nih-gov/www.ncbi.nlm.nih.gov/omim/268315

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<title>
Entry
- #268315 - ROD-CONE DYSTROPHY, SENSORINEURAL DEAFNESS, AND FANCONI-TYPE RENAL DYSFUNCTION; RCDFRD
- OMIM
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<span class="h4">#268315</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/268315"><strong>Clinical Synopsis</strong></a>
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<a href="#text"><strong>Text</strong></a>
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<a href="#description">Description</a>
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<a href="#clinicalFeatures">Clinical Features</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#inheritance">Inheritance</a>
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<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#references"><strong>References</strong></a>
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<a href="#contributors"><strong>Contributors</strong></a>
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<div id="mimClinicalResourcesLinksFold" class="panel-collapse collapse in mimLinksFold" role="tabpanel" aria-labelledby="clinicalResources">
<div class="panel-body small mim-panel-body">
<div><a href="https://clinicaltrials.gov/search?cond=(ROD-CONE DYSTROPHY, SENSORINEURAL DEAFNESS, FANCONI-TYPE RENAL DYSFUNCTION) OR (RRM2B)" class="mim-tip-hint" title="Clinical Trials" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Clinical Trials', 'domain': 'clinicaltrials.gov'})">Clinical Trials</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/gtr/all/tests/?term=268315[mim]" class="mim-tip-hint" title="Genetic Testing Registry." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GTR', 'domain': 'ncbi.nlm.nih.gov'})">GTR</a></div>
<div><a href="https://www.possumcore.com/nuxeo/nxdoc/default/66f65fbc-2a70-47a0-a152-8aa3f502821c/view_documents?source=omim" class="mim-tip-hint" title="A dysmorphology database of multiple malformations; metabolic, teratogenic, chromosomal, and skeletal syndromes; and their images." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'POSSUM', 'domain': 'possum.net.au'})">POSSUM</a></div>
</div>
</div>
</div>
</div>
</div>
</div>
<span>
<span class="mim-tip-bottom" qtip_title="<strong>Looking for this gene or this phenotype in other resources?</strong>" qtip_text="Select a related resource from the dropdown menu and click for a targeted link to information directly relevant.">
&nbsp;
</span>
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<div class="col-lg-8 col-lg-pull-2 col-md-8 col-md-pull-2 col-sm-8 col-sm-pull-2 col-xs-12">
<div>
<a id="title" class="mim-anchor"></a>
<div>
<a id="number" class="mim-anchor"></a>
<div class="text-right">
&nbsp;
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<div>
<span class="h3">
<span class="mim-font mim-tip-hint" title="Phenotype description, molecular basis known">
<span class="text-danger"><strong>#</strong></span>
268315
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
ROD-CONE DYSTROPHY, SENSORINEURAL DEAFNESS, AND FANCONI-TYPE RENAL DYSFUNCTION; RCDFRD
</span>
</h3>
</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/8/452?start=-3&limit=10&highlight=452">
8q22.3
</a>
</span>
</td>
<td>
<span class="mim-font">
Rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/268315"> 268315 </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">
RRM2B
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/604712"> 604712 </a>
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="btn-group ">
<a href="/clinicalSynopsis/268315" class="btn btn-warning" role="button"> Clinical Synopsis </a>
<button type="button" id="mimPhenotypicSeriesToggle" class="btn btn-warning dropdown-toggle mimSingletonFoldToggle" data-toggle="collapse" href="#mimClinicalSynopsisFold" onclick="ga('send', 'event', 'Unfurl', 'ClinicalSynopsis', 'omim.org')">
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&nbsp;
<div class="btn-group">
<button type="button" class="btn btn-success dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
PheneGene Graphics <span class="caret"></span>
</button>
<ul class="dropdown-menu" style="width: 17em;">
<li><a href="/graph/linear/268315" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/268315" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Radial'})"> Radial </a></li>
</ul>
</div>
<span class="glyphicon glyphicon-question-sign mim-tip-hint" title="OMIM PheneGene graphics depict relationships between phenotypes, groups of related phenotypes (Phenotypic Series), and genes.<br /><a href='/static/omim/pdf/OMIM_Graphics.pdf' target='_blank'>A quick reference overview and guide (PDF)</a>"></span>
<div>
<p />
</div>
<div id="mimClinicalSynopsisFold" class="well well-sm collapse mimSingletonToggleFold">
<div class="small" style="margin: 5px">
<div>
<div>
<span class="h5 mim-font">
<strong> INHERITANCE </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Autosomal recessive <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/258211005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">258211005</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0441748&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0441748</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000007</a>]</span><br />
</span>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> GROWTH </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Height </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Short stature <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/422065006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">422065006</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237836003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237836003</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/237837007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">237837007</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/E34.31" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">E34.31</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/R62.52" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R62.52</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/783.43" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">783.43</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0349588&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0349588</a>, <a href="https://bioportal.bioontology.org/search?q=C0013336&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0013336</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003510" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003510</a>, <a href="https://hpo.jax.org/app/browse/term/HP:0004322" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004322</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0004322" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0004322</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> HEAD & NECK </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Ears </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Sensorineural hearing loss, progressive <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1843156&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1843156</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000408" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000408</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000408" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000408</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/60700002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">60700002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H90.5" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H90.5</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/389.10" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">389.10</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/389.1" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">389.1</a>]</span><br /> -
Reduced vestibular function <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677943&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677943</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Eyes </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Reduced visual acuity <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/13164000" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">13164000</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0234632&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0234632</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007663" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007663</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007663" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007663</a>]</span><br /> -
Reduced color vision <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677944&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677944</a>]</span><br /> -
Night blindness <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/65194006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">65194006</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H53.6" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H53.6</a>, <a href="https://purl.bioontology.org/ontology/ICD10CM/H53.60" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H53.60</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/368.6" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">368.6</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/368.60" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">368.60</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0028077&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0028077</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000662" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000662</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000662" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000662</a>]</span><br /> -
Cataracts (childhood-onset) <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677945&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677945</a>]</span> <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/193570009" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">193570009</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/247053007" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">247053007</a>, <a href="https://purl.bioontology.org/ontology/SNOMEDCT/95722004" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">95722004</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/H26.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">H26.9</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/366" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">366</a>, <a href="https://purl.bioontology.org/ontology/ICD9CM/366.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">366.9</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000518" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000518</a>]</span><br /> -
Waxy pallor of optic discs <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3279567&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3279567</a>]</span><br /> -
Markedly attenuated retinal vessels <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677946&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677946</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0007843" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0007843</a>]</span><br /> -
Macular scar <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/18410006" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">18410006</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0423428&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0423428</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0200056" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0200056</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0200056" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0200056</a>]</span><br /> -
Choroidal depigmentation of macula and periphery <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677947&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677947</a>]</span><br /> -
Minimal bone-spicule pigmentation in midperiphery <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677948&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677948</a>]</span><br /> -
Cone-rod dystrophy <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C4085590&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C4085590</a>, <a href="https://bioportal.bioontology.org/search?q=C3489532&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3489532</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000548" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000548</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> GENITOURINARY </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<div>
<span class="h5 mim-font">
<em> Kidneys </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Fanconi-type renal tubular disease <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/236469003" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">236469003</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0151638&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0151638</a>]</span><br /> -
Renal failure <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/42399005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">42399005</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/N19" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">N19</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/586" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">586</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0035078&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0035078</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000083" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000083</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000083" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000083</a>]</span><br />
</span>
</div>
</div>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<strong> SKELETAL </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Rickets-like skeletal changes <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677949&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677949</a>]</span><br />
</span>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Spine </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Platyspondyly, mild <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1848999&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1848999</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0000926" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0000926</a>]</span><br /> -
Dysplastic vertebral bodies <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C3807604&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C3807604</a>]</span><br /> -
Irregular vertebral endplates <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1842153&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1842153</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003301" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003301</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003301" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003301</a>]</span><br /> -
Irregular anterior borders of vertebrae <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677950&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677950</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Pelvis </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Irregular margins of iliac crests <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677951&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677951</a>]</span><br /> -
Flattening of femoral heads <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1860601&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1860601</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0008812" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0008812</a>]</span><br />
</span>
</div>
</div>
<div>
<div>
<span class="h5 mim-font">
<em> Limbs </em>
</span>
</div>
<div style="margin-left: 2em;">
<span class="mim-font">
- Malalignment of weight-bearing bones <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677952&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677952</a>]</span><br /> -
Osteoporotic long bones <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677953&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677953</a>]</span><br /> -
Shortening of long bones <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1854912&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1854912</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003026" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003026</a>]</span><br /> -
Bowing of long bones <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1855340&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1855340</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0006487" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0006487</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0006487" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0006487</a>]</span><br /> -
Thinning of cortices of long bones <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1834295&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1834295</a>]</span><br /> -
Flattening of epiphyses <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1857527&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1857527</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003071" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003071</a>]</span><br /> -
Widening of metaphyses <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C1849039&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C1849039</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003016" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003016</a>]</span><br /> -
Genua valga <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/299330008" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">299330008</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/M21.06" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">M21.06</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0576093&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0576093</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002857" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002857</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0002857" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0002857</a>]</span><br /> -
Recurrent long-bone fractures <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0240231&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0240231</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003084" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003084</a>]</span><br />
</span>
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<div>
<div>
<span class="h5 mim-font">
<strong> MUSCLE, SOFT TISSUES </strong>
</span>
</div>
<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Mitochondrial abnormality, mild <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677941&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677941</a>]</span><br />
</span>
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</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">
- Albuminuria <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/274769005" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">274769005</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R80.9" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R80.9</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0001925&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0001925</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0012592" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0012592</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0012592" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0012592</a>]</span><br /> -
Glycosuria (rare) <span class="mim-feature-ids hidden">[SNOMEDCT: <a href="https://purl.bioontology.org/ontology/SNOMEDCT/45154002" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'SNOMEDCT\', \'domain\': \'bioontology.org\'})">45154002</a>]</span> <span class="mim-feature-ids hidden">[ICD10CM: <a href="https://purl.bioontology.org/ontology/ICD10CM/R81" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD10CM\', \'domain\': \'bioontology.org\'})">R81</a>]</span> <span class="mim-feature-ids hidden">[ICD9CM: <a href="https://purl.bioontology.org/ontology/ICD9CM/791.5" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ICD9CM\', \'domain\': \'bioontology.org\'})">791.5</a>]</span> <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C0017979&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C0017979</a> HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003076" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003076</a>]</span> <span class="mim-feature-ids hidden">[HPO: <a href="https://hpo.jax.org/app/browse/term/HP:0003076" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'HPO\', \'domain\': \'hpo.jax.org\'})">HP:0003076</a>]</span><br /> -
Excess urinary potassium excretion <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5678614&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5678614</a>]</span><br /> -
Excess urinary phosphate excretion <span class="mim-feature-ids hidden">[UMLS: <a href="https://bioportal.bioontology.org/search?q=C5677955&searchproperties=true" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'UMLS\', \'domain\': \'bioontology.org\'})">C5677955</a>]</span><br />
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<span class="h5 mim-font">
<strong> MISCELLANEOUS </strong>
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<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Onset before age 5 years<br /> -
Death in childhood or early adulthood due to renal failure<br /> -
All reported patients belong to the Afrikaner population<br />
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<strong> MOLECULAR BASIS </strong>
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<div style="margin-left: 2em;">
<div>
<span class="mim-font">
- Caused by mutation in the ribonucleotide reductase regulatory TP53 inducible subunit M2B gene (<a href="/entry/604712#0016">604712.0016</a>)<br />
</span>
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<a href="#mimClinicalSynopsisFold" data-toggle="collapse">&#9650;&nbsp;Close</a>
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<h4 href="#mimTextFold" id="mimTextToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction (RCDFRD) is caused by homozygous mutation in the RRM2B gene (<a href="/entry/604712">604712</a>) on chromosome 8q22.</p><p>See also autosomal recessive mitochondrial DNA depletion syndrome (<a href="/entry/612075">612075</a>), autosomal dominant progressive external ophthalmoplegia (adPEO) with mitochondrial DNA (mtDNA) deletions-5 (PEOA5; <a href="/entry/613077">613077</a>), both caused by mutations in the RRM2B gene.</p>
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<a id="description" class="mim-anchor"></a>
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<strong>Description</strong>
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<p>Rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction (RCDFRD) is characterized by onset of hearing impairment and reduced vision within the first 5 years of life. Renal dysfunction results in rickets-like skeletal changes, and death may occur in childhood or young adulthood due to renal failure (<a href="#1" class="mim-tip-reference" title="Beighton, P., Bartmann, L., Bingham, G., Sellars, S. &lt;strong&gt;Rod-cone dystrophy, sensorineural deafness, and renal dysfunction: an autosomal recessive syndrome.&lt;/strong&gt; Am. J. Med. Genet. 47: 832-836, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8279480/&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;8279480&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.1320470607&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="8279480">Beighton et al., 1993</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8279480" 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>Clinical Features</strong>
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<p>During a large-scale survey of persons with Usher syndrome (retinitis pigmentosa and sensorineural deafness; see <a href="/entry/276900">276900</a>), <a href="#1" class="mim-tip-reference" title="Beighton, P., Bartmann, L., Bingham, G., Sellars, S. &lt;strong&gt;Rod-cone dystrophy, sensorineural deafness, and renal dysfunction: an autosomal recessive syndrome.&lt;/strong&gt; Am. J. Med. Genet. 47: 832-836, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8279480/&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;8279480&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.1320470607&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="8279480">Beighton et al. (1993)</a> identified 14 children in 9 Afrikaner families in South Africa with a combination of progressive rod-cone dystrophy, sensorineural deafness, and renal dysfunction of the Fanconi type leading to rickets-like skeletal changes and renal failure. Eight of the 11 children had died between the ages of 3 and 20 years; in most patients, the cause of death was reported to be renal failure. Onset of auditory and visual dysfunction was usually before age 5 and invariably before age 10 years. Retinitis pigmentosa or Usher syndrome had initially been diagnosed in every child, and cataracts had been documented as a complicating factor in 4 of the children. Renal dysfunction usually presented with albuminuria during the first 5 years, and the skeletal complications of 'renal rickets' were generally evident during the first decade. A stunted stature and malalignment of the weightbearing bones were the major skeletal manifestations. None of the parents were affected. Although minor changes were found in the eyes of the father of 2 affected sibs, none of the parents were known to be consanguineous. However, <a href="#1" class="mim-tip-reference" title="Beighton, P., Bartmann, L., Bingham, G., Sellars, S. &lt;strong&gt;Rod-cone dystrophy, sensorineural deafness, and renal dysfunction: an autosomal recessive syndrome.&lt;/strong&gt; Am. J. Med. Genet. 47: 832-836, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8279480/&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;8279480&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.1320470607&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="8279480">Beighton et al. (1993)</a> noted that the Afrikaner population, which numbered more than 3 million at the time of the report, is derived from a comparatively small number of founders. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8279480" 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="Roberts, L., Julius, S., Dawlat, S., Yildiz, S., Rebello, G., Meldau, S., Pillay, K., Esterhuizen, A., Vorster, A., Benefeld, G., da Rocha, J., Beighton, P., Sellars, S. L., Thandrayen, K., Pettifor, J. M., Ramesar, R. S. &lt;strong&gt;Renal dysfunction, rod-cone dystrophy, and sensorineural hearing loss caused by a mutation in RRM2B.&lt;/strong&gt; Hum. Mutat. 41: 1871-1876, 2020.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/32827185/&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;32827185&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.24094&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="32827185">Roberts et al. (2020)</a> reported 6 patients from 5 unrelated Afrikaner families with rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction and mutation in the RRM2B gene, including 2 Afrikaner sisters (patients 30.3 and 30.4, family A) who were originally reported by <a href="#1" class="mim-tip-reference" title="Beighton, P., Bartmann, L., Bingham, G., Sellars, S. &lt;strong&gt;Rod-cone dystrophy, sensorineural deafness, and renal dysfunction: an autosomal recessive syndrome.&lt;/strong&gt; Am. J. Med. Genet. 47: 832-836, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8279480/&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;8279480&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.1320470607&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="8279480">Beighton et al. (1993)</a> as patients 1 and 2. Both sisters died from renal failure in early adulthood. Of the 4 new probands, one was an 18-year-old male patient (1506.1, family B) who was in renal failure, had cochlear implants for hearing impairment, and was blind due to tunnel vision and bilateral pigmented retinopathy. Patient 1510.2 (family C) was a 13-year-old girl who had cochlear implants for sensorineural hearing loss that was diagnosed at 3 years of age, and also had 'renal rickets' and rod-cone dystrophy. Patient 38.1 was reported to have hearing loss and rod-cone dystrophy from birth, with advanced visual impairment by age 10. Ocular examination at age 15 showed optic atrophy with waxy pallor of discs, depigmented maculae, and minimal bone spicule pigment clumping; cataracts had been removed. The patient also had skeletal fractures and Fanconi-type renal disease. Patient 229.1 had retinitis pigmentosa with onset before 4 years of age, renal infections beginning at 5 years of age, profound hearing loss with cochlear implants by age 17, and Fanconi-type renal disease. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=32827185+8279480" 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 RCDFRD in the families reported by <a href="#1" class="mim-tip-reference" title="Beighton, P., Bartmann, L., Bingham, G., Sellars, S. &lt;strong&gt;Rod-cone dystrophy, sensorineural deafness, and renal dysfunction: an autosomal recessive syndrome.&lt;/strong&gt; Am. J. Med. Genet. 47: 832-836, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8279480/&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;8279480&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.1320470607&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="8279480">Beighton et al. (1993)</a> was consistent with autosomal recessive inheritance. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8279480" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<a id="molecularGenetics" class="mim-anchor"></a>
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<strong>Molecular Genetics</strong>
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<p>In 2 deceased Afrikaner sisters (patients 30.3 and 30.4, family A) with rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction, who were originally reported by <a href="#1" class="mim-tip-reference" title="Beighton, P., Bartmann, L., Bingham, G., Sellars, S. &lt;strong&gt;Rod-cone dystrophy, sensorineural deafness, and renal dysfunction: an autosomal recessive syndrome.&lt;/strong&gt; Am. J. Med. Genet. 47: 832-836, 1993.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8279480/&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;8279480&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/ajmg.1320470607&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="8279480">Beighton et al. (1993)</a> as patients 1 and 2, <a href="#2" class="mim-tip-reference" title="Roberts, L., Julius, S., Dawlat, S., Yildiz, S., Rebello, G., Meldau, S., Pillay, K., Esterhuizen, A., Vorster, A., Benefeld, G., da Rocha, J., Beighton, P., Sellars, S. L., Thandrayen, K., Pettifor, J. M., Ramesar, R. S. &lt;strong&gt;Renal dysfunction, rod-cone dystrophy, and sensorineural hearing loss caused by a mutation in RRM2B.&lt;/strong&gt; Hum. Mutat. 41: 1871-1876, 2020.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/32827185/&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;32827185&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.24094&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="32827185">Roberts et al. (2020)</a> identified homozygosity for a missense mutation in the RRM2B gene (E262D; <a href="/entry/604712#0016">604712.0016</a>). Sanger sequencing demonstrated that their unaffected parents were heterozygous for the mutation, which was not found in 34 healthy Afrikaner controls or in public variant databases. Analysis of DNA samples from 2 more unrelated cases (patient 1506.1, family B, and patient 1510.2, family C) revealed homozygosity for the same E262D mutation in the RRM2B gene, with the expected segregation in both families. Sequencing the RRM2B gene in 46 patients with related phenotypes from the University of Cape Town inherited retinal disease repository identified homozygosity for the E262D variant in 2 additional unrelated probands (patients 38.1 and 229.1) with RCDFRD. Haplotype analysis suggested a probable founder effect in the Afrikaner population. Evaluation of a muscle biopsy from patient 1510.2 showed no evidence of mtDNA deletions or depletion, but microscopy was consistent with a mild mitochondrial abnormality. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=32827185+8279480" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<strong>REFERENCES</strong>
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<a id="1" class="mim-anchor"></a>
<a id="Beighton1993" class="mim-anchor"></a>
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Beighton, P., Bartmann, L., Bingham, G., Sellars, S.
<strong>Rod-cone dystrophy, sensorineural deafness, and renal dysfunction: an autosomal recessive syndrome.</strong>
Am. J. Med. Genet. 47: 832-836, 1993.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8279480/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8279480</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8279480" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/ajmg.1320470607" target="_blank">Full Text</a>]
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<a id="Roberts2020" class="mim-anchor"></a>
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Roberts, L., Julius, S., Dawlat, S., Yildiz, S., Rebello, G., Meldau, S., Pillay, K., Esterhuizen, A., Vorster, A., Benefeld, G., da Rocha, J., Beighton, P., Sellars, S. L., Thandrayen, K., Pettifor, J. M., Ramesar, R. S.
<strong>Renal dysfunction, rod-cone dystrophy, and sensorineural hearing loss caused by a mutation in RRM2B.</strong>
Hum. Mutat. 41: 1871-1876, 2020.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/32827185/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">32827185</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=32827185" 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/humu.24094" target="_blank">Full Text</a>]
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Contributors:
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Marla J. F. O'Neill - updated : 03/01/2022
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Creation Date:
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Victor A. McKusick : 11/9/1993
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<a href="#mimCollapseEditHistory" role="button" data-toggle="collapse"> Edit History: </a>
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alopez : 03/01/2022
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carol : 11/9/1993
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<strong>#</strong> 268315
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ROD-CONE DYSTROPHY, SENSORINEURAL DEAFNESS, AND FANCONI-TYPE RENAL DYSFUNCTION; RCDFRD
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<strong>Phenotype-Gene Relationships</strong>
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Location
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Phenotype
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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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8q22.3
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Rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction
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268315
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Autosomal recessive
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3
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RRM2B
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604712
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<strong>TEXT</strong>
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<p>A number sign (#) is used with this entry because of evidence that rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction (RCDFRD) is caused by homozygous mutation in the RRM2B gene (604712) on chromosome 8q22.</p><p>See also autosomal recessive mitochondrial DNA depletion syndrome (612075), autosomal dominant progressive external ophthalmoplegia (adPEO) with mitochondrial DNA (mtDNA) deletions-5 (PEOA5; 613077), both caused by mutations in the RRM2B gene.</p>
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<strong>Description</strong>
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<p>Rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction (RCDFRD) is characterized by onset of hearing impairment and reduced vision within the first 5 years of life. Renal dysfunction results in rickets-like skeletal changes, and death may occur in childhood or young adulthood due to renal failure (Beighton et al., 1993). </p>
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<strong>Clinical Features</strong>
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<p>During a large-scale survey of persons with Usher syndrome (retinitis pigmentosa and sensorineural deafness; see 276900), Beighton et al. (1993) identified 14 children in 9 Afrikaner families in South Africa with a combination of progressive rod-cone dystrophy, sensorineural deafness, and renal dysfunction of the Fanconi type leading to rickets-like skeletal changes and renal failure. Eight of the 11 children had died between the ages of 3 and 20 years; in most patients, the cause of death was reported to be renal failure. Onset of auditory and visual dysfunction was usually before age 5 and invariably before age 10 years. Retinitis pigmentosa or Usher syndrome had initially been diagnosed in every child, and cataracts had been documented as a complicating factor in 4 of the children. Renal dysfunction usually presented with albuminuria during the first 5 years, and the skeletal complications of 'renal rickets' were generally evident during the first decade. A stunted stature and malalignment of the weightbearing bones were the major skeletal manifestations. None of the parents were affected. Although minor changes were found in the eyes of the father of 2 affected sibs, none of the parents were known to be consanguineous. However, Beighton et al. (1993) noted that the Afrikaner population, which numbered more than 3 million at the time of the report, is derived from a comparatively small number of founders. </p><p>Roberts et al. (2020) reported 6 patients from 5 unrelated Afrikaner families with rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction and mutation in the RRM2B gene, including 2 Afrikaner sisters (patients 30.3 and 30.4, family A) who were originally reported by Beighton et al. (1993) as patients 1 and 2. Both sisters died from renal failure in early adulthood. Of the 4 new probands, one was an 18-year-old male patient (1506.1, family B) who was in renal failure, had cochlear implants for hearing impairment, and was blind due to tunnel vision and bilateral pigmented retinopathy. Patient 1510.2 (family C) was a 13-year-old girl who had cochlear implants for sensorineural hearing loss that was diagnosed at 3 years of age, and also had 'renal rickets' and rod-cone dystrophy. Patient 38.1 was reported to have hearing loss and rod-cone dystrophy from birth, with advanced visual impairment by age 10. Ocular examination at age 15 showed optic atrophy with waxy pallor of discs, depigmented maculae, and minimal bone spicule pigment clumping; cataracts had been removed. The patient also had skeletal fractures and Fanconi-type renal disease. Patient 229.1 had retinitis pigmentosa with onset before 4 years of age, renal infections beginning at 5 years of age, profound hearing loss with cochlear implants by age 17, and Fanconi-type renal disease. </p>
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<strong>Inheritance</strong>
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<span class="mim-text-font">
<p>The transmission pattern of RCDFRD in the families reported by Beighton et al. (1993) was consistent with autosomal recessive inheritance. </p>
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<strong>Molecular Genetics</strong>
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<p>In 2 deceased Afrikaner sisters (patients 30.3 and 30.4, family A) with rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction, who were originally reported by Beighton et al. (1993) as patients 1 and 2, Roberts et al. (2020) identified homozygosity for a missense mutation in the RRM2B gene (E262D; 604712.0016). Sanger sequencing demonstrated that their unaffected parents were heterozygous for the mutation, which was not found in 34 healthy Afrikaner controls or in public variant databases. Analysis of DNA samples from 2 more unrelated cases (patient 1506.1, family B, and patient 1510.2, family C) revealed homozygosity for the same E262D mutation in the RRM2B gene, with the expected segregation in both families. Sequencing the RRM2B gene in 46 patients with related phenotypes from the University of Cape Town inherited retinal disease repository identified homozygosity for the E262D variant in 2 additional unrelated probands (patients 38.1 and 229.1) with RCDFRD. Haplotype analysis suggested a probable founder effect in the Afrikaner population. Evaluation of a muscle biopsy from patient 1510.2 showed no evidence of mtDNA deletions or depletion, but microscopy was consistent with a mild mitochondrial abnormality. </p>
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<strong>REFERENCES</strong>
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Beighton, P., Bartmann, L., Bingham, G., Sellars, S.
<strong>Rod-cone dystrophy, sensorineural deafness, and renal dysfunction: an autosomal recessive syndrome.</strong>
Am. J. Med. Genet. 47: 832-836, 1993.
[PubMed: 8279480]
[Full Text: https://doi.org/10.1002/ajmg.1320470607]
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<p class="mim-text-font">
Roberts, L., Julius, S., Dawlat, S., Yildiz, S., Rebello, G., Meldau, S., Pillay, K., Esterhuizen, A., Vorster, A., Benefeld, G., da Rocha, J., Beighton, P., Sellars, S. L., Thandrayen, K., Pettifor, J. M., Ramesar, R. S.
<strong>Renal dysfunction, rod-cone dystrophy, and sensorineural hearing loss caused by a mutation in RRM2B.</strong>
Hum. Mutat. 41: 1871-1876, 2020.
[PubMed: 32827185]
[Full Text: https://doi.org/10.1002/humu.24094]
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