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- *607100 - NEPHROCYSTIN 1; NPHP1
- OMIM
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<span class="h4">*607100</span>
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<a href="#molecularGenetics">Molecular Genetics</a>
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<a href="#mimProteinLinksFold" id="mimProteinLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<span id="mimProteinLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9658;</span> Protein
</a>
</span>
</span>
</div>
<div id="mimProteinLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://hprd.org/summary?hprd_id=09524&isoform_id=09524_1&isoform_name=Isoform_1" class="mim-tip-hint" title="The Human Protein Reference Database; manually extracted and visually depicted information on human proteins." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HPRD', 'domain': 'hprd.org'})">HPRD</a></div>
<div><a href="https://www.proteinatlas.org/search/NPHP1" class="mim-tip-hint" title="The Human Protein Atlas contains information for a large majority of all human protein-coding genes regarding the expression and localization of the corresponding proteins based on both RNA and protein data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HumanProteinAtlas', 'domain': 'proteinatlas.org'})">Human Protein Atlas</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/protein/2460117,2570026,17367909,33096723,38566000,46397398,119571016,119571017,119571018,119571019,119571020,119571021,119571022,189491774,189491776,189491778,194386564,530369215,530369217,578804391,578804393,767918285,1743235156,1743235158,2462573741,2462573743,2462573745,2462573747,2462573749" class="mim-tip-hint" title="NCBI protein data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NCBI Protein', 'domain': 'ncbi.nlm.nih.gov'})">NCBI Protein</a></div>
<div><a href="https://www.uniprot.org/uniprotkb/O15259" class="mim-tip-hint" title="Comprehensive protein sequence and functional information, including supporting data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UniProt', 'domain': 'uniprot.org'})">UniProt</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimGeneInfo">
<span class="panel-title">
<span class="small">
<a href="#mimGeneInfoLinksFold" id="mimGeneInfoLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimGeneInfoLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Gene Info</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimGeneInfoLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="http://biogps.org/#goto=genereport&id=4867" class="mim-tip-hint" title="The Gene Portal Hub; customizable portal of gene and protein function information." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'BioGPS', 'domain': 'biogps.org'})">BioGPS</a></div>
<div><a href="https://www.ensembl.org/Homo_sapiens/Gene/Summary?db=core;g=ENSG00000144061;t=ENST00000445609" class="mim-tip-hint" title="Orthologs, paralogs, regulatory regions, and splice variants." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Ensembl', 'domain': 'ensembl.org'})">Ensembl</a></div>
<div><a href="https://www.genecards.org/cgi-bin/carddisp.pl?gene=NPHP1" class="mim-tip-hint" title="The Human Genome Compendium; web-based cards integrating automatically mined information on human genes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GeneCards', 'domain': 'genecards.org'})">GeneCards</a></div>
<div><a href="http://amigo.geneontology.org/amigo/search/annotation?q=NPHP1" class="mim-tip-hint" title="Terms, defined using controlled vocabulary, representing gene product properties (biologic process, cellular component, molecular function) across species." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GeneOntology', 'domain': 'amigo.geneontology.org'})">Gene Ontology</a></div>
<div><a href="https://www.genome.jp/dbget-bin/www_bget?hsa+4867" class="mim-tip-hint" title="Kyoto Encyclopedia of Genes and Genomes; diagrams of signaling pathways." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'KEGG', 'domain': 'genome.jp'})">KEGG</a></div>
<dd><a href="http://v1.marrvel.org/search/gene/NPHP1" class="mim-tip-hint" title="Model organism Aggregated Resources for Rare Variant ExpLoration." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MARRVEL', 'domain': 'marrvel.org'})">MARRVEL</a></dd>
<dd><a href="https://monarchinitiative.org/NCBIGene:4867" class="mim-tip-hint" title="Monarch Initiative." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Monarch', 'domain': 'monarchinitiative.org'})">Monarch</a></dd>
<div><a href="https://www.ncbi.nlm.nih.gov/gene/4867" class="mim-tip-hint" title="Gene-specific map, sequence, expression, structure, function, citation, and homology data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NCBI Gene', 'domain': 'ncbi.nlm.nih.gov'})">NCBI Gene</a></div>
<div><a href="https://genome.ucsc.edu/cgi-bin/hgGene?db=hg38&hgg_chrom=chr2&hgg_gene=ENST00000445609.7&hgg_start=110123348&hgg_end=110205013&hgg_type=knownGene" class="mim-tip-hint" title="UCSC Genome Bioinformatics; gene-specific structure and function information with links to other databases." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UCSC', 'domain': 'genome.ucsc.edu'})">UCSC</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimClinicalResources">
<span class="panel-title">
<span class="small">
<a href="#mimClinicalResourcesLinksFold" id="mimClinicalResourcesLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimClinicalResourcesLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Clinical Resources</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimClinicalResourcesLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel" aria-labelledby="clinicalResources">
<div class="panel-body small mim-panel-body">
<div><a href="https://search.clinicalgenome.org/kb/gene-dosage/HGNC:7905" class="mim-tip-hint" title="A ClinGen curated resource of genes and regions of the genome that are dosage sensitive and should be targeted on a cytogenomic array." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinGen Dosage', 'domain': 'dosage.clinicalgenome.org'})">ClinGen Dosage</a></div>
<div><a href="https://search.clinicalgenome.org/kb/genes/HGNC:7905" class="mim-tip-hint" title="A ClinGen curated resource of ratings for the strength of evidence supporting or refuting the clinical validity of the claim(s) that variation in a particular gene causes disease." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinGen Validity', 'domain': 'search.clinicalgenome.org'})">ClinGen Validity</a></div>
<div><a href="https://medlineplus.gov/genetics/gene/nphp1" class="mim-tip-hint" title="Consumer-friendly information about the effects of genetic variation on human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MedlinePlus Genetics', 'domain': 'medlineplus.gov'})">MedlinePlus Genetics</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/gtr/all/tests/?term=607100[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>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimVariation">
<span class="panel-title">
<span class="small">
<a href="#mimVariationLinksFold" id="mimVariationLinksToggle" class=" mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<span id="mimVariationLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9660;</span> Variation
</a>
</span>
</span>
</div>
<div id="mimVariationLinksFold" class="panel-collapse collapse in mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.ncbi.nlm.nih.gov/clinvar?term=607100[MIM]" class="mim-tip-hint" title="ClinVar aggregates information about sequence variation and its relationship to human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">ClinVar</a></div>
<div><a href="https://www.deciphergenomics.org/gene/NPHP1/overview/clinical-info" class="mim-tip-hint" title="DECIPHER" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'DECIPHER', 'domain': 'DECIPHER'})">DECIPHER</a></div>
<div><a href="https://gnomad.broadinstitute.org/gene/ENSG00000144061" class="mim-tip-hint" title="The Genome Aggregation Database (gnomAD), Broad Institute." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'gnomAD', 'domain': 'gnomad.broadinstitute.org'})">gnomAD</a></div>
<div><a href="https://www.ebi.ac.uk/gwas/search?query=NPHP1" class="mim-tip-hint" title="GWAS Catalog; NHGRI-EBI Catalog of published genome-wide association studies." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GWAS Catalog', 'domain': 'gwascatalog.org'})">GWAS Catalog&nbsp;</a></div>
<div><a href="https://www.gwascentral.org/search?q=NPHP1" class="mim-tip-hint" title="GWAS Central; summary level genotype-to-phenotype information from genetic association studies." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'GWAS Central', 'domain': 'gwascentral.org'})">GWAS Central&nbsp;</a></div>
<div><a href="http://www.hgmd.cf.ac.uk/ac/gene.php?gene=NPHP1" class="mim-tip-hint" title="Human Gene Mutation Database; published mutations causing or associated with human inherited disease; disease-associated/functional polymorphisms." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGMD', 'domain': 'hgmd.cf.ac.uk'})">HGMD</a></div>
<div><a href="https://evs.gs.washington.edu/EVS/PopStatsServlet?searchBy=Gene+Hugo&target=NPHP1&upstreamSize=0&downstreamSize=0&x=0&y=0" class="mim-tip-hint" title="National Heart, Lung, and Blood Institute Exome Variant Server." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NHLBI EVS', 'domain': 'evs.gs.washington.edu'})">NHLBI EVS</a></div>
<div><a href="https://www.pharmgkb.org/gene/PA31706" class="mim-tip-hint" title="Pharmacogenomics Knowledge Base; curated and annotated information regarding the effects of human genetic variations on drug response." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PharmGKB', 'domain': 'pharmgkb.org'})">PharmGKB</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimAnimalModels">
<span class="panel-title">
<span class="small">
<a href="#mimAnimalModelsLinksFold" id="mimAnimalModelsLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimAnimalModelsLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Animal Models</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimAnimalModelsLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.alliancegenome.org/gene/HGNC:7905" class="mim-tip-hint" title="Search Across Species; explore model organism and human comparative genomics." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Alliance Genome', 'domain': 'alliancegenome.org'})">Alliance Genome</a></div>
<div><a href="https://www.mousephenotype.org/data/genes/MGI:1858233" class="mim-tip-hint" title="International Mouse Phenotyping Consortium." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'IMPC', 'domain': 'knockoutmouse.org'})">IMPC</a></div>
<div><a href="http://v1.marrvel.org/search/gene/NPHP1#HomologGenesPanel" class="mim-tip-hint" title="Model organism Aggregated Resources for Rare Variant ExpLoration." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MARRVEL', 'domain': 'marrvel.org'})">MARRVEL</a></div>
<div><a href="http://www.informatics.jax.org/marker/MGI:1858233" class="mim-tip-hint" title="Mouse Genome Informatics; international database resource for the laboratory mouse, including integrated genetic, genomic, and biological data." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MGI Mouse Gene', 'domain': 'informatics.jax.org'})">MGI Mouse Gene</a></div>
<div><a href="https://www.mmrrc.org/catalog/StrainCatalogSearchForm.php?search_query=" class="mim-tip-hint" title="Mutant Mouse Resource & Research Centers." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'MMRRC', 'domain': 'mmrrc.org'})">MMRRC</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/gene/4867/ortholog/" class="mim-tip-hint" title="Orthologous genes at NCBI." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NCBI Orthologs', 'domain': 'ncbi.nlm.nih.gov'})">NCBI Orthologs</a></div>
<div><a href="https://www.orthodb.org/?ncbi=4867" class="mim-tip-hint" title="Hierarchical catalogue of orthologs." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'OrthoDB', 'domain': 'orthodb.org'})">OrthoDB</a></div>
<div><a href="https://wormbase.org/db/gene/gene?name=WBGene00010898;class=Gene" 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'{'name': 'Wormbase Gene', 'domain': 'wormbase.org'})">Wormbase Gene</a></div>
<div><a href="https://zfin.org/ZDB-GENE-060929-1234" class="mim-tip-hint" title="The Zebrafish Model Organism Database." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ZFin', 'domain': 'zfin.org'})">ZFin</a></div>
</div>
</div>
</div>
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimCellularPathways">
<span class="panel-title">
<span class="small">
<a href="#mimCellularPathwaysLinksFold" id="mimCellularPathwaysLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<div style="display: table-row">
<div id="mimCellularPathwaysLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5; display: table-cell;">&#9658;</div>
&nbsp;
<div style="display: table-cell;">Cellular Pathways</div>
</div>
</a>
</span>
</span>
</div>
<div id="mimCellularPathwaysLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://reactome.org/content/query?q=NPHP1&species=Homo+sapiens&types=Reaction&types=Pathway&cluster=true" class="definition" title="Protein-specific information in the context of relevant cellular pathways." target="_blank" onclick="gtag('event', 'mim_outbound', {{'name': 'Reactome', 'domain': 'reactome.org'}})">Reactome</a></div>
</div>
</div>
</div>
</div>
</div>
</div>
<span>
<span class="mim-tip-bottom" qtip_title="<strong>Looking for this gene or this phenotype in other resources?</strong>" qtip_text="Select a related resource from the dropdown menu and click for a targeted link to information directly relevant.">
&nbsp;
</span>
</span>
</div>
<div class="col-lg-8 col-lg-pull-2 col-md-8 col-md-pull-2 col-sm-8 col-sm-pull-2 col-xs-12">
<div>
<a id="title" class="mim-anchor"></a>
<div>
<a id="number" class="mim-anchor"></a>
<div class="text-right">
<a href="#" class="mim-tip-icd" qtip_title="<strong>ICD+</strong>" qtip_text="
<strong>SNOMEDCT:</strong> 204958008, 444830001<br />
">ICD+</a>
</div>
<div>
<span class="h3">
<span class="mim-font mim-tip-hint" title="Gene description">
<span class="text-danger"><strong>*</strong></span>
607100
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
NEPHROCYSTIN 1; NPHP1
</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">
NPH1
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<a id="approvedGeneSymbols" class="mim-anchor"></a>
<p>
<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: <a href="https://www.genenames.org/tools/search/#!/genes?query=NPHP1" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">NPHP1</a></em></strong>
</span>
</p>
</div>
<div>
<a id="cytogeneticLocation" class="mim-anchor"></a>
<p>
<span class="mim-text-font">
<strong>
<em>
Cytogenetic location: <a href="/geneMap/2/555?start=-3&limit=10&highlight=555">2q13</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chr2:110123348-110205013&dgv=pack&knownGene=pack&omimGene=pack" class="mim-tip-hint" title="UCSC Genome Browser; reference sequences and working draft assemblies for a large collection of genomes." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'UCSC Genome Browser', 'domain': 'genome.ucsc.edu'})">2:110,123,348-110,205,013</a> </span>
</em>
</strong>
<a href="https://www.ncbi.nlm.nih.gov/" target="_blank" class="small"> (from NCBI) </a>
</span>
</p>
</div>
<div>
<br />
</div>
<div>
<a id="geneMap" class="mim-anchor"></a>
<div style="margin-bottom: 10px;">
<span class="h4 mim-font">
<strong>Gene-Phenotype Relationships</strong>
</span>
</div>
<div>
<table class="table table-bordered table-condensed table-hover small mim-table-padding">
<thead>
<tr class="active">
<th>
Location
</th>
<th>
Phenotype
<span class="hidden-sm hidden-xs pull-right">
<a href="/clinicalSynopsis/table?mimNumber=609583,256100,266900" class="label label-warning" onclick="gtag('event', 'mim_link', {'source': 'Entry', 'destination': 'clinicalSynopsisTable'})">
View Clinical Synopses
</a>
</span>
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="3">
<span class="mim-font">
<a href="/geneMap/2/555?start=-3&limit=10&highlight=555">
2q13
</a>
</span>
</td>
<td>
<span class="mim-font">
Joubert syndrome 4
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/609583"> 609583 </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>
</tr>
<tr>
<td>
<span class="mim-font">
Nephronophthisis 1, juvenile
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/256100"> 256100 </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>
</tr>
<tr>
<td>
<span class="mim-font">
Senior-Loken syndrome-1
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/266900"> 266900 </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>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<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/607100" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/607100" 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>
<div>
<br />
</div>
<div>
<a id="text" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<span class="mim-tip-floating" qtip_title="<strong>Looking For More References?</strong>" qtip_text="Click the 'reference plus' icon &lt;span class='glyphicon glyphicon-plus-sign'&gt;&lt;/span&gt at the end of each OMIM text paragraph to see more references related to the content of the preceding paragraph.">
<strong>TEXT</strong>
</span>
</span>
</h4>
<div>
<a id="cloning" class="mim-anchor"></a>
<h4 href="#mimCloningFold" id="mimCloningToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimCloningToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Cloning and Expression</strong>
</span>
</h4>
</div>
<div id="mimCloningFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p>The presence of large homozygous deletions of approximately 250 kb (<a href="#0005">607100.0005</a>) in the 2q13 region in most patients with juvenile nephronophthisis (NPHP1; <a href="/entry/256100">256100</a>) allowed <a href="#14" class="mim-tip-reference" title="Saunier, S., Calado, J., Heilig, R., Silbermann, F., Benessy, F., Morin, G., Konrad, M., Broyer, M., Gubler, M.-C., Weissenbach, J., Antignac, C. &lt;strong&gt;A novel gene that encodes a protein with a putative src homology 3 domain is a candidate gene for familial juvenile nephronophthisis.&lt;/strong&gt; Hum. Molec. Genet. 6: 2317-2323, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9361039/&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;9361039&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/6.13.2317&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="9361039">Saunier et al. (1997)</a> to define a minimal deletion interval for the NPH1 gene. They established a BAC contig covering this interval. A combination of large-scale genomic sequencing, cDNA selection, and computer-aided analysis led to the characterization of 2 transcriptional units. One encoded the already known BENE protein (<a href="/entry/602022">602022</a>), and the other encoded a novel protein of at least 732 amino acids containing a putative src homology-3 (SH3) domain. The latter was shown to be the NPHP1 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9361039" 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>Following up on the observation that 65 to 75% of NPH1 patients exhibit large homozygous deletions in the 2q13 region, <a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al. (1997)</a> identified 2 genes, called NPHP1 and MALL (for MAL-like; <a href="/entry/602022">602022</a>) by them. (The MAL gene (<a href="/entry/188860">188860</a>) encodes the T-lymphocyte maturation-associated protein.) <a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al. (1997)</a> determined that the 4.5-kb NPHP1 transcript encodes a protein with an SH3 domain that is highly conserved throughout evolution. They found that the NPHP1 gene extends over most of the common deletion interval. The 11-kb interval between the 3-prime end of NPHP1 and an inverted repeat containing the distal deletion breakpoint was found to contain the first exon of the MALL gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9326933" 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="geneStructure" class="mim-anchor"></a>
<h4 href="#mimGeneStructureFold" id="mimGeneStructureToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Gene Structure</strong>
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<p><a href="#14" class="mim-tip-reference" title="Saunier, S., Calado, J., Heilig, R., Silbermann, F., Benessy, F., Morin, G., Konrad, M., Broyer, M., Gubler, M.-C., Weissenbach, J., Antignac, C. &lt;strong&gt;A novel gene that encodes a protein with a putative src homology 3 domain is a candidate gene for familial juvenile nephronophthisis.&lt;/strong&gt; Hum. Molec. Genet. 6: 2317-2323, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9361039/&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;9361039&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/6.13.2317&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="9361039">Saunier et al. (1997)</a> determined that the NPHP1 gene, which they identified as a novel gene in the nephronophthisis-1 interval on 2q13, contains at least 20 exons spanning more than 80 kb and is entirely located in the nonduplicated region common to all the NPHP1 deletions. <a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al. (1997)</a> likewise detected at least 20 exons, 18 of which have a median size of 95 basepairs. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=9326933+9361039" 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>
<h4 href="#mimMappingFold" id="mimMappingToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
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<strong>Mapping</strong>
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<p>The NPHP1 gene was identified in the minimal deletion interval on chromosome 2q13 for nephronophthisis-1 (<a href="#14" class="mim-tip-reference" title="Saunier, S., Calado, J., Heilig, R., Silbermann, F., Benessy, F., Morin, G., Konrad, M., Broyer, M., Gubler, M.-C., Weissenbach, J., Antignac, C. &lt;strong&gt;A novel gene that encodes a protein with a putative src homology 3 domain is a candidate gene for familial juvenile nephronophthisis.&lt;/strong&gt; Hum. Molec. Genet. 6: 2317-2323, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9361039/&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;9361039&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/6.13.2317&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="9361039">Saunier et al., 1997</a>; <a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al., 1997</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=9326933+9361039" 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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<div>
<a id="geneFunction" class="mim-anchor"></a>
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<strong>Gene Function</strong>
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<p>Using a yeast 2-hybrid screen of an embryonic mouse cDNA library with the C-terminal region of BCAR1 (<a href="/entry/602941">602941</a>) as bait, <a href="#6" class="mim-tip-reference" title="Donaldson, J. C., Dempsey, P. J., Reddy, S., Bouton, A. H., Coffey, R. J., Hanks, S. K. &lt;strong&gt;Crk-associated substrate p130(Cas) interacts with nephrocystin and both proteins localize to cell-cell contacts of polarized epithelial cells.&lt;/strong&gt; Exp. Cell Res. 256: 168-175, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10739664/&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;10739664&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1006/excr.2000.4822&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="10739664">Donaldson et al. (2000)</a> detected interaction with the SH3 domain of mouse nephrocystin, which is 83% identical to human nephrocystin. By immunoprecipitation and Western blot analyses, <a href="#2" class="mim-tip-reference" title="Benzing, T., Gerke, P., Hopker, K., Hildebrandt, F., Kim, E., Walz, G. &lt;strong&gt;Nephrocystin interacts with Pyk2, p130(Cas), and tensin and triggers phosphorylation of Pyk2.&lt;/strong&gt; Proc. Nat. Acad. Sci. 98: 9784-9789, 2001.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11493697/&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;11493697&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=11493697[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1073/pnas.171269898&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="11493697">Benzing et al. (2001)</a> showed that nephrocystin interacts with p130Cas (BCAR1), proline-rich tyrosine kinase-2 (PTK2B; <a href="/entry/601212">601212</a>), and tensin (TNS; <a href="/entry/600076">600076</a>) in embryonic kidney and testis, indicating that these proteins participate in a common signaling pathway. Immunoblot analysis established that expression of nephrocystin induces phosphorylation of PTK2B on tyr402. <a href="https://pubmed.ncbi.nlm.nih.gov/?term=11493697+10739664" 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="#10" class="mim-tip-reference" title="Mollet, G., Silbermann, F., Delous, M., Salomon, R., Antignac, C., Saunier, S. &lt;strong&gt;Characterization of the nephrocystin/nephrocystin-4 complex and subcellular localization of nephrocystin-4 to primary cilia and centrosomes.&lt;/strong&gt; Hum. Molec. Genet. 14: 645-656, 2005.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15661758/&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;15661758&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/ddi061&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="15661758">Mollet et al. (2005)</a> showed that NPHP1 interacted with nephrocystin-4 (NPHP4; <a href="/entry/607215">607215</a>) and that the last 79 residues of NPHP1 were required for NPHP4 interaction. NPHP4 interacted with BCAR1 and PTK2B similar to NPHP1, and both NPHP1 and NPHP4 localized with alpha-tubulin (see <a href="/entry/602529">602529</a>) especially to the primary cilia and microtubule organizing center in MDCK cells. <a href="#10" class="mim-tip-reference" title="Mollet, G., Silbermann, F., Delous, M., Salomon, R., Antignac, C., Saunier, S. &lt;strong&gt;Characterization of the nephrocystin/nephrocystin-4 complex and subcellular localization of nephrocystin-4 to primary cilia and centrosomes.&lt;/strong&gt; Hum. Molec. Genet. 14: 645-656, 2005.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15661758/&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;15661758&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/ddi061&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="15661758">Mollet et al. (2005)</a> suggested that NPHP1 and NPHP4 belong to a multifunctional complex localized in actin- and microtubule-based structures involved in cell-cell and cell-matrix adhesion signaling, as well as in cell division. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15661758" 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="Delous, M., Hellman, N. E., Gaude, H.-M., Silbermann, F., Le Bivic, A., Salomon, R., Antignac, C., Saunier, S. &lt;strong&gt;Nephrocystin-1 and nephrocystin-4 are required for epithelial morphogenesis and associate with PALS1/PATJ and Par6.&lt;/strong&gt; Hum. Molec. Genet. 18: 4711-4723, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19755384/&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;19755384&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=19755384[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/ddp434&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="19755384">Delous et al. (2009)</a> showed that nephrocystin mRNA expression was dramatically increased during cell polarization, and shRNA-mediated knockdown of either NPHP1 or NPHP4 in MDCK cells resulted in delayed tight junction (TJ) formation, abnormal cilia formation, and disorganized multilumen structures when grown in a 3-dimensional collagen matrix. Some of these phenotypes were similar to those reported for cells depleted of the TJ proteins PALS1 (MPP5; <a href="/entry/606958">606958</a>) or PAR3 (PARD3; <a href="/entry/606745">606745</a>). A physical interaction between these nephrocystins and PALS1 as well as their partners PATJ (INADL; <a href="/entry/603199">603199</a>) and PAR6 (PARD6A; <a href="/entry/607484">607484</a>) was demonstrated, and the proteins partially colocalized in human renal tubules. The authors concluded that the nephrocystins play an essential role in epithelial cell organization, suggesting a mechanism by which the histopathologic features of nephronophthisis might develop. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19755384" 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="Williams, C. L., Li, C., Kida, K., Inglis, P. N., Mohan, S., Semenec, L., Bialas, N. J., Stupay, R. M., Chen, N., Blacque, O. E., Yoder, B. K., Leroux, M. R. &lt;strong&gt;MKS and NPHP modules cooperate to establish basal body/transition zone membrane associations and ciliary gate function during ciliogenesis.&lt;/strong&gt; J. Cell. Biol. 192: 1023-1041, 2011.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/21422230/&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;21422230&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=21422230[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1083/jcb.201012116&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="21422230">Williams et al. (2011)</a> showed that the conserved proteins Mks1 (<a href="/entry/609883">609883</a>), Mksr1 (B9D1), Mksr2 (B9D2; <a href="/entry/611951">611951</a>), Tmem67 (<a href="/entry/609884">609884</a>), Rpgrip1l (<a href="/entry/610937">610937</a>), Cc2d2a (<a href="/entry/612013">612013</a>), Nphp1, and Nphp4 functioned at an early stage of ciliogenesis in C. elegans. These 8 proteins localized to the ciliary transition zone and established attachments between the basal body and transition zone membrane. They also provided a docking site that restricted vesicle fusion to vesicles containing ciliary proteins. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21422230" 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><strong><em>Deletion at the NPHP1 Locus</em></strong></p><p>
<a href="#9" class="mim-tip-reference" title="Konrad, M., Saunier, S., Heidet, L., Silbermann, F., Benessy, F., Calado, J., Le Paslier, D., Broyer, M., Gubler, M.-C., Antignac, C. &lt;strong&gt;Large homozygous deletions of the 2q13 region are a major cause of juvenile nephronophthisis.&lt;/strong&gt; Hum. Molec. Genet. 5: 367-371, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8852662/&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;8852662&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/5.3.367&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="8852662">Konrad et al. (1996)</a> observed that mutation in the NPH1 gene appears to be responsible for the vast majority (approximately 85%) of the purely renal forms of juvenile nephronophthisis, that is, cases without extrarenal features such as ocular lesions. By haplotype analysis, <a href="#9" class="mim-tip-reference" title="Konrad, M., Saunier, S., Heidet, L., Silbermann, F., Benessy, F., Calado, J., Le Paslier, D., Broyer, M., Gubler, M.-C., Antignac, C. &lt;strong&gt;Large homozygous deletions of the 2q13 region are a major cause of juvenile nephronophthisis.&lt;/strong&gt; Hum. Molec. Genet. 5: 367-371, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8852662/&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;8852662&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/5.3.367&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="8852662">Konrad et al. (1996)</a> identified 2 DNA markers flanking the NPH1 gene at loci D2S1890 and D2S1888. This interval of approximately 2 cM and the surrounding region was cloned in a YAC contig. The region turned out to be partially duplicated on 2p12. Further, several markers mapped to more than 1 locus within the NPH1 region on 2q13, suggesting to them the presence of low copy repeats. As low copy repeats predispose to large-scale chromosomal rearrangements, <a href="#9" class="mim-tip-reference" title="Konrad, M., Saunier, S., Heidet, L., Silbermann, F., Benessy, F., Calado, J., Le Paslier, D., Broyer, M., Gubler, M.-C., Antignac, C. &lt;strong&gt;Large homozygous deletions of the 2q13 region are a major cause of juvenile nephronophthisis.&lt;/strong&gt; Hum. Molec. Genet. 5: 367-371, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8852662/&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;8852662&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/5.3.367&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="8852662">Konrad et al. (1996)</a> performed PCR analysis of sequence tagged sites (STSs) mapping to the region. By this approach, they detected large-scale rearrangements in 80% of the patients belonging to inbred or multiplex NPH1 families and in 65% of the sporadic cases. In most cases these rearrangements appeared to be large homozygous deletions of approximately 250 kb involving a 100-kb inverted duplication (<a href="#0005">607100.0005</a>). This suggested a common genetic disease-causing mechanism that could be responsible for the highest frequency of large rearrangements reported in an autosomal recessive disorder. The authors stated that their findings were of major clinical interest because they permitted the diagnosis of the disorder in most sporadic cases, thus avoiding the need for kidney biopsy. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8852662" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al. (1997)</a> found that both the MALL and NPHP1 genes were homozygously deleted in patients from 16 of 22 families with nephronophthisis showing linkage to the 2q13 region. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9326933" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#1" class="mim-tip-reference" title="Ala-Mello, S., Sankila, E.-M., Koskimies, O., de la Chapelle, A., Kaariainen, H. &lt;strong&gt;Molecular studies in Finnish patients with familial juvenile nephronophthisis exclude a founder effect and support a common mutation causing mechanism.&lt;/strong&gt; J. Med. Genet. 35: 279-283, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9598719/&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;9598719&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.35.4.279&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="9598719">Ala-Mello et al. (1998)</a> studied 14 Finnish families with NPHP1. Deletions of the NPH1 locus were found in 12 patients from 9 families. Haplotype analysis using markers D2S340, D2S1889, and D2S1893 showed no evidence of a founder effect. Linkage analysis showed a lod score of 1.39 to 3.89 at theta = 0.0 in those families with a deletion with markers D2S176, D2S293, and D2S340. Linkage to 2q13 was excluded in those families with no deletion by combined lod score values between -4.7 and -1.69 at theta = 0.01. End-stage renal disease occurred at a more advanced age in patients without deletions. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9598719" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><a href="#3" class="mim-tip-reference" title="Betz, R., Rensing, C., Otto, E., Mincheva, A., Zehnder, D., Lichter, P., Hildebrandt, F. &lt;strong&gt;Children with ocular motor apraxia type Cogan carry deletions in the gene (NPHP1) for juvenile nephronophthisis.&lt;/strong&gt; J. Pediat. 136: 828-831, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10839884/&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;10839884&lt;/a&gt;]" pmid="10839884">Betz et al. (2000)</a> reported 2 patients with nephronophthisis-1 associated with Cogan-type congenital ocular motor apraxia (COMA; <a href="/entry/257550">257550</a>). One patient had large deletions on each chromosome 2q13, while the other had a deletion encompassing the NPHP1 gene on one chromosome 2q13 and a point mutation of the NPHP1 gene (<a href="#0004">607100.0004</a>) in the other chromosome 2q13. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10839884" 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="Caridi, G., Murer, L., Bellantuono, R., Sorino, P., Caringella, D. A., Gusmano, R., Ghiggeri, G. M. &lt;strong&gt;Renal-retinal syndromes: association of retinal anomalies and recessive nephronophthisis in patients with homozygous deletion of the NPH1 locus.&lt;/strong&gt; Am. J. Kidney Dis. 32: 1059-1062, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9856524/&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;9856524&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0272-6386(98)70083-6&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="9856524">Caridi et al. (1998)</a> demonstrated the association of nephronophthisis with retinitis pigmentosa (Senior-Loken syndrome; <a href="/entry/266900">266900</a>) in patients with homozygous deletion in the NPHP1 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9856524" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>By large-scale genomic sequencing and pulsed field gel electrophoresis analysis, <a href="#13" class="mim-tip-reference" title="Saunier, S., Calado, J., Benessy, F., Silbermann, F., Heilig, R., Weissenbach, J., Antignac, C. &lt;strong&gt;Characterization of the NPHP1 locus: mutational mechanism involved in deletions in familial juvenile nephronophthisis.&lt;/strong&gt; Am. J. Hum. Genet. 66: 778-789, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10712196/&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;10712196&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=10712196[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/302819&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="10712196">Saunier et al. (2000)</a> characterized the complex organization of the NPHP1 locus and determined the mutational mechanism that results in the large deletion that is found in approximately 80% of patients. They showed that the deletion is 290 kb long and that NPHP1 is flanked by 2 large inverted repeats of approximately 330 kb. In addition, a second sequence of 45 kb located adjacent to the proximal 330-kb repeat was shown to be directly repeated 250 kb away within the distal 330-kb repeat deleting a sequence tag site present in the proximal copy. The patients' deletion breakpoints appeared to be located within the 45-kb repeat, suggesting an unequal recombination between the 2 homologous copies of this smaller repeat. Moreover, in 11 patients, they demonstrated a nonpathologic rearrangement involving the two 330-kb inverted repeats, and the same rearrangement was found in homozygous state in 2 (1.3%) control individuals. This could be explained by interchromosomal mispairing of the 330-kb inverted repeat, followed by double recombination or by a prior intrachromosomal mispairing of these repeats, leading to an inversion of the NPHP1 region, followed by an interchromosomal unequal crossover event. This complex rearrangement, as well as the common deletion found in most patients, illustrates the high level of rearrangements occurring in the centromeric region of chromosome 2. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10712196" 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>Joubert syndrome (JS; <a href="/entry/213300">213300</a>) is an autosomal recessive multisystem disease characterized by cerebellar vermis hypoplasia with prominent superior cerebellar peduncles (resulting in the 'molar tooth sign,' or MTS, on axial MRI), mental retardation, hypotonia, irregular breathing pattern, and eye movement abnormalities. Some individuals with JS have retinal dystrophy and/or progressive renal failure characterized as nephronophthisis. The disorder in such patients is referred to as cerebellooculorenal syndrome, or CORS. <a href="#11" class="mim-tip-reference" title="Parisi, M. A., Bennett, C. L., Eckert, M. L., Dobyns, W. B., Gleeson, J. G., Shaw, D. W. W., McDonald, R., Eddy, A., Chance, P. F., Glass, I. A. &lt;strong&gt;The NPHP1 gene deletion associated with juvenile nephronophthisis is present in a subset of individuals with Joubert syndrome.&lt;/strong&gt; Am. J. Hum. Genet. 75: 82-91, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15138899/&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;15138899&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=15138899[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/421846&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="15138899">Parisi et al. (2004)</a> screened for mutations in the NPHP1 gene by standard methods in a cohort of 25 subjects with JS and renal and/or retinal complications and in 2 subjects with juvenile nephronophthisis only. Two sibs with a mild form of JS had a homozygous deletion of the NPHP1 gene identical, by mapping, to that in subjects with nephronophthisis alone. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15138899" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><strong><em>Mutation of the NPHP1 gene</em></strong></p><p>
In 2 patients carrying the large deletion of the NPH1 region on only 1 allele, <a href="#14" class="mim-tip-reference" title="Saunier, S., Calado, J., Heilig, R., Silbermann, F., Benessy, F., Morin, G., Konrad, M., Broyer, M., Gubler, M.-C., Weissenbach, J., Antignac, C. &lt;strong&gt;A novel gene that encodes a protein with a putative src homology 3 domain is a candidate gene for familial juvenile nephronophthisis.&lt;/strong&gt; Hum. Molec. Genet. 6: 2317-2323, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9361039/&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;9361039&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/6.13.2317&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="9361039">Saunier et al. (1997)</a> detected 2 mutations in 2 independent exons of the NPHP1 gene. One consisted of a single base deletion, causing a frameshift, and the other was a G-to-A substitution in the consensus 5-prime splice donor site. Both mutations potentially generated null mutants. One of these mutations was found to segregate with the disease in the family, and the second appeared to be a de novo mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9361039" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In NPH1 patients who carried a hemizygous deletion at the NPHP1 region, <a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al. (1997)</a> detected additional point mutations in NPHP1 but not in the adjacent gene MALL. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9326933" 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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<span class="mim-font">
<strong>Animal Model</strong>
</span>
</h4>
</div>
<div id="mimAnimalModelFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p><a href="#8" class="mim-tip-reference" title="Jiang, S.-T., Chiou, Y.-Y., Wang, E., Chien, Y.-L., Ho, H.-H., Tsai, F.-J., Lin, C.-Y., Tsai, S.-P., Li, H. &lt;strong&gt;Essential role of nephrocystin in photoreceptor intraflagellar transport in mouse.&lt;/strong&gt; Hum. Molec. Genet. 18: 1566-1577, 2009.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/19208653/&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;19208653&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/ddp068&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="19208653">Jiang et al. (2009)</a> used Nphp1-mutant mice carrying an exon 20 deletion and transgenic mice expressing EmGFP-tagged nephrocystin to demonstrate that nephrocystin was localized to the connecting cilium axoneme, where it affected the sorting mechanism and transportation efficiency of the intraflagellar transport between inner and outer segments of photoreceptors. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19208653" 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>
</span>
<div>
<br />
</div>
</div>
</div>
<div>
<a id="allelicVariants" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<span href="#mimAllelicVariantsFold" id="mimAllelicVariantsToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimAllelicVariantsToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>ALLELIC VARIANTS (<a href="/help/faq#1_4"></strong>
</span>
<strong>5 Selected Examples</a>):</strong>
</span>
</h4>
<div>
<p />
</div>
<div id="mimAllelicVariantsFold" class="collapse in mimTextToggleFold">
<div>
<a href="/allelicVariants/607100" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=607100[MIM]" class="btn btn-default mim-tip-hint" role="button" title="ClinVar aggregates information about sequence variation and its relationship to human health." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">ClinVar</a>
</div>
<div>
<p />
</div>
<div>
<div>
<a id="0001" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0001&nbsp;NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
NPHP1, IVS18, G-T, +1
</div>
</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs1233478832 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1233478832;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://gnomad.broadinstitute.org/variant/rs1233478832?dataset=gnomad_r2_1" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'gnomad.broadinstitute.org'})" style="padding-left: 8px;"><span class="text-primary">&#x25cf;</span> gnomAD</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs1233478832" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'www.ncbi.nlm.nih.gov'})">NCBI</a></li> <li><a href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Human&db=hg38&clinvar=pack&omimAvSnp=pack&position=rs1233478832" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
<span class="mim-text-font">
<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000003682 OR RCV001851623 OR RCV003466796 OR RCV005016232" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000003682, RCV001851623, RCV003466796, RCV005016232" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000003682...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p><a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al. (1997)</a> performed SSCP for 18 of the 20 exons of the NPH1 gene in 6 multiplex and 6 simplex nephronophthisis-1 (NPHP1; <a href="/entry/256100">256100</a>) families in which PCR was negative for a homozygous deletion in the 2q13 region. In 3 NPH1 families, hemizygous mutations were found, in which a heterozygous paternal deletion was combined with a heterozygous maternal point mutation. In 1 family the mother was heterozygous for a G-to-T transversion at position 1 of the splice donor consensus of exon 18 in the NPHP1 gene. The affected child was hemizygous for the transversion. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9326933" 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>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<a id="0002" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0002&nbsp;NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
NPHP1, IVS14, 1-BP DEL, G, +1
</div>
</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs747861275 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs747861275;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://gnomad.broadinstitute.org/variant/rs747861275?dataset=gnomad_r2_1" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'gnomad.broadinstitute.org'})" style="padding-left: 8px;"><span class="text-primary">&#x25cf;</span> gnomAD</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs747861275" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'www.ncbi.nlm.nih.gov'})">NCBI</a></li> <li><a href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Human&db=hg38&clinvar=pack&omimAvSnp=pack&position=rs747861275" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
<span class="mim-text-font">
<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000003683 OR RCV000550431" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000003683, RCV000550431" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000003683...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>In the family of a child with nephronophthisis (NPHP1; <a href="/entry/256100">256100</a>), <a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al. (1997)</a> found that the father was hemizygous for the wildtype sequence (carrying the deletion on the other chromosome), whereas the mother was heterozygous for deletion of G at position +1 of the canonical splice donor consensus sequence of exon 14 in the NPHP1 gene; the affected child was hemizygous for the single nucleotide deletion. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9326933" 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>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<a id="0003" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0003&nbsp;NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
NPHP1, LEU27TER
</div>
</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs121907898 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs121907898;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://gnomad.broadinstitute.org/variant/rs121907898?dataset=gnomad_r2_1" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'gnomad.broadinstitute.org'})" style="padding-left: 8px;"><span class="text-primary">&#x25cf;</span> gnomAD</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs121907898" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'www.ncbi.nlm.nih.gov'})">NCBI</a></li> <li><a href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Human&db=hg38&clinvar=pack&omimAvSnp=pack&position=rs121907898" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
<span class="mim-text-font">
<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000003684 OR RCV000234828" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000003684, RCV000234828" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000003684...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a child with nephronophthisis (NPHP1; <a href="/entry/256100">256100</a>), <a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al. (1997)</a> found hemizygosity for a nonsense mutation in the NPHP1 gene; a T-to-A transversion in exon 2 converted codon TTG (leu) to TAG (stop). The mother was heterozygous for this mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9326933" 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>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<a id="0004" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0004&nbsp;NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
NPHP1, GLY343ARG
</div>
</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown"><span class="text-primary">&#x25cf;</span> rs121907899 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs121907899;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://gnomad.broadinstitute.org/variant/rs121907899?dataset=gnomad_r2_1" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'gnomad.broadinstitute.org'})" style="padding-left: 8px;"><span class="text-primary">&#x25cf;</span> gnomAD</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs121907899" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'www.ncbi.nlm.nih.gov'})">NCBI</a></li> <li><a href="https://genome.ucsc.edu/cgi-bin/hgTracks?org=Human&db=hg38&clinvar=pack&omimAvSnp=pack&position=rs121907899" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'genome.ucsc.edu'})">UCSC</a></li> </ul> </div>
<span class="mim-text-font">
<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000003685 OR RCV000520742 OR RCV000537800 OR RCV000778560 OR RCV003466797 OR RCV004018547 OR RCV004814818 OR RCV005025001" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000003685, RCV000520742, RCV000537800, RCV000778560, RCV003466797, RCV004018547, RCV004814818, RCV005025001" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000003685...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a child with nephronophthisis (NPHP1; <a href="/entry/256100">256100</a>) associated with Cogan-type congenital ocular motor apraxia (COMA; <a href="/entry/257550">257550</a>), <a href="#3" class="mim-tip-reference" title="Betz, R., Rensing, C., Otto, E., Mincheva, A., Zehnder, D., Lichter, P., Hildebrandt, F. &lt;strong&gt;Children with ocular motor apraxia type Cogan carry deletions in the gene (NPHP1) for juvenile nephronophthisis.&lt;/strong&gt; J. Pediat. 136: 828-831, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10839884/&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;10839884&lt;/a&gt;]" pmid="10839884">Betz et al. (2000)</a> identified hemizygosity for a G-to-A transition at nucleotide 1027 of the NPHP1 gene, leading to a gly343-to-arg substitution and an alteration of an 80% conserved splice donor consensus. The NPHP1 gene was deleted on the other allele. The mother and a healthy child were heterozygous for this point mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10839884" 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>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<a id="0005" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0005&nbsp;NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SENIOR-LOKEN SYNDROME 1, INCLUDED<br />
JOUBERT SYNDROME 4, INCLUDED
</span>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
NPHP1, DEL
</div>
</span>
&nbsp;&nbsp;
<span class="mim-text-font">
<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=RCV000227323 OR RCV001251510 OR RCV002518310 OR RCV002519780" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000227323, RCV001251510, RCV002518310, RCV002519780" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000227323...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p />
<p><strong><em>Nephronophthisis 1</em></strong></p><p>
Approximately 80% of patients with nephronophthisis (NPHP1; <a href="/entry/256100">256100</a>) demonstrate a homozygous deletion of about 290 kb that encompasses the NPHP1 gene (<a href="#9" class="mim-tip-reference" title="Konrad, M., Saunier, S., Heidet, L., Silbermann, F., Benessy, F., Calado, J., Le Paslier, D., Broyer, M., Gubler, M.-C., Antignac, C. &lt;strong&gt;Large homozygous deletions of the 2q13 region are a major cause of juvenile nephronophthisis.&lt;/strong&gt; Hum. Molec. Genet. 5: 367-371, 1996.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/8852662/&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;8852662&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1093/hmg/5.3.367&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="8852662">Konrad et al., 1996</a>; <a href="#7" class="mim-tip-reference" title="Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M. &lt;strong&gt;A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.&lt;/strong&gt; Nature Genet. 17: 149-153, 1997.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9326933/&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;9326933&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/ng1097-149&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="9326933">Hildebrandt et al., 1997</a>; <a href="#13" class="mim-tip-reference" title="Saunier, S., Calado, J., Benessy, F., Silbermann, F., Heilig, R., Weissenbach, J., Antignac, C. &lt;strong&gt;Characterization of the NPHP1 locus: mutational mechanism involved in deletions in familial juvenile nephronophthisis.&lt;/strong&gt; Am. J. Hum. Genet. 66: 778-789, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/10712196/&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;10712196&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=10712196[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/302819&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="10712196">Saunier et al., 2000</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=9326933+10712196+8852662" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><strong><em>Senior-Loken Syndrome 1</em></strong></p><p>
<a href="#4" class="mim-tip-reference" title="Caridi, G., Murer, L., Bellantuono, R., Sorino, P., Caringella, D. A., Gusmano, R., Ghiggeri, G. M. &lt;strong&gt;Renal-retinal syndromes: association of retinal anomalies and recessive nephronophthisis in patients with homozygous deletion of the NPH1 locus.&lt;/strong&gt; Am. J. Kidney Dis. 32: 1059-1062, 1998.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/9856524/&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;9856524&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/s0272-6386(98)70083-6&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="9856524">Caridi et al. (1998)</a> described Senior-Loken syndrome (SLSN1; <a href="/entry/266900">266900</a>), the association of nephronophthisis with autosomal recessive retinitis pigmentosa, in patients with homozygous deletion of the NPHP1 gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9856524" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p><strong><em>Joubert Syndrome 4</em></strong></p><p>
In 2 sibs with a mild form of Joubert syndrome (JBTS4; <a href="/entry/609583">609583</a>), <a href="#11" class="mim-tip-reference" title="Parisi, M. A., Bennett, C. L., Eckert, M. L., Dobyns, W. B., Gleeson, J. G., Shaw, D. W. W., McDonald, R., Eddy, A., Chance, P. F., Glass, I. A. &lt;strong&gt;The NPHP1 gene deletion associated with juvenile nephronophthisis is present in a subset of individuals with Joubert syndrome.&lt;/strong&gt; Am. J. Hum. Genet. 75: 82-91, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15138899/&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;15138899&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=15138899[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/421846&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="15138899">Parisi et al. (2004)</a> demonstrated homozygous deletion of the NPHP1 gene identical, by mapping, to that in subjects with nephronophthisis alone. A hallmark of that disorder is cerebellar vermis hypoplasia with prominent superior cerebellar peduncles, creating the 'molar tooth sign' (MTS) on axial MRI. <a href="#11" class="mim-tip-reference" title="Parisi, M. A., Bennett, C. L., Eckert, M. L., Dobyns, W. B., Gleeson, J. G., Shaw, D. W. W., McDonald, R., Eddy, A., Chance, P. F., Glass, I. A. &lt;strong&gt;The NPHP1 gene deletion associated with juvenile nephronophthisis is present in a subset of individuals with Joubert syndrome.&lt;/strong&gt; Am. J. Hum. Genet. 75: 82-91, 2004.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/15138899/&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;15138899&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=15138899[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1086/421846&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="15138899">Parisi et al. (2004)</a> suggested that the MTS may be relatively common in patients with juvenile nephronophthisis without classic symptoms of JS. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15138899" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In 4 patients with Joubert syndrome from 3 nonconsanguineous families, <a href="#12" class="mim-tip-reference" title="Parisi, M. A., Doherty, D., Eckert, M. L., Shaw, D. W. W., Ozyurek, H., Aysun, S., Giray, O., Al Swaid, A., Al Shahwan, S., Dohayan, N., Bakhsh, E., Indridason, O. S., Dobyns, W. B., Bennett, C. L., Chance, P. F., Glass, I. A. &lt;strong&gt;AHI1 mutations cause both retinal dystrophy and renal cystic disease in Joubert syndrome.&lt;/strong&gt; J. Med. Genet. 43: 334-339, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16155189/&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;16155189&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=16155189[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1136/jmg.2005.036608&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="16155189">Parisi et al. (2006)</a> identified homozygosity for deletion of the NPHP1 gene. The molar tooth sign in these patients had a distinctive appearance, with elongated but not thickened superior cerebellar peduncles. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16155189" 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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[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9598719/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9598719</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9598719" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
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Benzing, T., Gerke, P., Hopker, K., Hildebrandt, F., Kim, E., Walz, G.
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[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/11493697/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">11493697</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=11493697[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11493697" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
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<a id="Caridi1998" class="mim-anchor"></a>
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Caridi, G., Murer, L., Bellantuono, R., Sorino, P., Caringella, D. A., Gusmano, R., Ghiggeri, G. M.
<strong>Renal-retinal syndromes: association of retinal anomalies and recessive nephronophthisis in patients with homozygous deletion of the NPH1 locus.</strong>
Am. J. Kidney Dis. 32: 1059-1062, 1998.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9856524/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9856524</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9856524" 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/s0272-6386(98)70083-6" target="_blank">Full Text</a>]
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Delous, M., Hellman, N. E., Gaude, H.-M., Silbermann, F., Le Bivic, A., Salomon, R., Antignac, C., Saunier, S.
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[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/19755384/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">19755384</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=19755384[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=19755384" 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/ddp434" target="_blank">Full Text</a>]
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Donaldson, J. C., Dempsey, P. J., Reddy, S., Bouton, A. H., Coffey, R. J., Hanks, S. K.
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[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10739664/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10739664</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10739664" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1006/excr.2000.4822" target="_blank">Full Text</a>]
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Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M.
<strong>A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.</strong>
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[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9326933/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9326933</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9326933" 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/ng1097-149" target="_blank">Full Text</a>]
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[<a href="https://doi.org/10.1093/hmg/ddp068" target="_blank">Full Text</a>]
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Konrad, M., Saunier, S., Heidet, L., Silbermann, F., Benessy, F., Calado, J., Le Paslier, D., Broyer, M., Gubler, M.-C., Antignac, C.
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[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/8852662/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">8852662</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=8852662" 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/5.3.367" target="_blank">Full Text</a>]
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Mollet, G., Silbermann, F., Delous, M., Salomon, R., Antignac, C., Saunier, S.
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[<a href="https://doi.org/10.1093/hmg/ddi061" target="_blank">Full Text</a>]
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<li>
<a id="11" class="mim-anchor"></a>
<a id="Parisi2004" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Parisi, M. A., Bennett, C. L., Eckert, M. L., Dobyns, W. B., Gleeson, J. G., Shaw, D. W. W., McDonald, R., Eddy, A., Chance, P. F., Glass, I. A.
<strong>The NPHP1 gene deletion associated with juvenile nephronophthisis is present in a subset of individuals with Joubert syndrome.</strong>
Am. J. Hum. Genet. 75: 82-91, 2004.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/15138899/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">15138899</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=15138899[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=15138899" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1086/421846" target="_blank">Full Text</a>]
</p>
</div>
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<li>
<a id="12" class="mim-anchor"></a>
<a id="Parisi2006" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Parisi, M. A., Doherty, D., Eckert, M. L., Shaw, D. W. W., Ozyurek, H., Aysun, S., Giray, O., Al Swaid, A., Al Shahwan, S., Dohayan, N., Bakhsh, E., Indridason, O. S., Dobyns, W. B., Bennett, C. L., Chance, P. F., Glass, I. A.
<strong>AHI1 mutations cause both retinal dystrophy and renal cystic disease in Joubert syndrome.</strong>
J. Med. Genet. 43: 334-339, 2006.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/16155189/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">16155189</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=16155189[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16155189" 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.2005.036608" target="_blank">Full Text</a>]
</p>
</div>
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<li>
<a id="13" class="mim-anchor"></a>
<a id="Saunier2000" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Saunier, S., Calado, J., Benessy, F., Silbermann, F., Heilig, R., Weissenbach, J., Antignac, C.
<strong>Characterization of the NPHP1 locus: mutational mechanism involved in deletions in familial juvenile nephronophthisis.</strong>
Am. J. Hum. Genet. 66: 778-789, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/10712196/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">10712196</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=10712196[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=10712196" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1086/302819" target="_blank">Full Text</a>]
</p>
</div>
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<li>
<a id="14" class="mim-anchor"></a>
<a id="Saunier1997" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Saunier, S., Calado, J., Heilig, R., Silbermann, F., Benessy, F., Morin, G., Konrad, M., Broyer, M., Gubler, M.-C., Weissenbach, J., Antignac, C.
<strong>A novel gene that encodes a protein with a putative src homology 3 domain is a candidate gene for familial juvenile nephronophthisis.</strong>
Hum. Molec. Genet. 6: 2317-2323, 1997.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/9361039/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">9361039</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=9361039" 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/6.13.2317" target="_blank">Full Text</a>]
</p>
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<li>
<a id="15" class="mim-anchor"></a>
<a id="Williams2011" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Williams, C. L., Li, C., Kida, K., Inglis, P. N., Mohan, S., Semenec, L., Bialas, N. J., Stupay, R. M., Chen, N., Blacque, O. E., Yoder, B. K., Leroux, M. R.
<strong>MKS and NPHP modules cooperate to establish basal body/transition zone membrane associations and ciliary gate function during ciliogenesis.</strong>
J. Cell. Biol. 192: 1023-1041, 2011.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/21422230/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">21422230</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=21422230[PMID]&report=imagesdocsum" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Image', 'domain': 'ncbi.nlm.nih.gov'})">images</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=21422230" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1083/jcb.201012116" target="_blank">Full Text</a>]
</p>
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</li>
</ol>
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</div>
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</div>
<div>
<a id="contributors" class="mim-anchor"></a>
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<div class="col-lg-2 col-md-2 col-sm-4 col-xs-4">
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<a href="#mimCollapseContributors" role="button" data-toggle="collapse"> Contributors: </a>
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<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Patricia A. Hartz - updated : 4/29/2011
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</div>
<div class="row collapse" id="mimCollapseContributors">
<div class="col-lg-offset-2 col-md-offset-4 col-sm-offset-4 col-xs-offset-2 col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
George E. Tiller - updated : 11/1/2010<br>George E. Tiller - updated : 11/25/2009<br>George E. Tiller - updated : 2/5/2008<br>Victor A. McKusick - updated : 6/10/2004
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<a id="creationDate" class="mim-anchor"></a>
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<div class="col-lg-2 col-md-2 col-sm-4 col-xs-4">
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Creation Date:
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<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Anne M. Stumpf : 7/9/2002
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<a href="#mimCollapseEditHistory" role="button" data-toggle="collapse"> Edit History: </a>
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carol : 04/04/2024
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<div class="col-lg-offset-2 col-md-offset-2 col-sm-offset-4 col-xs-offset-4 col-lg-6 col-md-6 col-sm-6 col-xs-6">
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carol : 11/06/2017<br>alopez : 02/11/2015<br>alopez : 2/11/2015<br>mgross : 5/19/2011<br>mgross : 5/19/2011<br>terry : 4/29/2011<br>alopez : 11/1/2010<br>terry : 11/1/2010<br>terry : 9/7/2010<br>carol : 3/3/2010<br>carol : 3/1/2010<br>wwang : 12/4/2009<br>terry : 11/25/2009<br>wwang : 2/12/2008<br>terry : 2/5/2008<br>alopez : 6/14/2006<br>alopez : 6/10/2004<br>terry : 6/10/2004<br>alopez : 2/24/2004
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<h3>
<span class="mim-font">
<strong>*</strong> 607100
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<span class="mim-font">
NEPHROCYSTIN 1; NPHP1
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<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
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<span class="mim-font">
NPH1
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<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: NPHP1</em></strong>
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<span class="mim-text-font">
<strong>SNOMEDCT:</strong> 204958008, 444830001; &nbsp;
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<strong>
<em>
Cytogenetic location: 2q13
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : 2:110,123,348-110,205,013 </span>
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</strong>
<span class="small">(from NCBI)</span>
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<h4>
<span class="mim-font">
<strong>Gene-Phenotype Relationships</strong>
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<table class="table table-bordered table-condensed small mim-table-padding">
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<th>
Location
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<th>
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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<td rowspan="3">
<span class="mim-font">
2q13
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<span class="mim-font">
Joubert syndrome 4
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<span class="mim-font">
609583
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<span class="mim-font">
Autosomal recessive
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3
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<span class="mim-font">
Nephronophthisis 1, juvenile
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<span class="mim-font">
256100
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<span class="mim-font">
Autosomal recessive
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<span class="mim-font">
3
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<span class="mim-font">
Senior-Loken syndrome-1
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<td>
<span class="mim-font">
266900
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<span class="mim-font">
Autosomal recessive
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<td>
<span class="mim-font">
3
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<span class="mim-font">
<strong>TEXT</strong>
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<span class="mim-font">
<strong>Cloning and Expression</strong>
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<span class="mim-text-font">
<p>The presence of large homozygous deletions of approximately 250 kb (607100.0005) in the 2q13 region in most patients with juvenile nephronophthisis (NPHP1; 256100) allowed Saunier et al. (1997) to define a minimal deletion interval for the NPH1 gene. They established a BAC contig covering this interval. A combination of large-scale genomic sequencing, cDNA selection, and computer-aided analysis led to the characterization of 2 transcriptional units. One encoded the already known BENE protein (602022), and the other encoded a novel protein of at least 732 amino acids containing a putative src homology-3 (SH3) domain. The latter was shown to be the NPHP1 gene. </p><p>Following up on the observation that 65 to 75% of NPH1 patients exhibit large homozygous deletions in the 2q13 region, Hildebrandt et al. (1997) identified 2 genes, called NPHP1 and MALL (for MAL-like; 602022) by them. (The MAL gene (188860) encodes the T-lymphocyte maturation-associated protein.) Hildebrandt et al. (1997) determined that the 4.5-kb NPHP1 transcript encodes a protein with an SH3 domain that is highly conserved throughout evolution. They found that the NPHP1 gene extends over most of the common deletion interval. The 11-kb interval between the 3-prime end of NPHP1 and an inverted repeat containing the distal deletion breakpoint was found to contain the first exon of the MALL gene. </p>
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<span class="mim-font">
<strong>Gene Structure</strong>
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<p>Saunier et al. (1997) determined that the NPHP1 gene, which they identified as a novel gene in the nephronophthisis-1 interval on 2q13, contains at least 20 exons spanning more than 80 kb and is entirely located in the nonduplicated region common to all the NPHP1 deletions. Hildebrandt et al. (1997) likewise detected at least 20 exons, 18 of which have a median size of 95 basepairs. </p>
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<div>
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<h4>
<span class="mim-font">
<strong>Mapping</strong>
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</h4>
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<span class="mim-text-font">
<p>The NPHP1 gene was identified in the minimal deletion interval on chromosome 2q13 for nephronophthisis-1 (Saunier et al., 1997; Hildebrandt et al., 1997). </p>
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<div>
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<h4>
<span class="mim-font">
<strong>Gene Function</strong>
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</h4>
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<span class="mim-text-font">
<p>Using a yeast 2-hybrid screen of an embryonic mouse cDNA library with the C-terminal region of BCAR1 (602941) as bait, Donaldson et al. (2000) detected interaction with the SH3 domain of mouse nephrocystin, which is 83% identical to human nephrocystin. By immunoprecipitation and Western blot analyses, Benzing et al. (2001) showed that nephrocystin interacts with p130Cas (BCAR1), proline-rich tyrosine kinase-2 (PTK2B; 601212), and tensin (TNS; 600076) in embryonic kidney and testis, indicating that these proteins participate in a common signaling pathway. Immunoblot analysis established that expression of nephrocystin induces phosphorylation of PTK2B on tyr402. </p><p>Mollet et al. (2005) showed that NPHP1 interacted with nephrocystin-4 (NPHP4; 607215) and that the last 79 residues of NPHP1 were required for NPHP4 interaction. NPHP4 interacted with BCAR1 and PTK2B similar to NPHP1, and both NPHP1 and NPHP4 localized with alpha-tubulin (see 602529) especially to the primary cilia and microtubule organizing center in MDCK cells. Mollet et al. (2005) suggested that NPHP1 and NPHP4 belong to a multifunctional complex localized in actin- and microtubule-based structures involved in cell-cell and cell-matrix adhesion signaling, as well as in cell division. </p><p>Delous et al. (2009) showed that nephrocystin mRNA expression was dramatically increased during cell polarization, and shRNA-mediated knockdown of either NPHP1 or NPHP4 in MDCK cells resulted in delayed tight junction (TJ) formation, abnormal cilia formation, and disorganized multilumen structures when grown in a 3-dimensional collagen matrix. Some of these phenotypes were similar to those reported for cells depleted of the TJ proteins PALS1 (MPP5; 606958) or PAR3 (PARD3; 606745). A physical interaction between these nephrocystins and PALS1 as well as their partners PATJ (INADL; 603199) and PAR6 (PARD6A; 607484) was demonstrated, and the proteins partially colocalized in human renal tubules. The authors concluded that the nephrocystins play an essential role in epithelial cell organization, suggesting a mechanism by which the histopathologic features of nephronophthisis might develop. </p><p>Williams et al. (2011) showed that the conserved proteins Mks1 (609883), Mksr1 (B9D1), Mksr2 (B9D2; 611951), Tmem67 (609884), Rpgrip1l (610937), Cc2d2a (612013), Nphp1, and Nphp4 functioned at an early stage of ciliogenesis in C. elegans. These 8 proteins localized to the ciliary transition zone and established attachments between the basal body and transition zone membrane. They also provided a docking site that restricted vesicle fusion to vesicles containing ciliary proteins. </p>
</span>
<div>
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<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p><strong><em>Deletion at the NPHP1 Locus</em></strong></p><p>
Konrad et al. (1996) observed that mutation in the NPH1 gene appears to be responsible for the vast majority (approximately 85%) of the purely renal forms of juvenile nephronophthisis, that is, cases without extrarenal features such as ocular lesions. By haplotype analysis, Konrad et al. (1996) identified 2 DNA markers flanking the NPH1 gene at loci D2S1890 and D2S1888. This interval of approximately 2 cM and the surrounding region was cloned in a YAC contig. The region turned out to be partially duplicated on 2p12. Further, several markers mapped to more than 1 locus within the NPH1 region on 2q13, suggesting to them the presence of low copy repeats. As low copy repeats predispose to large-scale chromosomal rearrangements, Konrad et al. (1996) performed PCR analysis of sequence tagged sites (STSs) mapping to the region. By this approach, they detected large-scale rearrangements in 80% of the patients belonging to inbred or multiplex NPH1 families and in 65% of the sporadic cases. In most cases these rearrangements appeared to be large homozygous deletions of approximately 250 kb involving a 100-kb inverted duplication (607100.0005). This suggested a common genetic disease-causing mechanism that could be responsible for the highest frequency of large rearrangements reported in an autosomal recessive disorder. The authors stated that their findings were of major clinical interest because they permitted the diagnosis of the disorder in most sporadic cases, thus avoiding the need for kidney biopsy. </p><p>Hildebrandt et al. (1997) found that both the MALL and NPHP1 genes were homozygously deleted in patients from 16 of 22 families with nephronophthisis showing linkage to the 2q13 region. </p><p>Ala-Mello et al. (1998) studied 14 Finnish families with NPHP1. Deletions of the NPH1 locus were found in 12 patients from 9 families. Haplotype analysis using markers D2S340, D2S1889, and D2S1893 showed no evidence of a founder effect. Linkage analysis showed a lod score of 1.39 to 3.89 at theta = 0.0 in those families with a deletion with markers D2S176, D2S293, and D2S340. Linkage to 2q13 was excluded in those families with no deletion by combined lod score values between -4.7 and -1.69 at theta = 0.01. End-stage renal disease occurred at a more advanced age in patients without deletions. </p><p>Betz et al. (2000) reported 2 patients with nephronophthisis-1 associated with Cogan-type congenital ocular motor apraxia (COMA; 257550). One patient had large deletions on each chromosome 2q13, while the other had a deletion encompassing the NPHP1 gene on one chromosome 2q13 and a point mutation of the NPHP1 gene (607100.0004) in the other chromosome 2q13. </p><p>Caridi et al. (1998) demonstrated the association of nephronophthisis with retinitis pigmentosa (Senior-Loken syndrome; 266900) in patients with homozygous deletion in the NPHP1 gene. </p><p>By large-scale genomic sequencing and pulsed field gel electrophoresis analysis, Saunier et al. (2000) characterized the complex organization of the NPHP1 locus and determined the mutational mechanism that results in the large deletion that is found in approximately 80% of patients. They showed that the deletion is 290 kb long and that NPHP1 is flanked by 2 large inverted repeats of approximately 330 kb. In addition, a second sequence of 45 kb located adjacent to the proximal 330-kb repeat was shown to be directly repeated 250 kb away within the distal 330-kb repeat deleting a sequence tag site present in the proximal copy. The patients' deletion breakpoints appeared to be located within the 45-kb repeat, suggesting an unequal recombination between the 2 homologous copies of this smaller repeat. Moreover, in 11 patients, they demonstrated a nonpathologic rearrangement involving the two 330-kb inverted repeats, and the same rearrangement was found in homozygous state in 2 (1.3%) control individuals. This could be explained by interchromosomal mispairing of the 330-kb inverted repeat, followed by double recombination or by a prior intrachromosomal mispairing of these repeats, leading to an inversion of the NPHP1 region, followed by an interchromosomal unequal crossover event. This complex rearrangement, as well as the common deletion found in most patients, illustrates the high level of rearrangements occurring in the centromeric region of chromosome 2. </p><p>Joubert syndrome (JS; 213300) is an autosomal recessive multisystem disease characterized by cerebellar vermis hypoplasia with prominent superior cerebellar peduncles (resulting in the 'molar tooth sign,' or MTS, on axial MRI), mental retardation, hypotonia, irregular breathing pattern, and eye movement abnormalities. Some individuals with JS have retinal dystrophy and/or progressive renal failure characterized as nephronophthisis. The disorder in such patients is referred to as cerebellooculorenal syndrome, or CORS. Parisi et al. (2004) screened for mutations in the NPHP1 gene by standard methods in a cohort of 25 subjects with JS and renal and/or retinal complications and in 2 subjects with juvenile nephronophthisis only. Two sibs with a mild form of JS had a homozygous deletion of the NPHP1 gene identical, by mapping, to that in subjects with nephronophthisis alone. </p><p><strong><em>Mutation of the NPHP1 gene</em></strong></p><p>
In 2 patients carrying the large deletion of the NPH1 region on only 1 allele, Saunier et al. (1997) detected 2 mutations in 2 independent exons of the NPHP1 gene. One consisted of a single base deletion, causing a frameshift, and the other was a G-to-A substitution in the consensus 5-prime splice donor site. Both mutations potentially generated null mutants. One of these mutations was found to segregate with the disease in the family, and the second appeared to be a de novo mutation. </p><p>In NPH1 patients who carried a hemizygous deletion at the NPHP1 region, Hildebrandt et al. (1997) detected additional point mutations in NPHP1 but not in the adjacent gene MALL. </p>
</span>
<div>
<br />
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<div>
<h4>
<span class="mim-font">
<strong>Animal Model</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Jiang et al. (2009) used Nphp1-mutant mice carrying an exon 20 deletion and transgenic mice expressing EmGFP-tagged nephrocystin to demonstrate that nephrocystin was localized to the connecting cilium axoneme, where it affected the sorting mechanism and transportation efficiency of the intraflagellar transport between inner and outer segments of photoreceptors. </p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>5 Selected Examples):</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
NPHP1, IVS18, G-T, +1
<br />
SNP: rs1233478832,
gnomAD: rs1233478832,
ClinVar: RCV000003682, RCV001851623, RCV003466796, RCV005016232
</span>
</div>
<div>
<span class="mim-text-font">
<p>Hildebrandt et al. (1997) performed SSCP for 18 of the 20 exons of the NPH1 gene in 6 multiplex and 6 simplex nephronophthisis-1 (NPHP1; 256100) families in which PCR was negative for a homozygous deletion in the 2q13 region. In 3 NPH1 families, hemizygous mutations were found, in which a heterozygous paternal deletion was combined with a heterozygous maternal point mutation. In 1 family the mother was heterozygous for a G-to-T transversion at position 1 of the splice donor consensus of exon 18 in the NPHP1 gene. The affected child was hemizygous for the transversion. </p>
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<h4>
<span class="mim-font">
<strong>.0002 &nbsp; NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
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<div>
<span class="mim-text-font">
NPHP1, IVS14, 1-BP DEL, G, +1
<br />
SNP: rs747861275,
gnomAD: rs747861275,
ClinVar: RCV000003683, RCV000550431
</span>
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<div>
<span class="mim-text-font">
<p>In the family of a child with nephronophthisis (NPHP1; 256100), Hildebrandt et al. (1997) found that the father was hemizygous for the wildtype sequence (carrying the deletion on the other chromosome), whereas the mother was heterozygous for deletion of G at position +1 of the canonical splice donor consensus sequence of exon 14 in the NPHP1 gene; the affected child was hemizygous for the single nucleotide deletion. </p>
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<h4>
<span class="mim-font">
<strong>.0003 &nbsp; NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
NPHP1, LEU27TER
<br />
SNP: rs121907898,
gnomAD: rs121907898,
ClinVar: RCV000003684, RCV000234828
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a child with nephronophthisis (NPHP1; 256100), Hildebrandt et al. (1997) found hemizygosity for a nonsense mutation in the NPHP1 gene; a T-to-A transversion in exon 2 converted codon TTG (leu) to TAG (stop). The mother was heterozygous for this mutation. </p>
</span>
</div>
<div>
<br />
</div>
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<div>
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<h4>
<span class="mim-font">
<strong>.0004 &nbsp; NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
NPHP1, GLY343ARG
<br />
SNP: rs121907899,
gnomAD: rs121907899,
ClinVar: RCV000003685, RCV000520742, RCV000537800, RCV000778560, RCV003466797, RCV004018547, RCV004814818, RCV005025001
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a child with nephronophthisis (NPHP1; 256100) associated with Cogan-type congenital ocular motor apraxia (COMA; 257550), Betz et al. (2000) identified hemizygosity for a G-to-A transition at nucleotide 1027 of the NPHP1 gene, leading to a gly343-to-arg substitution and an alteration of an 80% conserved splice donor consensus. The NPHP1 gene was deleted on the other allele. The mother and a healthy child were heterozygous for this point mutation. </p>
</span>
</div>
<div>
<br />
</div>
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<div>
<div>
<h4>
<span class="mim-font">
<strong>.0005 &nbsp; NEPHRONOPHTHISIS 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
SENIOR-LOKEN SYNDROME 1, INCLUDED<br />
JOUBERT SYNDROME 4, INCLUDED
</span>
</div>
<div>
<span class="mim-text-font">
NPHP1, DEL
<br />
ClinVar: RCV000227323, RCV001251510, RCV002518310, RCV002519780
</span>
</div>
<div>
<span class="mim-text-font">
<p />
<p><strong><em>Nephronophthisis 1</em></strong></p><p>
Approximately 80% of patients with nephronophthisis (NPHP1; 256100) demonstrate a homozygous deletion of about 290 kb that encompasses the NPHP1 gene (Konrad et al., 1996; Hildebrandt et al., 1997; Saunier et al., 2000). </p><p><strong><em>Senior-Loken Syndrome 1</em></strong></p><p>
Caridi et al. (1998) described Senior-Loken syndrome (SLSN1; 266900), the association of nephronophthisis with autosomal recessive retinitis pigmentosa, in patients with homozygous deletion of the NPHP1 gene. </p><p><strong><em>Joubert Syndrome 4</em></strong></p><p>
In 2 sibs with a mild form of Joubert syndrome (JBTS4; 609583), Parisi et al. (2004) demonstrated homozygous deletion of the NPHP1 gene identical, by mapping, to that in subjects with nephronophthisis alone. A hallmark of that disorder is cerebellar vermis hypoplasia with prominent superior cerebellar peduncles, creating the 'molar tooth sign' (MTS) on axial MRI. Parisi et al. (2004) suggested that the MTS may be relatively common in patients with juvenile nephronophthisis without classic symptoms of JS. </p><p>In 4 patients with Joubert syndrome from 3 nonconsanguineous families, Parisi et al. (2006) identified homozygosity for deletion of the NPHP1 gene. The molar tooth sign in these patients had a distinctive appearance, with elongated but not thickened superior cerebellar peduncles. </p>
</span>
</div>
<div>
<br />
</div>
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>REFERENCES</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<ol>
<li>
<p class="mim-text-font">
Ala-Mello, S., Sankila, E.-M., Koskimies, O., de la Chapelle, A., Kaariainen, H.
<strong>Molecular studies in Finnish patients with familial juvenile nephronophthisis exclude a founder effect and support a common mutation causing mechanism.</strong>
J. Med. Genet. 35: 279-283, 1998.
[PubMed: 9598719]
[Full Text: https://doi.org/10.1136/jmg.35.4.279]
</p>
</li>
<li>
<p class="mim-text-font">
Benzing, T., Gerke, P., Hopker, K., Hildebrandt, F., Kim, E., Walz, G.
<strong>Nephrocystin interacts with Pyk2, p130(Cas), and tensin and triggers phosphorylation of Pyk2.</strong>
Proc. Nat. Acad. Sci. 98: 9784-9789, 2001.
[PubMed: 11493697]
[Full Text: https://doi.org/10.1073/pnas.171269898]
</p>
</li>
<li>
<p class="mim-text-font">
Betz, R., Rensing, C., Otto, E., Mincheva, A., Zehnder, D., Lichter, P., Hildebrandt, F.
<strong>Children with ocular motor apraxia type Cogan carry deletions in the gene (NPHP1) for juvenile nephronophthisis.</strong>
J. Pediat. 136: 828-831, 2000.
[PubMed: 10839884]
</p>
</li>
<li>
<p class="mim-text-font">
Caridi, G., Murer, L., Bellantuono, R., Sorino, P., Caringella, D. A., Gusmano, R., Ghiggeri, G. M.
<strong>Renal-retinal syndromes: association of retinal anomalies and recessive nephronophthisis in patients with homozygous deletion of the NPH1 locus.</strong>
Am. J. Kidney Dis. 32: 1059-1062, 1998.
[PubMed: 9856524]
[Full Text: https://doi.org/10.1016/s0272-6386(98)70083-6]
</p>
</li>
<li>
<p class="mim-text-font">
Delous, M., Hellman, N. E., Gaude, H.-M., Silbermann, F., Le Bivic, A., Salomon, R., Antignac, C., Saunier, S.
<strong>Nephrocystin-1 and nephrocystin-4 are required for epithelial morphogenesis and associate with PALS1/PATJ and Par6.</strong>
Hum. Molec. Genet. 18: 4711-4723, 2009.
[PubMed: 19755384]
[Full Text: https://doi.org/10.1093/hmg/ddp434]
</p>
</li>
<li>
<p class="mim-text-font">
Donaldson, J. C., Dempsey, P. J., Reddy, S., Bouton, A. H., Coffey, R. J., Hanks, S. K.
<strong>Crk-associated substrate p130(Cas) interacts with nephrocystin and both proteins localize to cell-cell contacts of polarized epithelial cells.</strong>
Exp. Cell Res. 256: 168-175, 2000.
[PubMed: 10739664]
[Full Text: https://doi.org/10.1006/excr.2000.4822]
</p>
</li>
<li>
<p class="mim-text-font">
Hildebrandt, F., Otto, E., Rensing, C., Nothwang, H. G., Vollmer, M., Adolphs, J., Hanusch, H., Brandis, M.
<strong>A novel gene encoding an SH3 domain protein is mutated in nephronophthisis type 1.</strong>
Nature Genet. 17: 149-153, 1997.
[PubMed: 9326933]
[Full Text: https://doi.org/10.1038/ng1097-149]
</p>
</li>
<li>
<p class="mim-text-font">
Jiang, S.-T., Chiou, Y.-Y., Wang, E., Chien, Y.-L., Ho, H.-H., Tsai, F.-J., Lin, C.-Y., Tsai, S.-P., Li, H.
<strong>Essential role of nephrocystin in photoreceptor intraflagellar transport in mouse.</strong>
Hum. Molec. Genet. 18: 1566-1577, 2009.
[PubMed: 19208653]
[Full Text: https://doi.org/10.1093/hmg/ddp068]
</p>
</li>
<li>
<p class="mim-text-font">
Konrad, M., Saunier, S., Heidet, L., Silbermann, F., Benessy, F., Calado, J., Le Paslier, D., Broyer, M., Gubler, M.-C., Antignac, C.
<strong>Large homozygous deletions of the 2q13 region are a major cause of juvenile nephronophthisis.</strong>
Hum. Molec. Genet. 5: 367-371, 1996.
[PubMed: 8852662]
[Full Text: https://doi.org/10.1093/hmg/5.3.367]
</p>
</li>
<li>
<p class="mim-text-font">
Mollet, G., Silbermann, F., Delous, M., Salomon, R., Antignac, C., Saunier, S.
<strong>Characterization of the nephrocystin/nephrocystin-4 complex and subcellular localization of nephrocystin-4 to primary cilia and centrosomes.</strong>
Hum. Molec. Genet. 14: 645-656, 2005.
[PubMed: 15661758]
[Full Text: https://doi.org/10.1093/hmg/ddi061]
</p>
</li>
<li>
<p class="mim-text-font">
Parisi, M. A., Bennett, C. L., Eckert, M. L., Dobyns, W. B., Gleeson, J. G., Shaw, D. W. W., McDonald, R., Eddy, A., Chance, P. F., Glass, I. A.
<strong>The NPHP1 gene deletion associated with juvenile nephronophthisis is present in a subset of individuals with Joubert syndrome.</strong>
Am. J. Hum. Genet. 75: 82-91, 2004.
[PubMed: 15138899]
[Full Text: https://doi.org/10.1086/421846]
</p>
</li>
<li>
<p class="mim-text-font">
Parisi, M. A., Doherty, D., Eckert, M. L., Shaw, D. W. W., Ozyurek, H., Aysun, S., Giray, O., Al Swaid, A., Al Shahwan, S., Dohayan, N., Bakhsh, E., Indridason, O. S., Dobyns, W. B., Bennett, C. L., Chance, P. F., Glass, I. A.
<strong>AHI1 mutations cause both retinal dystrophy and renal cystic disease in Joubert syndrome.</strong>
J. Med. Genet. 43: 334-339, 2006.
[PubMed: 16155189]
[Full Text: https://doi.org/10.1136/jmg.2005.036608]
</p>
</li>
<li>
<p class="mim-text-font">
Saunier, S., Calado, J., Benessy, F., Silbermann, F., Heilig, R., Weissenbach, J., Antignac, C.
<strong>Characterization of the NPHP1 locus: mutational mechanism involved in deletions in familial juvenile nephronophthisis.</strong>
Am. J. Hum. Genet. 66: 778-789, 2000.
[PubMed: 10712196]
[Full Text: https://doi.org/10.1086/302819]
</p>
</li>
<li>
<p class="mim-text-font">
Saunier, S., Calado, J., Heilig, R., Silbermann, F., Benessy, F., Morin, G., Konrad, M., Broyer, M., Gubler, M.-C., Weissenbach, J., Antignac, C.
<strong>A novel gene that encodes a protein with a putative src homology 3 domain is a candidate gene for familial juvenile nephronophthisis.</strong>
Hum. Molec. Genet. 6: 2317-2323, 1997.
[PubMed: 9361039]
[Full Text: https://doi.org/10.1093/hmg/6.13.2317]
</p>
</li>
<li>
<p class="mim-text-font">
Williams, C. L., Li, C., Kida, K., Inglis, P. N., Mohan, S., Semenec, L., Bialas, N. J., Stupay, R. M., Chen, N., Blacque, O. E., Yoder, B. K., Leroux, M. R.
<strong>MKS and NPHP modules cooperate to establish basal body/transition zone membrane associations and ciliary gate function during ciliogenesis.</strong>
J. Cell. Biol. 192: 1023-1041, 2011.
[PubMed: 21422230]
[Full Text: https://doi.org/10.1083/jcb.201012116]
</p>
</li>
</ol>
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