nih-gov/www.ncbi.nlm.nih.gov/omim/604286

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Entry
- #604286 - MUSCULAR DYSTROPHY, LIMB-GIRDLE, AUTOSOMAL RECESSIVE 4; LGMDR4
- OMIM
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<span class="h4">#604286</span>
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<a href="#title"><strong>Title</strong></a>
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<a href="#phenotypeMap"><strong>Phenotype-Gene Relationships</strong></a>
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<a href="/clinicalSynopsis/604286"><strong>Clinical Synopsis</strong></a>
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<a href="/phenotypicSeries/PS253600"> <strong>Phenotypic Series</strong> </a>
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<a href="#text"><strong>Text</strong></a>
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<a href="#description">Description</a>
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<a href="#nomenclature">Nomenclature</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#clinicalFeatures">Clinical Features</a>
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<a href="#diagnosis">Diagnosis</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#mapping">Mapping</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#inheritance">Inheritance</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#cytogenetics">Cytogenetics</a>
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<a href="#genotypePhenotypeCorrelations">Genotype/Phenotype Correlations</a>
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<a href="#populationGenetics">Population Genetics</a>
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<a href="#animalModel">Animal Model</a>
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<a href="#references"><strong>References</strong></a>
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<a href="#contributors"><strong>Contributors</strong></a>
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<a href="#creationDate"><strong>Creation Date</strong></a>
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<div><a href="https://clinicaltrials.gov/search?cond=MUSCULAR DYSTROPHY, LIMB-GIRDLE, AUTOSOMAL RECESSIVE" class="mim-tip-hint" title="A registry of federally and privately supported clinical trials conducted in the United States and around the world." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Clinical Trials', 'domain': 'clinicaltrials.gov'})">Clinical Trials</a></div>
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<div><a href="http://www.informatics.jax.org/disease/604286" 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:0110279" 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>
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<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.">
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<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> 718850008<br />
<strong>ICD10CM:</strong> G71.0342<br />
<strong>ORPHA:</strong> 119<br />
<strong>DO:</strong> 0110279<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>
604286
</span>
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<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
MUSCULAR DYSTROPHY, LIMB-GIRDLE, AUTOSOMAL RECESSIVE 4; LGMDR4
</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">
MUSCULAR DYSTROPHY, LIMB-GIRDLE, TYPE 2E; LGMD2E
</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/4/214?start=-3&limit=10&highlight=214">
4q12
</a>
</span>
</td>
<td>
<span class="mim-font">
Muscular dystrophy, limb-girdle, autosomal recessive 4
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604286"> 604286 </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">
SGCB
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600900"> 600900 </a>
</span>
</td>
</tr>
</tbody>
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<li><a href="/graph/linear/604286" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
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<span class="glyphicon glyphicon-question-sign mim-tip-hint" title="OMIM PheneGene graphics depict relationships between phenotypes, groups of related phenotypes (Phenotypic Series), and genes.<br /><a href='/static/omim/pdf/OMIM_Graphics.pdf' target='_blank'>A quick reference overview and guide (PDF)</a>"></span>
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<div id="mimClinicalSynopsisFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small" style="margin: 5px">
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<span class="h5 mim-font">
<strong> INHERITANCE </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Autosomal recessive <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/258211005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">258211005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0441748&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0441748</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> CARDIOVASCULAR </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Heart </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Dilated cardiomyopathy (rare) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/399020009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">399020009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/195021004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">195021004</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/I42.0" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">I42.0</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0007193&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0007193</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001644" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001644</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0001644" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0001644</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> CHEST </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Ribs Sternum Clavicles & Scapulae </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Scapular winging <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/17211005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">17211005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0240953&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0240953</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003691" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003691</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003691" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003691</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">
- Muscle weakness, proximal, limb-girdle <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2676697&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2676697</a>]</span><br /> -
Proximal muscle atrophy <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1850794&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1850794</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007126" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007126</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007126" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007126</a>]</span><br /> -
Trunk muscle atrophy <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0241489&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0241489</a>]</span><br /> -
Calf pseudohypertrophy <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1839666&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1839666</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003707" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003707</a>]</span><br /> -
Skeletal muscle shows dystrophic changes <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2676698&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2676698</a>]</span><br /> -
Skeletal muscle shows decreased sarcoglycan proteins <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C2676699&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C2676699</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> LABORATORY ABNORMALITIES </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Increased serum creatine kinase <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0241005&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0241005</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003236" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003236</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003236" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003236</a>]</span><br />
</span>
</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 childhood (range 4 to 12 years)<br /> -
Variable progression<br /> -
Most patients become wheelchair-bound in the second to fourth decades<br /> -
Intrafamilial variability<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 beta-sarcoglycan gene (SGCB, <a href="/entry/600900#0001">600900.0001</a>)<br />
</span>
</div>
</div>
</div>
<div class="text-right">
<a href="#mimClinicalSynopsisFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
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<h5>
Muscular dystrophy, limb-girdle, autosomal recessive
- <a href="/phenotypicSeries/PS253600">PS253600</a>
- 31 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/1/565?start=-3&limit=10&highlight=565"> 1p34.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613157"> Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 3 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613157"> 613157 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606822"> POMGNT1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/606822"> 606822 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/1/1466?start=-3&limit=10&highlight=1466"> 1q25.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617072"> ?Muscular dystrophy, autosomal recessive, with rigid spine and distal joint contractures </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/617072"> 617072 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614512"> TOR1AIP1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614512"> 614512 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/351?start=-3&limit=10&highlight=351"> 2p13.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/253601"> Muscular dystrophy, limb-girdle, autosomal recessive 2 </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/253601"> 253601 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603009"> DYSF </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/603009"> 603009 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/625?start=-3&limit=10&highlight=625"> 2q14.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616827"> ?Muscular dystrophy, autosomal recessive, with cardiomyopathy and triangular tongue </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/616827"> 616827 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607908"> LIMS2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607908"> 607908 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/2/823?start=-3&limit=10&highlight=823"> 2q31.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608807"> Muscular dystrophy, limb-girdle, autosomal recessive 10 </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/608807"> 608807 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/188840"> TTN </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/188840"> 188840 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/214?start=-3&limit=10&highlight=214"> 3p22.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618135"> Muscular dystrophy-dystroglycanopathy (limb-girdle) type C, 8 </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/618135"> 618135 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614828"> POMGNT2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614828"> 614828 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/313?start=-3&limit=10&highlight=313"> 3p21.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613818"> Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 9 </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/613818"> 613818 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/128239"> DAG1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/128239"> 128239 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/319?start=-3&limit=10&highlight=319"> 3p21.31 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615352"> Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 14 </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/615352"> 615352 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615320"> GMPPB </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615320"> 615320 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/3/572?start=-3&limit=10&highlight=572"> 3q13.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617232"> Muscular dystrophy, limb-girdle, autosomal recessive 21 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617232"> 617232 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615618"> POGLUT1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615618"> 615618 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/214?start=-3&limit=10&highlight=214"> 4q12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604286"> Muscular dystrophy, limb-girdle, autosomal recessive 4 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604286"> 604286 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600900"> SGCB </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/600900"> 600900 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/4/705?start=-3&limit=10&highlight=705"> 4q35.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615356"> Muscular dystrophy, limb-girdle, autosomal recessive 18 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/615356"> 615356 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614138"> TRAPPC11 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614138"> 614138 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/259?start=-3&limit=10&highlight=259"> 5q13.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620375"> Muscular dystrophy, limb-girdle, autosomal recessive 28 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620375"> 620375 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/142910"> HMGCR </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/142910"> 142910 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/5/704?start=-3&limit=10&highlight=704"> 5q33.2-q33.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601287"> Muscular dystrophy, limb-girdle, autosomal recessive 6 </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/601287"> 601287 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601411"> SGCD </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601411"> 601411 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/6/743?start=-3&limit=10&highlight=743"> 6q21 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616812"> Muscular dystrophy, limb-girdle, autosomal recessive 25 </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/616812"> 616812 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604577"> BVES </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604577"> 604577 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/6/744?start=-3&limit=10&highlight=744"> 6q21 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618848"> Muscular dystrophy, limb-girdle, autosomal recessive 26 </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/618848"> 618848 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605824"> POPDC3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/605824"> 605824 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/6/842?start=-3&limit=10&highlight=842"> 6q22.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618138"> Muscular dystrophy, limb-girdle, autosomal recessive 23 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/618138"> 618138 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/156225"> LAMA2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/156225"> 156225 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/7/83?start=-3&limit=10&highlight=83"> 7p21.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/616052"> Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 7 </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/616052"> 616052 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614631"> CRPPA </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/614631"> 614631 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/8/621?start=-3&limit=10&highlight=621"> 8q24.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613723"> Muscular dystrophy, limb-girdle, autosomal recessive 17 </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/613723"> 613723 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601282"> PLEC1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601282"> 601282 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/389?start=-3&limit=10&highlight=389"> 9q31.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611588"> Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 4 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611588"> 611588 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607440"> FKTN </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607440"> 607440 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/453?start=-3&limit=10&highlight=453"> 9q33.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/254110"> Muscular dystrophy, limb-girdle, autosomal recessive 8 </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/254110"> 254110 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602290"> TRIM32 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602290"> 602290 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/9/589?start=-3&limit=10&highlight=589"> 9q34.13 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609308"> Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 1 </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/609308"> 609308 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607423"> POMT1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607423"> 607423 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/11/243?start=-3&limit=10&highlight=243"> 11p14.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611307"> Muscular dystrophy, limb-girdle, autosomal recessive 12 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/611307"> 611307 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608662"> ANO5 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608662"> 608662 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/13/30?start=-3&limit=10&highlight=30"> 13q12.12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/253700"> Muscular dystrophy, limb-girdle, autosomal recessive 5 </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/253700"> 253700 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608896"> SGCG </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/608896"> 608896 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/414?start=-3&limit=10&highlight=414"> 14q24.3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/613158"> Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 2 </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/613158"> 613158 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607439"> POMT2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607439"> 607439 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/14/600?start=-3&limit=10&highlight=600"> 14q32.33 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/619566"> Muscular dystrophy, limb-girdle, autosomal recessive 27 </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/619566"> 619566 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602570"> JAG2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/602570"> 602570 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/133?start=-3&limit=10&highlight=133"> 15q15.1 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/253600"> Muscular dystrophy, limb-girdle, autosomal recessive 1 </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/253600"> 253600 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114240"> CAPN3 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/114240"> 114240 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/15/400?start=-3&limit=10&highlight=400"> 15q24.2 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620793"> Muscular dystrophy, limb-girdle, autosomal recessive 29 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/620793"> 620793 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607902"> SNUPN </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/607902"> 607902 </a>
</span>
</td>
</tr>
<tr>
<td>
<span class="mim-font">
<a href="/geneMap/17/488?start=-3&limit=10&highlight=488"> 17q12 </a>
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/601954"> Muscular dystrophy, limb-girdle, autosomal recessive 7 </a>
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<abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
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<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<a href="/entry/601954"> 601954 </a>
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<a href="/entry/604488"> TCAP </a>
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<a href="/entry/604488"> 604488 </a>
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<a href="/geneMap/17/733?start=-3&limit=10&highlight=733"> 17q21.33 </a>
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<span class="mim-font">
<a href="/entry/608099"> Muscular dystrophy, limb-girdle, autosomal recessive 3 </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/608099"> 608099 </a>
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<a href="/entry/600119"> SGCA </a>
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<a href="/entry/600119"> 600119 </a>
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<a href="/geneMap/19/859?start=-3&limit=10&highlight=859"> 19q13.32 </a>
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<span class="mim-font">
<a href="/entry/607155"> Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 5 </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/607155"> 607155 </a>
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<a href="/entry/606596"> FKRP </a>
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<span class="mim-font">
<a href="/entry/606596"> 606596 </a>
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<a href="/geneMap/21/174?start=-3&limit=10&highlight=174"> 21q22.3 </a>
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<a href="/entry/254090"> Ullrich congenital muscular dystrophy 1A </a>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="Autosomal dominant">AD</abbr>, <abbr class="mim-tip-hint" title="Autosomal recessive">AR</abbr>
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<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known"> 3 </abbr>
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<span class="mim-font">
<a href="/entry/254090"> 254090 </a>
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<span class="mim-font">
<a href="/entry/120220"> COL6A1 </a>
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<span class="mim-font">
<a href="/entry/120220"> 120220 </a>
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<p>A number sign (#) is used with this entry because autosomal recessive limb-girdle muscular dystrophy-4 (LGMDR4) is caused by homozygous or compound heterozygous mutation in the gene encoding beta-sarcoglycan (SGCB; <a href="/entry/600900">600900</a>) on chromosome 4q12.</p>
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<p>Limb-girdle muscular dystrophies are characterized clinically by predominantly proximal muscle weakness of variable severity and dystrophic changes on muscle biopsy. LGMDR4 is in general a severe form of the disorder, with some patients developing symptoms before 8 years of age and losing the ability to ambulate in their second decade. Some patients have a milder course, with weakness evident in the teenage years and loss of walking ability in their fourth decade (summary by <a href="#10" class="mim-tip-reference" title="Lim, L. E., Duclos, F., Broux, O., Bourg, N., Sunada, Y., Allamand, V., Meyer, J., Richard, I., Moomaw, C., Slaughter, C., Tome, F. M. S., Fardeau, M., Jackson, C. E., Beckmann, J. S., Campbell, K. P. &lt;strong&gt;Beta-sarcoglycan: characterization and role in limb-girdle muscular dystrophy linked to 4q12.&lt;/strong&gt; Nature Genet. 11: 257-265, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7581448/&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;7581448&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1195-257&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="7581448">Lim et al., 1995</a> and <a href="#6" class="mim-tip-reference" title="Bonnemann, C. G., Passos-Bueno, M. R., McNally, E. M., Vainzof, M., Moreira, E. S., Marie, S. K., Pavanello, R. C. M., Noguchi, S., Ozawa, E., Zatz, M., Kunkel, L. M. &lt;strong&gt;Genomic screening for beta-sarcoglycan gene mutations: missense mutations may cause severe limb-girdle muscular dystrophy type 2E (LGMD 2E).&lt;/strong&gt; Hum. Molec. Genet. 5: 1953-1961, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8968749/&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;8968749&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/5.12.1953&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="8968749">Bonnemann et al., 1996</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=7581448+8968749" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>For a general phenotypic description and a discussion of genetic heterogeneity of autosomal recessive limb-girdle muscular dystrophy, see LGMDR1 (<a href="/entry/253600">253600</a>).</p>
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<p>At the 229th ENMC international workshop, <a href="#14" class="mim-tip-reference" title="Straub, V., Murphy, A., Udd, B. &lt;strong&gt;229th ENMC international workshop: limb girdle muscular dystrophies--nomenclature and reformed classification, Naarden, the Netherlands, 17-19 March 2017.&lt;/strong&gt; Neuromusc. Disord. 28: 702-710, 2018.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/30055862/&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;30055862&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/j.nmd.2018.05.007&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="30055862">Straub et al. (2018)</a> reviewed, reclassified, and/or renamed forms of LGMD. The proposed naming formula was 'LGMD, inheritance (R or D), order of discovery (number), affected protein.' Under this formula, LGMD2E was renamed LGMDR4. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30055862" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><a href="#8" class="mim-tip-reference" title="Jackson, C. E., Strehler, D. A. &lt;strong&gt;Limb-girdle muscular dystrophy: clinical manifestations and detection of preclinical disease.&lt;/strong&gt; Pediatrics 41: 495-502, 1968.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/5637795/&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;5637795&lt;/a&gt;]" pmid="5637795">Jackson and Strehler (1968)</a> reported 5 nuclear Old Amish families from southern Indiana with autosomal recessive limb-girdle muscular dystrophy. The families showed links to an ancestral couple born in the late 1700s (<a href="#1" class="mim-tip-reference" title="Allamand, V., Broux, O., Bourg, N., Richard, I., Tischfield, J. A., Hodes, M. E., Conneally, P. M., Fardeau, M., Jackson, C. E., Beckmann, J. S. &lt;strong&gt;Genetic heterogeneity of autosomal recessive limb-girdle muscular dystrophy in a genetic isolate (Amish) and evidence for a new locus.&lt;/strong&gt; Hum. Molec. Genet. 4: 459-463, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7795603/&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;7795603&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/4.3.459&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="7795603">Allamand et al., 1995</a>). In 6 Amish families with LGMD from southern Indiana, <a href="#1" class="mim-tip-reference" title="Allamand, V., Broux, O., Bourg, N., Richard, I., Tischfield, J. A., Hodes, M. E., Conneally, P. M., Fardeau, M., Jackson, C. E., Beckmann, J. S. &lt;strong&gt;Genetic heterogeneity of autosomal recessive limb-girdle muscular dystrophy in a genetic isolate (Amish) and evidence for a new locus.&lt;/strong&gt; Hum. Molec. Genet. 4: 459-463, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7795603/&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;7795603&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/4.3.459&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="7795603">Allamand et al. (1995)</a> excluded linkage to the LGMD2A (LGMDR1; <a href="/entry/253600">253600</a>) locus on chromosome 15q. <a href="#10" class="mim-tip-reference" title="Lim, L. E., Duclos, F., Broux, O., Bourg, N., Sunada, Y., Allamand, V., Meyer, J., Richard, I., Moomaw, C., Slaughter, C., Tome, F. M. S., Fardeau, M., Jackson, C. E., Beckmann, J. S., Campbell, K. P. &lt;strong&gt;Beta-sarcoglycan: characterization and role in limb-girdle muscular dystrophy linked to 4q12.&lt;/strong&gt; Nature Genet. 11: 257-265, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7581448/&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;7581448&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1195-257&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="7581448">Lim et al. (1995)</a> reported the clinical features of 11 Amish patients from southern Indiana with autosomal recessive LGMD. All patients presented with proximal symmetric weakness and atrophy of the limb and trunk muscles. The average age at onset was 7.6 years (range 4 to 12), and loss of walking occurred between 12 and 38 years. Calf hypertrophy was also observed. There was marked intrafamilial variability. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=5637795+7581448+7795603" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#5" class="mim-tip-reference" title="Bonnemann, C. G., Modi, R., Noguchi, S., Mizuno, Y., Yoshida, M., Gussoni, E., McNally, E. M., Duggan, D. J., Angelini, C., Hoffman, E. P., Ozawa, E., Kunkel, L. M. &lt;strong&gt;Beta-sarcoglycan (A3b) mutations cause autosomal recessive muscular dystrophy with loss of the sarcoglycan complex.&lt;/strong&gt; Nature Genet. 11: 266-273, 1995. Note: Erratum: Nature Genet. 12: 110 only, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7581449/&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;7581449&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1195-266&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="7581449">Bonnemann et al. (1995)</a> described a young girl with autosomal recessive LGMD. Immunostaining of her muscle biopsy showed specific loss of several components of the sarcoglycan complex: beta-sarcoglycan, alpha-sarcoglycan (SGCA; <a href="/entry/600119">600119</a>), and 35-kD sarcoglycan (SGCD; <a href="/entry/601411">601411</a>). Thus, secondary destabilization of the sarcoglycan complex is an important pathophysiologic event in autosomal recessive muscular dystrophy. Genetic analysis identified compound heterozygosity for 2 truncating mutations in the SGCB gene (<a href="/entry/600900#0002">600900.0002</a>, <a href="/entry/600900#0003">600900.0003</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7581449" 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="Barresi, R., Di Blasi, C., Negri, T., Brugnoni, R., Vitali, A., Felisari, G., Salandi, A., Daniel, S., Cornelio, F., Morandi, L., Mora, M. &lt;strong&gt;Disruption of heart sarcoglycan complex and severe cardiomyopathy caused by beta sarcoglycan mutations.&lt;/strong&gt; J. Med. Genet. 37: 102-107, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10662809/&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;10662809&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.37.2.102&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="10662809">Barresi et al. (2000)</a> reported 2 unrelated males with LGMD2E who developed fatal dilated cardiomyopathy and died at ages 27 and 18 years, respectively. The affected first-cousin of 1 of the patients did not have cardiomyopathy. Both heart and skeletal muscle biopsies showed reductions in gamma- (SGCG; <a href="/entry/608896">608896</a>) and alpha-sarcoglycan, confirming that mutations in 1 sarcoglycan gene can disrupt the whole dystrophin (DMD; <a href="/entry/300377">300377</a>)-associated glycoprotein (DAG) complex. <a href="#4" class="mim-tip-reference" title="Barresi, R., Di Blasi, C., Negri, T., Brugnoni, R., Vitali, A., Felisari, G., Salandi, A., Daniel, S., Cornelio, F., Morandi, L., Mora, M. &lt;strong&gt;Disruption of heart sarcoglycan complex and severe cardiomyopathy caused by beta sarcoglycan mutations.&lt;/strong&gt; J. Med. Genet. 37: 102-107, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10662809/&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;10662809&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.37.2.102&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="10662809">Barresi et al. (2000)</a> concluded that cardiac function should be monitored in patients with LGMD and defective sarcoglycan expression. Molecular analysis identified compound heterozygous mutations in the SGCB gene in 1 patient (<a href="/entry/600900#0003">600900.0003</a>; <a href="/entry/600900#0009">600900.0009</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10662809" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><strong><em>Prenatal Diagnosis</em></strong></p><p>
<a href="#12" class="mim-tip-reference" title="Pegoraro, E., Fanin, M., Angelini, C., Hoffman, E. P. &lt;strong&gt;Prenatal diagnosis in a family affected with beta-sarcoglycan muscular dystrophy.&lt;/strong&gt; Neuromusc. Disord. 9: 323-325, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10407854/&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;10407854&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0960-8966(99)00020-6&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="10407854">Pegoraro et al. (1999)</a> reported the first prenatal diagnosis of LGMD2E by direct gene mutation detection. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10407854" 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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<p>Using pericentromeric markers and an intragenic polymorphic CA repeat on chromosome 4q12, <a href="#10" class="mim-tip-reference" title="Lim, L. E., Duclos, F., Broux, O., Bourg, N., Sunada, Y., Allamand, V., Meyer, J., Richard, I., Moomaw, C., Slaughter, C., Tome, F. M. S., Fardeau, M., Jackson, C. E., Beckmann, J. S., Campbell, K. P. &lt;strong&gt;Beta-sarcoglycan: characterization and role in limb-girdle muscular dystrophy linked to 4q12.&lt;/strong&gt; Nature Genet. 11: 257-265, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7581448/&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;7581448&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1195-257&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="7581448">Lim et al. (1995)</a> demonstrated perfect cosegregation with autosomal recessive limb-girdle muscular dystrophy in Amish families from southern Indiana. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7581448" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>Inheritance</strong>
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<p>The transmission pattern of LGMDR4 in the families reported by <a href="#10" class="mim-tip-reference" title="Lim, L. E., Duclos, F., Broux, O., Bourg, N., Sunada, Y., Allamand, V., Meyer, J., Richard, I., Moomaw, C., Slaughter, C., Tome, F. M. S., Fardeau, M., Jackson, C. E., Beckmann, J. S., Campbell, K. P. &lt;strong&gt;Beta-sarcoglycan: characterization and role in limb-girdle muscular dystrophy linked to 4q12.&lt;/strong&gt; Nature Genet. 11: 257-265, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7581448/&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;7581448&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1195-257&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="7581448">Lim et al. (1995)</a> was consistent with autosomal recessive inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7581448" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="molecularGenetics" class="mim-anchor"></a>
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<p>In affected members of several Amish families with autosomal recessive LGMD, <a href="#10" class="mim-tip-reference" title="Lim, L. E., Duclos, F., Broux, O., Bourg, N., Sunada, Y., Allamand, V., Meyer, J., Richard, I., Moomaw, C., Slaughter, C., Tome, F. M. S., Fardeau, M., Jackson, C. E., Beckmann, J. S., Campbell, K. P. &lt;strong&gt;Beta-sarcoglycan: characterization and role in limb-girdle muscular dystrophy linked to 4q12.&lt;/strong&gt; Nature Genet. 11: 257-265, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7581448/&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;7581448&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1195-257&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="7581448">Lim et al. (1995)</a> identified a homozygous mutation in the SGCB gene (<a href="/entry/600900#0001">600900.0001</a>). Skeletal muscle biopsy showed a dramatic reduction in SGCB expression in the sarcolemma and a concomitant loss of adhalin (SGCA; <a href="/entry/600119">600119</a>) and 35-DAG (SGCD; <a href="/entry/601411">601411</a>), which was interpreted as representing a disruption of a functional subcomplex within the dystrophin-glycoprotein complex. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7581448" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#6" class="mim-tip-reference" title="Bonnemann, C. G., Passos-Bueno, M. R., McNally, E. M., Vainzof, M., Moreira, E. S., Marie, S. K., Pavanello, R. C. M., Noguchi, S., Ozawa, E., Zatz, M., Kunkel, L. M. &lt;strong&gt;Genomic screening for beta-sarcoglycan gene mutations: missense mutations may cause severe limb-girdle muscular dystrophy type 2E (LGMD 2E).&lt;/strong&gt; Hum. Molec. Genet. 5: 1953-1961, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8968749/&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;8968749&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/5.12.1953&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="8968749">Bonnemann et al. (1996)</a> identified novel mutations in the SGCB gene in 2 familial and 2 sporadic cases of severe childhood-onset LGMD. One patient carried a truncating mutation (<a href="/entry/600900#0004">600900.0004</a>); the other 3 patients had missense mutations in exon 3. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8968749" 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="#15" class="mim-tip-reference" title="Trabelsi, M., Kavian, N., Daoud, F., Commere, V., Deburgrave, N., Beugnet, C., Llense, S., Barbot, J. C., Vasson, A., Kaplan, J. C., Leturcq, F., Chelly, J. &lt;strong&gt;Revised spectrum of mutations in sarcoglycanopathies.&lt;/strong&gt; Europ. J. Hum. Genet. 16: 793-803, 2008.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/18285821/&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;18285821&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ejhg.2008.9&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="18285821">Trabelsi et al. (2008)</a> identified biallelic mutations in sarcoglycan genes in 46 (67%) of 69 patients with a clinical diagnosis of autosomal recessive LGMD. Twenty-six (56.5%) patients had SGCA mutations, 8 (17.3%) had SGCB mutations, and 12 (26%) had SGCG mutations. Seven of the 9 SGCB mutations were novel. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18285821" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><a href="#9" class="mim-tip-reference" title="Kaindl, A. M., Jakubiczka, S., Lucke, T., Bartsch, O., Weis, J., Stoltenburg-Didinger, G., Aksu, F., Oexle, K., Koehler, K., Huebner, A. &lt;strong&gt;Homozygous microdeletion of chromosome 4q11-q12 causes severe limb-girdle muscular dystrophy type 2E with joint hyperlaxity and contractures. (Abstract)&lt;/strong&gt; Hum. Mutat. 26: 279-280, 2005. Note: Full article online."None>Kaindl et al. (2005)</a> identified a homozygous 400-kb microdeletion of chromosome 4q11-q12 in 6 members of a consanguineous East Anatolian family with a severe form of LGMD2E with joint hyperlaxity and contractures. The deleted region included both the SGCB and SPATA18 (<a href="/entry/612814">612814</a>) genes. Other clinical features included onset between birth and 5 years, myopathic facies, and scoliosis. The proband had delayed motor development and lost the ability to walk by age 10 years. She had restrictive respiratory insufficiency, mild diastolic dysfunction of both ventricles, increased serum creatine kinase, type 2 diabetes mellitus, and polycystic ovary syndrome (PCOS; <a href="/entry/184700">184700</a>). Three affected family members died of heart failure at ages 20, 30, and 35 years, respectively. <a href="#9" class="mim-tip-reference" title="Kaindl, A. M., Jakubiczka, S., Lucke, T., Bartsch, O., Weis, J., Stoltenburg-Didinger, G., Aksu, F., Oexle, K., Koehler, K., Huebner, A. &lt;strong&gt;Homozygous microdeletion of chromosome 4q11-q12 causes severe limb-girdle muscular dystrophy type 2E with joint hyperlaxity and contractures. (Abstract)&lt;/strong&gt; Hum. Mutat. 26: 279-280, 2005. Note: Full article online."None>Kaindl et al. (2005)</a> commented that the phenotype was similar to that of Duchenne muscular dystrophy (DMD; <a href="/entry/310200">310200</a>).</p>
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<a id="genotypePhenotypeCorrelations" class="mim-anchor"></a>
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<p><a href="#11" class="mim-tip-reference" title="Passos-Bueno, M. R., Vainzof, M., Moreira, E. S., Zatz, M. &lt;strong&gt;Seven autosomal recessive limb-girdle muscular dystrophies in the Brazilian population: from LGMD2A to LGMD2G.&lt;/strong&gt; Am. J. Med. Genet. 82: 392-398, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10069710/&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;10069710&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/(sici)1096-8628(19990219)82:5&lt;392::aid-ajmg7&gt;3.0.co;2-0&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="10069710">Passos-Bueno et al. (1999)</a> studied 140 patients from 40 Brazilian families with one of 7 autosomal recessive limb-girdle muscular dystrophies (LGMDs). All LGMD2E and LGMD2F (LGMDR6; <a href="/entry/601287">601287</a>) patients had a severe phenotype; considerable inter- and intrafamilial variability was observed in all other types of LGMD. Among the sarcoglycanopathies, serum CK levels were highest in the LGMD2D (LGMDR3; <a href="/entry/608099">608099</a>) patients. Comparison between 40 LGMD2A (LGMDR1; <a href="/entry/253600">253600</a>) patients and 52 LGMD2B (LGMDR2; <a href="/entry/253601">253601</a>) patients showed that LGMD2A patients had a more severe course and higher frequency of calf hypertrophy (86% vs 13%), and that LGMD2B patients were more likely to be unable to walk on toes (70% vs 18%). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10069710" 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="Alonso-Perez, J., Gonzalez-Quereda, L., Bello, L., Guglieri, M., Straub, V., Gallano, P., Semplicini, C., Pegoraro, E., Zangaro, V., Nascimento, A., Ortez, C., Comi, G. P., and 48 others. &lt;strong&gt;New genotype-phenotype correlations in a large European cohort of patients with sarcoglycanopathy.&lt;/strong&gt; Brain 143: 2696-2708, 2020. Note: Erratum: Brain 146: e9, 2023.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/32875335/&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;32875335&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/brain/awaa228&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="32875335">Alonso-Perez et al. (2020)</a> reviewed genotype-phenotype correlations in 396 patients with a sarcoglycanopathy from 13 European countries, of whom 159 patients had a confirmed diagnosis of LGMDR3, 73 of LGMDR4, 157 of LGMDR5 (<a href="/entry/253700">253700</a>), and 7 of LGMDR6 (<a href="/entry/601287">601287</a>). Patients with LGMDR3 had a later onset and slower progression of the disease. Cardiac involvement was most frequent in LGMDR4. Onset of symptoms before 10 years of age and residual protein expression lower than 30% were identified as independent risk factors for losing ambulation before 18 years of age in LGMDR3, LGMDR4, and LGMDR5 patients. The most common mutation in LGMDR4 patients was c.341C-T. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=32875335" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><a href="#7" class="mim-tip-reference" title="Jackson, C. E., Carey, J. H. &lt;strong&gt;Progressive muscular dystrophy: autosomal recessive type.&lt;/strong&gt; Pediatrics 28: 77-84, 1961.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/13718465/&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;13718465&lt;/a&gt;]" pmid="13718465">Jackson and Carey (1961)</a> reported autosomal recessive limb-girdle muscular dystrophy in 7 nuclear families among the Old Order Amish in northern Indiana. The maternal and paternal lines had common ancestors: 2 brothers married sisters in the early 1800s. These families were later shown to map to chromosome 15q and harbor a common pathogenic mutation in the CAPN3 gene (<a href="/entry/114240#0001">114240.0001</a>), consistent with LGMD2A (<a href="#13" class="mim-tip-reference" title="Richard, I., Broux, O., Allamand, V., Fougerousse, F., Chiannilkulchai, N., Bourg, N., Brenguier, L., Devaud, C., Pasturaud, P., Roudaut, C., Hillaire, D., Passos-Bueno, M.-R., Zatz, M., Tischfield, J. A., Fardeau, M., Jackson, C. E., Cohen, D., Beckmann, J. S. &lt;strong&gt;Mutations in the proteolytic enzyme calpain 3 cause limb-girdle muscular dystrophy type 2A.&lt;/strong&gt; Cell 81: 27-40, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7720071/&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;7720071&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/0092-8674(95)90368-2&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="7720071">Richard et al., 1995</a>). <a href="#1" class="mim-tip-reference" title="Allamand, V., Broux, O., Bourg, N., Richard, I., Tischfield, J. A., Hodes, M. E., Conneally, P. M., Fardeau, M., Jackson, C. E., Beckmann, J. S. &lt;strong&gt;Genetic heterogeneity of autosomal recessive limb-girdle muscular dystrophy in a genetic isolate (Amish) and evidence for a new locus.&lt;/strong&gt; Hum. Molec. Genet. 4: 459-463, 1995.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7795603/&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;7795603&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/4.3.459&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="7795603">Allamand et al. (1995)</a> noted that the Amish families from northern and southern Indiana were interrelated by multiple consanguineous links and had a common ancestry that could be traced to the canton of Bern, Switzerland, where limb-girdle muscular dystrophy also has a high frequency (<a href="#16" class="mim-tip-reference" title="Young, K., Foroud, T., Williams, P., Jackson, C. E., Beckmann, J. S., Cohen, D., Conneally, P. M., Tischfield, J., Hodes, M. E. &lt;strong&gt;Confirmation of linkage of limb-girdle muscular dystrophy, type 2, to chromosome 15.&lt;/strong&gt; Genomics 13: 1370-1371, 1992.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/1505977/&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;1505977&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/0888-7543(92)90074-3&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="1505977">Young et al., 1992</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=7720071+1505977+7795603+13718465" 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="animalModel" class="mim-anchor"></a>
<h4 href="#mimAnimalModelFold" id="mimAnimalModelToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Animal Model</strong>
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<p><a href="#3" class="mim-tip-reference" title="Araishi, K., Sasaoka, T., Imamura, M., Noguchi, S., Hama, H., Wakabayashi, E., Yoshida, M., Hori, T., Ozawa, E. &lt;strong&gt;Loss of the sarcoglycan complex and sarcospan leads to muscular dystrophy in beta-sarcoglycan-deficient mice.&lt;/strong&gt; Hum. Molec. Genet. 8: 1589-1598, 1999.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10441321/&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;10441321&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/8.9.1589&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="10441321">Araishi et al. (1999)</a> developed a beta-sarcoglycan (BSG)-deficient transgenic mouse by incorporating a vector whose BSG insert lacked exon 2, which encodes the intracellular and transmembrane domains of the protein. The BSG -/- mice exhibited progressive muscular dystrophy, with extensive degeneration and regeneration of myofibers seen histologically. The BSG -/- mice also exhibited muscular hypertrophy characteristic of beta-sarcoglycanopathy in humans. Immunohistochemical and immunoblot analyses of BSG -/- mouse muscle demonstrated that deficiency of beta-sarcoglycan also caused loss of all other sarcoglycans as well as loss of sarcospan (<a href="/entry/601599">601599</a>) in the sarcolemma, similar to the findings of <a href="#5" class="mim-tip-reference" title="Bonnemann, C. G., Modi, R., Noguchi, S., Mizuno, Y., Yoshida, M., Gussoni, E., McNally, E. M., Duggan, D. J., Angelini, C., Hoffman, E. P., Ozawa, E., Kunkel, L. M. &lt;strong&gt;Beta-sarcoglycan (A3b) mutations cause autosomal recessive muscular dystrophy with loss of the sarcoglycan complex.&lt;/strong&gt; Nature Genet. 11: 266-273, 1995. Note: Erratum: Nature Genet. 12: 110 only, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7581449/&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;7581449&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1195-266&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="7581449">Bonnemann et al. (1995)</a>. On the other hand, laminin-alpha-2 (<a href="/entry/156225">156225</a>), alpha- and beta-dystroglycan (see <a href="/entry/128239">128239</a>), and dystrophin were present in the sarcolemma. In addition, the dystrophin-dystroglycan complex in BSG -/- mice was either unstably assembled or easily dissociable compared to the complex in wildtype mice. The authors concluded that loss of the sarcoglycan complex and sarcospan alone is sufficient to cause muscular dystrophy, that beta-sarcoglycan is an important protein for formation of the sarcoglycan complex associated with sarcospan, and that the role of the sarcoglycan complex and sarcospan may be to strengthen the dystrophin axis connecting the basement membrane with the cytoskeleton. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=7581449+10441321" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="references"class="mim-anchor"></a>
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<span class="mim-font">
<span id="mimReferencesToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>REFERENCES</strong>
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</div>
<div id="mimReferencesFold" class="collapse in mimTextToggleFold">
<ol>
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<a id="1" class="mim-anchor"></a>
<a id="Allamand1995" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Allamand, V., Broux, O., Bourg, N., Richard, I., Tischfield, J. A., Hodes, M. E., Conneally, P. M., Fardeau, M., Jackson, C. E., Beckmann, J. S.
<strong>Genetic heterogeneity of autosomal recessive limb-girdle muscular dystrophy in a genetic isolate (Amish) and evidence for a new locus.</strong>
Hum. Molec. Genet. 4: 459-463, 1995.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/7795603/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">7795603</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7795603" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/hmg/4.3.459" target="_blank">Full Text</a>]
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<a id="2" class="mim-anchor"></a>
<a id="Alonso-Perez2020" class="mim-anchor"></a>
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<p class="mim-text-font">
Alonso-Perez, J., Gonzalez-Quereda, L., Bello, L., Guglieri, M., Straub, V., Gallano, P., Semplicini, C., Pegoraro, E., Zangaro, V., Nascimento, A., Ortez, C., Comi, G. P., and 48 others.
<strong>New genotype-phenotype correlations in a large European cohort of patients with sarcoglycanopathy.</strong>
Brain 143: 2696-2708, 2020. Note: Erratum: Brain 146: e9, 2023.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/32875335/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">32875335</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=32875335" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/brain/awaa228" target="_blank">Full Text</a>]
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<a id="3" class="mim-anchor"></a>
<a id="Araishi1999" class="mim-anchor"></a>
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<p class="mim-text-font">
Araishi, K., Sasaoka, T., Imamura, M., Noguchi, S., Hama, H., Wakabayashi, E., Yoshida, M., Hori, T., Ozawa, E.
<strong>Loss of the sarcoglycan complex and sarcospan leads to muscular dystrophy in beta-sarcoglycan-deficient mice.</strong>
Hum. Molec. Genet. 8: 1589-1598, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10441321/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10441321</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10441321" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/hmg/8.9.1589" target="_blank">Full Text</a>]
</p>
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<a id="4" class="mim-anchor"></a>
<a id="Barresi2000" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Barresi, R., Di Blasi, C., Negri, T., Brugnoni, R., Vitali, A., Felisari, G., Salandi, A., Daniel, S., Cornelio, F., Morandi, L., Mora, M.
<strong>Disruption of heart sarcoglycan complex and severe cardiomyopathy caused by beta sarcoglycan mutations.</strong>
J. Med. Genet. 37: 102-107, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10662809/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10662809</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10662809" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1136/jmg.37.2.102" target="_blank">Full Text</a>]
</p>
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<a id="5" class="mim-anchor"></a>
<a id="Bonnemann1995" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Bonnemann, C. G., Modi, R., Noguchi, S., Mizuno, Y., Yoshida, M., Gussoni, E., McNally, E. M., Duggan, D. J., Angelini, C., Hoffman, E. P., Ozawa, E., Kunkel, L. M.
<strong>Beta-sarcoglycan (A3b) mutations cause autosomal recessive muscular dystrophy with loss of the sarcoglycan complex.</strong>
Nature Genet. 11: 266-273, 1995. Note: Erratum: Nature Genet. 12: 110 only, 1996.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/7581449/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">7581449</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7581449" 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/ng1195-266" target="_blank">Full Text</a>]
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<a id="6" class="mim-anchor"></a>
<a id="Bonnemann1996" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Bonnemann, C. G., Passos-Bueno, M. R., McNally, E. M., Vainzof, M., Moreira, E. S., Marie, S. K., Pavanello, R. C. M., Noguchi, S., Ozawa, E., Zatz, M., Kunkel, L. M.
<strong>Genomic screening for beta-sarcoglycan gene mutations: missense mutations may cause severe limb-girdle muscular dystrophy type 2E (LGMD 2E).</strong>
Hum. Molec. Genet. 5: 1953-1961, 1996.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8968749/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8968749</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8968749" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1093/hmg/5.12.1953" target="_blank">Full Text</a>]
</p>
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<a id="7" class="mim-anchor"></a>
<a id="Jackson1961" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Jackson, C. E., Carey, J. H.
<strong>Progressive muscular dystrophy: autosomal recessive type.</strong>
Pediatrics 28: 77-84, 1961.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/13718465/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">13718465</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=13718465" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
</p>
</div>
</li>
<li>
<a id="8" class="mim-anchor"></a>
<a id="Jackson1968" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Jackson, C. E., Strehler, D. A.
<strong>Limb-girdle muscular dystrophy: clinical manifestations and detection of preclinical disease.</strong>
Pediatrics 41: 495-502, 1968.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/5637795/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">5637795</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=5637795" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
</p>
</div>
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<a id="9" class="mim-anchor"></a>
<a id="Kaindl2005" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Kaindl, A. M., Jakubiczka, S., Lucke, T., Bartsch, O., Weis, J., Stoltenburg-Didinger, G., Aksu, F., Oexle, K., Koehler, K., Huebner, A.
<strong>Homozygous microdeletion of chromosome 4q11-q12 causes severe limb-girdle muscular dystrophy type 2E with joint hyperlaxity and contractures. (Abstract)</strong>
Hum. Mutat. 26: 279-280, 2005. Note: Full article online.
</p>
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<a id="10" class="mim-anchor"></a>
<a id="Lim1995" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Lim, L. E., Duclos, F., Broux, O., Bourg, N., Sunada, Y., Allamand, V., Meyer, J., Richard, I., Moomaw, C., Slaughter, C., Tome, F. M. S., Fardeau, M., Jackson, C. E., Beckmann, J. S., Campbell, K. P.
<strong>Beta-sarcoglycan: characterization and role in limb-girdle muscular dystrophy linked to 4q12.</strong>
Nature Genet. 11: 257-265, 1995.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/7581448/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">7581448</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7581448" 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/ng1195-257" target="_blank">Full Text</a>]
</p>
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<a id="11" class="mim-anchor"></a>
<a id="Passos-Bueno1999" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Passos-Bueno, M. R., Vainzof, M., Moreira, E. S., Zatz, M.
<strong>Seven autosomal recessive limb-girdle muscular dystrophies in the Brazilian population: from LGMD2A to LGMD2G.</strong>
Am. J. Med. Genet. 82: 392-398, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10069710/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10069710</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10069710" 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/(sici)1096-8628(19990219)82:5&lt;392::aid-ajmg7&gt;3.0.co;2-0" target="_blank">Full Text</a>]
</p>
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<a id="12" class="mim-anchor"></a>
<a id="Pegoraro1999" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Pegoraro, E., Fanin, M., Angelini, C., Hoffman, E. P.
<strong>Prenatal diagnosis in a family affected with beta-sarcoglycan muscular dystrophy.</strong>
Neuromusc. Disord. 9: 323-325, 1999.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10407854/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10407854</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10407854" 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/s0960-8966(99)00020-6" target="_blank">Full Text</a>]
</p>
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<a id="13" class="mim-anchor"></a>
<a id="Richard1995" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Richard, I., Broux, O., Allamand, V., Fougerousse, F., Chiannilkulchai, N., Bourg, N., Brenguier, L., Devaud, C., Pasturaud, P., Roudaut, C., Hillaire, D., Passos-Bueno, M.-R., Zatz, M., Tischfield, J. A., Fardeau, M., Jackson, C. E., Cohen, D., Beckmann, J. S.
<strong>Mutations in the proteolytic enzyme calpain 3 cause limb-girdle muscular dystrophy type 2A.</strong>
Cell 81: 27-40, 1995.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/7720071/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">7720071</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7720071" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/0092-8674(95)90368-2" target="_blank">Full Text</a>]
</p>
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<a id="14" class="mim-anchor"></a>
<a id="Straub2018" class="mim-anchor"></a>
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<p class="mim-text-font">
Straub, V., Murphy, A., Udd, B.
<strong>229th ENMC international workshop: limb girdle muscular dystrophies--nomenclature and reformed classification, Naarden, the Netherlands, 17-19 March 2017.</strong>
Neuromusc. Disord. 28: 702-710, 2018.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/30055862/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">30055862</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=30055862" 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.nmd.2018.05.007" target="_blank">Full Text</a>]
</p>
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<a id="15" class="mim-anchor"></a>
<a id="Trabelsi2008" class="mim-anchor"></a>
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Trabelsi, M., Kavian, N., Daoud, F., Commere, V., Deburgrave, N., Beugnet, C., Llense, S., Barbot, J. C., Vasson, A., Kaplan, J. C., Leturcq, F., Chelly, J.
<strong>Revised spectrum of mutations in sarcoglycanopathies.</strong>
Europ. J. Hum. Genet. 16: 793-803, 2008.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/18285821/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">18285821</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=18285821" 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/ejhg.2008.9" target="_blank">Full Text</a>]
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<a id="Young1992" class="mim-anchor"></a>
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Young, K., Foroud, T., Williams, P., Jackson, C. E., Beckmann, J. S., Cohen, D., Conneally, P. M., Tischfield, J., Hodes, M. E.
<strong>Confirmation of linkage of limb-girdle muscular dystrophy, type 2, to chromosome 15.</strong>
Genomics 13: 1370-1371, 1992.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/1505977/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">1505977</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=1505977" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/0888-7543(92)90074-3" target="_blank">Full Text</a>]
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Carol A. Bocchini - updated : 10/17/2022
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Cassandra L. Kniffin - updated : 5/27/2009<br>Cassandra L. Kniffin - updated : 1/23/2009<br>Michael J. Wright - updated : 8/25/2000
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Creation Date:
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George E. Tiller : 11/8/1999
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carol : 10/31/2023
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carol : 06/12/2023<br>carol : 06/09/2023<br>carol : 06/09/2023<br>carol : 01/21/2023<br>carol : 10/18/2022<br>carol : 10/17/2022<br>carol : 01/16/2019<br>carol : 09/26/2018<br>carol : 09/25/2018<br>carol : 05/17/2016<br>wwang : 6/5/2009<br>ckniffin : 5/27/2009<br>wwang : 1/30/2009<br>ckniffin : 1/23/2009<br>ckniffin : 9/10/2004<br>ckniffin : 9/23/2003<br>alopez : 4/30/2002<br>carol : 3/13/2002<br>carol : 11/2/2000<br>alopez : 8/25/2000<br>alopez : 11/8/1999<br>alopez : 11/8/1999
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<span class="mim-font">
<strong>#</strong> 604286
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<span class="mim-font">
MUSCULAR DYSTROPHY, LIMB-GIRDLE, AUTOSOMAL RECESSIVE 4; LGMDR4
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<em>Alternative titles; symbols</em>
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MUSCULAR DYSTROPHY, LIMB-GIRDLE, TYPE 2E; LGMD2E
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<strong>SNOMEDCT:</strong> 718850008; &nbsp;
<strong>ICD10CM:</strong> G71.0342; &nbsp;
<strong>ORPHA:</strong> 119; &nbsp;
<strong>DO:</strong> 0110279; &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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4q12
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Muscular dystrophy, limb-girdle, autosomal recessive 4
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604286
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Autosomal recessive
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3
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SGCB
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600900
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because autosomal recessive limb-girdle muscular dystrophy-4 (LGMDR4) is caused by homozygous or compound heterozygous mutation in the gene encoding beta-sarcoglycan (SGCB; 600900) on chromosome 4q12.</p>
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<strong>Description</strong>
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<p>Limb-girdle muscular dystrophies are characterized clinically by predominantly proximal muscle weakness of variable severity and dystrophic changes on muscle biopsy. LGMDR4 is in general a severe form of the disorder, with some patients developing symptoms before 8 years of age and losing the ability to ambulate in their second decade. Some patients have a milder course, with weakness evident in the teenage years and loss of walking ability in their fourth decade (summary by Lim et al., 1995 and Bonnemann et al., 1996). </p><p>For a general phenotypic description and a discussion of genetic heterogeneity of autosomal recessive limb-girdle muscular dystrophy, see LGMDR1 (253600).</p>
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<strong>Nomenclature</strong>
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<p>At the 229th ENMC international workshop, Straub et al. (2018) reviewed, reclassified, and/or renamed forms of LGMD. The proposed naming formula was 'LGMD, inheritance (R or D), order of discovery (number), affected protein.' Under this formula, LGMD2E was renamed LGMDR4. </p>
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<strong>Clinical Features</strong>
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<p>Jackson and Strehler (1968) reported 5 nuclear Old Amish families from southern Indiana with autosomal recessive limb-girdle muscular dystrophy. The families showed links to an ancestral couple born in the late 1700s (Allamand et al., 1995). In 6 Amish families with LGMD from southern Indiana, Allamand et al. (1995) excluded linkage to the LGMD2A (LGMDR1; 253600) locus on chromosome 15q. Lim et al. (1995) reported the clinical features of 11 Amish patients from southern Indiana with autosomal recessive LGMD. All patients presented with proximal symmetric weakness and atrophy of the limb and trunk muscles. The average age at onset was 7.6 years (range 4 to 12), and loss of walking occurred between 12 and 38 years. Calf hypertrophy was also observed. There was marked intrafamilial variability. </p><p>Bonnemann et al. (1995) described a young girl with autosomal recessive LGMD. Immunostaining of her muscle biopsy showed specific loss of several components of the sarcoglycan complex: beta-sarcoglycan, alpha-sarcoglycan (SGCA; 600119), and 35-kD sarcoglycan (SGCD; 601411). Thus, secondary destabilization of the sarcoglycan complex is an important pathophysiologic event in autosomal recessive muscular dystrophy. Genetic analysis identified compound heterozygosity for 2 truncating mutations in the SGCB gene (600900.0002, 600900.0003). </p><p>Barresi et al. (2000) reported 2 unrelated males with LGMD2E who developed fatal dilated cardiomyopathy and died at ages 27 and 18 years, respectively. The affected first-cousin of 1 of the patients did not have cardiomyopathy. Both heart and skeletal muscle biopsies showed reductions in gamma- (SGCG; 608896) and alpha-sarcoglycan, confirming that mutations in 1 sarcoglycan gene can disrupt the whole dystrophin (DMD; 300377)-associated glycoprotein (DAG) complex. Barresi et al. (2000) concluded that cardiac function should be monitored in patients with LGMD and defective sarcoglycan expression. Molecular analysis identified compound heterozygous mutations in the SGCB gene in 1 patient (600900.0003; 600900.0009). </p>
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<strong>Diagnosis</strong>
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<p><strong><em>Prenatal Diagnosis</em></strong></p><p>
Pegoraro et al. (1999) reported the first prenatal diagnosis of LGMD2E by direct gene mutation detection. </p>
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<strong>Mapping</strong>
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<p>Using pericentromeric markers and an intragenic polymorphic CA repeat on chromosome 4q12, Lim et al. (1995) demonstrated perfect cosegregation with autosomal recessive limb-girdle muscular dystrophy in Amish families from southern Indiana. </p>
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<strong>Inheritance</strong>
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<p>The transmission pattern of LGMDR4 in the families reported by Lim et al. (1995) was consistent with autosomal recessive inheritance. </p>
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<strong>Molecular Genetics</strong>
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<p>In affected members of several Amish families with autosomal recessive LGMD, Lim et al. (1995) identified a homozygous mutation in the SGCB gene (600900.0001). Skeletal muscle biopsy showed a dramatic reduction in SGCB expression in the sarcolemma and a concomitant loss of adhalin (SGCA; 600119) and 35-DAG (SGCD; 601411), which was interpreted as representing a disruption of a functional subcomplex within the dystrophin-glycoprotein complex. </p><p>Bonnemann et al. (1996) identified novel mutations in the SGCB gene in 2 familial and 2 sporadic cases of severe childhood-onset LGMD. One patient carried a truncating mutation (600900.0004); the other 3 patients had missense mutations in exon 3. </p><p>Trabelsi et al. (2008) identified biallelic mutations in sarcoglycan genes in 46 (67%) of 69 patients with a clinical diagnosis of autosomal recessive LGMD. Twenty-six (56.5%) patients had SGCA mutations, 8 (17.3%) had SGCB mutations, and 12 (26%) had SGCG mutations. Seven of the 9 SGCB mutations were novel. </p>
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<strong>Cytogenetics</strong>
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<p>Kaindl et al. (2005) identified a homozygous 400-kb microdeletion of chromosome 4q11-q12 in 6 members of a consanguineous East Anatolian family with a severe form of LGMD2E with joint hyperlaxity and contractures. The deleted region included both the SGCB and SPATA18 (612814) genes. Other clinical features included onset between birth and 5 years, myopathic facies, and scoliosis. The proband had delayed motor development and lost the ability to walk by age 10 years. She had restrictive respiratory insufficiency, mild diastolic dysfunction of both ventricles, increased serum creatine kinase, type 2 diabetes mellitus, and polycystic ovary syndrome (PCOS; 184700). Three affected family members died of heart failure at ages 20, 30, and 35 years, respectively. Kaindl et al. (2005) commented that the phenotype was similar to that of Duchenne muscular dystrophy (DMD; 310200).</p>
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<strong>Genotype/Phenotype Correlations</strong>
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<p>Passos-Bueno et al. (1999) studied 140 patients from 40 Brazilian families with one of 7 autosomal recessive limb-girdle muscular dystrophies (LGMDs). All LGMD2E and LGMD2F (LGMDR6; 601287) patients had a severe phenotype; considerable inter- and intrafamilial variability was observed in all other types of LGMD. Among the sarcoglycanopathies, serum CK levels were highest in the LGMD2D (LGMDR3; 608099) patients. Comparison between 40 LGMD2A (LGMDR1; 253600) patients and 52 LGMD2B (LGMDR2; 253601) patients showed that LGMD2A patients had a more severe course and higher frequency of calf hypertrophy (86% vs 13%), and that LGMD2B patients were more likely to be unable to walk on toes (70% vs 18%). </p><p>Alonso-Perez et al. (2020) reviewed genotype-phenotype correlations in 396 patients with a sarcoglycanopathy from 13 European countries, of whom 159 patients had a confirmed diagnosis of LGMDR3, 73 of LGMDR4, 157 of LGMDR5 (253700), and 7 of LGMDR6 (601287). Patients with LGMDR3 had a later onset and slower progression of the disease. Cardiac involvement was most frequent in LGMDR4. Onset of symptoms before 10 years of age and residual protein expression lower than 30% were identified as independent risk factors for losing ambulation before 18 years of age in LGMDR3, LGMDR4, and LGMDR5 patients. The most common mutation in LGMDR4 patients was c.341C-T. </p>
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<h4>
<span class="mim-font">
<strong>Population Genetics</strong>
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<p>Jackson and Carey (1961) reported autosomal recessive limb-girdle muscular dystrophy in 7 nuclear families among the Old Order Amish in northern Indiana. The maternal and paternal lines had common ancestors: 2 brothers married sisters in the early 1800s. These families were later shown to map to chromosome 15q and harbor a common pathogenic mutation in the CAPN3 gene (114240.0001), consistent with LGMD2A (Richard et al., 1995). Allamand et al. (1995) noted that the Amish families from northern and southern Indiana were interrelated by multiple consanguineous links and had a common ancestry that could be traced to the canton of Bern, Switzerland, where limb-girdle muscular dystrophy also has a high frequency (Young et al., 1992). </p>
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<strong>Animal Model</strong>
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<p>Araishi et al. (1999) developed a beta-sarcoglycan (BSG)-deficient transgenic mouse by incorporating a vector whose BSG insert lacked exon 2, which encodes the intracellular and transmembrane domains of the protein. The BSG -/- mice exhibited progressive muscular dystrophy, with extensive degeneration and regeneration of myofibers seen histologically. The BSG -/- mice also exhibited muscular hypertrophy characteristic of beta-sarcoglycanopathy in humans. Immunohistochemical and immunoblot analyses of BSG -/- mouse muscle demonstrated that deficiency of beta-sarcoglycan also caused loss of all other sarcoglycans as well as loss of sarcospan (601599) in the sarcolemma, similar to the findings of Bonnemann et al. (1995). On the other hand, laminin-alpha-2 (156225), alpha- and beta-dystroglycan (see 128239), and dystrophin were present in the sarcolemma. In addition, the dystrophin-dystroglycan complex in BSG -/- mice was either unstably assembled or easily dissociable compared to the complex in wildtype mice. The authors concluded that loss of the sarcoglycan complex and sarcospan alone is sufficient to cause muscular dystrophy, that beta-sarcoglycan is an important protein for formation of the sarcoglycan complex associated with sarcospan, and that the role of the sarcoglycan complex and sarcospan may be to strengthen the dystrophin axis connecting the basement membrane with the cytoskeleton. </p>
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<span class="mim-font">
<strong>REFERENCES</strong>
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<ol>
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<p class="mim-text-font">
Allamand, V., Broux, O., Bourg, N., Richard, I., Tischfield, J. A., Hodes, M. E., Conneally, P. M., Fardeau, M., Jackson, C. E., Beckmann, J. S.
<strong>Genetic heterogeneity of autosomal recessive limb-girdle muscular dystrophy in a genetic isolate (Amish) and evidence for a new locus.</strong>
Hum. Molec. Genet. 4: 459-463, 1995.
[PubMed: 7795603]
[Full Text: https://doi.org/10.1093/hmg/4.3.459]
</p>
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<li>
<p class="mim-text-font">
Alonso-Perez, J., Gonzalez-Quereda, L., Bello, L., Guglieri, M., Straub, V., Gallano, P., Semplicini, C., Pegoraro, E., Zangaro, V., Nascimento, A., Ortez, C., Comi, G. P., and 48 others.
<strong>New genotype-phenotype correlations in a large European cohort of patients with sarcoglycanopathy.</strong>
Brain 143: 2696-2708, 2020. Note: Erratum: Brain 146: e9, 2023.
[PubMed: 32875335]
[Full Text: https://doi.org/10.1093/brain/awaa228]
</p>
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<li>
<p class="mim-text-font">
Araishi, K., Sasaoka, T., Imamura, M., Noguchi, S., Hama, H., Wakabayashi, E., Yoshida, M., Hori, T., Ozawa, E.
<strong>Loss of the sarcoglycan complex and sarcospan leads to muscular dystrophy in beta-sarcoglycan-deficient mice.</strong>
Hum. Molec. Genet. 8: 1589-1598, 1999.
[PubMed: 10441321]
[Full Text: https://doi.org/10.1093/hmg/8.9.1589]
</p>
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<li>
<p class="mim-text-font">
Barresi, R., Di Blasi, C., Negri, T., Brugnoni, R., Vitali, A., Felisari, G., Salandi, A., Daniel, S., Cornelio, F., Morandi, L., Mora, M.
<strong>Disruption of heart sarcoglycan complex and severe cardiomyopathy caused by beta sarcoglycan mutations.</strong>
J. Med. Genet. 37: 102-107, 2000.
[PubMed: 10662809]
[Full Text: https://doi.org/10.1136/jmg.37.2.102]
</p>
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<li>
<p class="mim-text-font">
Bonnemann, C. G., Modi, R., Noguchi, S., Mizuno, Y., Yoshida, M., Gussoni, E., McNally, E. M., Duggan, D. J., Angelini, C., Hoffman, E. P., Ozawa, E., Kunkel, L. M.
<strong>Beta-sarcoglycan (A3b) mutations cause autosomal recessive muscular dystrophy with loss of the sarcoglycan complex.</strong>
Nature Genet. 11: 266-273, 1995. Note: Erratum: Nature Genet. 12: 110 only, 1996.
[PubMed: 7581449]
[Full Text: https://doi.org/10.1038/ng1195-266]
</p>
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<li>
<p class="mim-text-font">
Bonnemann, C. G., Passos-Bueno, M. R., McNally, E. M., Vainzof, M., Moreira, E. S., Marie, S. K., Pavanello, R. C. M., Noguchi, S., Ozawa, E., Zatz, M., Kunkel, L. M.
<strong>Genomic screening for beta-sarcoglycan gene mutations: missense mutations may cause severe limb-girdle muscular dystrophy type 2E (LGMD 2E).</strong>
Hum. Molec. Genet. 5: 1953-1961, 1996.
[PubMed: 8968749]
[Full Text: https://doi.org/10.1093/hmg/5.12.1953]
</p>
</li>
<li>
<p class="mim-text-font">
Jackson, C. E., Carey, J. H.
<strong>Progressive muscular dystrophy: autosomal recessive type.</strong>
Pediatrics 28: 77-84, 1961.
[PubMed: 13718465]
</p>
</li>
<li>
<p class="mim-text-font">
Jackson, C. E., Strehler, D. A.
<strong>Limb-girdle muscular dystrophy: clinical manifestations and detection of preclinical disease.</strong>
Pediatrics 41: 495-502, 1968.
[PubMed: 5637795]
</p>
</li>
<li>
<p class="mim-text-font">
Kaindl, A. M., Jakubiczka, S., Lucke, T., Bartsch, O., Weis, J., Stoltenburg-Didinger, G., Aksu, F., Oexle, K., Koehler, K., Huebner, A.
<strong>Homozygous microdeletion of chromosome 4q11-q12 causes severe limb-girdle muscular dystrophy type 2E with joint hyperlaxity and contractures. (Abstract)</strong>
Hum. Mutat. 26: 279-280, 2005. Note: Full article online.
</p>
</li>
<li>
<p class="mim-text-font">
Lim, L. E., Duclos, F., Broux, O., Bourg, N., Sunada, Y., Allamand, V., Meyer, J., Richard, I., Moomaw, C., Slaughter, C., Tome, F. M. S., Fardeau, M., Jackson, C. E., Beckmann, J. S., Campbell, K. P.
<strong>Beta-sarcoglycan: characterization and role in limb-girdle muscular dystrophy linked to 4q12.</strong>
Nature Genet. 11: 257-265, 1995.
[PubMed: 7581448]
[Full Text: https://doi.org/10.1038/ng1195-257]
</p>
</li>
<li>
<p class="mim-text-font">
Passos-Bueno, M. R., Vainzof, M., Moreira, E. S., Zatz, M.
<strong>Seven autosomal recessive limb-girdle muscular dystrophies in the Brazilian population: from LGMD2A to LGMD2G.</strong>
Am. J. Med. Genet. 82: 392-398, 1999.
[PubMed: 10069710]
[Full Text: https://doi.org/10.1002/(sici)1096-8628(19990219)82:5&lt;392::aid-ajmg7&gt;3.0.co;2-0]
</p>
</li>
<li>
<p class="mim-text-font">
Pegoraro, E., Fanin, M., Angelini, C., Hoffman, E. P.
<strong>Prenatal diagnosis in a family affected with beta-sarcoglycan muscular dystrophy.</strong>
Neuromusc. Disord. 9: 323-325, 1999.
[PubMed: 10407854]
[Full Text: https://doi.org/10.1016/s0960-8966(99)00020-6]
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</li>
<li>
<p class="mim-text-font">
Richard, I., Broux, O., Allamand, V., Fougerousse, F., Chiannilkulchai, N., Bourg, N., Brenguier, L., Devaud, C., Pasturaud, P., Roudaut, C., Hillaire, D., Passos-Bueno, M.-R., Zatz, M., Tischfield, J. A., Fardeau, M., Jackson, C. E., Cohen, D., Beckmann, J. S.
<strong>Mutations in the proteolytic enzyme calpain 3 cause limb-girdle muscular dystrophy type 2A.</strong>
Cell 81: 27-40, 1995.
[PubMed: 7720071]
[Full Text: https://doi.org/10.1016/0092-8674(95)90368-2]
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</li>
<li>
<p class="mim-text-font">
Straub, V., Murphy, A., Udd, B.
<strong>229th ENMC international workshop: limb girdle muscular dystrophies--nomenclature and reformed classification, Naarden, the Netherlands, 17-19 March 2017.</strong>
Neuromusc. Disord. 28: 702-710, 2018.
[PubMed: 30055862]
[Full Text: https://doi.org/10.1016/j.nmd.2018.05.007]
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</li>
<li>
<p class="mim-text-font">
Trabelsi, M., Kavian, N., Daoud, F., Commere, V., Deburgrave, N., Beugnet, C., Llense, S., Barbot, J. C., Vasson, A., Kaplan, J. C., Leturcq, F., Chelly, J.
<strong>Revised spectrum of mutations in sarcoglycanopathies.</strong>
Europ. J. Hum. Genet. 16: 793-803, 2008.
[PubMed: 18285821]
[Full Text: https://doi.org/10.1038/ejhg.2008.9]
</p>
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<li>
<p class="mim-text-font">
Young, K., Foroud, T., Williams, P., Jackson, C. E., Beckmann, J. S., Cohen, D., Conneally, P. M., Tischfield, J., Hodes, M. E.
<strong>Confirmation of linkage of limb-girdle muscular dystrophy, type 2, to chromosome 15.</strong>
Genomics 13: 1370-1371, 1992.
[PubMed: 1505977]
[Full Text: https://doi.org/10.1016/0888-7543(92)90074-3]
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Carol A. Bocchini - updated : 10/17/2022<br>Cassandra L. Kniffin - updated : 5/27/2009<br>Cassandra L. Kniffin - updated : 1/23/2009<br>Michael J. Wright - updated : 8/25/2000
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George E. Tiller : 11/8/1999
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