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Entry
- #275900 - SPASTIC PARAPLEGIA 20, AUTOSOMAL RECESSIVE; SPG20
- OMIM
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<span class="h4">#275900</span>
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<strong>Table of Contents</strong>
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<a href="#title"><strong>Title</strong></a>
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<a href="#phenotypeMap"><strong>Phenotype-Gene Relationships</strong></a>
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<a href="/clinicalSynopsis/275900"><strong>Clinical Synopsis</strong></a>
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<a href="/phenotypicSeries/PS303350"> <strong>Phenotypic Series</strong> </a>
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<a href="#clinicalFeatures">Clinical Features</a>
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<a href="#inheritance">Inheritance</a>
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<a href="#mapping">Mapping</a>
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<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#seeAlso"><strong>See Also</strong></a>
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<a href="#references"><strong>References</strong></a>
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<a href="#contributors"><strong>Contributors</strong></a>
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<div><a href="http://www.informatics.jax.org/disease/275900" class="mim-tip-hint" title="Phenotypes, alleles, and disease models from Mouse Genome Informatics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MGI Mouse Phenotype', 'domain': 'informatics.jax.org'})">MGI Mouse Phenotype</a></div>
<div><a href="https://wormbase.org/resources/disease/DOID:0050886" class="mim-tip-hint" title="Database of the biology and genome of Caenorhabditis elegans and related nematodes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Wormbase Disease Ontology', 'domain': 'wormbase.org'})">Wormbase Disease Ontology</a></div>
</div>
</div>
</div>
</div>
</div>
</div>
<span>
<span class="mim-tip-bottom" qtip_title="<strong>Looking for this gene or this phenotype in other resources?</strong>" qtip_text="Select a related resource from the dropdown menu and click for a targeted link to information directly relevant.">
&nbsp;
</span>
</span>
</div>
<div class="col-lg-8 col-lg-pull-2 col-md-8 col-md-pull-2 col-sm-8 col-sm-pull-2 col-xs-12">
<div>
<a id="title" class="mim-anchor"></a>
<div>
<a id="number" class="mim-anchor"></a>
<div class="text-right">
<a href="#" class="mim-tip-icd" qtip_title="<strong>ICD+</strong>" qtip_text="
<strong>SNOMEDCT:</strong> 230264003<br />
<strong>ORPHA:</strong> 101000<br />
<strong>DO:</strong> 0050886<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>
275900
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
SPASTIC PARAPLEGIA 20, AUTOSOMAL RECESSIVE; SPG20
</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">
TROYER SYNDROME<br />
SPASTIC PARAPARESIS, CHILDHOOD-ONSET, WITH DISTAL MUSCLE WASTING<br />
SPASTIC PARAPLEGIA, AUTOSOMAL RECESSIVE, TROYER TYPE
</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/13/97?start=-3&limit=10&highlight=97">
13q13.3
</a>
</span>
</td>
<td>
<span class="mim-font">
Troyer syndrome
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/275900"> 275900 </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">
SPART
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607111"> 607111 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/275900" 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/275900" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/275900" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
</ul>
</div>
<span class="glyphicon glyphicon-question-sign mim-tip-hint" title="OMIM PheneGene graphics depict relationships between phenotypes, groups of related phenotypes (Phenotypic Series), and genes.<br /><a href='/static/omim/pdf/OMIM_Graphics.pdf' target='_blank'>A quick reference overview and guide (PDF)</a>"></span>
<div>
<p />
</div>
<div id="mimClinicalSynopsisFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small" style="margin: 5px">
<div>
<div>
<span class="h5 mim-font">
<strong> INHERITANCE </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Autosomal recessive <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/258211005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">258211005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0441748&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0441748</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> GROWTH </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Height </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Short stature <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/422065006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">422065006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237836003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237836003</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237837007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237837007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/E34.31" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">E34.31</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/R62.52" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R62.52</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/783.43" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">783.43</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0349588&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0349588</a>, <a href="https://bioportal.bioontology.org/search?q=C0013336&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0013336</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003510" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003510</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0004322" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004322</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0004322" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004322</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<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> Face </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Overgrowth of the maxilla <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/M26.01" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M26.01</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/524.01" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">524.01</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2227090&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2227090</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0430028" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0430028</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Eyes </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Hypertelorism <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/22006008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">22006008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/Q75.2" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">Q75.2</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/376.41" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">376.41</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0020534&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0020534</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000316" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000316</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000316" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000316</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=593a4d488f00bb03351a0ddffaf4ac9a" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Eyes,Widely_Spaced-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=593a4d488f00bb03351a0ddffaf4ac9a&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Mouth </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Tongue dyspraxia <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3279460&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3279460</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> Spine </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Kyphoscoliosis <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/405771009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">405771009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/405772002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">405772002</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/405773007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">405773007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/M41" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M41</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0600033&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0600033</a>, <a href="https://bioportal.bioontology.org/search?q=C0575158&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0575158</a>, <a href="https://bioportal.bioontology.org/search?q=C0345392&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0345392</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002751" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002751</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0008453" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008453</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002751" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002751</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Limbs </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Contractures <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/57048009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">57048009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/55033002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">55033002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/M62.40" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M62.40</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/M62.4" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M62.4</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0009917&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0009917</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Hands </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Hyperextensible hand joints <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1856877&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1856877</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0005639" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0005639</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0005639" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0005639</a>]</span><br /> -
Brachydactyly <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/43476002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">43476002</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0221357&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0221357</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001156" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001156</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001156" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001156</a>]</span><br /> -
Clinodactyly <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/17268007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">17268007</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4551485&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4551485</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0030084" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0030084</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0030084" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0030084</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=6c6553591f42fb5585fec835d3e3bab3" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Clinodactyly-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=6c6553591f42fb5585fec835d3e3bab3&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 /> -
Camptodactyly <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/29271008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">29271008</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0221369&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0221369</a>, <a href="https://bioportal.bioontology.org/search?q=C0685409&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0685409</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0012385" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0012385</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0012385" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0012385</a>]</span> <a href="https://elementsofmorphology.nih.gov/index.cgi?tid=56cd131f7e4abed85662f1f7e23b10a2" target="_blank" class="small mim-tip-eom" title="&lt;img src=&quot;https://elementsofmorphology.nih.gov/images/terms/Camptodactyly-large-small.jpg&quot;&gt; &lt;br/&gt;Further Information: &lt;a href=&quot;https://elementsofmorphology.nih.gov/index.cgi?tid=56cd131f7e4abed85662f1f7e23b10a2&quot target=&quot;_blank&quot onclick=&quot;gtag(\'event\', \'mim_outbound\', {\'name\': \'EOM\', \'domain\': \'elementsofmorphology.nih.gov\'})&quot;&gt;Elements of Morphology&lt;/a&gt;"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></a><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> 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 /> -
Hammertoes <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/122481008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">122481008</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1136179&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1136179</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001765" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001765</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001765" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001765</a>]</span><br /> -
Small feet <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/299461003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">299461003</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1848673&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1848673</a>, <a href="https://bioportal.bioontology.org/search?q=C0576224&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0576224</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001773" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001773</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001773" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001773</a>]</span><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">
- Distal amyotrophy, especially of hands and feet <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1848736&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1848736</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003693" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003693</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">
- Delayed motor development <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1854301&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1854301</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001270" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001270</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001270" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001270</a>]</span><br /> -
Delayed cognitive development <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/224958001" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">224958001</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/F88" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">F88</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0557874&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0557874</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001263" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001263</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001263" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001263</a>]</span><br /> -
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 /> -
Upper limb spasticity <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/394680009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">394680009</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1273957&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1273957</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0006986" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0006986</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0006986" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0006986</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 /> -
Walking difficulties <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/719232003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">719232003</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/719.7" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">719.7</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0311394&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0311394</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002355" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002355</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 /> -
Dysmetria <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/32566006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">32566006</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0234162&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0234162</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001310" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001310</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001310" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001310</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 /> -
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 /> -
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 /> -
Drooling <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/62718007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">62718007</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0013132&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0013132</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002307" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002307</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0003781" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003781</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002307" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002307</a>]</span><br /> -
Cerebellar signs <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0742038&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0742038</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001317" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001317</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001317" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001317</a>]</span><br /> -
Cerebellar atrophy <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0740279&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0740279</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001272" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001272</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001272" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001272</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> Behavioral Psychiatric Manifestations </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Emotional lability (variable) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3279458&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3279458</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/18963009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">18963009</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R45.86" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R45.86</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/799.24" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">799.24</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000712" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000712</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> MISCELLANEOUS </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Onset in early childhood<br /> -
Genetic heterogeneity, see SPG5A (<a href="/entry/270800">270800</a>) for overview of recessive SPGs<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 spartin gene (SPG20, <a href="/entry/607111#0001">607111.0001</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>
<td>
<span class="mim-font">
<a href="/entry/159460"> 159460 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/19/824?start=-3&limit=10&highlight=824"> 19q13.32 </a>
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<span class="mim-font">
<a href="/entry/604805"> Spastic paraplegia 12, autosomal dominant </a>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</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/604805"> 604805 </a>
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<span class="mim-font">
<a href="/entry/603183"> RTN2 </a>
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<span class="mim-font">
<a href="/entry/603183"> 603183 </a>
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<span class="mim-font">
<a href="/geneMap/19/961?start=-3&limit=10&highlight=961"> 19q13.33 </a>
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<span class="mim-font">
<a href="/entry/616282"> ?Spastic paraplegia 73, autosomal dominant </a>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</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/616282"> 616282 </a>
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<span class="mim-font">
<a href="/entry/608846"> CPT1C </a>
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<span class="mim-font">
<a href="/entry/608846"> 608846 </a>
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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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<a href="/entry/619621"> 619621 </a>
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<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>
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<span class="mim-font">
<a href="/geneMap/X/532?start=-3&limit=10&highlight=532"> Xq22.2 </a>
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<span class="mim-font">
<a href="/entry/312920"> Spastic paraplegia 2, X-linked </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="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<span class="mim-font">
<a href="/entry/312920"> 312920 </a>
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<span class="mim-font">
<a href="/entry/300401"> PLP1 </a>
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<span class="mim-font">
<a href="/entry/300401"> 300401 </a>
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<span class="mim-font">
<a href="/geneMap/X/598?start=-3&limit=10&highlight=598"> Xq24-q25 </a>
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<span class="mim-font">
<a href="/entry/300750"> Spastic paraplegia 34, X-linked </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/300750"> 300750 </a>
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<span class="mim-font">
<a href="/entry/300750"> SPG34 </a>
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<span class="mim-font">
<a href="/entry/300750"> 300750 </a>
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<span class="mim-font">
<a href="/geneMap/X/842?start=-3&limit=10&highlight=842"> Xq28 </a>
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<span class="mim-font">
<a href="/entry/303350"> MASA syndrome </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="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<span class="mim-font">
<a href="/entry/303350"> 303350 </a>
</span>
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<span class="mim-font">
<a href="/entry/308840"> L1CAM </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/308840"> 308840 </a>
</span>
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<span class="mim-font">
Not Mapped
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<span class="mim-font">
<a href="/entry/610244"> Spastic paraplegia 33, autosomal dominant </a>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>
</span>
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<span class="mim-font">
</span>
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<span class="mim-font">
<a href="/entry/610244"> 610244 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/610244"> SPG33 </a>
</span>
</td>
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<span class="mim-font">
<a href="/entry/610244"> 610244 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
<div class="text-right small">
<a href="#mimPhenotypicSeriesFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
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<div>
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<a id="text" class="mim-anchor"></a>
<h4 href="#mimTextFold" id="mimTextToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimTextToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
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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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</h4>
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<p>A number sign (#) is used with this entry because of evidence that autosomal recessive spastic paraplegia-20, also known as Troyer syndrome, is caused by homozygous mutation in the SPG20 gene, encoding spartin (<a href="/entry/607111">607111</a>), on chromosome 13q13. SPG20 is a form of complicated SPG.</p><p>For a discussion of genetic heterogeneity of autosomal recessive SPG, see SPG5A (<a href="/entry/270800">270800</a>).</p>
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<div>
<a id="clinicalFeatures" class="mim-anchor"></a>
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<strong>Clinical Features</strong>
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<p>In an Amish group in Ohio, <a href="#3" class="mim-tip-reference" title="Cross, H. E., McKusick, V. A. &lt;strong&gt;The Troyer syndrome: a recessive form of spastic paraplegia with distal muscle wasting.&lt;/strong&gt; Arch. Neurol. 16: 473-485, 1967.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/6022528/&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;6022528&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.1967.00470230025003&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="6022528">Cross and McKusick (1967)</a> observed 20 cases of spastic paraplegia with distal muscle wasting, and designated it Troyer syndrome for the surname of many of the affected persons. The disorder has its onset in early childhood with dysarthria, distal muscle wasting, and difficulty in learning to walk. Lower limb spasticity and contractures usually make walking impossible by the third or fourth decade. Drooling and mild cerebellar signs occur in some. All have weakness and atrophy of thenar, hypothenar, and dorsal interosseous muscles. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6022528" 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="Bakowska, J. C., Wang, H., Xin, B., Sumner, C. J., Blackstone, C. &lt;strong&gt;Lack of spartin protein in Troyer syndrome: a loss-of-function disease mechanism?&lt;/strong&gt; Arch. Neurol. 65: 520-524, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18413476/&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;18413476&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.65.4.520&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="18413476">Bakowska et al. (2008)</a> reported an Amish brother and sister from Ohio with Troyer syndrome. Both showed delayed motor and cognitive development and developed a progressive deterioration in gait and speech during childhood. Physical exam showed short stature, spastic dysarthria, mild pyramidal weakness in the lower extremities, distal amyotrophy, and hyperreflexia of the lower limbs. Skeletal examination in both sibs was notable for kyphoscoliosis, loss of teeth, pes cavus, small feet, and hyperextensible joints of the hands. The brother had severe pectus excavatum. Gait was wide-based and spastic; the brother ambulated with difficulty and required assistance, whereas the sister was wheelchair-bound. Both had occasional inappropriate euphoria or crying, consistent with emotional lability. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18413476" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#4" class="mim-tip-reference" title="Manzini, M. C., Rajab, A., Maynard, T. M., Mochida, G. H., Tan, W.-H., Nasir, R., Hill, R. S., Gleason, D., Al Saffar, M., Partlow, J. N., Barry, B. J., Vernon, M., LaMantia, A.-S., Walsh, C. A. &lt;strong&gt;Developmental and degenerative features in a complicated spastic paraplegia.&lt;/strong&gt; Ann. Neurol. 67: 516-525, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20437587/&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;20437587&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=20437587[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.21923&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="20437587">Manzini et al. (2010)</a> reported a large Omani kindred with SPG20. All affected individuals presented with short stature and dysarthria, and showed delayed motor and cognitive development. The main features included spastic gait, hyperreflexia, and dysmetria of the upper limbs. Other findings included hypertelorism, overgrowth of the maxilla, brachydactyly, clinodactyly, camptodactyly, pes cavus, tightening of the heel cords, hammer toes, and ankle clonus. Brain MRI showed atrophy of the cerebellar vermis, mild white matter volume loss, and periventricular white matter changes suggestive of gliosis. Although the patients were young, there appeared to be progression of the disorder. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20437587" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#7" class="mim-tip-reference" title="Tawamie, H., Wohlleber, E., Uebe, S., Schmal, C., Nothen, M. M., Jamra, R. A. &lt;strong&gt;Recurrent null mutation in SPG20 leads to Troyer syndrome.&lt;/strong&gt; Molec. Cell. Probes 29: 315-318, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/26003402/&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;26003402&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.mcp.2015.05.006&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="26003402">Tawamie et al. (2015)</a> reported 2 sibs, born of consanguineous Turkish parents, with complicated spastic paraplegia. The patients were 26 and 17 years of age at the time of the report. The older sister had delayed psychomotor development in infancy. At age 5 years, she had overall growth retardation, generalized hypotonia, and joint hypermobility. As a teenager and young adult, she had muscle weakness and atrophy of the upper extremities, hoarse voice, high-arched feet, and hyperreflexia of the lower limbs. Skeletal abnormalities included low-set dysmorphic thumbs and clinodactyly with mild skeletal abnormalities of the hand. She developed psychiatric disturbances, including anxiety, panic attacks, hallucinations, psychosis, and suicidal ideation; her IQ was 46. Her brother had developmental delay, overall growth retardation, hypotonia with muscle atrophy, hyperextensible joints, ataxic gait, and slurred speech. Both patients had mild dysmorphic features, including prominent nose, raised nostrils, epicanthus, downslanting palpebral fissures, and low-set ears. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=26003402" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#2" class="mim-tip-reference" title="Butler, S., Helbig, K. L., Alcaraz, W., Seaver, L. H., Hsieh, D. T., Rohena, L. &lt;strong&gt;Three cases of Troyer syndrome in two families of Filipino descent.&lt;/strong&gt; Am. J. Med. Genet. 170A: 1780-1785, 2016.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/27112432/&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;27112432&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.37658&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="27112432">Butler et al. (2016)</a> reported 2 sisters and an unrelated boy, all of Filipino descent, with SPG20. The patients had short stature, failure to thrive with poor overall growth and small head circumference, and mildly delayed development with variable learning difficulties and speech delay. All had an unsteady unbalanced gait, but only the sisters showed frank spasticity and inturned ankles. Additional features included mild proximal weakness, distal amyotrophy, dystonic posturing of the hands, and ankle contractures, as well as dysarthria and oromotor dysfunction. Dysmorphic features were mild, but included microcephaly, frontal bossing, flat midface, narrow mandible, upturned nostrils, and posterior rotation of the ears. All patients attended school; 2 were in special needs classes. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=27112432" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="inheritance" class="mim-anchor"></a>
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<strong>Inheritance</strong>
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<p>The transmission pattern of SPG20 in the families reported by <a href="#1" class="mim-tip-reference" title="Bakowska, J. C., Wang, H., Xin, B., Sumner, C. J., Blackstone, C. &lt;strong&gt;Lack of spartin protein in Troyer syndrome: a loss-of-function disease mechanism?&lt;/strong&gt; Arch. Neurol. 65: 520-524, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18413476/&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;18413476&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.65.4.520&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="18413476">Bakowska et al. (2008)</a> was consistent with autosomal recessive inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18413476" 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="mapping" class="mim-anchor"></a>
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<strong>Mapping</strong>
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<p><a href="#6" class="mim-tip-reference" title="Patel, H., Cross, H., Proukakis, C., Hershberger, R., Bork, P., Ciccarelli, F. D., Patton, M. A., McKusick, V. A., Crosby, A. H. &lt;strong&gt;SPG20 is mutated in Troyer syndrome, an hereditary spastic paraplegia.&lt;/strong&gt; Nature Genet. 31: 347-348, 2002.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12134148/&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;12134148&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng937&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="12134148">Patel et al. (2002)</a> excluded 5 loci for autosomal recessive hereditary spastic paraplegia by linkage analysis and, using homozygosity mapping, mapped the Troyer syndrome gene to a 731-kb interval of chromosome 13q12.3. All affected individuals were homozygous for this segment. A maximum location score of 19.6 was obtained between markers D13S1841 and D13S1842. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12134148" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="molecularGenetics" class="mim-anchor"></a>
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<strong>Molecular Genetics</strong>
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<p><a href="#6" class="mim-tip-reference" title="Patel, H., Cross, H., Proukakis, C., Hershberger, R., Bork, P., Ciccarelli, F. D., Patton, M. A., McKusick, V. A., Crosby, A. H. &lt;strong&gt;SPG20 is mutated in Troyer syndrome, an hereditary spastic paraplegia.&lt;/strong&gt; Nature Genet. 31: 347-348, 2002.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12134148/&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;12134148&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng937&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="12134148">Patel et al. (2002)</a> identified a frameshift mutation (1110delA; <a href="/entry/607111#0001">607111.0001</a>) in the SPG20 gene in individuals with Troyer syndrome from the Amish kindred in which the disorder was first described. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12134148" 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="Bakowska, J. C., Wang, H., Xin, B., Sumner, C. J., Blackstone, C. &lt;strong&gt;Lack of spartin protein in Troyer syndrome: a loss-of-function disease mechanism?&lt;/strong&gt; Arch. Neurol. 65: 520-524, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18413476/&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;18413476&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1001/archneur.65.4.520&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="18413476">Bakowska et al. (2008)</a> identified the 1110delA mutation in 2 Amish sibs with Troyer syndrome. Studies on patient fibroblasts and lymphoblasts showed spartin mRNA transcripts, but no translated protein, consistent with complete loss of function. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18413476" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In affected members of a large Omani kindred with SPG20, <a href="#4" class="mim-tip-reference" title="Manzini, M. C., Rajab, A., Maynard, T. M., Mochida, G. H., Tan, W.-H., Nasir, R., Hill, R. S., Gleason, D., Al Saffar, M., Partlow, J. N., Barry, B. J., Vernon, M., LaMantia, A.-S., Walsh, C. A. &lt;strong&gt;Developmental and degenerative features in a complicated spastic paraplegia.&lt;/strong&gt; Ann. Neurol. 67: 516-525, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20437587/&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;20437587&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=20437587[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.21923&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="20437587">Manzini et al. (2010)</a> identified a homozygous truncating mutation in the SPG20 gene (364_365delAT; <a href="/entry/607111#0002">607111.0002</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20437587" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In 2 sibs, born of consanguineous Turkish parents, with SPG20, <a href="#7" class="mim-tip-reference" title="Tawamie, H., Wohlleber, E., Uebe, S., Schmal, C., Nothen, M. M., Jamra, R. A. &lt;strong&gt;Recurrent null mutation in SPG20 leads to Troyer syndrome.&lt;/strong&gt; Molec. Cell. Probes 29: 315-318, 2015.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/26003402/&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;26003402&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.mcp.2015.05.006&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="26003402">Tawamie et al. (2015)</a> identified homozygosity for the same truncating mutation in the SPG20 gene (<a href="/entry/607111#0002">607111.0002</a>) that had been identified in Omani patients by <a href="#4" class="mim-tip-reference" title="Manzini, M. C., Rajab, A., Maynard, T. M., Mochida, G. H., Tan, W.-H., Nasir, R., Hill, R. S., Gleason, D., Al Saffar, M., Partlow, J. N., Barry, B. J., Vernon, M., LaMantia, A.-S., Walsh, C. A. &lt;strong&gt;Developmental and degenerative features in a complicated spastic paraplegia.&lt;/strong&gt; Ann. Neurol. 67: 516-525, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20437587/&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;20437587&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=20437587[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.21923&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="20437587">Manzini et al. (2010)</a>. The mutation, which was found by a combination of homozygosity mapping and whole-exome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the family. Functional studies and studies of patient cells were not performed. Haplotype analysis indicated that the mutation occurred independently from that in the Omani patients reported by <a href="#4" class="mim-tip-reference" title="Manzini, M. C., Rajab, A., Maynard, T. M., Mochida, G. H., Tan, W.-H., Nasir, R., Hill, R. S., Gleason, D., Al Saffar, M., Partlow, J. N., Barry, B. J., Vernon, M., LaMantia, A.-S., Walsh, C. A. &lt;strong&gt;Developmental and degenerative features in a complicated spastic paraplegia.&lt;/strong&gt; Ann. Neurol. 67: 516-525, 2010.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/20437587/&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;20437587&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=20437587[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ana.21923&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="20437587">Manzini et al. (2010)</a>. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=26003402+20437587" 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 3 patients of Filipino descent, including 2 sisters, <a href="#2" class="mim-tip-reference" title="Butler, S., Helbig, K. L., Alcaraz, W., Seaver, L. H., Hsieh, D. T., Rohena, L. &lt;strong&gt;Three cases of Troyer syndrome in two families of Filipino descent.&lt;/strong&gt; Am. J. Med. Genet. 170A: 1780-1785, 2016.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/27112432/&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;27112432&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.a.37658&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="27112432">Butler et al. (2016)</a> also identified homozygosity for the previously reported c.364_365delAT frameshift mutation (<a href="/entry/607111#0002">607111.0002</a>) in the SPG20 gene. The mutation, which was found by exome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the families. Functional studies of the variant and studies of patient cells were not performed, but the occurrence of the same mutation in 3 families of different ethnicities confirmed the pathogenicity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=27112432" 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>Associations Pending Confirmation</em></strong></p><p>
For discussion of a possible role of the GRID2 gene in the Troyer syndrome phenotype, see <a href="/entry/602368">602368</a>.</p>
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<a id="seeAlso" class="mim-anchor"></a>
<h4 href="#mimSeeAlsoFold" id="mimSeeAlsoToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<a href="#Neuhauser1976" class="mim-tip-reference" title="Neuhauser, G., Wiffler, C., Opitz, J. M. &lt;strong&gt;Familial spastic paraplegia with distal muscle wasting in the Old Order Amish: atypical Troyer syndrome or &#x27;new&#x27; syndrome.&lt;/strong&gt; Clin. Genet. 9: 315-323, 1976.">Neuhauser et al. (1976)</a>
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<a id="references"class="mim-anchor"></a>
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<span class="mim-font">
<span id="mimReferencesToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>REFERENCES</strong>
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<a id="1" class="mim-anchor"></a>
<a id="Bakowska2008" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Bakowska, J. C., Wang, H., Xin, B., Sumner, C. J., Blackstone, C.
<strong>Lack of spartin protein in Troyer syndrome: a loss-of-function disease mechanism?</strong>
Arch. Neurol. 65: 520-524, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18413476/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18413476</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18413476" 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.65.4.520" target="_blank">Full Text</a>]
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<a id="Butler2016" class="mim-anchor"></a>
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<p class="mim-text-font">
Butler, S., Helbig, K. L., Alcaraz, W., Seaver, L. H., Hsieh, D. T., Rohena, L.
<strong>Three cases of Troyer syndrome in two families of Filipino descent.</strong>
Am. J. Med. Genet. 170A: 1780-1785, 2016.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/27112432/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">27112432</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=27112432" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/ajmg.a.37658" target="_blank">Full Text</a>]
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<a id="Cross1967" class="mim-anchor"></a>
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<p class="mim-text-font">
Cross, H. E., McKusick, V. A.
<strong>The Troyer syndrome: a recessive form of spastic paraplegia with distal muscle wasting.</strong>
Arch. Neurol. 16: 473-485, 1967.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/6022528/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">6022528</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=6022528" 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.1967.00470230025003" target="_blank">Full Text</a>]
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<a id="4" class="mim-anchor"></a>
<a id="Manzini2010" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Manzini, M. C., Rajab, A., Maynard, T. M., Mochida, G. H., Tan, W.-H., Nasir, R., Hill, R. S., Gleason, D., Al Saffar, M., Partlow, J. N., Barry, B. J., Vernon, M., LaMantia, A.-S., Walsh, C. A.
<strong>Developmental and degenerative features in a complicated spastic paraplegia.</strong>
Ann. Neurol. 67: 516-525, 2010.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/20437587/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">20437587</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=20437587[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=20437587" 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.21923" target="_blank">Full Text</a>]
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<a id="5" class="mim-anchor"></a>
<a id="Neuhauser1976" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Neuhauser, G., Wiffler, C., Opitz, J. M.
<strong>Familial spastic paraplegia with distal muscle wasting in the Old Order Amish: atypical Troyer syndrome or 'new' syndrome.</strong>
Clin. Genet. 9: 315-323, 1976.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/1261070/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">1261070</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1261070" 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.1399-0004.1976.tb01580.x" target="_blank">Full Text</a>]
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<a id="6" class="mim-anchor"></a>
<a id="Patel2002" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Patel, H., Cross, H., Proukakis, C., Hershberger, R., Bork, P., Ciccarelli, F. D., Patton, M. A., McKusick, V. A., Crosby, A. H.
<strong>SPG20 is mutated in Troyer syndrome, an hereditary spastic paraplegia.</strong>
Nature Genet. 31: 347-348, 2002.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12134148/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12134148</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12134148" 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/ng937" target="_blank">Full Text</a>]
</p>
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<a id="7" class="mim-anchor"></a>
<a id="Tawamie2015" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Tawamie, H., Wohlleber, E., Uebe, S., Schmal, C., Nothen, M. M., Jamra, R. A.
<strong>Recurrent null mutation in SPG20 leads to Troyer syndrome.</strong>
Molec. Cell. Probes 29: 315-318, 2015.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/26003402/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">26003402</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=26003402" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/j.mcp.2015.05.006" target="_blank">Full Text</a>]
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Cassandra L. Kniffin - updated : 03/01/2018
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Cassandra L. Kniffin - updated : 5/11/2016<br>Cassandra L. Kniffin - updated : 6/25/2010<br>Cassandra L. Kniffin - updated : 1/7/2009<br>Victor A. McKusick - updated : 7/23/2002
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Victor A. McKusick : 6/4/1986
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carol : 03/06/2018
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<span class="mim-font">
<strong>#</strong> 275900
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SPASTIC PARAPLEGIA 20, AUTOSOMAL RECESSIVE; SPG20
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<em>Alternative titles; symbols</em>
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TROYER SYNDROME<br />
SPASTIC PARAPARESIS, CHILDHOOD-ONSET, WITH DISTAL MUSCLE WASTING<br />
SPASTIC PARAPLEGIA, AUTOSOMAL RECESSIVE, TROYER TYPE
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<strong>SNOMEDCT:</strong> 230264003; &nbsp;
<strong>ORPHA:</strong> 101000; &nbsp;
<strong>DO:</strong> 0050886; &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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13q13.3
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Troyer syndrome
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275900
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Autosomal recessive
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3
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SPART
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607111
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that autosomal recessive spastic paraplegia-20, also known as Troyer syndrome, is caused by homozygous mutation in the SPG20 gene, encoding spartin (607111), on chromosome 13q13. SPG20 is a form of complicated SPG.</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>In an Amish group in Ohio, Cross and McKusick (1967) observed 20 cases of spastic paraplegia with distal muscle wasting, and designated it Troyer syndrome for the surname of many of the affected persons. The disorder has its onset in early childhood with dysarthria, distal muscle wasting, and difficulty in learning to walk. Lower limb spasticity and contractures usually make walking impossible by the third or fourth decade. Drooling and mild cerebellar signs occur in some. All have weakness and atrophy of thenar, hypothenar, and dorsal interosseous muscles. </p><p>Bakowska et al. (2008) reported an Amish brother and sister from Ohio with Troyer syndrome. Both showed delayed motor and cognitive development and developed a progressive deterioration in gait and speech during childhood. Physical exam showed short stature, spastic dysarthria, mild pyramidal weakness in the lower extremities, distal amyotrophy, and hyperreflexia of the lower limbs. Skeletal examination in both sibs was notable for kyphoscoliosis, loss of teeth, pes cavus, small feet, and hyperextensible joints of the hands. The brother had severe pectus excavatum. Gait was wide-based and spastic; the brother ambulated with difficulty and required assistance, whereas the sister was wheelchair-bound. Both had occasional inappropriate euphoria or crying, consistent with emotional lability. </p><p>Manzini et al. (2010) reported a large Omani kindred with SPG20. All affected individuals presented with short stature and dysarthria, and showed delayed motor and cognitive development. The main features included spastic gait, hyperreflexia, and dysmetria of the upper limbs. Other findings included hypertelorism, overgrowth of the maxilla, brachydactyly, clinodactyly, camptodactyly, pes cavus, tightening of the heel cords, hammer toes, and ankle clonus. Brain MRI showed atrophy of the cerebellar vermis, mild white matter volume loss, and periventricular white matter changes suggestive of gliosis. Although the patients were young, there appeared to be progression of the disorder. </p><p>Tawamie et al. (2015) reported 2 sibs, born of consanguineous Turkish parents, with complicated spastic paraplegia. The patients were 26 and 17 years of age at the time of the report. The older sister had delayed psychomotor development in infancy. At age 5 years, she had overall growth retardation, generalized hypotonia, and joint hypermobility. As a teenager and young adult, she had muscle weakness and atrophy of the upper extremities, hoarse voice, high-arched feet, and hyperreflexia of the lower limbs. Skeletal abnormalities included low-set dysmorphic thumbs and clinodactyly with mild skeletal abnormalities of the hand. She developed psychiatric disturbances, including anxiety, panic attacks, hallucinations, psychosis, and suicidal ideation; her IQ was 46. Her brother had developmental delay, overall growth retardation, hypotonia with muscle atrophy, hyperextensible joints, ataxic gait, and slurred speech. Both patients had mild dysmorphic features, including prominent nose, raised nostrils, epicanthus, downslanting palpebral fissures, and low-set ears. </p><p>Butler et al. (2016) reported 2 sisters and an unrelated boy, all of Filipino descent, with SPG20. The patients had short stature, failure to thrive with poor overall growth and small head circumference, and mildly delayed development with variable learning difficulties and speech delay. All had an unsteady unbalanced gait, but only the sisters showed frank spasticity and inturned ankles. Additional features included mild proximal weakness, distal amyotrophy, dystonic posturing of the hands, and ankle contractures, as well as dysarthria and oromotor dysfunction. Dysmorphic features were mild, but included microcephaly, frontal bossing, flat midface, narrow mandible, upturned nostrils, and posterior rotation of the ears. All patients attended school; 2 were in special needs classes. </p>
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<strong>Inheritance</strong>
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<p>The transmission pattern of SPG20 in the families reported by Bakowska et al. (2008) was consistent with autosomal recessive inheritance. </p>
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<strong>Mapping</strong>
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<p>Patel et al. (2002) excluded 5 loci for autosomal recessive hereditary spastic paraplegia by linkage analysis and, using homozygosity mapping, mapped the Troyer syndrome gene to a 731-kb interval of chromosome 13q12.3. All affected individuals were homozygous for this segment. A maximum location score of 19.6 was obtained between markers D13S1841 and D13S1842. </p>
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<strong>Molecular Genetics</strong>
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<p>Patel et al. (2002) identified a frameshift mutation (1110delA; 607111.0001) in the SPG20 gene in individuals with Troyer syndrome from the Amish kindred in which the disorder was first described. </p><p>Bakowska et al. (2008) identified the 1110delA mutation in 2 Amish sibs with Troyer syndrome. Studies on patient fibroblasts and lymphoblasts showed spartin mRNA transcripts, but no translated protein, consistent with complete loss of function. </p><p>In affected members of a large Omani kindred with SPG20, Manzini et al. (2010) identified a homozygous truncating mutation in the SPG20 gene (364_365delAT; 607111.0002). </p><p>In 2 sibs, born of consanguineous Turkish parents, with SPG20, Tawamie et al. (2015) identified homozygosity for the same truncating mutation in the SPG20 gene (607111.0002) that had been identified in Omani patients by Manzini et al. (2010). The mutation, which was found by a combination of homozygosity mapping and whole-exome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the family. Functional studies and studies of patient cells were not performed. Haplotype analysis indicated that the mutation occurred independently from that in the Omani patients reported by Manzini et al. (2010). </p><p>In 3 patients of Filipino descent, including 2 sisters, Butler et al. (2016) also identified homozygosity for the previously reported c.364_365delAT frameshift mutation (607111.0002) in the SPG20 gene. The mutation, which was found by exome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the families. Functional studies of the variant and studies of patient cells were not performed, but the occurrence of the same mutation in 3 families of different ethnicities confirmed the pathogenicity. </p><p><strong><em>Associations Pending Confirmation</em></strong></p><p>
For discussion of a possible role of the GRID2 gene in the Troyer syndrome phenotype, see 602368.</p>
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<strong>See Also:</strong>
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<span class="mim-text-font">
Neuhauser et al. (1976)
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<strong>REFERENCES</strong>
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<p class="mim-text-font">
Bakowska, J. C., Wang, H., Xin, B., Sumner, C. J., Blackstone, C.
<strong>Lack of spartin protein in Troyer syndrome: a loss-of-function disease mechanism?</strong>
Arch. Neurol. 65: 520-524, 2008.
[PubMed: 18413476]
[Full Text: https://doi.org/10.1001/archneur.65.4.520]
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Butler, S., Helbig, K. L., Alcaraz, W., Seaver, L. H., Hsieh, D. T., Rohena, L.
<strong>Three cases of Troyer syndrome in two families of Filipino descent.</strong>
Am. J. Med. Genet. 170A: 1780-1785, 2016.
[PubMed: 27112432]
[Full Text: https://doi.org/10.1002/ajmg.a.37658]
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<li>
<p class="mim-text-font">
Cross, H. E., McKusick, V. A.
<strong>The Troyer syndrome: a recessive form of spastic paraplegia with distal muscle wasting.</strong>
Arch. Neurol. 16: 473-485, 1967.
[PubMed: 6022528]
[Full Text: https://doi.org/10.1001/archneur.1967.00470230025003]
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<p class="mim-text-font">
Manzini, M. C., Rajab, A., Maynard, T. M., Mochida, G. H., Tan, W.-H., Nasir, R., Hill, R. S., Gleason, D., Al Saffar, M., Partlow, J. N., Barry, B. J., Vernon, M., LaMantia, A.-S., Walsh, C. A.
<strong>Developmental and degenerative features in a complicated spastic paraplegia.</strong>
Ann. Neurol. 67: 516-525, 2010.
[PubMed: 20437587]
[Full Text: https://doi.org/10.1002/ana.21923]
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<p class="mim-text-font">
Neuhauser, G., Wiffler, C., Opitz, J. M.
<strong>Familial spastic paraplegia with distal muscle wasting in the Old Order Amish: atypical Troyer syndrome or &#x27;new&#x27; syndrome.</strong>
Clin. Genet. 9: 315-323, 1976.
[PubMed: 1261070]
[Full Text: https://doi.org/10.1111/j.1399-0004.1976.tb01580.x]
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Patel, H., Cross, H., Proukakis, C., Hershberger, R., Bork, P., Ciccarelli, F. D., Patton, M. A., McKusick, V. A., Crosby, A. H.
<strong>SPG20 is mutated in Troyer syndrome, an hereditary spastic paraplegia.</strong>
Nature Genet. 31: 347-348, 2002.
[PubMed: 12134148]
[Full Text: https://doi.org/10.1038/ng937]
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Tawamie, H., Wohlleber, E., Uebe, S., Schmal, C., Nothen, M. M., Jamra, R. A.
<strong>Recurrent null mutation in SPG20 leads to Troyer syndrome.</strong>
Molec. Cell. Probes 29: 315-318, 2015.
[PubMed: 26003402]
[Full Text: https://doi.org/10.1016/j.mcp.2015.05.006]
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Cassandra L. Kniffin - updated : 03/01/2018<br>Cassandra L. Kniffin - updated : 5/11/2016<br>Cassandra L. Kniffin - updated : 6/25/2010<br>Cassandra L. Kniffin - updated : 1/7/2009<br>Victor A. McKusick - updated : 7/23/2002
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Victor A. McKusick : 6/4/1986
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