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Entry
- *300278 - NYCTALOPIN; NYX
- OMIM
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<span class="h4">*300278</span>
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<strong>Table of Contents</strong>
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<div><a href="https://hprd.org/summary?hprd_id=02232&isoform_id=02232_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/NYX" 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/11877212,11993321,85567287,119579803,119579804,119579805,1978061440,1978062684,2664702793" 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/Q9GZU5" 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=60506" 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=ENSG00000188937;t=ENST00000378220" 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=NYX" 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=NYX" 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+60506" 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/NYX" 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:60506" 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/60506" 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=chrX&hgg_gene=ENST00000378220.3&hgg_start=41447343&hgg_end=41475652&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">
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<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>
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<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:8082" 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:8082" 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/nyx" 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=300278[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=300278[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/NYX/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/ENSG00000188937" 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.gwascentral.org/search?q=NYX" 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=NYX" 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="http://www.retina-international.org/files/sci-news/nyxmut.htm" class="mim-tip-hint" title="A gene-specific database of variation." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Locus Specific DB', 'domain': 'locus-specific-db.org'})">Locus Specific DBs</a></div>
<div><a href="https://evs.gs.washington.edu/EVS/PopStatsServlet?searchBy=Gene+Hugo&target=NYX&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/PA31871" 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:8082" 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:2448607" 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/NYX#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:2448607" 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/60506/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=60506" 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=WBGene00020693;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-061026-3" 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">
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<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=NYX&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">
&nbsp;
</div>
<div>
<span class="h3">
<span class="mim-font mim-tip-hint" title="Gene description">
<span class="text-danger"><strong>*</strong></span>
300278
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
NYCTALOPIN; NYX
</span>
</h3>
</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=NYX" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">NYX</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/X/179?start=-3&limit=10&highlight=179">Xp11.4</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chrX:41447343-41475652&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'})">X:41,447,343-41,475,652</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
</th>
<th>
Phenotype <br /> MIM number
</th>
<th>
Inheritance
</th>
<th>
Phenotype <br /> mapping key
</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="1">
<span class="mim-font">
<a href="/geneMap/X/179?start=-3&limit=10&highlight=179">
Xp11.4
</a>
</span>
</td>
<td>
<span class="mim-font">
Night blindness, congenital stationary (complete), 1A, X-linked
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/310500"> 310500 </a>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="X-linked recessive">XLR</abbr>
</span>
</td>
<td>
<span class="mim-font">
<abbr class="mim-tip-hint" title="3 - The molecular basis of the disorder is known">3</abbr>
</span>
</td>
</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/300278" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/300278" 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>By positional cloning and the candidate gene approach, directed at the elucidation of the defect in complete congenital stationary night blindness (CSNB1; <a href="/entry/310500">310500</a>), <a href="#1" class="mim-tip-reference" title="Bech-Hansen, N. T., Naylor, M. J., Maybaum, T. A., Sparkes, R. L., Koop, B., Birch, D. G., Bergen, A. A. B., Prinsen, C. F. M., Polomeno, R. C., Gal, A., Drack, A. V., Musarella, M. A., Jacobson, S. G., Young, R. S. L., Weleber, R. G. &lt;strong&gt;Mutations in NYX, encoding the leucine-rich proteoglycan nyctalopin, cause X-linked complete congenital stationary night blindness.&lt;/strong&gt; Nature Genet. 26: 319-323, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11062471/&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;11062471&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/81619&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="11062471">Bech-Hansen et al. (2000)</a> identified a novel gene, NYX, that encodes a protein (nyctalopin) of 481 amino acids. Nyctalopin shows sequence similarity with members of the superfamily of proteins containing tandem arrays of the leucine-rich repeat (LRR) motif, as well as other features qualifying the protein as a member of the subfamily of small leucine-rich proteoglycans (SLRPs). By PCR amplification of tissue-specific cDNA, <a href="#1" class="mim-tip-reference" title="Bech-Hansen, N. T., Naylor, M. J., Maybaum, T. A., Sparkes, R. L., Koop, B., Birch, D. G., Bergen, A. A. B., Prinsen, C. F. M., Polomeno, R. C., Gal, A., Drack, A. V., Musarella, M. A., Jacobson, S. G., Young, R. S. L., Weleber, R. G. &lt;strong&gt;Mutations in NYX, encoding the leucine-rich proteoglycan nyctalopin, cause X-linked complete congenital stationary night blindness.&lt;/strong&gt; Nature Genet. 26: 319-323, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11062471/&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;11062471&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/81619&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="11062471">Bech-Hansen et al. (2000)</a> detected expression of NYX in retina and kidney only. In the retina it appeared to be expressed in photoreceptors, bipolar and amacrine interneurons, and ganglion cells. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11062471" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p>
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<p><a href="#1" class="mim-tip-reference" title="Bech-Hansen, N. T., Naylor, M. J., Maybaum, T. A., Sparkes, R. L., Koop, B., Birch, D. G., Bergen, A. A. B., Prinsen, C. F. M., Polomeno, R. C., Gal, A., Drack, A. V., Musarella, M. A., Jacobson, S. G., Young, R. S. L., Weleber, R. G. &lt;strong&gt;Mutations in NYX, encoding the leucine-rich proteoglycan nyctalopin, cause X-linked complete congenital stationary night blindness.&lt;/strong&gt; Nature Genet. 26: 319-323, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11062471/&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;11062471&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/81619&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="11062471">Bech-Hansen et al. (2000)</a> studied 22 families with X-linked complete CSNB and found 14 different mutations, including 1 founder mutation in 7 families from the United States, in the NYX gene. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11062471" 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="Pusch, C. M., Zeitz, C., Brandau, O., Pesch, K., Achatz, H., Feil, S., Scharfe, C., Maurer, J., Jacobi, F. K., Pinckers, A., Andreasson, S., Hardcastle, A., Wissinger, B., Berger, W., Meindl, A. &lt;strong&gt;The complete form of X-linked congenital stationary night blindness is caused by mutations in a gene encoding a leucine-rich repeat protein.&lt;/strong&gt; Nature Genet. 26: 324-327, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11062472/&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;11062472&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/81627&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="11062472">Pusch et al. (2000)</a> likewise detected 14 different mutations. In 3 families the gene was partially deleted. They found expression of the gene at low levels in retina, brain, testis, and muscle. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11062472" 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>Animal Model</strong>
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<p><a href="#2" class="mim-tip-reference" title="Gregg, R. G., Mukhopadhyay, S., Candille, S. I., Ball., S. L., Pardue, M. T., McCall, M. A., Peachey, N. S. &lt;strong&gt;Identification of the gene and the mutation responsible for the mouse nob phenotype.&lt;/strong&gt; Invest. Ophthal. Vis. Sci. 44: 378-384, 2003.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/12506099/&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;12506099&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1167/iovs.02-0501&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="12506099">Gregg et al. (2003)</a> studied the naturally occurring mouse mutant nob (no b-wave) to determine whether it provided an animal model for the complete form of human X-linked congenital stationary night blindness. They found that the nob phenotype was caused by an 85-bp deletion in the mouse Nyx gene. Behavioral testing showed that the nob mice had a significant decrease in visual sensitivity. Thus, they concluded, the nob mouse was a model for human CSNB1. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12506099" 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="allelicVariants" class="mim-anchor"></a>
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<strong>ALLELIC VARIANTS (<a href="/help/faq#1_4"></strong>
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<strong>6 Selected Examples</a>):</strong>
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<a href="/allelicVariants/300278" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=300278[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>
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<strong>.0001&nbsp;NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
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NYX, 24-BP DEL
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<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs281865194 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs281865194;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs281865194" 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=rs281865194" 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=RCV000086275 OR RCV001073621 OR RCV001847656" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000086275, RCV001073621, RCV001847656" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000086275...</a>
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<p>In 7 families from the United States, <a href="#1" class="mim-tip-reference" title="Bech-Hansen, N. T., Naylor, M. J., Maybaum, T. A., Sparkes, R. L., Koop, B., Birch, D. G., Bergen, A. A. B., Prinsen, C. F. M., Polomeno, R. C., Gal, A., Drack, A. V., Musarella, M. A., Jacobson, S. G., Young, R. S. L., Weleber, R. G. &lt;strong&gt;Mutations in NYX, encoding the leucine-rich proteoglycan nyctalopin, cause X-linked complete congenital stationary night blindness.&lt;/strong&gt; Nature Genet. 26: 319-323, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11062471/&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;11062471&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/81619&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="11062471">Bech-Hansen et al. (2000)</a> found that the same in-phase 24-bp deletion was associated with X-linked complete congenital stationary night blindness (<a href="/entry/310500">310500</a>). The deletion was predicted to result in the loss of the 8 amino acids RACPAACA from the N-terminal cysteine cluster of nyctalopin. A genotype analysis of the X chromosomes with this deletion suggested that these families share a common founder mutation. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11062471" 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>.0002&nbsp;NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
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NYX, TRP350TER
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<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> rs62637037 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs62637037;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/rs62637037?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=rs62637037" 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=rs62637037" 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=RCV000012174 OR RCV000086260 OR RCV002247327" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000012174, RCV000086260, RCV002247327" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000012174...</a>
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<p>In 2 large pedigrees of Hispanic origin (from Costa Rica), <a href="#1" class="mim-tip-reference" title="Bech-Hansen, N. T., Naylor, M. J., Maybaum, T. A., Sparkes, R. L., Koop, B., Birch, D. G., Bergen, A. A. B., Prinsen, C. F. M., Polomeno, R. C., Gal, A., Drack, A. V., Musarella, M. A., Jacobson, S. G., Young, R. S. L., Weleber, R. G. &lt;strong&gt;Mutations in NYX, encoding the leucine-rich proteoglycan nyctalopin, cause X-linked complete congenital stationary night blindness.&lt;/strong&gt; Nature Genet. 26: 319-323, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11062471/&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;11062471&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/81619&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="11062471">Bech-Hansen et al. (2000)</a> found that X-linked complete congenital stationary night blindness (<a href="/entry/310500">310500</a>) was associated with a trp350-to-ter (W350X) mutation in the NYX gene. This was predicted to eliminate the portion of nyctalopin required for establishing the GPI anchor, and potentially resulted in the protein being soluble rather than membrane-tethered. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11062471" 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="0003" class="mim-anchor"></a>
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<strong>.0003&nbsp;NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
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NYX, CYS35TER
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&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs62637021 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs62637021;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs62637021" 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=rs62637021" 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=RCV000012175 OR RCV000086261" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000012175, RCV000086261" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000012175...</a>
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<span class="mim-text-font">
<p>In 4 families, <a href="#3" class="mim-tip-reference" title="Pusch, C. M., Zeitz, C., Brandau, O., Pesch, K., Achatz, H., Feil, S., Scharfe, C., Maurer, J., Jacobi, F. K., Pinckers, A., Andreasson, S., Hardcastle, A., Wissinger, B., Berger, W., Meindl, A. &lt;strong&gt;The complete form of X-linked congenital stationary night blindness is caused by mutations in a gene encoding a leucine-rich repeat protein.&lt;/strong&gt; Nature Genet. 26: 324-327, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11062472/&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;11062472&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/81627&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="11062472">Pusch et al. (2000)</a> found that complete congenital stationary night blindness (<a href="/entry/310500">310500</a>) was associated with a cys35-to-ter (C35X) mutation in the NYX gene, resulting from a C-to-A transversion at nucleotide 105, changing TGC to TGA. No evidence for a founder allele was found for these families. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11062472" 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="0004" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0004&nbsp;NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
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NYX, ALA187LYS
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&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs62637027 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs62637027;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs62637027" 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=rs62637027" 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=RCV000012176 OR RCV000086268" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000012176, RCV000086268" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000012176...</a>
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<span class="mim-text-font">
<p><a href="#3" class="mim-tip-reference" title="Pusch, C. M., Zeitz, C., Brandau, O., Pesch, K., Achatz, H., Feil, S., Scharfe, C., Maurer, J., Jacobi, F. K., Pinckers, A., Andreasson, S., Hardcastle, A., Wissinger, B., Berger, W., Meindl, A. &lt;strong&gt;The complete form of X-linked congenital stationary night blindness is caused by mutations in a gene encoding a leucine-rich repeat protein.&lt;/strong&gt; Nature Genet. 26: 324-327, 2000.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/11062472/&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;11062472&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1038/81627&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="11062472">Pusch et al. (2000)</a> found an ala187-to-lys (A187K) mutation in the NYX gene in affected members of 3 families from Sweden with congenital stationary night blindness (<a href="/entry/310500">310500</a>). They were found to share a common haplotype. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11062472" 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>.0005&nbsp;NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
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<div style="float: left;">
NYX, ARG94PRO
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</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs104894910 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs104894910;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs104894910" 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=rs104894910" 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=RCV000012177" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000012177" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000012177</a>
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<p>In affected members of a large Chinese family with congenital stationary night blindness (<a href="/entry/310500">310500</a>), <a href="#4" class="mim-tip-reference" title="Xiao, X., Jia, X., Guo, X., Li, S., Yang, Z., Zhang, Q. &lt;strong&gt;CSNB1 in Chinese families associated with novel mutations in NYX.&lt;/strong&gt; J. Hum. Genet. 51: 634-640, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16670814/&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;16670814&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s10038-006-0406-5&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="16670814">Xiao et al. (2006)</a> identified a 281G-C transversion in the NYX gene, resulting in an arg94-to-pro (R94P) substitution in the second leucine-rich repeat of the protein. The mutation was not identified in 96 control individuals. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16670814" 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="0006" class="mim-anchor"></a>
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<span class="mim-font">
<strong>.0006&nbsp;NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
</span>
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</div>
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<span class="mim-text-font">
<div style="float: left;">
NYX, ILE101THR
</div>
</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs104894911 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs104894911;toggle_HGVS_names=open" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'dbSNP', 'domain': 'ensembl.org'})">Ensembl</a></li> <li><a href="https://www.ncbi.nlm.nih.gov/snp/?term=rs104894911" 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=rs104894911" 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=RCV000012178" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000012178" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000012178</a>
</span>
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<div>
<span class="mim-text-font">
<p>In a Chinese boy with congenital stationary night blindness (<a href="/entry/310500">310500</a>), <a href="#4" class="mim-tip-reference" title="Xiao, X., Jia, X., Guo, X., Li, S., Yang, Z., Zhang, Q. &lt;strong&gt;CSNB1 in Chinese families associated with novel mutations in NYX.&lt;/strong&gt; J. Hum. Genet. 51: 634-640, 2006.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/16670814/&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;16670814&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1007/s10038-006-0406-5&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="16670814">Xiao et al. (2006)</a> identified a 302T-C transition in the NYX gene, resulting in an ile101-to-thr (I101T) substitution in the third leucine-rich repeat of the protein. Two additional male family members were affected, although molecular analysis was not performed. The mutation was not identified in 96 control individuals. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16670814" 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>
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<a id="references"class="mim-anchor"></a>
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<span class="mim-font">
<span id="mimReferencesToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<strong>REFERENCES</strong>
</span>
</h4>
<div>
<p />
</div>
<div id="mimReferencesFold" class="collapse in mimTextToggleFold">
<ol>
<li>
<a id="1" class="mim-anchor"></a>
<a id="Bech-Hansen2000" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Bech-Hansen, N. T., Naylor, M. J., Maybaum, T. A., Sparkes, R. L., Koop, B., Birch, D. G., Bergen, A. A. B., Prinsen, C. F. M., Polomeno, R. C., Gal, A., Drack, A. V., Musarella, M. A., Jacobson, S. G., Young, R. S. L., Weleber, R. G.
<strong>Mutations in NYX, encoding the leucine-rich proteoglycan nyctalopin, cause X-linked complete congenital stationary night blindness.</strong>
Nature Genet. 26: 319-323, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/11062471/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">11062471</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11062471" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/81619" target="_blank">Full Text</a>]
</p>
</div>
</li>
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<a id="2" class="mim-anchor"></a>
<a id="Gregg2003" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Gregg, R. G., Mukhopadhyay, S., Candille, S. I., Ball., S. L., Pardue, M. T., McCall, M. A., Peachey, N. S.
<strong>Identification of the gene and the mutation responsible for the mouse nob phenotype.</strong>
Invest. Ophthal. Vis. Sci. 44: 378-384, 2003.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/12506099/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">12506099</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=12506099" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1167/iovs.02-0501" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="3" class="mim-anchor"></a>
<a id="Pusch2000" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Pusch, C. M., Zeitz, C., Brandau, O., Pesch, K., Achatz, H., Feil, S., Scharfe, C., Maurer, J., Jacobi, F. K., Pinckers, A., Andreasson, S., Hardcastle, A., Wissinger, B., Berger, W., Meindl, A.
<strong>The complete form of X-linked congenital stationary night blindness is caused by mutations in a gene encoding a leucine-rich repeat protein.</strong>
Nature Genet. 26: 324-327, 2000.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/11062472/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">11062472</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=11062472" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1038/81627" target="_blank">Full Text</a>]
</p>
</div>
</li>
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<a id="4" class="mim-anchor"></a>
<a id="Xiao2006" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Xiao, X., Jia, X., Guo, X., Li, S., Yang, Z., Zhang, Q.
<strong>CSNB1 in Chinese families associated with novel mutations in NYX.</strong>
J. Hum. Genet. 51: 634-640, 2006.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/16670814/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">16670814</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=16670814" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1007/s10038-006-0406-5" target="_blank">Full Text</a>]
</p>
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<a id="contributors" class="mim-anchor"></a>
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<a href="#mimCollapseContributors" role="button" data-toggle="collapse"> Contributors: </a>
</span>
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<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Cassandra L. Kniffin - updated : 9/25/2006
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<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">
Jane Kelly - updated : 3/19/2003
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<a id="creationDate" class="mim-anchor"></a>
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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">
Victor A. McKusick : 10/31/2000
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<a href="#mimCollapseEditHistory" role="button" data-toggle="collapse"> Edit History: </a>
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<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
carol : 05/10/2010
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wwang : 9/25/2006<br>ckniffin : 9/25/2006<br>alopez : 9/25/2006<br>carol : 6/2/2003<br>cwells : 3/19/2003<br>alopez : 10/31/2000
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<strong>*</strong> 300278
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<span class="mim-font">
NYCTALOPIN; NYX
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<strong><em>HGNC Approved Gene Symbol: NYX</em></strong>
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<strong>
<em>
Cytogenetic location: Xp11.4
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : X:41,447,343-41,475,652 </span>
</em>
</strong>
<span class="small">(from NCBI)</span>
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<strong>Gene-Phenotype Relationships</strong>
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Location
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Phenotype
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Phenotype <br /> MIM number
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Inheritance
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Phenotype <br /> mapping key
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<td rowspan="1">
<span class="mim-font">
Xp11.4
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<td>
<span class="mim-font">
Night blindness, congenital stationary (complete), 1A, X-linked
</span>
</td>
<td>
<span class="mim-font">
310500
</span>
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<td>
<span class="mim-font">
X-linked recessive
</span>
</td>
<td>
<span class="mim-font">
3
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<strong>TEXT</strong>
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<strong>Cloning and Expression</strong>
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<p>By positional cloning and the candidate gene approach, directed at the elucidation of the defect in complete congenital stationary night blindness (CSNB1; 310500), Bech-Hansen et al. (2000) identified a novel gene, NYX, that encodes a protein (nyctalopin) of 481 amino acids. Nyctalopin shows sequence similarity with members of the superfamily of proteins containing tandem arrays of the leucine-rich repeat (LRR) motif, as well as other features qualifying the protein as a member of the subfamily of small leucine-rich proteoglycans (SLRPs). By PCR amplification of tissue-specific cDNA, Bech-Hansen et al. (2000) detected expression of NYX in retina and kidney only. In the retina it appeared to be expressed in photoreceptors, bipolar and amacrine interneurons, and ganglion cells. </p>
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<strong>Molecular Genetics</strong>
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<span class="mim-text-font">
<p>Bech-Hansen et al. (2000) studied 22 families with X-linked complete CSNB and found 14 different mutations, including 1 founder mutation in 7 families from the United States, in the NYX gene. </p><p>Pusch et al. (2000) likewise detected 14 different mutations. In 3 families the gene was partially deleted. They found expression of the gene at low levels in retina, brain, testis, and muscle. </p>
</span>
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<h4>
<span class="mim-font">
<strong>Animal Model</strong>
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<span class="mim-text-font">
<p>Gregg et al. (2003) studied the naturally occurring mouse mutant nob (no b-wave) to determine whether it provided an animal model for the complete form of human X-linked congenital stationary night blindness. They found that the nob phenotype was caused by an 85-bp deletion in the mouse Nyx gene. Behavioral testing showed that the nob mice had a significant decrease in visual sensitivity. Thus, they concluded, the nob mouse was a model for human CSNB1. </p>
</span>
<div>
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<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>6 Selected Examples):</strong>
</span>
</h4>
<div>
<p />
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<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
NYX, 24-BP DEL
<br />
SNP: rs281865194,
ClinVar: RCV000086275, RCV001073621, RCV001847656
</span>
</div>
<div>
<span class="mim-text-font">
<p>In 7 families from the United States, Bech-Hansen et al. (2000) found that the same in-phase 24-bp deletion was associated with X-linked complete congenital stationary night blindness (310500). The deletion was predicted to result in the loss of the 8 amino acids RACPAACA from the N-terminal cysteine cluster of nyctalopin. A genotype analysis of the X chromosomes with this deletion suggested that these families share a common founder mutation. </p>
</span>
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<div>
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</div>
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<div>
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<h4>
<span class="mim-font">
<strong>.0002 &nbsp; NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
NYX, TRP350TER
<br />
SNP: rs62637037,
gnomAD: rs62637037,
ClinVar: RCV000012174, RCV000086260, RCV002247327
</span>
</div>
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<span class="mim-text-font">
<p>In 2 large pedigrees of Hispanic origin (from Costa Rica), Bech-Hansen et al. (2000) found that X-linked complete congenital stationary night blindness (310500) was associated with a trp350-to-ter (W350X) mutation in the NYX gene. This was predicted to eliminate the portion of nyctalopin required for establishing the GPI anchor, and potentially resulted in the protein being soluble rather than membrane-tethered. </p>
</span>
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<div>
<br />
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<div>
<h4>
<span class="mim-font">
<strong>.0003 &nbsp; NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
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</h4>
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<div>
<span class="mim-text-font">
NYX, CYS35TER
<br />
SNP: rs62637021,
ClinVar: RCV000012175, RCV000086261
</span>
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<div>
<span class="mim-text-font">
<p>In 4 families, Pusch et al. (2000) found that complete congenital stationary night blindness (310500) was associated with a cys35-to-ter (C35X) mutation in the NYX gene, resulting from a C-to-A transversion at nucleotide 105, changing TGC to TGA. No evidence for a founder allele was found for these families. </p>
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<br />
</div>
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<div>
<div>
<h4>
<span class="mim-font">
<strong>.0004 &nbsp; NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
NYX, ALA187LYS
<br />
SNP: rs62637027,
ClinVar: RCV000012176, RCV000086268
</span>
</div>
<div>
<span class="mim-text-font">
<p>Pusch et al. (2000) found an ala187-to-lys (A187K) mutation in the NYX gene in affected members of 3 families from Sweden with congenital stationary night blindness (310500). They were found to share a common haplotype. </p>
</span>
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<div>
<br />
</div>
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<div>
<div>
<h4>
<span class="mim-font">
<strong>.0005 &nbsp; NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
NYX, ARG94PRO
<br />
SNP: rs104894910,
ClinVar: RCV000012177
</span>
</div>
<div>
<span class="mim-text-font">
<p>In affected members of a large Chinese family with congenital stationary night blindness (310500), Xiao et al. (2006) identified a 281G-C transversion in the NYX gene, resulting in an arg94-to-pro (R94P) substitution in the second leucine-rich repeat of the protein. The mutation was not identified in 96 control individuals. </p>
</span>
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<br />
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<h4>
<span class="mim-font">
<strong>.0006 &nbsp; NIGHT BLINDNESS, CONGENITAL STATIONARY, TYPE 1A</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
NYX, ILE101THR
<br />
SNP: rs104894911,
ClinVar: RCV000012178
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a Chinese boy with congenital stationary night blindness (310500), Xiao et al. (2006) identified a 302T-C transition in the NYX gene, resulting in an ile101-to-thr (I101T) substitution in the third leucine-rich repeat of the protein. Two additional male family members were affected, although molecular analysis was not performed. The mutation was not identified in 96 control individuals. </p>
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<span class="mim-font">
<strong>REFERENCES</strong>
</span>
</h4>
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<p />
</div>
<div>
<ol>
<li>
<p class="mim-text-font">
Bech-Hansen, N. T., Naylor, M. J., Maybaum, T. A., Sparkes, R. L., Koop, B., Birch, D. G., Bergen, A. A. B., Prinsen, C. F. M., Polomeno, R. C., Gal, A., Drack, A. V., Musarella, M. A., Jacobson, S. G., Young, R. S. L., Weleber, R. G.
<strong>Mutations in NYX, encoding the leucine-rich proteoglycan nyctalopin, cause X-linked complete congenital stationary night blindness.</strong>
Nature Genet. 26: 319-323, 2000.
[PubMed: 11062471]
[Full Text: https://doi.org/10.1038/81619]
</p>
</li>
<li>
<p class="mim-text-font">
Gregg, R. G., Mukhopadhyay, S., Candille, S. I., Ball., S. L., Pardue, M. T., McCall, M. A., Peachey, N. S.
<strong>Identification of the gene and the mutation responsible for the mouse nob phenotype.</strong>
Invest. Ophthal. Vis. Sci. 44: 378-384, 2003.
[PubMed: 12506099]
[Full Text: https://doi.org/10.1167/iovs.02-0501]
</p>
</li>
<li>
<p class="mim-text-font">
Pusch, C. M., Zeitz, C., Brandau, O., Pesch, K., Achatz, H., Feil, S., Scharfe, C., Maurer, J., Jacobi, F. K., Pinckers, A., Andreasson, S., Hardcastle, A., Wissinger, B., Berger, W., Meindl, A.
<strong>The complete form of X-linked congenital stationary night blindness is caused by mutations in a gene encoding a leucine-rich repeat protein.</strong>
Nature Genet. 26: 324-327, 2000.
[PubMed: 11062472]
[Full Text: https://doi.org/10.1038/81627]
</p>
</li>
<li>
<p class="mim-text-font">
Xiao, X., Jia, X., Guo, X., Li, S., Yang, Z., Zhang, Q.
<strong>CSNB1 in Chinese families associated with novel mutations in NYX.</strong>
J. Hum. Genet. 51: 634-640, 2006.
[PubMed: 16670814]
[Full Text: https://doi.org/10.1007/s10038-006-0406-5]
</p>
</li>
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Cassandra L. Kniffin - updated : 9/25/2006<br>Jane Kelly - updated : 3/19/2003
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carol : 05/10/2010<br>wwang : 9/25/2006<br>ckniffin : 9/25/2006<br>alopez : 9/25/2006<br>carol : 6/2/2003<br>cwells : 3/19/2003<br>alopez : 10/31/2000
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