paraplegia 81, 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/618768"> 618768 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607915"> SELENOI </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607915"> 607915 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/170?start=-3&limit=10&highlight=170"> 2p22.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182601"> Spastic paraplegia 4, 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/182601"> 182601 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604277"> SPAST </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604277"> 604277 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/325?start=-3&limit=10&highlight=325"> 2p13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620938"> Spastic paraplegia 93, 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/620938"> 620938 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608100"> NFU1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608100"> 608100 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/441?start=-3&limit=10&highlight=441"> 2p11.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610250"> Spastic paraplegia 31, 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/610250"> 610250 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609139"> REEP1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609139"> 609139 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/891?start=-3&limit=10&highlight=891"> 2q33.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605280"> Spastic paraplegia 13, 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/605280"> 605280 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/118190"> HSPD1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/118190"> 118190 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/1177?start=-3&limit=10&highlight=1177"> 2q37.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610357"> Spastic paraplegia 30, 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/610357"> 610357 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601255"> KIF1A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601255"> 601255 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/1177?start=-3&limit=10&highlight=1177"> 2q37.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620607"> Spastic paraplegia 30, 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/620607"> 620607 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601255"> KIF1A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601255"> 601255 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/505?start=-3&limit=10&highlight=505"> 3q12.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615658"> ?Spastic paraplegia 57, 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/615658"> 615658 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602498"> TFG </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602498"> 602498 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/803?start=-3&limit=10&highlight=803"> 3q25.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612539"> Spastic paraplegia 42, 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/612539"> 612539 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603690"> SLC33A1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603690"> 603690 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/894?start=-3&limit=10&highlight=894"> 3q27-q28 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605229"> Spastic paraplegia 14, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605229"> 605229 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605229"> SPG14 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605229"> 605229 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/8?start=-3&limit=10&highlight=8"> 4p16-p15 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612335"> Spastic paraplegia 38, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612335"> 612335 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612335"> SPG38 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612335"> 612335 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/174?start=-3&limit=10&highlight=174"> 4p13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620221"> Spastic paraplegia 79A, 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/620221"> 620221 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/191342"> UCHL1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/191342"> 191342 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/174?start=-3&limit=10&highlight=174"> 4p13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615491"> Spastic paraplegia 79B, 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/615491"> 615491 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/191342"> UCHL1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/191342"> 191342 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/471?start=-3&limit=10&highlight=471"> 4q25 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615030"> Spastic paraplegia 56, 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/615030"> 615030 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610670"> CYP2U1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610670"> 610670 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/509?start=-3&limit=10&highlight=509"> 5q31.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615625"> Spastic paraplegia 72A, 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/615625"> 615625 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609347"> REEP2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609347"> 609347 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/509?start=-3&limit=10&highlight=509"> 5q31.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620606"> ?Spastic paraplegia 72B, 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/620606"> 620606 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609347"> REEP2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609347"> 609347 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/6/33?start=-3&limit=10&highlight=33"> 6p25.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617046"> Spastic paraplegia 77, 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/617046"> 617046 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611592"> FARS2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611592"> 611592 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/6/323?start=-3&limit=10&highlight=323"> 6p21.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619735"> Spastic paraplegia 86, 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/619735"> 619735 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/142620"> ABHD16A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/142620"> 142620 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/6/851?start=-3&limit=10&highlight=851"> 6q23-q24.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608220"> Spastic paraplegia 25, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608220"> 608220 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608220"> SPG25 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608220"> 608220 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/37?start=-3&limit=10&highlight=37"> 7p22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613647"> Spastic paraplegia 48, 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/613647"> 613647 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613653"> AP5Z1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613653"> 613653 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/484?start=-3&limit=10&highlight=484"> 7q22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612936"> Spastic paraplegia 50, 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/612936"> 612936 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602296"> AP4M1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602296"> 602296 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/76?start=-3&limit=10&highlight=76"> 8p22 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614898"> Spastic paraplegia 53, 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/614898"> 614898 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609927"> VPS37A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609927"> 609927 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/154?start=-3&limit=10&highlight=154"> 8p21.1-q13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611945"> Spastic paraplegia 37, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611945"> 611945 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611945"> SPG37 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611945"> 611945 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/196?start=-3&limit=10&highlight=196"> 8p11.23 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620512"> Spastic paraplegia 18A, 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/620512"> 620512 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611605"> ERLIN2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611605"> 611605 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/196?start=-3&limit=10&highlight=196"> 8p11.23 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611225"> Spastic paraplegia 18B, 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/611225"> 611225 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611605"> ERLIN2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611605"> 611605 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/207?start=-3&limit=10&highlight=207"> 8p11.23 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615033"> Spastic paraplegia 54, 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/615033"> 615033 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615003"> DDHD2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615003"> 615003 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/240?start=-3&limit=10&highlight=240"> 8p11.21 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619686"> Spastic paraplegia 85, 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/619686"> 619686 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614649"> RNF170 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614649"> 614649 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/303?start=-3&limit=10&highlight=303"> 8q12.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/270800"> Spastic paraplegia 5A, 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/270800"> 270800 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603711"> CYP7B1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603711"> 603711 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/538?start=-3&limit=10&highlight=538"> 8q24.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603563"> Spastic paraplegia 8, 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/603563"> 603563 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610657"> WASHC5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610657"> 610657 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/175?start=-3&limit=10&highlight=175"> 9p13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614409"> Spastic paraplegia 46, 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/614409"> 614409 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609471"> GBA2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609471"> 609471 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/210?start=-3&limit=10&highlight=210"> 9q </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607152"> Spastic paraplegia 19, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607152"> 607152 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607152"> SPG19 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607152"> 607152 </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/620538"> Spastic paraplegia 91, autosomal dominant, with or without cerebellar ataxia </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/620538"> 620538 </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/10/250?start=-3&limit=10&highlight=250"> 10q22.1-q24.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609041"> Spastic paraplegia 27, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609041"> 609041 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609041"> SPG27 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609041"> 609041 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/10/427?start=-3&limit=10&highlight=427"> 10q24.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616586"> Spastic paraplegia 9B, 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/616586"> 616586 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138250"> ALDH18A1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138250"> 138250 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/10/427?start=-3&limit=10&highlight=427"> 10q24.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601162"> Spastic paraplegia 9A, 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/601162"> 601162 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138250"> ALDH18A1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/138250"> 138250 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/10/429?start=-3&limit=10&highlight=429"> 10q24.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615683"> Spastic paraplegia 64, 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/615683"> 615683 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601752"> ENTPD1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601752"> 601752 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/10/473?start=-3&limit=10&highlight=473"> 10q24.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615681"> Spastic paraplegia 62, 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/615681"> 615681 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611604"> ERLIN1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611604"> 611604 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/10/530?start=-3&limit=10&highlight=530"> 10q24.32-q24.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613162"> Spastic paraplegia 45, 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/613162"> 613162 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600417"> NT5C2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600417"> 600417 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/11/255?start=-3&limit=10&highlight=255"> 11p14.1-p11.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613364"> ?Spastic paraplegia 41, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613364"> 613364 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613364"> SPG41 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613364"> 613364 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/11/489?start=-3&limit=10&highlight=489"> 11q12.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/270685"> Silver spastic paraplegia 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/270685"> 270685 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606158"> BSCL2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606158"> 606158 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/11/584?start=-3&limit=10&highlight=584"> 11q13.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616907"> Spastic paraplegia 76, 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/616907"> 616907 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114220"> CAPN1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114220"> 114220 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/542?start=-3&limit=10&highlight=542"> 12q13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620323"> Spastic paraplegia 70, 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/620323"> 620323 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/156560"> MARS1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/156560"> 156560 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/547?start=-3&limit=10&highlight=547"> 12q13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604187"> Spastic paraplegia 10, 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/604187"> 604187 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602821"> KIF5A </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602821"> 602821 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/551?start=-3&limit=10&highlight=551"> 12q13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609195"> Spastic paraplegia 26, 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/609195"> 609195 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601873"> B4GALNT1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601873"> 601873 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/702?start=-3&limit=10&highlight=702"> 12q23-q24 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613096"> Spastic paraplegia 36, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613096"> 613096 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613096"> SPG36 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613096"> 613096 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/768?start=-3&limit=10&highlight=768"> 12q23.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620911"> Spastic paraplegia 92, 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/620911"> 620911 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620875"> FICD </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620875"> 620875 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/12/922?start=-3&limit=10&highlight=922"> 12q24.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615035"> Spastic paraplegia 55, 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/615035"> 615035 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613541"> MTRFR </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613541"> 613541 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/13/97?start=-3&limit=10&highlight=97"> 13q13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/275900"> Troyer syndrome </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/275900"> 275900 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607111"> SPART </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607111"> 607111 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/13/118?start=-3&limit=10&highlight=118"> 13q14 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607584"> Spastic paraplegia 24, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607584"> 607584 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607584"> SPG24 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607584"> 607584 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/13/175?start=-3&limit=10&highlight=175"> 13q14.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620106"> Spastic paraplegia 88, 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/620106"> 620106 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601892"> KPNA3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601892"> 601892 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/111?start=-3&limit=10&highlight=111"> 14q12-q21 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611252"> Spastic paraplegia 32, 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="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611252"> 611252 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611252"> SPG32 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611252"> 611252 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/151?start=-3&limit=10&highlight=151"> 14q12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614067"> Spastic paraplegia 52, 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/614067"> 614067 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607243"> AP4S1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607243"> 607243 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/161?start=-3&limit=10&highlight=161"> 14q13.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620417"> ?Spastic paraplegia 90B, autosomal recessive </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/620417"> 620417 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613540"> SPTSSA </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613540"> 613540 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/161?start=-3&limit=10&highlight=161"> 14q13.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620416"> Spastic paraplegia 90A, 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/620416"> 620416 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613540"> SPTSSA </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613540"> 613540 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/225?start=-3&limit=10&highlight=225"> 14q22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/182600"> Spastic paraplegia 3A, 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/182600"> 182600 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606439"> ATL1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606439"> 606439 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/244?start=-3&limit=10&highlight=244"> 14q22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609340"> Spastic paraplegia 28, 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/609340"> 609340 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614603"> DDHD1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614603"> 614603 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/333?start=-3&limit=10&highlight=333"> 14q24.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/270700"> Spastic paraplegia 15, 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/270700"> 270700 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612012"> ZFYVE26 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612012"> 612012 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/412?start=-3&limit=10&highlight=412"> 14q24.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619966"> Spastic paraplegia 87, 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/619966"> 619966 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619953"> TMEM63C </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619953"> 619953 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/15?start=-3&limit=10&highlight=15"> 15q11.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600363"> Spastic paraplegia 6, 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/600363"> 600363 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608145"> NIPA1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608145"> 608145 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/168?start=-3&limit=10&highlight=168"> 15q21.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604360"> Spastic paraplegia 11, 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/604360"> 604360 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610844"> SPG11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610844"> 610844 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/210?start=-3&limit=10&highlight=210"> 15q21.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613744"> Spastic paraplegia 51, 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/613744"> 613744 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607244"> AP4E1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607244"> 607244 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/289?start=-3&limit=10&highlight=289"> 15q22.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/248900"> Mast syndrome </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/248900"> 248900 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608181"> ACP33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608181"> 608181 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/232?start=-3&limit=10&highlight=232"> 16p12.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615685"> Spastic paraplegia 61, 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/615685"> 615685 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607669"> ARL6IP1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607669"> 607669 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/451?start=-3&limit=10&highlight=451"> 16q13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620379"> Spastic paraplegia 89, 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/620379"> 620379 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603243"> AMFR </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603243"> 603243 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/640?start=-3&limit=10&highlight=640"> 16q23.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612319"> Spastic paraplegia 35, 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/612319"> 612319 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611026"> FA2H </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611026"> 611026 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/16/745?start=-3&limit=10&highlight=745"> 16q24.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607259"> Spastic paraplegia 7, autosomal recessive </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/607259"> 607259 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602783"> PGN </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602783"> 602783 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/1047?start=-3&limit=10&highlight=1047"> 17q25.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618770"> Spastic paraplegia 82, 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/618770"> 618770 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602679"> PCYT2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602679"> 602679 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/207?start=-3&limit=10&highlight=207"> 19p13.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/612020"> Spastic paraplegia 39, 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/612020"> 612020 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603197"> PNPLA6 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603197"> 603197 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/526?start=-3&limit=10&highlight=526"> 19q12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615043"> ?Spastic paraplegia 43, 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/615043"> 615043 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614297"> C19orf12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614297"> 614297 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/577?start=-3&limit=10&highlight=577"> 19q13.12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616680"> Spastic paraplegia 75, 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/616680"> 616680 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/159460"> MAG </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/159460"> 159460 </a>
</span>
</td>
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<tr>
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<span class="mim-font">
<a href="/geneMap/19/824?start=-3&limit=10&highlight=824"> 19q13.32 </a>
</span>
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<td>
<span class="mim-font">
<a href="/entry/604805"> Spastic paraplegia 12, autosomal dominant </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
</td>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/604805"> 604805 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/603183"> RTN2 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/603183"> 603183 </a>
</span>
</td>
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<span class="mim-font">
<a href="/geneMap/19/961?start=-3&limit=10&highlight=961"> 19q13.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616282"> ?Spastic paraplegia 73, 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>
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<span class="mim-font">
<a href="/entry/616282"> 616282 </a>
</span>
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<span class="mim-font">
<a href="/entry/608846"> CPT1C </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/608846"> 608846 </a>
</span>
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<span class="mim-font">
<a href="/geneMap/22/66?start=-3&limit=10&highlight=66"> 22q11.21 </a>
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<span class="mim-font">
<a href="/entry/619621"> Spastic paraplegia 84, autosomal recessive </a>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<span class="mim-font">
<a href="/entry/619621"> 619621 </a>
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<span class="mim-font">
<a href="/entry/600286"> PI4KA </a>
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<span class="mim-font">
<a href="/entry/600286"> 600286 </a>
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<span class="mim-font">
<a href="/geneMap/X/364?start=-3&limit=10&highlight=364"> Xq11.2 </a>
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<span class="mim-font">
<a href="/entry/300266"> Spastic paraplegia 16, X-linked, complicated </a>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked recessive">XLR</abbr>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
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<span class="mim-font">
<a href="/entry/300266"> 300266 </a>
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<span class="mim-font">
<a href="/entry/300266"> SPG16 </a>
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<span class="mim-font">
<a href="/entry/300266"> 300266 </a>
</span>
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<tr>
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<span class="mim-font">
<a href="/geneMap/X/532?start=-3&limit=10&highlight=532"> Xq22.2 </a>
</span>
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<span class="mim-font">
<a href="/entry/312920"> Spastic paraplegia 2, X-linked </a>
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<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked recessive">XLR</abbr>
</span>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
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<span class="mim-font">
<a href="/entry/312920"> 312920 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/300401"> PLP1 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/300401"> 300401 </a>
</span>
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</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/598?start=-3&limit=10&highlight=598"> Xq24-q25 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300750"> Spastic paraplegia 34, X-linked </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked recessive">XLR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="2 - The disorder was placed on the map by statistical methods"> 2 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300750"> 300750 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300750"> SPG34 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/300750"> 300750 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/X/842?start=-3&limit=10&highlight=842"> Xq28 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/303350"> MASA syndrome </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/303350"> 303350 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/308840"> L1CAM </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/308840"> 308840 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
Not Mapped
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610244"> Spastic paraplegia 33, 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">
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610244"> 610244 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610244"> SPG33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/610244"> 610244 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
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<a href="#mimPhenotypicSeriesFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
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<span id="mimTextToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
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<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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<p>A number sign (#) is used with this entry because autosomal recessive spastic paraplegia-11 (SPG11) is caused by homozygous or compound heterozygous mutation in the gene encoding spatacsin (SPG11; <a href="/entry/610844">610844</a>) on chromosome 15q21.</p><p>Biallelic mutation in the SPG11 gene can also cause autosomal recessive juvenile-onset amyotrophic lateral sclerosis-5 (ALS5; <a href="/entry/602099">602099</a>) and autosomal recessive Charcot-Marie-Tooth disease type 2X (CMT2X; <a href="/entry/616668">616668</a>), different neurodegenerative disorders with overlapping features.</p>
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<div>
<a id="description" class="mim-anchor"></a>
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<strong>Description</strong>
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<p>Hereditary spastic paraplegia (SPG or HSP) is characterized by progressive weakness and spasticity of the lower limbs due to degeneration of corticospinal axons. SPG11 is a form of complicated SPG, in that it has neurologic features in addition to spasticity.</p><p>For a discussion of genetic heterogeneity of autosomal recessive SPG, see SPG5A (<a href="/entry/270800">270800</a>).</p>
</span>
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</div>
<div>
<a id="clinicalFeatures" class="mim-anchor"></a>
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<strong>Clinical Features</strong>
</span>
</h4>
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<div id="mimClinicalFeaturesFold" class="collapse in mimTextToggleFold">
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<p><a href="#11" class="mim-tip-reference" title="Nakamura, A., Izumi, K., Umehara, F., Kuriyama, M., Hokezu, Y., Nakagawa, M., Shimmyozu, K., Izumo, S., Osame, M. &lt;strong&gt;Familial spastic paraplegia with mental impairment and thin corpus callosum.&lt;/strong&gt; J. Neurol. Sci. 131: 35-42, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7561945/&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;7561945&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/0022-510x(95)00028-z&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="7561945">Nakamura et al. (1995)</a> reported 2 families with autosomal recessive hereditary spastic paraplegia, mental impairment, and thin corpus callosum. In the first family, 3 affected brothers had onset in the second decade of gait disturbance resulting in wheelchair use by age 21 years. All 3 patients had an IQ less than 60. Other features included lower limb spasticity, slight ataxia, and mild sensory impairment. Three sisters from a second family, in which the parents were first cousins, had similar features to the affected brothers in the first family. Brain CT and MRI of 4 patients showed mild frontal and temporal cortical atrophy, mild ventricular dilatation, and widening of the frontal longitudinal fissure. All patients had a markedly thin corpus callosum which was not consistent with a degenerative process and was distinct from congenital agenesis (ACC; <a href="/entry/217990">217990</a>) and partial agenesis (e.g., <a href="/entry/304100">304100</a>) of the corpus callosum. Peripheral nerve biopsies showed decreased numbers of myelinated fibers, axonal degeneration, and abnormal Schwann cell inclusions. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7561945" 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="#20" class="mim-tip-reference" title="Ueda, M., Katayama, Y., Kamiya, T., Mishina, M., Igarashi, H., Okubo, S., Senda, M., Iwabuchi, K., Terashi, A. &lt;strong&gt;Hereditary spastic paraplegia with a thin corpus callosum and thalamic involvement in Japan.&lt;/strong&gt; Neurology 51: 1751-1754, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9855541/&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;9855541&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/wnl.51.6.1751&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="9855541">Ueda et al. (1998)</a> reported 2 Japanese sibs with SPG11 who showed thalamic glucose hypometabolism on positron emission tomography (PET) scan. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9855541" 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="#21" class="mim-tip-reference" title="Winner, B., Uyanik, G., Gross, C., Lange, M., Schulte-Mattler, W., Schuierer, G., Marienhagen, J., Hehr, U., Winkler, J. &lt;strong&gt;Clinical progression and genetic analysis in hereditary spastic paraplegia with thin corpus callosum in spastic gait gene 11 (SPG11).&lt;/strong&gt; Arch. Neurol. 61: 117-121, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14732628/&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;14732628&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.61.1.117&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="14732628">Winner et al. (2004)</a> reported 2 German sisters with SPG11. The more severely affected sister had onset at age 24 years of a slowly progressive spastic paraplegia with increasing urinary urge incontinence and slow cognitive decline. Both sisters were obese, whereas no other family members were overweight. Serial MRIs showed a tendency toward progressive atrophy of the rostral corpus callosum, as well as symmetric white matter lesions. Transcranial stimulation showed a lack of transcallosal inhibition, and PET scan showed cortical and thalamic hypometabolism that decreased further within 4 years. Combined axonal loss and demyelinating sensory neuropathy were also present. No mutations were identified in the SLC12A6 gene (<a href="/entry/604878">604878</a>), which is mutated in agenesis of the corpus callosum with peripheral neuropathy (ACCPN; <a href="/entry/218000">218000</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14732628" 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="Casali, C., Valente, E. M., Bertini, E., Montagna, G., Criscuolo, C., De Michele, G., Villanova, M., Damiano, M., Pierallini, A., Brancati, F., Scarano, V., Tessa, A., and 11 others. &lt;strong&gt;Clinical and genetic studies in hereditary spastic paraplegia with thin corpus callosum.&lt;/strong&gt; Neurology 62: 262-268, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14745065/&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;14745065&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/wnl.62.2.262&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="14745065">Casali et al. (2004)</a> reported 18 patients from 12 Italian families with HSP-TCC; 2 of the families were consanguineous. The clinical phenotype was homogeneous, with gait difficulties beginning at a median age of 13 years (range 4 to 20 years) and progressing to loss of ambulation within approximately 10 years. Neurologic features included spasticity, pyramidal signs, hyperreflexia, and severe mental deterioration. MRI studies showed thin corpus callosum in all patients and periventricular white matter changes in 15 of 18 patients. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14745065" 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="#9" class="mim-tip-reference" title="Lossos, A., Stevanin, G., Meiner, V., Argov, Z., Bouslam, N., Newman, J. P., Gomori, J. M., Klebe, S., Lerer, I., Elleuch, N., Silverstein, S., Durr, A., Abramsky, O., Ben-Nariah, Z., Brice, A. &lt;strong&gt;Hereditary spastic paraplegia with thin corpus callosum: reduction of the SPG11 interval and evidence for further genetic heterogeneity.&lt;/strong&gt; Arch. Neurol. 63: 756-760, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16682547/&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;16682547&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.63.5.756&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="16682547">Lossos et al. (2006)</a> reported 2 consanguineous Arab-Israeli families in which 2 sibs in each family had autosomal recessive HSP-TCC. All patients had onset of clinical symptoms during the second decade of life, with cognitive decline preceding gait disturbance by 2 to 5 years. Cardinal signs included pseudobulbar dysarthria, spastic paraparesis with lower limb hyperreflexia, upper limb hyperreflexia, extensor plantar responses, and distal amyotrophy. Brain imaging of 1 affected sib from each family showed thin corpus callosum, white matter abnormalities, and mild frontal atrophy. Two of 3 patients examined had mild axonal peripheral neuropathy. Two affected sibs in 1 family were obese. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16682547" 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="#19" class="mim-tip-reference" title="Stevanin, G., Santorelli, F. M., Azzedine, H., Coutinho, P., Chomilier, J., Denora, P. S., Martin, E., Ouvrard-Hernandez, A.-M., Tessa, A., Bouslam, N, Lossos, A., Charles, P., and 13 others. &lt;strong&gt;Mutations in SPG11, encoding spatacsin, are a major cause of spastic paraplegia with thin corpus callosum.&lt;/strong&gt; Nature Genet. 39: 366-372, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17322883/&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;17322883&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1980&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="17322883">Stevanin et al. (2007)</a> reviewed the features of autosomal recessive hereditary spastic paraplegia with thin corpus callosum (ARHSP-TCC). Cognitive impairment is first noticed in childhood and progresses insidiously to severe functional disability of a frontal type over a period of 10-20 years (<a href="#11" class="mim-tip-reference" title="Nakamura, A., Izumi, K., Umehara, F., Kuriyama, M., Hokezu, Y., Nakagawa, M., Shimmyozu, K., Izumo, S., Osame, M. &lt;strong&gt;Familial spastic paraplegia with mental impairment and thin corpus callosum.&lt;/strong&gt; J. Neurol. Sci. 131: 35-42, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7561945/&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;7561945&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/0022-510x(95)00028-z&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="7561945">Nakamura et al., 1995</a>; <a href="#21" class="mim-tip-reference" title="Winner, B., Uyanik, G., Gross, C., Lange, M., Schulte-Mattler, W., Schuierer, G., Marienhagen, J., Hehr, U., Winkler, J. &lt;strong&gt;Clinical progression and genetic analysis in hereditary spastic paraplegia with thin corpus callosum in spastic gait gene 11 (SPG11).&lt;/strong&gt; Arch. Neurol. 61: 117-121, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14732628/&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;14732628&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.61.1.117&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="14732628">Winner et al., 2004</a>). Some affected individuals develop a pseudobulbar involvement, with dysarthria, dysphagia, and upper limb spasticity, associated with bladder dysfunction and signs of predominantly axonal, motor, or sensorimotor peripheral neuropathy. PET scan shows cortical and thalamic glucose hypometabolism. MRI shows thin corpus callosum that predominates in the rostral third, with hyperintensities in periventricular white matter and cerebral cortical atrophy predominating in the frontal region. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=14732628+7561945+17322883" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#6" class="mim-tip-reference" title="Del Bo, R., Di Fonzo, A., Ghezzi, S., Locatelli, F., Stevanin, G., Costa, A., Corti, S., Bresolin, N., Comi, G. P. &lt;strong&gt;SPG11: a consistent clinical phenotype in a family with homozygous spatacsin truncating mutation.&lt;/strong&gt; Neurogenetics 8: 301-305, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17717710/&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;17717710&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s10048-007-0095-z&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="17717710">Del Bo et al. (2007)</a> reported 27-year-old Italian opposite-sex dizygotic twins with autosomal recessive SPG11. The sibs had onset of ataxia and cognitive impairment at ages 12 and 15 years, respectively. The disorder progressed rapidly, leading to spastic paraplegia, dysarthria, and peripheral neuropathy. Both were wheelchair-bound in their early twenties. Brain MRI showed thin corpus callosum and cortical atrophy in both sibs. Both parents were healthy and came from the same small town in Sicily but denied consanguinity. Genetic analysis identified a homozygous mutation in the SPG11 gene (733delAT; <a href="/entry/610844#0004">610844.0004</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17717710" 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="#8" class="mim-tip-reference" title="Hehr, U., Bauer, P., Winner, B., Schule, R., Olmez, A., Koehler, W., Uyanik, G., Engel, A., Lenz, D., Seibel, A., Hehr, A., Ploetz, S., and 13 others. &lt;strong&gt;Long-term course and mutational spectrum of spatacsin-linked spastic paraplegia.&lt;/strong&gt; Ann. Neurol. 62: 656-665, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18067136/&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;18067136&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.21310&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="18067136">Hehr et al. (2007)</a> reported clinical details of 18 patients from 9 families with genetically confirmed SPG11. Several of the families had previously been reported by <a href="#12" class="mim-tip-reference" title="Olmez, A., Uyanik, G., Ozgul. R. K., Gross, C., Cirak, S., Elibol, B., Anlar, B., Winner, B., Hehr, U., Topaloglu, H., Winkler, J. &lt;strong&gt;Further clinical and genetic characterization of SPG11: hereditary spastic paraplegia with thin corpus callosum.&lt;/strong&gt; Neuropediatrics 37: 59-66, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16773502/&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;16773502&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1055/s-2006-923982&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="16773502">Olmez et al. (2006)</a>. The mean age at onset of walking impairment was 16 years (range, 8 to 31). Patients had predominantly lower limb paresis with proximal spasticity and hyperreflexia with extensor plantar responses. The gait was slow, spastic, and slightly ataxic. Dysarthria was noted in 85% of patients, and amyotrophy of the hypothenar and thenar muscles was commonly present. General mental impairment of varying degrees was present in 83%, and was associated with hypometabolism of the frontal cortex and thalamus on PET scan. MRI performed in at least 1 member of each family showed rostral atrophy of the corpus callosum and supratentorial white matter changes. Peripheral nerve biopsy showed hypomyelination of large fibers and loss of unmyelinated fibers, consistent with a clinical picture of mixed axonal and demyelinating polyneuropathy. Evidence also suggested disturbed axonal transport. The long-term course of 1 patient followed for 10 years showed progression of the disorder. <a href="#8" class="mim-tip-reference" title="Hehr, U., Bauer, P., Winner, B., Schule, R., Olmez, A., Koehler, W., Uyanik, G., Engel, A., Lenz, D., Seibel, A., Hehr, A., Ploetz, S., and 13 others. &lt;strong&gt;Long-term course and mutational spectrum of spatacsin-linked spastic paraplegia.&lt;/strong&gt; Ann. Neurol. 62: 656-665, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18067136/&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;18067136&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.21310&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="18067136">Hehr et al. (2007)</a> concluded that the disease process in SPG11 affects the corticospinal tract, major corticocortical connections via the corpus callosum, and the peripheral nervous system, and likely involves impaired axonal transport. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=16773502+18067136" 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="#14" class="mim-tip-reference" title="Samaranch, L., Riverol, M., Masdeu, J. C., Lorenzo, E., Vidal-Taboada, J. M., Irigoyen, J., Pastor, M. A., de Castro, P., Pastor, P. &lt;strong&gt;SPG11 compound mutations in spastic paraparesis with thin corpus callosum.&lt;/strong&gt; Neurology 71: 332-336, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18663179/&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;18663179&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/01.wnl.0000319646.23052.d1&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="18663179">Samaranch et al. (2008)</a> reported 4 Spanish patients with SPG11 confirmed by genetic analysis. All had some degree of mental retardation and a thin corpus callosum on brain imaging. The 3 older individuals had spastic paraparesis since late childhood and decreased brain metabolism on PET studies, predominantly in the thalamus and paracentral cortex of the hemispheres. <a href="#14" class="mim-tip-reference" title="Samaranch, L., Riverol, M., Masdeu, J. C., Lorenzo, E., Vidal-Taboada, J. M., Irigoyen, J., Pastor, M. A., de Castro, P., Pastor, P. &lt;strong&gt;SPG11 compound mutations in spastic paraparesis with thin corpus callosum.&lt;/strong&gt; Neurology 71: 332-336, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18663179/&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;18663179&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/01.wnl.0000319646.23052.d1&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="18663179">Samaranch et al. (2008)</a> postulated that the thalamic dysfunction may contribute to impaired attention. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18663179" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><strong><em>Clinical Variability</em></strong></p><p>
<a href="#4" class="mim-tip-reference" title="Crimella, C., Arnoldi, A., Crippa, F., Mostacciuolo, M. L., Boaretto, F., Sironi, M., D&#x27;Angelo, M. G., Manzoni, S., Piccinini, L., Turconi, A. C., Toscano, A., Musumeci, O., Benedetti, S., Fazio, R., Bresolin, N., Daga, A., Martinuzzi, A., Bassi, M. T. &lt;strong&gt;Point mutations and a large intragenic deletion in SPG11 in complicated spastic paraplegia without thin corpus callosum.&lt;/strong&gt; J. Med. Genet. 46: 345-351, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19196735/&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;19196735&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.2008.063321&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="19196735">Crimella et al. (2009)</a> identified homozygous or compound heterozygous mutations in the SPG11 gene in 4 (40%) of 10 patients with SPG and thin corpus callosum and in 3 (8.5%) of 35 patients with SPG without thin corpus callosum. The molecular findings were consistent with a loss-of-function mechanism. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19196735" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#13" class="mim-tip-reference" title="Orlen, H., Melberg, A., Raininko, R., Kumlien, E., Entesarian, M., Soderberg, P., Pahlman, M., Darin, N., Kyllerman, M., Holmberg, E., Engler, H., Eriksson, U., Dahl, N. &lt;strong&gt;SPG11 mutations cause Kjellin syndrome, a hereditary spastic paraplegia with thin corpus callosum and central retinal degeneration.&lt;/strong&gt; Am. J. Med. Genet. 150B: 984-992, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19194956/&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;19194956&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.b.30928&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="19194956">Orlen et al. (2009)</a> reported 5 patients from 4 unrelated families with 5 truncating mutations in the SPG11 gene (see, e.g., <a href="/entry/610844#0007">610844.0007</a>-<a href="/entry/610844#0009">610844.0009</a>). Two patients had delayed psychomotor development, 2 had onset at ages 3 and 4 years, respectively, and 1 had onset at age 14 years. Four patients were wheelchair-bound in the third or fourth decades; the fifth patient was only 14 at the time of the study and had a milder phenotype overall. The 4 older patients (ages 29 to 48) had lower limb spasticity, hyperreflexia with extensor plantar responses, sphincter disturbances, amyotrophy of the hands or calves, thin corpus callosum, cerebral atrophy, and periventricular white matter changes. All patients had some degree of cognitive dysfunction or mental retardation. Three were obese. An unusual finding in the 4 older patients was progressive central retinal degeneration, which was reminiscent of the phenotype for Kjellin syndrome (SPG15; <a href="/entry/270700">270700</a>). <a href="#13" class="mim-tip-reference" title="Orlen, H., Melberg, A., Raininko, R., Kumlien, E., Entesarian, M., Soderberg, P., Pahlman, M., Darin, N., Kyllerman, M., Holmberg, E., Engler, H., Eriksson, U., Dahl, N. &lt;strong&gt;SPG11 mutations cause Kjellin syndrome, a hereditary spastic paraplegia with thin corpus callosum and central retinal degeneration.&lt;/strong&gt; Am. J. Med. Genet. 150B: 984-992, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19194956/&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;19194956&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.b.30928&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="19194956">Orlen et al. (2009)</a> concluded that central retinal degeneration may be a previously unrecognized late-onset feature of this disorder. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19194956" 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="#10" class="mim-tip-reference" title="Martinez Murillo, F., Kobayashi, H., Pegoraro, E., Galluzzi, G., Creel, G., Mariani, C., Farina, E., Ricci, E., Alfonso, G., Pauli, R. M., Hoffman, E. P. &lt;strong&gt;Genetic localization of a new locus for recessive familial spastic paraparesis to 15q13-15.&lt;/strong&gt; Neurology 53: 50-56, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10408536/&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;10408536&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/wnl.53.1.50&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="10408536">Martinez Murillo et al. (1999)</a> performed genetic linkage analysis in 8 recessive familial spastic paraparesis families from America and Europe. The known recessive SPG loci, SPG5A, SPG7 (<a href="/entry/607259">607259</a>), as well as X-linked types of spastic paraplegia, SPG1 (<a href="/entry/303350">303350</a>) and SPG2 (<a href="/entry/312920">312920</a>), were excluded in 7 families; 1 family showed data consistent with linkage to the chromosome 8 locus. The other families showed positive lod scores for markers on 15q. The maximum multipoint combined lod score for non-chromosome 8 families was 3.14 for markers D15S1007, D15S971, D15S118, and D15S1012, at a distance of 6.41 cM from the marker D15S1007, in a region between D15S971 and D15S118. The data indicated a new locus for autosomal recessive familial spastic paraparesis on 15q13-q15, and the authors suggested that this may be a common form. Two of the 7 families linked to chromosome 15q had a complicated form of SPG with attenuation of the corpus callosum and mental deterioration; 3 families had SPG and pes cavus, but no abnormalities of the corpus callosum, and 2 families had a pure form of HSP. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10408536" 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 10 of 13 Japanese families with complicated HSP with mental impairment and thin corpus callosum, <a href="#15" class="mim-tip-reference" title="Shibasaki, Y., Tanaka, H., Iwabuchi, K., Kawasaki, S., Kondo, H., Uekawa, K., Ueda, M., Kamiya, T., Katayama, Y., Nakamura, A., Takashima, H., Nakagawa, M., and 10 others. &lt;strong&gt;Linkage of autosomal recessive hereditary spastic paraplegia with mental impairment and thin corpus callosum to chromosome 15q13-15.&lt;/strong&gt; Ann. Neurol. 48: 108-112, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10894224/&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;10894224&lt;/a&gt;]" pmid="10894224">Shibasaki et al. (2000)</a> found linkage to chromosome 15q13-q15 (maximum multipoint lod score of 9.68 at a position 1.2 cM telomeric from D15S994 to D15S659). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10894224" 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="Casali, C., Valente, E. M., Bertini, E., Montagna, G., Criscuolo, C., De Michele, G., Villanova, M., Damiano, M., Pierallini, A., Brancati, F., Scarano, V., Tessa, A., and 11 others. &lt;strong&gt;Clinical and genetic studies in hereditary spastic paraplegia with thin corpus callosum.&lt;/strong&gt; Neurology 62: 262-268, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/14745065/&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;14745065&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1212/wnl.62.2.262&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="14745065">Casali et al. (2004)</a> demonstrated linkage to 15q13-q15 in 5 of 12 Italian families with HSP-TCC (maximum cumulative lod score of 3.35 at marker D15S659). Haplotype analysis excluded a founder effect. The absence of strong linkage to the SPG11 locus in 7 families indicated genetic heterogeneity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14745065" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>By linkage and haplotype analysis of 2 consanguineous Arab-Israeli families with SPG and thin corpus callosum, <a href="#9" class="mim-tip-reference" title="Lossos, A., Stevanin, G., Meiner, V., Argov, Z., Bouslam, N., Newman, J. P., Gomori, J. M., Klebe, S., Lerer, I., Elleuch, N., Silverstein, S., Durr, A., Abramsky, O., Ben-Nariah, Z., Brice, A. &lt;strong&gt;Hereditary spastic paraplegia with thin corpus callosum: reduction of the SPG11 interval and evidence for further genetic heterogeneity.&lt;/strong&gt; Arch. Neurol. 63: 756-760, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16682547/&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;16682547&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.63.5.756&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="16682547">Lossos et al. (2006)</a> refined the candidate SPG11 locus to a 13-Mb (17-cM) interval on chromosome 15q13-q15 between markers D15S971 and D15S143 (maximum multipoint lod scores of 3.1 and 2.5 for the 2 families, respectively). A third consanguineous Arab-Israeli family with a similar phenotype was excluded from the SPG11 locus, indicating genetic heterogeneity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16682547" 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="#18" class="mim-tip-reference" title="Stevanin, G., Montagna, G., Azzedine, H., Valente, E. M., Durr, A., Scarano, V., Bouslam, N., Cassandrini, D., Denora, P. S., Criscuolo, C., Belarbi, S., Orlacchio, A., and 27 others. &lt;strong&gt;Spastic paraplegia with thin corpus callosum: description of 20 new families, refinement of the SPG11 locus, candidate gene analysis and evidence of genetic heterogeneity.&lt;/strong&gt; Neurogenetics 7: 149-156, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16699786/&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;16699786&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s10048-006-0044-2&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="16699786">Stevanin et al. (2006)</a> reported 6 Mediterranean families with autosomal recessive HSP-TCC showing linkage to the SPG11 locus (positive lod scores at marker D15S659). Haplotype reconstruction allowed refinement of the locus to a 6-cM interval. Genetic analysis excluded mutations in the MAP1A (<a href="/entry/600178">600178</a>) and SEMA6D (<a href="/entry/609295">609295</a>) genes in the index patients from 5 families showing linkage to SPG11. Linkage to the SPG11 locus was excluded in 4 additional families with HSP-TCC, indicating genetic heterogeneity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16699786" 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="#19" class="mim-tip-reference" title="Stevanin, G., Santorelli, F. M., Azzedine, H., Coutinho, P., Chomilier, J., Denora, P. S., Martin, E., Ouvrard-Hernandez, A.-M., Tessa, A., Bouslam, N, Lossos, A., Charles, P., and 13 others. &lt;strong&gt;Mutations in SPG11, encoding spatacsin, are a major cause of spastic paraplegia with thin corpus callosum.&lt;/strong&gt; Nature Genet. 39: 366-372, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17322883/&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;17322883&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1980&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="17322883">Stevanin et al. (2007)</a> genotyped 12 families with ARHSP-TCC using 34 microsatellite markers in the candidate interval for SPG11 and the adjacent and overlapping loci for SPG21 (<a href="/entry/248900">248900</a>) and agenesis of corpus callosum with polyneuropathy (<a href="/entry/218000">218000</a>). Maximal positive multipoint lod scores ranging from 0.60 to 3.85, which corresponded to the maximal expected values in the pedigrees, were obtained in 10 families in the SPG11 interval. The combined multipoint lod score reached the value of 17.32 for these families. Linkage was not conclusive in the 2 remaining kindreds. Haplotype reconstructions in 2 consanguineous families with strong evidence for linkage to SPG11 further restricted the region most likely to contain the responsible gene to a 3.2-cM homozygous region between D15S778 and D15S659. This interval contains approximately 40 genes. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17322883" 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>The transmission pattern of SPG11 in the families reported by <a href="#19" class="mim-tip-reference" title="Stevanin, G., Santorelli, F. M., Azzedine, H., Coutinho, P., Chomilier, J., Denora, P. S., Martin, E., Ouvrard-Hernandez, A.-M., Tessa, A., Bouslam, N, Lossos, A., Charles, P., and 13 others. &lt;strong&gt;Mutations in SPG11, encoding spatacsin, are a major cause of spastic paraplegia with thin corpus callosum.&lt;/strong&gt; Nature Genet. 39: 366-372, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17322883/&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;17322883&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1980&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="17322883">Stevanin et al. (2007)</a> was consistent with autosomal recessive inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17322883" 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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<p><a href="#19" class="mim-tip-reference" title="Stevanin, G., Santorelli, F. M., Azzedine, H., Coutinho, P., Chomilier, J., Denora, P. S., Martin, E., Ouvrard-Hernandez, A.-M., Tessa, A., Bouslam, N, Lossos, A., Charles, P., and 13 others. &lt;strong&gt;Mutations in SPG11, encoding spatacsin, are a major cause of spastic paraplegia with thin corpus callosum.&lt;/strong&gt; Nature Genet. 39: 366-372, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17322883/&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;17322883&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1980&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="17322883">Stevanin et al. (2007)</a> analyzed 18 genes in the 3.2-cM SPG11 candidate interval by direct sequencing of all exons and their splicing sites, and identified 10 mutations in the KIAA1840 gene (<a href="/entry/610844">610844</a>) in 11 families. The KIAA1840 gene, encoding spatacsin, is expressed ubiquitously in the nervous system but most prominently in the cerebellum, cerebral cortex, hippocampus, and pineal gland. The mutations were either nonsense or insertions or deletions leading to a frameshift, suggesting a loss-of-function mechanism. All mutations were in the homozygous state except in 2 kindreds, in which affected individuals were compound heterozygous. Only 2 mutations were found in more than 1 pedigree: R2034X (<a href="/entry/610844#0001">610844.0001</a>) in 3 consanguineous North African kindreds, and a 5-bp deletion in exon 3 (<a href="/entry/610844#0002">610844.0002</a>) in 2 Portuguese families. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17322883" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>The SPG11 gene appears to be the one most frequently responsible for ARHSP-TCC. Only a single family (8%) in the cohort studied by <a href="#19" class="mim-tip-reference" title="Stevanin, G., Santorelli, F. M., Azzedine, H., Coutinho, P., Chomilier, J., Denora, P. S., Martin, E., Ouvrard-Hernandez, A.-M., Tessa, A., Bouslam, N, Lossos, A., Charles, P., and 13 others. &lt;strong&gt;Mutations in SPG11, encoding spatacsin, are a major cause of spastic paraplegia with thin corpus callosum.&lt;/strong&gt; Nature Genet. 39: 366-372, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/17322883/&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;17322883&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1980&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="17322883">Stevanin et al. (2007)</a> did not have a mutation in SPG11, indicating that there is at least one other responsible gene. On the other hand, whether the SPG11 gene accounts for other clinical phenotypes of ARHSP remained to be determined. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17322883" 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>Spastic paraplegias are believed to result from a dying back of exons. Mitochondrial metabolism, endosomal and trans-Golgi trafficking and axonal transport have been implicated in several HSPs (<a href="#5" class="mim-tip-reference" title="Crosby, A. H., Proukakis, C. &lt;strong&gt;Is the transportation highway the right road for hereditary spastic paraplegia? (Editorial)&lt;/strong&gt; Am. J. Hum. Genet. 71: 1009-1016, 2002.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12355399/&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;12355399&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/344206&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="12355399">Crosby and Proukakis, 2002</a>). Although the function of spatacsin remains unknown, the experimental evidence that it is expressed in all tissues and is highly conserved among species suggests that it has an essential biologic function. The possible presence of at least one transmembrane domain suggested that spatacsin may be a receptor or transporter. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12355399" 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 18 patients from 9 unrelated families with SPG11, <a href="#8" class="mim-tip-reference" title="Hehr, U., Bauer, P., Winner, B., Schule, R., Olmez, A., Koehler, W., Uyanik, G., Engel, A., Lenz, D., Seibel, A., Hehr, A., Ploetz, S., and 13 others. &lt;strong&gt;Long-term course and mutational spectrum of spatacsin-linked spastic paraplegia.&lt;/strong&gt; Ann. Neurol. 62: 656-665, 2007.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18067136/&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;18067136&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.21310&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="18067136">Hehr et al. (2007)</a> identified 11 different mutations, including 10 novel mutations, in the SPG11 gene (see, e.g., <a href="/entry/610844#0005">610844.0005</a>-<a href="/entry/610844#0006">610844.0006</a>) in the homozygous or compound heterozygous state. Four of the families were consanguineous, including 3 Turkish families initially reported by <a href="#12" class="mim-tip-reference" title="Olmez, A., Uyanik, G., Ozgul. R. K., Gross, C., Cirak, S., Elibol, B., Anlar, B., Winner, B., Hehr, U., Topaloglu, H., Winkler, J. &lt;strong&gt;Further clinical and genetic characterization of SPG11: hereditary spastic paraplegia with thin corpus callosum.&lt;/strong&gt; Neuropediatrics 37: 59-66, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16773502/&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;16773502&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1055/s-2006-923982&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="16773502">Olmez et al. (2006)</a>. Mutations were distributed throughout the entire spatacsin gene without obvious clustering. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=16773502+18067136" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#1" class="mim-tip-reference" title="Bauer, P., Winner, B., Schule, R., Bauer, C., Hafele, V., Hehr, U., Bonin, M., Walter, M., Karle, K., Ringer, T. M., Riess, O., Winkler, J., Schols, L. &lt;strong&gt;Identification of a heterozygous genomic deletion in the spatacsin gene in SPG11 patients using high-resolution comparative genomic hybridization.&lt;/strong&gt; Neurogenetics 10: 43-48, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18787847/&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;18787847&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s10048-008-0144-2&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="18787847">Bauer et al. (2009)</a> used high-resolution comparative genomic hybridization (HRCGH) to identify deletions in the SPG11 gene in 3 patients with SPG11 in whom only 1 mutant SPG11 allele had been identified by gene sequencing. HRCGH analysis suggested heterozygous genomic deletion in all 3 patients; however, quantitative PCR confirmed an 8.23-kb deletion in only 1 patient. The 8.23-kb deletion resulted in loss of exons 31 to 34 and was also found in the proband's affected sister and their unaffected father. The clinical features in the brother and sister did not differ from those of patients with point mutations. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18787847" 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="#17" class="mim-tip-reference" title="Sjaastad, O., Blau, N., Rydning, S. L., Peters, V., Rodningen, O., Stray-Pedersen, A., Krossnes, B., Tallaksen, C., Koht, J. &lt;strong&gt;Homocarnosinosis: a historical update and findings in the SPG11 gene.&lt;/strong&gt; Acta Neurol. Scand. 138: 245-250, 2018.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/29732542/&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;29732542&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/ane.12949&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="29732542">Sjaastad et al. (2018)</a> identified a homozygous splice site mutation in the SPG11 gene (c.2316+1G-A) in the Norwegian family (family 1) originally reported by <a href="#16" class="mim-tip-reference" title="Sjaastad, O., Berstad, J., Gjesdahl, P., Gjessing, L. R. &lt;strong&gt;Homocarnosinosis. 2. A familial metabolic disorder associated with spastic paraplegia, progressive mental deficiency, and retinal pigmentation.&lt;/strong&gt; Acta Neurol. Scand. 53: 275-290, 1976.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/1266573/&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;1266573&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1600-0404.1976.tb04348.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="1266573">Sjaastad et al. (1976)</a> in which 2 brothers and a sister had progressive spastic paraplegia, impaired intellectual development, retinal pigmentation, and levels of homocarnosine 20 times normal (see <a href="/entry/236130">236130</a>). The SPG phenotype in the family correlated with SPG11, and the elevated levels of homocarnosine did not appear to be a biomarker for SPG11 as it has not been found in other patients with SPG11. The c.2316+1G-A mutation had previously been identified by <a href="#7" class="mim-tip-reference" title="Erichsen, A. K., Stevanin, G., Denora, P., Brice, A., Tallaksen, C. M. E. &lt;strong&gt;SPG11--the most common type of recessive spastic paraplegia in Norway?&lt;/strong&gt; Acta Neurol. Scand. Suppl. 188: 46-50, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18439221/&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;18439221&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1600-0404.2008.01031.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="18439221">Erichsen et al. (2008)</a> in a Norwegian man with SPG11 who had no family history of the disorder. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=29732542+1266573+18439221" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>Population Genetics</strong>
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<p><a href="#2" class="mim-tip-reference" title="Boukhris, A., Stevanin, G., Feki, I., Denora, P., Elleuch, N., Miladi, M. I., Goizet, C., Truchetto, J., Belal, S., Brice, A., Mhiri, C. &lt;strong&gt;Tunisian hereditary spastic paraplegias: clinical variability supported by genetic heterogeneity.&lt;/strong&gt; Clin. Genet. 75: 527-536, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19438933/&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;19438933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1399-0004.2009.01176.x&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="19438933">Boukhris et al. (2009)</a> identified a molecular basis for hereditary spastic paraplegia in 13 (34.2%) of 38 unrelated families from southern Tunisia with the disorder. The most common forms of SPG were SPG11 in 7 (18.4%) families and SPG15 (<a href="/entry/270700">270700</a>) in 4 (10.5%) families. SPG4 (<a href="/entry/182601">182601</a>) and SPG5 (<a href="/entry/270800">270800</a>) were present in 1 family each. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19438933" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>REFERENCES</strong>
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<a id="1" class="mim-anchor"></a>
<a id="Bauer2009" class="mim-anchor"></a>
<div class="">
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Bauer, P., Winner, B., Schule, R., Bauer, C., Hafele, V., Hehr, U., Bonin, M., Walter, M., Karle, K., Ringer, T. M., Riess, O., Winkler, J., Schols, L.
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[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18787847/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18787847</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18787847" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/s10048-008-0144-2" target="_blank">Full Text</a>]
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<a id="Boukhris2009" class="mim-anchor"></a>
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Boukhris, A., Stevanin, G., Feki, I., Denora, P., Elleuch, N., Miladi, M. I., Goizet, C., Truchetto, J., Belal, S., Brice, A., Mhiri, C.
<strong>Tunisian hereditary spastic paraplegias: clinical variability supported by genetic heterogeneity.</strong>
Clin. Genet. 75: 527-536, 2009.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/19438933/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">19438933</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19438933" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1111/j.1399-0004.2009.01176.x" target="_blank">Full Text</a>]
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<a id="Casali2004" class="mim-anchor"></a>
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Casali, C., Valente, E. M., Bertini, E., Montagna, G., Criscuolo, C., De Michele, G., Villanova, M., Damiano, M., Pierallini, A., Brancati, F., Scarano, V., Tessa, A., and 11 others.
<strong>Clinical and genetic studies in hereditary spastic paraplegia with thin corpus callosum.</strong>
Neurology 62: 262-268, 2004.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/14745065/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">14745065</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14745065" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1212/wnl.62.2.262" target="_blank">Full Text</a>]
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<a id="Crimella2009" class="mim-anchor"></a>
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Crimella, C., Arnoldi, A., Crippa, F., Mostacciuolo, M. L., Boaretto, F., Sironi, M., D'Angelo, M. G., Manzoni, S., Piccinini, L., Turconi, A. C., Toscano, A., Musumeci, O., Benedetti, S., Fazio, R., Bresolin, N., Daga, A., Martinuzzi, A., Bassi, M. T.
<strong>Point mutations and a large intragenic deletion in SPG11 in complicated spastic paraplegia without thin corpus callosum.</strong>
J. Med. Genet. 46: 345-351, 2009.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/19196735/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">19196735</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19196735" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1136/jmg.2008.063321" target="_blank">Full Text</a>]
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<a id="Crosby2002" class="mim-anchor"></a>
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Crosby, A. H., Proukakis, C.
<strong>Is the transportation highway the right road for hereditary spastic paraplegia? (Editorial)</strong>
Am. J. Hum. Genet. 71: 1009-1016, 2002.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12355399/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12355399</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12355399" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1086/344206" target="_blank">Full Text</a>]
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<a id="Del Bo2007" class="mim-anchor"></a>
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Del Bo, R., Di Fonzo, A., Ghezzi, S., Locatelli, F., Stevanin, G., Costa, A., Corti, S., Bresolin, N., Comi, G. P.
<strong>SPG11: a consistent clinical phenotype in a family with homozygous spatacsin truncating mutation.</strong>
Neurogenetics 8: 301-305, 2007.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/17717710/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">17717710</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17717710" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/s10048-007-0095-z" target="_blank">Full Text</a>]
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<a id="Erichsen2008" class="mim-anchor"></a>
<div class="">
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Erichsen, A. K., Stevanin, G., Denora, P., Brice, A., Tallaksen, C. M. E.
<strong>SPG11--the most common type of recessive spastic paraplegia in Norway?</strong>
Acta Neurol. Scand. Suppl. 188: 46-50, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18439221/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18439221</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18439221" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1111/j.1600-0404.2008.01031.x" target="_blank">Full Text</a>]
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<a id="Hehr2007" class="mim-anchor"></a>
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Hehr, U., Bauer, P., Winner, B., Schule, R., Olmez, A., Koehler, W., Uyanik, G., Engel, A., Lenz, D., Seibel, A., Hehr, A., Ploetz, S., and 13 others.
<strong>Long-term course and mutational spectrum of spatacsin-linked spastic paraplegia.</strong>
Ann. Neurol. 62: 656-665, 2007.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18067136/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18067136</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18067136" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/ana.21310" target="_blank">Full Text</a>]
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<a id="Lossos2006" class="mim-anchor"></a>
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Lossos, A., Stevanin, G., Meiner, V., Argov, Z., Bouslam, N., Newman, J. P., Gomori, J. M., Klebe, S., Lerer, I., Elleuch, N., Silverstein, S., Durr, A., Abramsky, O., Ben-Nariah, Z., Brice, A.
<strong>Hereditary spastic paraplegia with thin corpus callosum: reduction of the SPG11 interval and evidence for further genetic heterogeneity.</strong>
Arch. Neurol. 63: 756-760, 2006.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/16682547/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">16682547</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16682547" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1001/archneur.63.5.756" target="_blank">Full Text</a>]
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<a id="Martinez Murillo1999" class="mim-anchor"></a>
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Martinez Murillo, F., Kobayashi, H., Pegoraro, E., Galluzzi, G., Creel, G., Mariani, C., Farina, E., Ricci, E., Alfonso, G., Pauli, R. M., Hoffman, E. P.
<strong>Genetic localization of a new locus for recessive familial spastic paraparesis to 15q13-15.</strong>
Neurology 53: 50-56, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10408536/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10408536</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10408536" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1212/wnl.53.1.50" target="_blank">Full Text</a>]
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<a id="Nakamura1995" class="mim-anchor"></a>
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Nakamura, A., Izumi, K., Umehara, F., Kuriyama, M., Hokezu, Y., Nakagawa, M., Shimmyozu, K., Izumo, S., Osame, M.
<strong>Familial spastic paraplegia with mental impairment and thin corpus callosum.</strong>
J. Neurol. Sci. 131: 35-42, 1995.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/7561945/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">7561945</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7561945" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/0022-510x(95)00028-z" target="_blank">Full Text</a>]
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<a id="Olmez2006" class="mim-anchor"></a>
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Olmez, A., Uyanik, G., Ozgul. R. K., Gross, C., Cirak, S., Elibol, B., Anlar, B., Winner, B., Hehr, U., Topaloglu, H., Winkler, J.
<strong>Further clinical and genetic characterization of SPG11: hereditary spastic paraplegia with thin corpus callosum.</strong>
Neuropediatrics 37: 59-66, 2006.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/16773502/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">16773502</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16773502" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1055/s-2006-923982" target="_blank">Full Text</a>]
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<a id="Orlen2009" class="mim-anchor"></a>
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Orlen, H., Melberg, A., Raininko, R., Kumlien, E., Entesarian, M., Soderberg, P., Pahlman, M., Darin, N., Kyllerman, M., Holmberg, E., Engler, H., Eriksson, U., Dahl, N.
<strong>SPG11 mutations cause Kjellin syndrome, a hereditary spastic paraplegia with thin corpus callosum and central retinal degeneration.</strong>
Am. J. Med. Genet. 150B: 984-992, 2009.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/19194956/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">19194956</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19194956" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/ajmg.b.30928" target="_blank">Full Text</a>]
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<a id="Samaranch2008" class="mim-anchor"></a>
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Samaranch, L., Riverol, M., Masdeu, J. C., Lorenzo, E., Vidal-Taboada, J. M., Irigoyen, J., Pastor, M. A., de Castro, P., Pastor, P.
<strong>SPG11 compound mutations in spastic paraparesis with thin corpus callosum.</strong>
Neurology 71: 332-336, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18663179/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18663179</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18663179" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1212/01.wnl.0000319646.23052.d1" target="_blank">Full Text</a>]
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<a id="Shibasaki2000" class="mim-anchor"></a>
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<p class="mim-text-font">
Shibasaki, Y., Tanaka, H., Iwabuchi, K., Kawasaki, S., Kondo, H., Uekawa, K., Ueda, M., Kamiya, T., Katayama, Y., Nakamura, A., Takashima, H., Nakagawa, M., and 10 others.
<strong>Linkage of autosomal recessive hereditary spastic paraplegia with mental impairment and thin corpus callosum to chromosome 15q13-15.</strong>
Ann. Neurol. 48: 108-112, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10894224/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10894224</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10894224" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
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<a id="Sjaastad1976" class="mim-anchor"></a>
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Sjaastad, O., Berstad, J., Gjesdahl, P., Gjessing, L. R.
<strong>Homocarnosinosis. 2. A familial metabolic disorder associated with spastic paraplegia, progressive mental deficiency, and retinal pigmentation.</strong>
Acta Neurol. Scand. 53: 275-290, 1976.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/1266573/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">1266573</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1266573" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1111/j.1600-0404.1976.tb04348.x" target="_blank">Full Text</a>]
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Sjaastad, O., Blau, N., Rydning, S. L., Peters, V., Rodningen, O., Stray-Pedersen, A., Krossnes, B., Tallaksen, C., Koht, J.
<strong>Homocarnosinosis: a historical update and findings in the SPG11 gene.</strong>
Acta Neurol. Scand. 138: 245-250, 2018.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/29732542/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">29732542</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=29732542" 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/ane.12949" target="_blank">Full Text</a>]
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<a id="Stevanin2006" class="mim-anchor"></a>
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Stevanin, G., Montagna, G., Azzedine, H., Valente, E. M., Durr, A., Scarano, V., Bouslam, N., Cassandrini, D., Denora, P. S., Criscuolo, C., Belarbi, S., Orlacchio, A., and 27 others.
<strong>Spastic paraplegia with thin corpus callosum: description of 20 new families, refinement of the SPG11 locus, candidate gene analysis and evidence of genetic heterogeneity.</strong>
Neurogenetics 7: 149-156, 2006.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/16699786/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">16699786</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16699786" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/s10048-006-0044-2" target="_blank">Full Text</a>]
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<a id="Stevanin2007" class="mim-anchor"></a>
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Stevanin, G., Santorelli, F. M., Azzedine, H., Coutinho, P., Chomilier, J., Denora, P. S., Martin, E., Ouvrard-Hernandez, A.-M., Tessa, A., Bouslam, N, Lossos, A., Charles, P., and 13 others.
<strong>Mutations in SPG11, encoding spatacsin, are a major cause of spastic paraplegia with thin corpus callosum.</strong>
Nature Genet. 39: 366-372, 2007.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/17322883/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">17322883</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=17322883" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/ng1980" target="_blank">Full Text</a>]
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<a id="Ueda1998" class="mim-anchor"></a>
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Ueda, M., Katayama, Y., Kamiya, T., Mishina, M., Igarashi, H., Okubo, S., Senda, M., Iwabuchi, K., Terashi, A.
<strong>Hereditary spastic paraplegia with a thin corpus callosum and thalamic involvement in Japan.</strong>
Neurology 51: 1751-1754, 1998.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9855541/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9855541</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9855541" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1212/wnl.51.6.1751" target="_blank">Full Text</a>]
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Winner, B., Uyanik, G., Gross, C., Lange, M., Schulte-Mattler, W., Schuierer, G., Marienhagen, J., Hehr, U., Winkler, J.
<strong>Clinical progression and genetic analysis in hereditary spastic paraplegia with thin corpus callosum in spastic gait gene 11 (SPG11).</strong>
Arch. Neurol. 61: 117-121, 2004.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/14732628/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">14732628</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=14732628" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1001/archneur.61.1.117" target="_blank">Full Text</a>]
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Carol A. Bocchini - updated : 03/17/2023
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Cassandra L. Kniffin - updated : 6/1/2010<br>Cassandra L. Kniffin - updated : 1/25/2010<br>Cassandra L. Kniffin - updated : 6/16/2009<br>Cassandra L. Kniffin - updated : 3/25/2009<br>Cassandra L. Kniffin - updated : 1/6/2009<br>Cassandra L. Kniffin - updated : 9/30/2008<br>Cassandra L. Kniffin - updated : 3/31/2008<br>Cassandra L. Kniffin - updated : 11/27/2007<br>Victor A. McKusick - updated : 4/4/2007<br>Cassandra L. Kniffin - updated : 2/6/2007<br>Cassandra L. Kniffin - updated : 8/28/2006<br>Cassandra L. Kniffin - updated : 8/31/2004<br>Cassandra L. Kniffin - updated : 5/24/2004
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Victor A. McKusick : 12/21/1999
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alopez : 11/17/2023
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carol : 03/23/2023<br>carol : 03/22/2023<br>carol : 03/17/2023<br>carol : 05/17/2019<br>carol : 12/01/2015<br>ckniffin : 12/1/2015<br>alopez : 10/2/2015<br>ckniffin : 9/29/2015<br>carol : 3/7/2014<br>terry : 2/1/2012<br>carol : 1/4/2012<br>ckniffin : 1/4/2012<br>carol : 11/24/2010<br>wwang : 6/2/2010<br>ckniffin : 6/1/2010<br>wwang : 1/27/2010<br>ckniffin : 1/25/2010<br>wwang : 6/26/2009<br>ckniffin : 6/16/2009<br>wwang : 4/10/2009<br>ckniffin : 3/25/2009<br>wwang : 1/13/2009<br>ckniffin : 1/6/2009<br>wwang : 10/3/2008<br>ckniffin : 9/30/2008<br>wwang : 8/21/2008<br>wwang : 4/7/2008<br>ckniffin : 3/31/2008<br>wwang : 12/4/2007<br>ckniffin : 11/27/2007<br>alopez : 4/5/2007<br>terry : 4/4/2007<br>wwang : 2/8/2007<br>ckniffin : 2/6/2007<br>wwang : 9/7/2006<br>ckniffin : 8/28/2006<br>carol : 9/7/2004<br>ckniffin : 8/31/2004<br>tkritzer : 5/28/2004<br>ckniffin : 5/24/2004<br>mgross : 3/18/2004<br>ckniffin : 11/14/2002<br>ckniffin : 10/4/2002<br>carol : 8/28/2000<br>alopez : 1/18/2000<br>alopez : 12/21/1999
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<strong>#</strong> 604360
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SPASTIC PARAPLEGIA 11, AUTOSOMAL RECESSIVE; SPG11
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<em>Alternative titles; symbols</em>
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SPASTIC PARAPLEGIA, AUTOSOMAL RECESSIVE, WITH MENTAL IMPAIRMENT AND THIN CORPUS CALLOSUM<br />
SPASTIC PARAPLEGIA, AUTOSOMAL RECESSIVE, COMPLICATED, WITH THIN CORPUS CALLOSUM<br />
HSP-TCC
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<strong>ORPHA:</strong> 2822; &nbsp;
<strong>DO:</strong> 0110764; &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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15q21.1
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Spastic paraplegia 11, autosomal recessive
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604360
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Autosomal recessive
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3
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SPG11
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610844
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because autosomal recessive spastic paraplegia-11 (SPG11) is caused by homozygous or compound heterozygous mutation in the gene encoding spatacsin (SPG11; 610844) on chromosome 15q21.</p><p>Biallelic mutation in the SPG11 gene can also cause autosomal recessive juvenile-onset amyotrophic lateral sclerosis-5 (ALS5; 602099) and autosomal recessive Charcot-Marie-Tooth disease type 2X (CMT2X; 616668), different neurodegenerative disorders with overlapping features.</p>
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<strong>Description</strong>
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<p>Hereditary spastic paraplegia (SPG or HSP) is characterized by progressive weakness and spasticity of the lower limbs due to degeneration of corticospinal axons. SPG11 is a form of complicated SPG, in that it has neurologic features in addition to spasticity.</p><p>For a discussion of genetic heterogeneity of autosomal recessive SPG, see SPG5A (270800).</p>
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<strong>Clinical Features</strong>
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<p>Nakamura et al. (1995) reported 2 families with autosomal recessive hereditary spastic paraplegia, mental impairment, and thin corpus callosum. In the first family, 3 affected brothers had onset in the second decade of gait disturbance resulting in wheelchair use by age 21 years. All 3 patients had an IQ less than 60. Other features included lower limb spasticity, slight ataxia, and mild sensory impairment. Three sisters from a second family, in which the parents were first cousins, had similar features to the affected brothers in the first family. Brain CT and MRI of 4 patients showed mild frontal and temporal cortical atrophy, mild ventricular dilatation, and widening of the frontal longitudinal fissure. All patients had a markedly thin corpus callosum which was not consistent with a degenerative process and was distinct from congenital agenesis (ACC; 217990) and partial agenesis (e.g., 304100) of the corpus callosum. Peripheral nerve biopsies showed decreased numbers of myelinated fibers, axonal degeneration, and abnormal Schwann cell inclusions. </p><p>Ueda et al. (1998) reported 2 Japanese sibs with SPG11 who showed thalamic glucose hypometabolism on positron emission tomography (PET) scan. </p><p>Winner et al. (2004) reported 2 German sisters with SPG11. The more severely affected sister had onset at age 24 years of a slowly progressive spastic paraplegia with increasing urinary urge incontinence and slow cognitive decline. Both sisters were obese, whereas no other family members were overweight. Serial MRIs showed a tendency toward progressive atrophy of the rostral corpus callosum, as well as symmetric white matter lesions. Transcranial stimulation showed a lack of transcallosal inhibition, and PET scan showed cortical and thalamic hypometabolism that decreased further within 4 years. Combined axonal loss and demyelinating sensory neuropathy were also present. No mutations were identified in the SLC12A6 gene (604878), which is mutated in agenesis of the corpus callosum with peripheral neuropathy (ACCPN; 218000). </p><p>Casali et al. (2004) reported 18 patients from 12 Italian families with HSP-TCC; 2 of the families were consanguineous. The clinical phenotype was homogeneous, with gait difficulties beginning at a median age of 13 years (range 4 to 20 years) and progressing to loss of ambulation within approximately 10 years. Neurologic features included spasticity, pyramidal signs, hyperreflexia, and severe mental deterioration. MRI studies showed thin corpus callosum in all patients and periventricular white matter changes in 15 of 18 patients. </p><p>Lossos et al. (2006) reported 2 consanguineous Arab-Israeli families in which 2 sibs in each family had autosomal recessive HSP-TCC. All patients had onset of clinical symptoms during the second decade of life, with cognitive decline preceding gait disturbance by 2 to 5 years. Cardinal signs included pseudobulbar dysarthria, spastic paraparesis with lower limb hyperreflexia, upper limb hyperreflexia, extensor plantar responses, and distal amyotrophy. Brain imaging of 1 affected sib from each family showed thin corpus callosum, white matter abnormalities, and mild frontal atrophy. Two of 3 patients examined had mild axonal peripheral neuropathy. Two affected sibs in 1 family were obese. </p><p>Stevanin et al. (2007) reviewed the features of autosomal recessive hereditary spastic paraplegia with thin corpus callosum (ARHSP-TCC). Cognitive impairment is first noticed in childhood and progresses insidiously to severe functional disability of a frontal type over a period of 10-20 years (Nakamura et al., 1995; Winner et al., 2004). Some affected individuals develop a pseudobulbar involvement, with dysarthria, dysphagia, and upper limb spasticity, associated with bladder dysfunction and signs of predominantly axonal, motor, or sensorimotor peripheral neuropathy. PET scan shows cortical and thalamic glucose hypometabolism. MRI shows thin corpus callosum that predominates in the rostral third, with hyperintensities in periventricular white matter and cerebral cortical atrophy predominating in the frontal region. </p><p>Del Bo et al. (2007) reported 27-year-old Italian opposite-sex dizygotic twins with autosomal recessive SPG11. The sibs had onset of ataxia and cognitive impairment at ages 12 and 15 years, respectively. The disorder progressed rapidly, leading to spastic paraplegia, dysarthria, and peripheral neuropathy. Both were wheelchair-bound in their early twenties. Brain MRI showed thin corpus callosum and cortical atrophy in both sibs. Both parents were healthy and came from the same small town in Sicily but denied consanguinity. Genetic analysis identified a homozygous mutation in the SPG11 gene (733delAT; 610844.0004). </p><p>Hehr et al. (2007) reported clinical details of 18 patients from 9 families with genetically confirmed SPG11. Several of the families had previously been reported by Olmez et al. (2006). The mean age at onset of walking impairment was 16 years (range, 8 to 31). Patients had predominantly lower limb paresis with proximal spasticity and hyperreflexia with extensor plantar responses. The gait was slow, spastic, and slightly ataxic. Dysarthria was noted in 85% of patients, and amyotrophy of the hypothenar and thenar muscles was commonly present. General mental impairment of varying degrees was present in 83%, and was associated with hypometabolism of the frontal cortex and thalamus on PET scan. MRI performed in at least 1 member of each family showed rostral atrophy of the corpus callosum and supratentorial white matter changes. Peripheral nerve biopsy showed hypomyelination of large fibers and loss of unmyelinated fibers, consistent with a clinical picture of mixed axonal and demyelinating polyneuropathy. Evidence also suggested disturbed axonal transport. The long-term course of 1 patient followed for 10 years showed progression of the disorder. Hehr et al. (2007) concluded that the disease process in SPG11 affects the corticospinal tract, major corticocortical connections via the corpus callosum, and the peripheral nervous system, and likely involves impaired axonal transport. </p><p>Samaranch et al. (2008) reported 4 Spanish patients with SPG11 confirmed by genetic analysis. All had some degree of mental retardation and a thin corpus callosum on brain imaging. The 3 older individuals had spastic paraparesis since late childhood and decreased brain metabolism on PET studies, predominantly in the thalamus and paracentral cortex of the hemispheres. Samaranch et al. (2008) postulated that the thalamic dysfunction may contribute to impaired attention. </p><p><strong><em>Clinical Variability</em></strong></p><p>
Crimella et al. (2009) identified homozygous or compound heterozygous mutations in the SPG11 gene in 4 (40%) of 10 patients with SPG and thin corpus callosum and in 3 (8.5%) of 35 patients with SPG without thin corpus callosum. The molecular findings were consistent with a loss-of-function mechanism. </p><p>Orlen et al. (2009) reported 5 patients from 4 unrelated families with 5 truncating mutations in the SPG11 gene (see, e.g., 610844.0007-610844.0009). Two patients had delayed psychomotor development, 2 had onset at ages 3 and 4 years, respectively, and 1 had onset at age 14 years. Four patients were wheelchair-bound in the third or fourth decades; the fifth patient was only 14 at the time of the study and had a milder phenotype overall. The 4 older patients (ages 29 to 48) had lower limb spasticity, hyperreflexia with extensor plantar responses, sphincter disturbances, amyotrophy of the hands or calves, thin corpus callosum, cerebral atrophy, and periventricular white matter changes. All patients had some degree of cognitive dysfunction or mental retardation. Three were obese. An unusual finding in the 4 older patients was progressive central retinal degeneration, which was reminiscent of the phenotype for Kjellin syndrome (SPG15; 270700). Orlen et al. (2009) concluded that central retinal degeneration may be a previously unrecognized late-onset feature of this disorder. </p>
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<strong>Mapping</strong>
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<p>Martinez Murillo et al. (1999) performed genetic linkage analysis in 8 recessive familial spastic paraparesis families from America and Europe. The known recessive SPG loci, SPG5A, SPG7 (607259), as well as X-linked types of spastic paraplegia, SPG1 (303350) and SPG2 (312920), were excluded in 7 families; 1 family showed data consistent with linkage to the chromosome 8 locus. The other families showed positive lod scores for markers on 15q. The maximum multipoint combined lod score for non-chromosome 8 families was 3.14 for markers D15S1007, D15S971, D15S118, and D15S1012, at a distance of 6.41 cM from the marker D15S1007, in a region between D15S971 and D15S118. The data indicated a new locus for autosomal recessive familial spastic paraparesis on 15q13-q15, and the authors suggested that this may be a common form. Two of the 7 families linked to chromosome 15q had a complicated form of SPG with attenuation of the corpus callosum and mental deterioration; 3 families had SPG and pes cavus, but no abnormalities of the corpus callosum, and 2 families had a pure form of HSP. </p><p>In 10 of 13 Japanese families with complicated HSP with mental impairment and thin corpus callosum, Shibasaki et al. (2000) found linkage to chromosome 15q13-q15 (maximum multipoint lod score of 9.68 at a position 1.2 cM telomeric from D15S994 to D15S659). </p><p>Casali et al. (2004) demonstrated linkage to 15q13-q15 in 5 of 12 Italian families with HSP-TCC (maximum cumulative lod score of 3.35 at marker D15S659). Haplotype analysis excluded a founder effect. The absence of strong linkage to the SPG11 locus in 7 families indicated genetic heterogeneity. </p><p>By linkage and haplotype analysis of 2 consanguineous Arab-Israeli families with SPG and thin corpus callosum, Lossos et al. (2006) refined the candidate SPG11 locus to a 13-Mb (17-cM) interval on chromosome 15q13-q15 between markers D15S971 and D15S143 (maximum multipoint lod scores of 3.1 and 2.5 for the 2 families, respectively). A third consanguineous Arab-Israeli family with a similar phenotype was excluded from the SPG11 locus, indicating genetic heterogeneity. </p><p>Stevanin et al. (2006) reported 6 Mediterranean families with autosomal recessive HSP-TCC showing linkage to the SPG11 locus (positive lod scores at marker D15S659). Haplotype reconstruction allowed refinement of the locus to a 6-cM interval. Genetic analysis excluded mutations in the MAP1A (600178) and SEMA6D (609295) genes in the index patients from 5 families showing linkage to SPG11. Linkage to the SPG11 locus was excluded in 4 additional families with HSP-TCC, indicating genetic heterogeneity. </p><p>Stevanin et al. (2007) genotyped 12 families with ARHSP-TCC using 34 microsatellite markers in the candidate interval for SPG11 and the adjacent and overlapping loci for SPG21 (248900) and agenesis of corpus callosum with polyneuropathy (218000). Maximal positive multipoint lod scores ranging from 0.60 to 3.85, which corresponded to the maximal expected values in the pedigrees, were obtained in 10 families in the SPG11 interval. The combined multipoint lod score reached the value of 17.32 for these families. Linkage was not conclusive in the 2 remaining kindreds. Haplotype reconstructions in 2 consanguineous families with strong evidence for linkage to SPG11 further restricted the region most likely to contain the responsible gene to a 3.2-cM homozygous region between D15S778 and D15S659. This interval contains approximately 40 genes. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Inheritance</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>The transmission pattern of SPG11 in the families reported by Stevanin et al. (2007) was consistent with autosomal recessive inheritance. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Stevanin et al. (2007) analyzed 18 genes in the 3.2-cM SPG11 candidate interval by direct sequencing of all exons and their splicing sites, and identified 10 mutations in the KIAA1840 gene (610844) in 11 families. The KIAA1840 gene, encoding spatacsin, is expressed ubiquitously in the nervous system but most prominently in the cerebellum, cerebral cortex, hippocampus, and pineal gland. The mutations were either nonsense or insertions or deletions leading to a frameshift, suggesting a loss-of-function mechanism. All mutations were in the homozygous state except in 2 kindreds, in which affected individuals were compound heterozygous. Only 2 mutations were found in more than 1 pedigree: R2034X (610844.0001) in 3 consanguineous North African kindreds, and a 5-bp deletion in exon 3 (610844.0002) in 2 Portuguese families. </p><p>The SPG11 gene appears to be the one most frequently responsible for ARHSP-TCC. Only a single family (8%) in the cohort studied by Stevanin et al. (2007) did not have a mutation in SPG11, indicating that there is at least one other responsible gene. On the other hand, whether the SPG11 gene accounts for other clinical phenotypes of ARHSP remained to be determined. </p><p>Spastic paraplegias are believed to result from a dying back of exons. Mitochondrial metabolism, endosomal and trans-Golgi trafficking and axonal transport have been implicated in several HSPs (Crosby and Proukakis, 2002). Although the function of spatacsin remains unknown, the experimental evidence that it is expressed in all tissues and is highly conserved among species suggests that it has an essential biologic function. The possible presence of at least one transmembrane domain suggested that spatacsin may be a receptor or transporter. </p><p>In 18 patients from 9 unrelated families with SPG11, Hehr et al. (2007) identified 11 different mutations, including 10 novel mutations, in the SPG11 gene (see, e.g., 610844.0005-610844.0006) in the homozygous or compound heterozygous state. Four of the families were consanguineous, including 3 Turkish families initially reported by Olmez et al. (2006). Mutations were distributed throughout the entire spatacsin gene without obvious clustering. </p><p>Bauer et al. (2009) used high-resolution comparative genomic hybridization (HRCGH) to identify deletions in the SPG11 gene in 3 patients with SPG11 in whom only 1 mutant SPG11 allele had been identified by gene sequencing. HRCGH analysis suggested heterozygous genomic deletion in all 3 patients; however, quantitative PCR confirmed an 8.23-kb deletion in only 1 patient. The 8.23-kb deletion resulted in loss of exons 31 to 34 and was also found in the proband's affected sister and their unaffected father. The clinical features in the brother and sister did not differ from those of patients with point mutations. </p><p>Sjaastad et al. (2018) identified a homozygous splice site mutation in the SPG11 gene (c.2316+1G-A) in the Norwegian family (family 1) originally reported by Sjaastad et al. (1976) in which 2 brothers and a sister had progressive spastic paraplegia, impaired intellectual development, retinal pigmentation, and levels of homocarnosine 20 times normal (see 236130). The SPG phenotype in the family correlated with SPG11, and the elevated levels of homocarnosine did not appear to be a biomarker for SPG11 as it has not been found in other patients with SPG11. The c.2316+1G-A mutation had previously been identified by Erichsen et al. (2008) in a Norwegian man with SPG11 who had no family history of the disorder. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Population Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Boukhris et al. (2009) identified a molecular basis for hereditary spastic paraplegia in 13 (34.2%) of 38 unrelated families from southern Tunisia with the disorder. The most common forms of SPG were SPG11 in 7 (18.4%) families and SPG15 (270700) in 4 (10.5%) families. SPG4 (182601) and SPG5 (270800) were present in 1 family each. </p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>REFERENCES</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<ol>
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Erichsen, A. K., Stevanin, G., Denora, P., Brice, A., Tallaksen, C. M. E.
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Hehr, U., Bauer, P., Winner, B., Schule, R., Olmez, A., Koehler, W., Uyanik, G., Engel, A., Lenz, D., Seibel, A., Hehr, A., Ploetz, S., and 13 others.
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Lossos, A., Stevanin, G., Meiner, V., Argov, Z., Bouslam, N., Newman, J. P., Gomori, J. M., Klebe, S., Lerer, I., Elleuch, N., Silverstein, S., Durr, A., Abramsky, O., Ben-Nariah, Z., Brice, A.
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[PubMed: 16682547]
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Martinez Murillo, F., Kobayashi, H., Pegoraro, E., Galluzzi, G., Creel, G., Mariani, C., Farina, E., Ricci, E., Alfonso, G., Pauli, R. M., Hoffman, E. P.
<strong>Genetic localization of a new locus for recessive familial spastic paraparesis to 15q13-15.</strong>
Neurology 53: 50-56, 1999.
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Nakamura, A., Izumi, K., Umehara, F., Kuriyama, M., Hokezu, Y., Nakagawa, M., Shimmyozu, K., Izumo, S., Osame, M.
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Olmez, A., Uyanik, G., Ozgul. R. K., Gross, C., Cirak, S., Elibol, B., Anlar, B., Winner, B., Hehr, U., Topaloglu, H., Winkler, J.
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Neuropediatrics 37: 59-66, 2006.
[PubMed: 16773502]
[Full Text: https://doi.org/10.1055/s-2006-923982]
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Orlen, H., Melberg, A., Raininko, R., Kumlien, E., Entesarian, M., Soderberg, P., Pahlman, M., Darin, N., Kyllerman, M., Holmberg, E., Engler, H., Eriksson, U., Dahl, N.
<strong>SPG11 mutations cause Kjellin syndrome, a hereditary spastic paraplegia with thin corpus callosum and central retinal degeneration.</strong>
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Samaranch, L., Riverol, M., Masdeu, J. C., Lorenzo, E., Vidal-Taboada, J. M., Irigoyen, J., Pastor, M. A., de Castro, P., Pastor, P.
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Shibasaki, Y., Tanaka, H., Iwabuchi, K., Kawasaki, S., Kondo, H., Uekawa, K., Ueda, M., Kamiya, T., Katayama, Y., Nakamura, A., Takashima, H., Nakagawa, M., and 10 others.
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</p>
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Stevanin, G., Montagna, G., Azzedine, H., Valente, E. M., Durr, A., Scarano, V., Bouslam, N., Cassandrini, D., Denora, P. S., Criscuolo, C., Belarbi, S., Orlacchio, A., and 27 others.
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[Full Text: https://doi.org/10.1007/s10048-006-0044-2]
</p>
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Stevanin, G., Santorelli, F. M., Azzedine, H., Coutinho, P., Chomilier, J., Denora, P. S., Martin, E., Ouvrard-Hernandez, A.-M., Tessa, A., Bouslam, N, Lossos, A., Charles, P., and 13 others.
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</p>
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<p class="mim-text-font">
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</p>
</li>
<li>
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Winner, B., Uyanik, G., Gross, C., Lange, M., Schulte-Mattler, W., Schuierer, G., Marienhagen, J., Hehr, U., Winkler, J.
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</p>
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Ada Hamosh, MD, MPH <br />
Scientific Director, OMIM <br />
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