nih-gov/www.ncbi.nlm.nih.gov/omim/604521

3184 lines
216 KiB
Text

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-us" xml:lang="en-us" >
<head>
<!--
################################# CRAWLER WARNING #################################
- The terms of service and the robots.txt file disallows crawling of this site,
please see https://omim.org/help/agreement for more information.
- A number of data files are available for download at https://omim.org/downloads.
- We have an API which you can learn about at https://omim.org/help/api and register
for at https://omim.org/api, this provides access to the data in JSON & XML formats.
- You should feel free to contact us at https://omim.org/contact to figure out the best
approach to getting the data you need for your work.
- WE WILL AUTOMATICALLY BLOCK YOUR IP ADDRESS IF YOU CRAWL THIS SITE.
- WE WILL ALSO AUTOMATICALLY BLOCK SUB-DOMAINS AND ADDRESS RANGES IMPLICATED IN
DISTRIBUTED CRAWLS OF THIS SITE.
################################# CRAWLER WARNING #################################
-->
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="pragma" content="no-cache" />
<meta name="robots" content="index, follow" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="title" content="Online Mendelian Inheritance in Man (OMIM)" />
<meta name="description" content="Online Mendelian Inheritance in Man (OMIM) is a comprehensive, authoritative
compendium of human genes and genetic phenotypes that is freely available and updated daily. The full-text,
referenced overviews in OMIM contain information on all known mendelian disorders and over 15,000 genes.
OMIM focuses on the relationship between phenotype and genotype. It is updated daily, and the entries
contain copious links to other genetics resources." />
<meta name="keywords" content="Mendelian Inheritance in Man, OMIM, Mendelian diseases, Mendelian disorders, genetic diseases,
genetic disorders, genetic disorders in humans, genetic phenotypes, phenotype and genotype, disease models, alleles,
genes, dna, genetics, dna testing, gene testing, clinical synopsis, medical genetics" />
<meta name="theme-color" content="#333333" />
<link rel="icon" href="/static/omim/favicon.png" />
<link rel="apple-touch-icon" href="/static/omim/favicon.png" />
<link rel="manifest" href="/static/omim/manifest.json" />
<script id='mimBrowserCapability'>
function _0x5069(){const _0x4b1387=['91sZIeLc','mimBrowserCapability','15627zshTnf','710004yxXedd','34LxqNYj','match','disconnect','1755955rnzTod','observe','1206216ZRfBWB','575728fqgsYy','webdriver','documentElement','close','open','3086704utbakv','7984143PpiTpt'];_0x5069=function(){return _0x4b1387;};return _0x5069();}function _0xe429(_0x472ead,_0x43eb70){const _0x506916=_0x5069();return _0xe429=function(_0xe42949,_0x1aaefc){_0xe42949=_0xe42949-0x1a9;let _0xe6add8=_0x506916[_0xe42949];return _0xe6add8;},_0xe429(_0x472ead,_0x43eb70);}(function(_0x337daa,_0x401915){const _0x293f03=_0xe429,_0x5811dd=_0x337daa();while(!![]){try{const _0x3dc3a3=parseInt(_0x293f03(0x1b4))/0x1*(-parseInt(_0x293f03(0x1b6))/0x2)+parseInt(_0x293f03(0x1b5))/0x3+parseInt(_0x293f03(0x1b0))/0x4+-parseInt(_0x293f03(0x1b9))/0x5+parseInt(_0x293f03(0x1aa))/0x6+-parseInt(_0x293f03(0x1b2))/0x7*(parseInt(_0x293f03(0x1ab))/0x8)+parseInt(_0x293f03(0x1b1))/0x9;if(_0x3dc3a3===_0x401915)break;else _0x5811dd['push'](_0x5811dd['shift']());}catch(_0x4dd27b){_0x5811dd['push'](_0x5811dd['shift']());}}}(_0x5069,0x84d63),(function(){const _0x9e4c5f=_0xe429,_0x363a26=new MutationObserver(function(){const _0x458b09=_0xe429;if(document!==null){let _0x2f0621=![];navigator[_0x458b09(0x1ac)]!==![]&&(_0x2f0621=!![]);for(const _0x427dda in window){_0x427dda[_0x458b09(0x1b7)](/cdc_[a-z0-9]/ig)&&(_0x2f0621=!![]);}_0x2f0621===!![]?document[_0x458b09(0x1af)]()[_0x458b09(0x1ae)]():(_0x363a26[_0x458b09(0x1b8)](),document['getElementById'](_0x458b09(0x1b3))['remove']());}});_0x363a26[_0x9e4c5f(0x1a9)](document[_0x9e4c5f(0x1ad)],{'childList':!![]});}()));
</script>
<link rel='preconnect' href='https://cdn.jsdelivr.net' />
<link rel='preconnect' href='https://cdnjs.cloudflare.com' />
<link rel="preconnect" href="https://www.googletagmanager.com" />
<script src="https://cdn.jsdelivr.net/npm/jquery@3.7.1/dist/jquery.min.js" integrity="sha256-/JqT3SQfawRcv/BIHPThkBvs0OEvtFFmqPF/lYI/Cxo=" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/jquery-migrate@3.5.2/dist/jquery-migrate.js" integrity="sha256-ThFcNr/v1xKVt5cmolJIauUHvtXFOwwqiTP7IbgP8EU=" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@3.4.1/dist/js/bootstrap.min.js" integrity="sha256-nuL8/2cJ5NDSSwnKD8VqreErSWHtnEP9E7AySL+1ev4=" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.4.1/dist/css/bootstrap.min.css" integrity="sha256-bZLfwXAP04zRMK2BjiO8iu9pf4FbLqX6zitd+tIvLhE=" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.4.1/dist/css/bootstrap-theme.min.css" integrity="sha256-8uHMIn1ru0GS5KO+zf7Zccf8Uw12IA5DrdEcmMuWLFM=" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/moment@2.29.4/min/moment.min.js" integrity="sha256-80OqMZoXo/w3LuatWvSCub9qKYyyJlK0qnUCYEghBx8=" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/eonasdan-bootstrap-datetimepicker@4.17.49/build/js/bootstrap-datetimepicker.min.js" integrity="sha256-dYxUtecag9x4IaB2vUNM34sEso6rWTgEche5J6ahwEQ=" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/eonasdan-bootstrap-datetimepicker@4.17.49/build/css/bootstrap-datetimepicker.min.css" integrity="sha256-9FNpuXEYWYfrusiXLO73oIURKAOVzqzkn69cVqgKMRY=" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/qtip2@3.0.3/dist/jquery.qtip.min.js" integrity="sha256-a+PRq3NbyK3G08Boio9X6+yFiHpTSIrbE7uzZvqmDac=" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/qtip2@3.0.3/dist/jquery.qtip.min.css" integrity="sha256-JvdVmxv7Q0LsN1EJo2zc1rACwzatOzkyx11YI4aP9PY=" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/devbridge-autocomplete@1.4.11/dist/jquery.autocomplete.min.js" integrity="sha256-BNpu3uLkB3SwY3a2H3Ue7WU69QFdSRlJVBrDTnVKjiA=" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/jquery-validation@1.21.0/dist/jquery.validate.min.js" integrity="sha256-umbTaFxP31Fv6O1itpLS/3+v5fOAWDLOUzlmvOGaKV4=" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/js-cookie@3.0.5/dist/js.cookie.min.js" integrity="sha256-WCzAhd2P6gRJF9Hv3oOOd+hFJi/QJbv+Azn4CGB8gfY=" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ScrollToFixed/1.0.8/jquery-scrolltofixed-min.js" integrity="sha512-ohXbv1eFvjIHMXG/jY057oHdBZ/jhthP1U3jES/nYyFdc9g6xBpjDjKIacGoPG6hY//xVQeqpWx8tNjexXWdqA==" crossorigin="anonymous"></script>
<script async src="https://www.googletagmanager.com/gtag/js?id=G-HMPSQC23JJ"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){window.dataLayer.push(arguments);}
gtag("js", new Date());
gtag("config", "G-HMPSQC23JJ");
</script>
<script src="/static/omim/js/site.js?version=Zmk5Y1" integrity="sha256-fi9cXywxCO5p0mU1OSWcMp0DTQB4s8ncFR8j+IO840s="></script>
<link rel="stylesheet" href="/static/omim/css/site.css?version=VGE4MF" integrity="sha256-Ta80Qpm3w1S8kmnN0ornbsZxdfA32R42R4ncsbos0YU=" />
<script src="/static/omim/js/entry/entry.js?version=anMvRU" integrity="sha256-js/EBOBZzGDctUqr1VhnNPzEiA7w3HM5JbFmOj2CW84="></script>
<div id="mimBootstrapDeviceSize">
<div class="visible-xs" data-mim-bootstrap-device-size="xs"></div>
<div class="visible-sm" data-mim-bootstrap-device-size="sm"></div>
<div class="visible-md" data-mim-bootstrap-device-size="md"></div>
<div class="visible-lg" data-mim-bootstrap-device-size="lg"></div>
</div>
<title>
Entry
- *604521 - 3-HYDROXYANTHRANILATE 3,4-DIOXYGENASE; HAAO
- OMIM
</title>
</head>
<body>
<div id="mimBody">
<div id="mimHeader" class="hidden-print">
<nav class="navbar navbar-inverse navbar-fixed-top mim-navbar-background">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#mimNavbarCollapse" aria-expanded="false">
<span class="sr-only"> Toggle navigation </span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="/"><img alt="OMIM" src="/static/omim/icons/OMIM_davinciman.001.png" height="30" width="30"></a>
</div>
<div id="mimNavbarCollapse" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li>
<a href="/help/about"><span class="mim-navbar-menu-font"> About </span></a>
</li>
<li class="dropdown">
<a href="#" id="mimStatisticsDropdown" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><span class="mim-navbar-menu-font"> Statistics <span class="caret"></span></span></a>
<ul class="dropdown-menu" role="menu" aria-labelledby="statisticsDropdown">
<li>
<a href="/statistics/update"> Update List </a>
</li>
<li>
<a href="/statistics/entry"> Entry Statistics </a>
</li>
<li>
<a href="/statistics/geneMap"> Phenotype-Gene Statistics </a>
</li>
<li>
<a href="/statistics/paceGraph"> Pace of Gene Discovery Graph </a>
</li>
</ul>
</li>
<li class="dropdown">
<a href="#" id="mimDownloadsDropdown" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><span class="mim-navbar-menu-font"> Downloads <span class="caret"></span></span></a>
<ul class="dropdown-menu" role="menu" aria-labelledby="downloadsDropdown">
<li>
<a href="/downloads/"> Register for Downloads </a>
</li>
<li>
<a href="/api"> Register for API Access </a>
</li>
</ul>
</li>
<li>
<a href="/contact?mimNumber=604521"><span class="mim-navbar-menu-font"> Contact Us </span></a>
</li>
<li>
<a href="/mimmatch/">
<span class="mim-navbar-menu-font">
<span class="mim-tip-bottom" qtip_title="<strong>MIMmatch</strong>" qtip_text="MIMmatch is a way to follow OMIM entries that interest you and to find other researchers who may share interest in the same entries. <br /><br />A bonus to all MIMmatch users is the option to sign up for updates on new gene-phenotype relationships.">
MIMmatch
</span>
</span>
</a>
</li>
<li class="dropdown">
<a href="#" id="mimDonateDropdown" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><span class="mim-navbar-menu-font"> Donate <span class="caret"></span></span></a>
<ul class="dropdown-menu" role="menu" aria-labelledby="donateDropdown">
<li>
<a href="https://secure.jhu.edu/form/OMIM" target="_blank" onclick="gtag('event', 'mim_donation', {'destination': 'secure.jhu.edu'})"> Donate! </a>
</li>
<li>
<a href="/donors"> Donors </a>
</li>
</ul>
</li>
<li class="dropdown">
<a href="#" id="mimHelpDropdown" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><span class="mim-navbar-menu-font"> Help <span class="caret"></span></span></a>
<ul class="dropdown-menu" role="menu" aria-labelledby="helpDropdown">
<li>
<a href="/help/faq"> Frequently Asked Questions (FAQs) </a>
</li>
<li role="separator" class="divider"></li>
<li>
<a href="/help/search"> Search Help </a>
</li>
<li>
<a href="/help/linking"> Linking Help </a>
</li>
<li>
<a href="/help/api"> API Help </a>
</li>
<li role="separator" class="divider"></li>
<li>
<a href="/help/external"> External Links </a>
</li>
<li role="separator" class="divider"></li>
<li>
<a href="/help/agreement"> Use Agreement </a>
</li>
<li>
<a href="/help/copyright"> Copyright </a>
</li>
</ul>
</li>
<li>
<a href="#" id="mimShowTips" class="mim-tip-hint" title="Click to reveal all tips on the page. You can also hover over individual elements to reveal the tip."><span class="mim-navbar-menu-font"><span class="glyphicon glyphicon-question-sign" aria-hidden="true"></span></span></a>
</li>
</ul>
</div>
</div>
</nav>
</div>
<div id="mimSearch" class="hidden-print">
<div class="container">
<form method="get" action="/search" id="mimEntrySearchForm" name="entrySearchForm" class="form-horizontal">
<input type="hidden" id="mimSearchIndex" name="index" value="entry" />
<input type="hidden" id="mimSearchStart" name="start" value="1" />
<input type="hidden" id="mimSearchLimit" name="limit" value="10" />
<input type="hidden" id="mimSearchSort" name="sort" value="score desc, prefix_sort desc" />
<div class="row">
<div class="col-lg-8 col-md-8 col-sm-8 col-xs-8">
<div class="form-group">
<div class="input-group">
<input type="search" id="mimEntrySearch" name="search" class="form-control" value="" placeholder="Search OMIM..." maxlength="5000" autocomplete="off" autocorrect="off" autocapitalize="none" spellcheck="false" autofocus />
<div class="input-group-btn">
<button type="submit" id="mimEntrySearchSubmit" class="btn btn-default" style="width: 5em;"><span class="glyphicon glyphicon-search"></span></button>
<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown"> Options <span class="caret"></span></button>
<ul class="dropdown-menu dropdown-menu-right">
<li class="dropdown-header">
Advanced Search
</li>
<li style="margin-left: 0.5em;">
<a href="/search/advanced/entry"> OMIM </a>
</li>
<li style="margin-left: 0.5em;">
<a href="/search/advanced/clinicalSynopsis"> Clinical Synopses </a>
</li>
<li style="margin-left: 0.5em;">
<a href="/search/advanced/geneMap"> Gene Map </a>
</li>
<li role="separator" class="divider"></li>
<li>
<a href="/history"> Search History </a>
</li>
</ul>
</div>
</div>
<div class="autocomplete" id="mimEntrySearchAutocomplete"></div>
</div>
</div>
<div class="col-lg-4 col-md-4 col-sm-4 col-xs-4">
<span class="small">
</span>
</div>
</div>
</form>
<div class="row">
<p />
</div>
</div>
</div>
<!-- <div id="mimSearch"> -->
<div id="mimContent">
<div class="container hidden-print">
<div class="row">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<div id="mimAlertBanner">
</div>
</div>
</div>
<div class="row">
<div class="col-lg-2 col-md-2 col-sm-2 hidden-sm hidden-xs">
<div id="mimFloatingTocMenu" class="small" role="navigation">
<p>
<span class="h4">*604521</span>
<br />
<strong>Table of Contents</strong>
</p>
<nav>
<ul id="mimFloatingTocMenuItems" class="nav nav-pills nav-stacked mim-floating-toc-padding">
<li role="presentation">
<a href="#title"><strong>Title</strong></a>
</li>
<li role="presentation">
<a href="#geneMap"><strong>Gene-Phenotype Relationships</strong></a>
</li>
<li role="presentation">
<a href="#text"><strong>Text</strong></a>
</li>
<li role="presentation" style="margin-left: 1em">
<a href="#description">Description</a>
</li>
<li role="presentation" style="margin-left: 1em">
<a href="#cloning">Cloning and Expression</a>
</li>
<li role="presentation" style="margin-left: 1em">
<a href="#mapping">Mapping</a>
</li>
<li role="presentation" style="margin-left: 1em">
<a href="#molecularGenetics">Molecular Genetics</a>
</li>
<li role="presentation" style="margin-left: 1em">
<a href="#animalModel">Animal Model</a>
</li>
<li role="presentation">
<a href="#allelicVariants"><strong>Allelic Variants</strong></a>
</li>
<li role="presentation" style="margin-left: 1em">
<a href="/allelicVariants/604521">Table View</a>
</li>
<li role="presentation">
<a href="#references"><strong>References</strong></a>
</li>
<li role="presentation">
<a href="#contributors"><strong>Contributors</strong></a>
</li>
<li role="presentation">
<a href="#creationDate"><strong>Creation Date</strong></a>
</li>
<li role="presentation">
<a href="#editHistory"><strong>Edit History</strong></a>
</li>
</ul>
</nav>
</div>
</div>
<div class="col-lg-2 col-lg-push-8 col-md-2 col-md-push-8 col-sm-2 col-sm-push-8 col-xs-12">
<div id="mimFloatingLinksMenu">
<div class="panel panel-primary" style="margin-bottom: 0px; border-radius: 4px 4px 0px 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimExternalLinks">
<h4 class="panel-title">
<a href="#mimExternalLinksFold" id="mimExternalLinksToggle" class="mimTriangleToggle" role="button" data-toggle="collapse">
<div style="display: table-row">
<div id="mimExternalLinksToggleTriangle" class="small" style="color: white; display: table-cell;">&#9660;</div>
&nbsp;
<div style="display: table-cell;">External Links</div>
</div>
</a>
</h4>
</div>
</div>
<div id="mimExternalLinksFold" class="collapse in">
<div class="panel-group" id="mimExternalLinksAccordion" role="tablist" aria-multiselectable="true">
<div class="panel panel-default" style="margin-top: 0px; border-radius: 0px">
<div class="panel-heading mim-panel-heading" role="tab" id="mimGenome">
<span class="panel-title">
<span class="small">
<a href="#mimGenomeLinksFold" id="mimGenomeLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<span id="mimGenomeLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9658;</span> Genome
</a>
</span>
</span>
</div>
<div id="mimGenomeLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel" aria-labelledby="genome">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.ensembl.org/Homo_sapiens/Location/View?db=core;g=ENSG00000162882;t=ENST00000294973" class="mim-tip-hint" title="Genome databases for vertebrates and other eukaryotic species." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Ensembl', 'domain': 'ensembl.org'})">Ensembl</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/genome/gdv/browser/gene/?id=23498" class="mim-tip-hint" title="Detailed views of the complete genomes of selected organisms from vertebrates to protozoa." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NCBI Genome Viewer', 'domain': 'ncbi.nlm.nih.gov'})">NCBI Genome Viewer</a></div>
<div><a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&hgFind=omimGeneAcc&position=604521" 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'})">UCSC Genome Browser</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="mimDna">
<span class="panel-title">
<span class="small">
<a href="#mimDnaLinksFold" id="mimDnaLinksToggle" class="collapsed mimSingletonTriangleToggle" role="button" data-toggle="collapse" data-parent="#mimExternalLinksAccordion">
<span id="mimDnaLinksToggleTriangle" class="small mimSingletonTriangle" style="color: #337CB5">&#9658;</span> DNA
</a>
</span>
</span>
</div>
<div id="mimDnaLinksFold" class="panel-collapse collapse mimLinksFold" role="tabpanel">
<div class="panel-body small mim-panel-body">
<div><a href="https://www.ensembl.org/Homo_sapiens/Transcript/Sequence_cDNA?db=core;g=ENSG00000162882;t=ENST00000294973" class="mim-tip-hint" title="Transcript-based views for coding and noncoding DNA." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'Ensembl', 'domain': 'ensembl.org'})">Ensembl (MANE Select)</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/nuccore/NM_012205,XM_011532729,XM_011532730" class="mim-tip-hint" title="A collection of genome, gene, and transcript sequence data from several sources, including GenBank, RefSeq." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NCBI RefSeq', 'domain': 'ncbi.nlm.nih'})">NCBI RefSeq</a></div>
<div><a href="https://www.ncbi.nlm.nih.gov/nuccore/NM_012205" class="mim-tip-hint" title="A collection of genome, gene, and transcript sequence data from several sources, including GenBank, RefSeq." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'NCBI RefSeq (MANE)', 'domain': 'ncbi.nlm.nih'})">NCBI RefSeq (MANE Select)</a></div>
<div><a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&hgFind=omimGeneAcc&position=604521" 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'})">UCSC Genome Browser</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="mimProtein">
<span class="panel-title">
<span class="small">
<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=05158&isoform_id=05158_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/HAAO" 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/443919,20810280,48146243,62822152,119620714,119620715,119620716,188497625,194380782,308153402,767914242,767914244,2462571505,2462571507" 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/P46952" 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=23498" 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=ENSG00000162882;t=ENST00000294973" 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=HAAO" 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=HAAO" 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+23498" 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/HAAO" 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:23498" 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/23498" 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=ENST00000294973.11&hgg_start=42767089&hgg_end=42792583&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/genes/HGNC:4796" 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://www.ncbi.nlm.nih.gov/gtr/all/tests/?term=604521[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=604521[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://gnomad.broadinstitute.org/gene/ENSG00000162882" 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=HAAO" 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=HAAO" 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=HAAO" 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=HAAO&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/PA29171" 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:4796" 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:1349444" 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/HAAO#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:1349444" 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/23498/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=23498" 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=WBGene00010595;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-041114-89" 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://www.genome.jp/dbget-bin/get_linkdb?-t+pathway+hsa:23498" 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>
<div><a href="https://reactome.org/content/query?q=HAAO&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>
604521
</span>
</span>
</div>
</div>
<div>
<a id="preferredTitle" class="mim-anchor"></a>
<h3>
<span class="mim-font">
3-HYDROXYANTHRANILATE 3,4-DIOXYGENASE; HAAO
</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">
3-HYDROXYANTHRANILIC ACID DIOXYGENASE<br />
3-HAO
</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=HAAO" class="mim-tip-hint" title="HUGO Gene Nomenclature Committee." target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'HGNC', 'domain': 'genenames.org'})">HAAO</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/2/213?start=-3&limit=10&highlight=213">2p21</a>
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : <a href="https://genome.ucsc.edu/cgi-bin/hgTracks?db=hg38&position=chr2:42767089-42792583&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'})">2:42,767,089-42,792,583</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/2/213?start=-3&limit=10&highlight=213">
2p21
</a>
</span>
</td>
<td>
<span class="mim-font">
Vertebral, cardiac, renal, and limb defects syndrome 1
</span>
</td>
<td>
<span class="mim-font">
<a href="/entry/617660"> 617660 </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/604521" target="_blank" onclick="gtag('event', 'mim_graph', {'destination': 'Linear'})"> Linear </a></li>
<li><a href="/graph/radial/604521" 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="description" class="mim-anchor"></a>
<h4 href="#mimDescriptionFold" id="mimDescriptionToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimDescriptionToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Description</strong>
</span>
</h4>
</div>
<div id="mimDescriptionFold" class="collapse in ">
<span class="mim-text-font">
<p>3-Hydroxyanthranilate 3,4-dioxygenase (HAAO; <a href="https://enzyme.expasy.org/EC/1.13.11.6" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'EC\', \'domain\': \'expasy.org\'})">EC 1.13.11.6</a>) is a monomeric cytosolic protein belonging to the family of intramolecular dioxygenases containing nonheme ferrous iron. It is widely distributed in peripheral organs, such as liver and kidney, and is also present in low amounts in the central nervous system (<a href="#1" class="mim-tip-reference" title="Foster, A. C., White, R. J., Schwarcz, R. &lt;strong&gt;Synthesis of quinolinic acid by 3-hydroxyanthranilic acid oxygenase in rat brain tissue in vitro.&lt;/strong&gt; J. Neurochem. 47: 23-30, 1986.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/2940338/&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;2940338&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1111/j.1471-4159.1986.tb02826.x&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="2940338">Foster et al., 1986</a>). Within rat brain, Haao appears to be mainly located in glial cells (<a href="#3" class="mim-tip-reference" title="Kohler, C., Eriksson, L. G., Okuno, E., Schwarcz, R. &lt;strong&gt;Localization of quinolinic acid metabolizing enzymes in the rat brain. Immunohistochemical studies using antibodies to 3-hydroxyanthranilic acid oxygenase and quinolinic acid phosphoribosyltransferase.&lt;/strong&gt; Neuroscience 27: 49-76, 1988.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/2974127/&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;2974127&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1016/0306-4522(88)90219-9&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;destination&#x27;: &#x27;Publisher&#x27;})&quot;&gt;Full Text&lt;/a&gt;]" pmid="2974127">Kohler et al., 1988</a>). HAAO catalyzes the synthesis of quinolinic acid (QUIN) from 3-hydroxyanthranilic acid (3HAA). QUIN is an excitotoxin whose toxicity is mediated by its ability to activate glutamate N-methyl-D-aspartate receptors (see <a href="/entry/602717">602717</a>). Increased cerebral levels of QUIN may participate in the pathogenesis of neurologic and inflammatory disorders. HAAO has been suggested to play a role in disorders associated with altered tissue levels of QUIN (summary by <a href="#4" class="mim-tip-reference" title="Malherbe, P., Kohler, C., Da Prada, M., Lang, G., Kiefer, V., Schwarcz, R., Lahm, H.-W., Cesura, A. M. &lt;strong&gt;Molecular cloning and functional expression of human 3-hydroxyanthranilic-acid dioxygenase.&lt;/strong&gt; J. Biol. Chem. 269: 13792-13797, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7514594/&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;7514594&lt;/a&gt;]" pmid="7514594">Malherbe et al., 1994</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?term=7514594+2940338+2974127" 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>HAAO is also involved in the de novo NAD(H) synthesis pathway, using niacin from dietary input (summary by <a href="#5" class="mim-tip-reference" title="Shi, H., Enriquez, A., Rapadas, M., Martin, E. M. M. A., Wang, R., Moreau, J., Lim, C. K., Szot, J. O., Ip, E., Hughes, J. N., Sugimoto, K., Humphreys, D. T., and 21 others. &lt;strong&gt;NAD deficiency, congenital malformations, and niacin supplementation.&lt;/strong&gt; New Eng. J. Med. 377: 544-552, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28792876/&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;28792876&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1616361&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="28792876">Shi et al., 2017</a>). <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28792876" 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>
<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 screening a human hepatoma cell line (HepG2) cDNA library with a rat Haao cDNA, <a href="#4" class="mim-tip-reference" title="Malherbe, P., Kohler, C., Da Prada, M., Lang, G., Kiefer, V., Schwarcz, R., Lahm, H.-W., Cesura, A. M. &lt;strong&gt;Molecular cloning and functional expression of human 3-hydroxyanthranilic-acid dioxygenase.&lt;/strong&gt; J. Biol. Chem. 269: 13792-13797, 1994.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/7514594/&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;7514594&lt;/a&gt;]" pmid="7514594">Malherbe et al. (1994)</a> isolated a full-length human HAAO cDNA. The deduced 286-amino acid HAAO protein has a calculated molecular mass of approximately 32.6 kD. Immunoblot analysis of recombinant HAAO expressed in human embryonic kidney fibroblast cells detected a polypeptide with an apparent molecular mass of 32 kD. Northern blot analysis of human liver and HepG2 cells showed that HAAO is expressed as an approximately 1.3-kb transcript. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7514594" 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>
<a id="mapping" class="mim-anchor"></a>
<h4 href="#mimMappingFold" id="mimMappingToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimMappingToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
</div>
<div id="mimMappingFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p><a href="#2" class="mim-tip-reference" title="Gross, M. B. &lt;strong&gt;Personal Communication.&lt;/strong&gt; Baltimore, Md. 3/24/2014."None>Gross (2014)</a> mapped the HAAO gene to chromosome 2p21 based on an alignment of the HAAO sequence (GenBank <a href="https://www.ncbi.nlm.nih.gov/search/all/?term=BC029510" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'GENBANK\', \'domain\': \'ncbi.nlm.nih.gov\'})">BC029510</a>) with the genomic sequence (GRCh37).</p>
</span>
<div>
<br />
</div>
</div>
<div>
<a id="molecularGenetics" class="mim-anchor"></a>
<h4 href="#mimMolecularGeneticsFold" id="mimMolecularGeneticsToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimMolecularGeneticsToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<div id="mimMolecularGeneticsFold" class="collapse in mimTextToggleFold">
<span class="mim-text-font">
<p>In 2 unrelated patients, each born of consanguineous parents, with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; <a href="/entry/617660">617660</a>), <a href="#5" class="mim-tip-reference" title="Shi, H., Enriquez, A., Rapadas, M., Martin, E. M. M. A., Wang, R., Moreau, J., Lim, C. K., Szot, J. O., Ip, E., Hughes, J. N., Sugimoto, K., Humphreys, D. T., and 21 others. &lt;strong&gt;NAD deficiency, congenital malformations, and niacin supplementation.&lt;/strong&gt; New Eng. J. Med. 377: 544-552, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28792876/&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;28792876&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1616361&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="28792876">Shi et al. (2017)</a> identified homozygous truncating mutations in the HAAO gene (<a href="#0001">604521.0001</a> and <a href="#0002">604521.0002</a>). The mutations, which were found by whole-exome or whole-genome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the families. In vitro functional expression studies showed that both mutations essentially abolished HAAO enzymatic activity. Analysis of patient plasma showed increased levels of the upstream metabolite 3HAA and decreased levels of the downstream metabolites NAD and NAH(H). Both patients belonged to a pair of dizygotic twins; their twins were unaffected and heterozygous for the mutation. Studies in mice, which have different niacin levels compared to humans, indicated that the congenital malformations found in humans resulted from deficient NAD levels rather than increased 3HAA. <a href="#5" class="mim-tip-reference" title="Shi, H., Enriquez, A., Rapadas, M., Martin, E. M. M. A., Wang, R., Moreau, J., Lim, C. K., Szot, J. O., Ip, E., Hughes, J. N., Sugimoto, K., Humphreys, D. T., and 21 others. &lt;strong&gt;NAD deficiency, congenital malformations, and niacin supplementation.&lt;/strong&gt; New Eng. J. Med. 377: 544-552, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28792876/&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;28792876&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1616361&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="28792876">Shi et al. (2017)</a> noted that NAD is a cofactor with broad cellular effects, including ATP production, macromolecular biosynthesis, redox reactions, energy metabolism, DNA repair, and modulation of transcription factors, all of which play an important role in embryogenesis. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28792876" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})"><span class="glyphicon glyphicon-plus-sign mim-tip-hint" title="Click this 'reference-plus' icon to see articles related to this paragraph in PubMed."></span></a></p><p>In 3 unrelated patients with VCRL1, <a href="#6" class="mim-tip-reference" title="Szot, J. O., Slavotinek, A., Chong, K., Brandau, O., Nezarati, M., Cueto-Gonzalez, A. M., Patel, M. S., Devine, W. P., Rego, S., Acyinena, A. P., Shannon, P., Myles-Reid, D., and 17 others. &lt;strong&gt;New cases that expand the genotypic and phenotypic spectrum of congenital NAD deficiency disorder.&lt;/strong&gt; Hum. Mutat. 42: 862-876, 2021.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/33942433/&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;33942433&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=33942433[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.24211&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="33942433">Szot et al. (2021)</a> identified compound heterozygous or homozygous mutations in the HAAO gene (<a href="#0003">604521.0003</a>-<a href="#0007">604521.0007</a>). Yeast with a homozygous knockout for bna1, the ortholog of human HAAO, were transformed with plasmids containing HAAO with each mutation or with wildtype HAAO. Each mutant HAAO resulted in smaller yeast mass compared to wildtype when grown in niacin-free culture media. NAD levels were also reduced in yeast transformed with the mutant HAAO plasmids compared to wildtype. <a href="#6" class="mim-tip-reference" title="Szot, J. O., Slavotinek, A., Chong, K., Brandau, O., Nezarati, M., Cueto-Gonzalez, A. M., Patel, M. S., Devine, W. P., Rego, S., Acyinena, A. P., Shannon, P., Myles-Reid, D., and 17 others. &lt;strong&gt;New cases that expand the genotypic and phenotypic spectrum of congenital NAD deficiency disorder.&lt;/strong&gt; Hum. Mutat. 42: 862-876, 2021.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/33942433/&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;33942433&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=33942433[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.24211&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="33942433">Szot et al. (2021)</a> concluded that the compromised growth of the bna1 knockout yeast transfected with each mutant HAAO was a result of abnormal HAAO enzyme activity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=33942433" 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>
<a id="animalModel" class="mim-anchor"></a>
<h4 href="#mimAnimalModelFold" id="mimAnimalModelToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<span id="mimAnimalModelToggleTriangle" class="small mimTextToggleTriangle">&#9660;</span>
<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="#5" class="mim-tip-reference" title="Shi, H., Enriquez, A., Rapadas, M., Martin, E. M. M. A., Wang, R., Moreau, J., Lim, C. K., Szot, J. O., Ip, E., Hughes, J. N., Sugimoto, K., Humphreys, D. T., and 21 others. &lt;strong&gt;NAD deficiency, congenital malformations, and niacin supplementation.&lt;/strong&gt; New Eng. J. Med. 377: 544-552, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28792876/&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;28792876&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1616361&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="28792876">Shi et al. (2017)</a> found that Haao-null mice were viable and normal. Plasma analysis showed increased 3HAA levels, but normal NAD levels. The authors noted that mice have increased niacin levels compared to humans and that mouse embryos may receive niacin from their mothers, resulting in a buffering effect on genetic-based NAD deficiency. These findings suggested that the congenital malformations found in humans with increased levels of 3HAA but decreased levels of NAD, resulted from the deficient NAD levels. Indeed, further studies in mutant mice born to mothers on a niacin-free diet showed that NAD deficiency due to lack of Haao resulted in multiple defects, including defects in vertebral segmentation, heart defects, small kidney, cleft palate, talipes, syndactyly, and caudal agenesis. Supplementation of Haao-null mouse embryos with niacin during gestation restored NAD levels and prevented the disruption of embryogenesis. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28792876" 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>7 Selected Examples</a>):</strong>
</span>
</h4>
<div>
<p />
</div>
<div id="mimAllelicVariantsFold" class="collapse in mimTextToggleFold">
<div>
<a href="/allelicVariants/604521" class="btn btn-default" role="button"> Table View </a>
&nbsp;&nbsp;<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=604521[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;VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
HAAO, ASP162TER (<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=SCV000540919" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ClinVar\', \'domain\': \'ncbi.nlm.nih.gov\'})">SCV000540919</a>)
</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> rs527656756 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs527656756;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/rs527656756?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=rs527656756" 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=rs527656756" 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=RCV000496188 OR RCV000505810" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000496188, RCV000505810" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000496188...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a boy, born of consanguineous Iraqi parents (family A), with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; <a href="/entry/617660">617660</a>), <a href="#5" class="mim-tip-reference" title="Shi, H., Enriquez, A., Rapadas, M., Martin, E. M. M. A., Wang, R., Moreau, J., Lim, C. K., Szot, J. O., Ip, E., Hughes, J. N., Sugimoto, K., Humphreys, D. T., and 21 others. &lt;strong&gt;NAD deficiency, congenital malformations, and niacin supplementation.&lt;/strong&gt; New Eng. J. Med. 377: 544-552, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28792876/&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;28792876&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1616361&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="28792876">Shi et al. (2017)</a> identified a homozygous 1-bp duplication (c.483dupT) in exon 6 of the HAAO gene, resulting in a frameshift and premature termination (Asp162Ter). The mutation, which was found by whole-exome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the family. The variant was filtered against the ExAC database and was classified as pathogenic based on the American College of Medical Genetics guidelines. In vitro functional expression studies showed that the mutation essentially abolished HAAO enzymatic activity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28792876" 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;VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
HAAO, TRP186TER (<a href="https://www.ncbi.nlm.nih.gov/clinvar?term=SCV000540920" target="_blank" onclick="gtag(\'event\', \'mim_outbound\', {\'name\': \'ClinVar\', \'domain\': \'ncbi.nlm.nih.gov\'})">SCV000540920</a>)
</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> rs1135401743 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1135401743;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/rs1135401743?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=rs1135401743" 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=rs1135401743" 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=RCV000496104 OR RCV000505813" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV000496104, RCV000505813" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV000496104...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a girl, born of consanguineous Lebanese parents (family B), with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; <a href="/entry/617660">617660</a>), <a href="#5" class="mim-tip-reference" title="Shi, H., Enriquez, A., Rapadas, M., Martin, E. M. M. A., Wang, R., Moreau, J., Lim, C. K., Szot, J. O., Ip, E., Hughes, J. N., Sugimoto, K., Humphreys, D. T., and 21 others. &lt;strong&gt;NAD deficiency, congenital malformations, and niacin supplementation.&lt;/strong&gt; New Eng. J. Med. 377: 544-552, 2017.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/28792876/&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;28792876&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1056/NEJMoa1616361&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="28792876">Shi et al. (2017)</a> identified a homozygous c.558G-A transition in exon 7 of the HAAO gene, resulting in a trp186-to-ter (W186X) substitution. The mutation, which was found by whole-genome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the family. The variant was not found in the ExAC database and was classified as pathogenic based on the American College of Medical Genetics guidelines. In vitro functional expression studies showed that the mutation essentially abolished HAAO enzymatic activity. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28792876" 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;VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
HAAO, ARG43LYS
</div>
</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs1672558841 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1672558841;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=rs1672558841" 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=rs1672558841" 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=RCV001376035 OR RCV001391057 OR RCV003235527" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV001376035, RCV001391057, RCV003235527" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV001376035...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a patient (family 1), born of unrelated parents of Hispanic origin, with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; <a href="/entry/617660">617660</a>), <a href="#6" class="mim-tip-reference" title="Szot, J. O., Slavotinek, A., Chong, K., Brandau, O., Nezarati, M., Cueto-Gonzalez, A. M., Patel, M. S., Devine, W. P., Rego, S., Acyinena, A. P., Shannon, P., Myles-Reid, D., and 17 others. &lt;strong&gt;New cases that expand the genotypic and phenotypic spectrum of congenital NAD deficiency disorder.&lt;/strong&gt; Hum. Mutat. 42: 862-876, 2021.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/33942433/&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;33942433&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=33942433[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.24211&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="33942433">Szot et al. (2021)</a> identified compound heterozygous mutations in the HAAO gene: a c.128G-A transition (c.128G-A, NM_012205.3), resulting in an arg43-to-lys (R43K) substitution, and a c.141C-A transversion, resulting in a his47-to-gln (H47Q; 604521.0004) substitution. The mutations were identified by whole-exome sequencing and the parents were shown to be mutation carriers. Neither mutation was present in the gnomAD database. Yeast with a homozygous knockout for bna1 were transformed with plasmids containing HAAO with each of the mutations or with wildtype HAAO. Each mutant HAAO resulted in smaller yeast mass compared to wildtype when grown in niacin-free culture media. NAD levels were also reduced in yeast transformed with the mutant HAAO plasmids compared to wildtype. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=33942433" 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;VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
HAAO, HIS47GLN
</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> rs746702852 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs746702852;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/rs746702852?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=rs746702852" 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=rs746702852" 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=RCV001391058 OR RCV002265973" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV001391058, RCV002265973" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV001391058...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>For discussion of the c.141C-A transversion (c.141C-A, NM_012205.3) in the HAAO gene, resulting in a his47-to-gln (H47Q) substitution, that was found in compound heterozygous state in a patient with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; <a href="/entry/617660">617660</a>) by <a href="#6" class="mim-tip-reference" title="Szot, J. O., Slavotinek, A., Chong, K., Brandau, O., Nezarati, M., Cueto-Gonzalez, A. M., Patel, M. S., Devine, W. P., Rego, S., Acyinena, A. P., Shannon, P., Myles-Reid, D., and 17 others. &lt;strong&gt;New cases that expand the genotypic and phenotypic spectrum of congenital NAD deficiency disorder.&lt;/strong&gt; Hum. Mutat. 42: 862-876, 2021.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/33942433/&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;33942433&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=33942433[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.24211&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="33942433">Szot et al. (2021)</a>, see <a href="#0003">604521.0003</a>. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=33942433" 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;VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
HAAO, 1-BP DEL, NT43
</div>
</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs1558680405 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1558680405;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=rs1558680405" 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=rs1558680405" 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=RCV001391059 OR RCV002265974" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV001391059, RCV002265974" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV001391059...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a patient (family 2), born of unrelated parents with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; <a href="/entry/617660">617660</a>), <a href="#6" class="mim-tip-reference" title="Szot, J. O., Slavotinek, A., Chong, K., Brandau, O., Nezarati, M., Cueto-Gonzalez, A. M., Patel, M. S., Devine, W. P., Rego, S., Acyinena, A. P., Shannon, P., Myles-Reid, D., and 17 others. &lt;strong&gt;New cases that expand the genotypic and phenotypic spectrum of congenital NAD deficiency disorder.&lt;/strong&gt; Hum. Mutat. 42: 862-876, 2021.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/33942433/&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;33942433&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=33942433[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.24211&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="33942433">Szot et al. (2021)</a> identified a homozygous 1-bp deletion (c.43del, NM_012205.3) in the HAAO gene, resulting in a frameshift and premature termination (Arg15GlyfsTer99). The mutation was identified by whole-exome sequencing and the parents were shown to be mutation carriers. The mutation had an allele frequency of 0.00000443 in the gnomAD database. Yeast with a homozygous knockout for bna1 were transformed with a plasmid containing HAAO with the c.43del mutation or with wildtype HAAO. The mutant HAAO resulted in smaller yeast mass compared to wildtype when grown in niacin-free culture media. NAD levels were also reduced in the yeast transformed with the mutant HAAO plasmid compared to wildtype. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=33942433" 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="0006" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0006&nbsp;VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
HAAO, ARG108GLN
</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> rs1363954556 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1363954556;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/rs1363954556?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=rs1363954556" 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=rs1363954556" 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=RCV001391061 OR RCV001785805 OR RCV002265976" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV001391061, RCV001785805, RCV002265976" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV001391061...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a fetus (family 3) with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; <a href="/entry/617660">617660</a>), <a href="#6" class="mim-tip-reference" title="Szot, J. O., Slavotinek, A., Chong, K., Brandau, O., Nezarati, M., Cueto-Gonzalez, A. M., Patel, M. S., Devine, W. P., Rego, S., Acyinena, A. P., Shannon, P., Myles-Reid, D., and 17 others. &lt;strong&gt;New cases that expand the genotypic and phenotypic spectrum of congenital NAD deficiency disorder.&lt;/strong&gt; Hum. Mutat. 42: 862-876, 2021.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/33942433/&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;33942433&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=33942433[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.24211&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="33942433">Szot et al. (2021)</a> identified compound heterozygous mutations in the HAAO gene: a c.323G-A transition (c.323G-A, NM_012205.3), resulting in an arg108-to-gln (R108Q) substitution, and a c.301G-T transversion, resulting in a gly101-to-trp (G101W; <a href="#0007">604521.0007</a>) substitution. The mutations were identified by trio whole-exome sequencing and the parents were shown to be mutation carriers. Neither mutation was present in the gnomAD database. Yeast with a homozygous knockout for bna1 were transformed with plasmids containing HAAO with either mutation or with wildtype HAAO. Each mutant HAAO resulted in smaller yeast mass compared to wildtype when grown in niacin-free culture media. NAD levels were also reduced in yeast transformed with the mutant HAAO plasmids compared to wildtype. A similarly affected sib fetus was not tested for the mutations. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=33942433" 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="0007" class="mim-anchor"></a>
<h4>
<span class="mim-font">
<strong>.0007&nbsp;VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
<div style="float: left;">
HAAO, GLY101TRP
</div>
</span>
&nbsp;&nbsp;
<div class="btn-group"> <button type="button" class="btn btn-default btn-xs dropdown-toggle mim-font" data-toggle="dropdown">rs1672152382 <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="https://www.ensembl.org/Homo_sapiens/Variation/Summary?v=rs1672152382;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=rs1672152382" 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=rs1672152382" 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=RCV001391060 OR RCV001785804 OR RCV002265975" target="_blank" class="btn btn-default btn-xs mim-tip-hint" title="RCV001391060, RCV001785804, RCV002265975" onclick="gtag('event', 'mim_outbound', {'name': 'ClinVar', 'domain': 'ncbi.nlm.nih.gov'})">RCV001391060...</a>
</span>
</div>
<div>
<span class="mim-text-font">
<p>For discussion of the c.301G-T transversion (c.301G-T, NM_012205.3) in the HAAO gene, resulting in a gly101-to-trp (G101W) substitution, that was found in compound heterozygous state in a fetus with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; <a href="/entry/617660">617660</a>) by <a href="#6" class="mim-tip-reference" title="Szot, J. O., Slavotinek, A., Chong, K., Brandau, O., Nezarati, M., Cueto-Gonzalez, A. M., Patel, M. S., Devine, W. P., Rego, S., Acyinena, A. P., Shannon, P., Myles-Reid, D., and 17 others. &lt;strong&gt;New cases that expand the genotypic and phenotypic spectrum of congenital NAD deficiency disorder.&lt;/strong&gt; Hum. Mutat. 42: 862-876, 2021.[PubMed: &lt;a href=&quot;https://pubmed.ncbi.nlm.nih.gov/33942433/&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;33942433&lt;/a&gt;, &lt;a href=&quot;https://www.ncbi.nlm.nih.gov/pmc/?term=33942433[PMID]&amp;report=imagesdocsum&quot; target=&quot;_blank&quot; onclick=&quot;gtag(&#x27;event&#x27;, &#x27;mim_outbound&#x27;, {&#x27;name&#x27;: &#x27;PubMed Image&#x27;, &#x27;domain&#x27;: &#x27;ncbi.nlm.nih.gov&#x27;})&quot;&gt;images&lt;/a&gt;] [&lt;a href=&quot;https://doi.org/10.1002/humu.24211&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="33942433">Szot et al. (2021)</a>, see <a href="#0006">604521.0006</a>. <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=33942433" 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>
<div>
<a id="references"class="mim-anchor"></a>
<h4 href="#mimReferencesFold" id="mimReferencesToggle" class="mimTriangleToggle" style="cursor: pointer;" data-toggle="collapse">
<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="Foster1986" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Foster, A. C., White, R. J., Schwarcz, R.
<strong>Synthesis of quinolinic acid by 3-hydroxyanthranilic acid oxygenase in rat brain tissue in vitro.</strong>
J. Neurochem. 47: 23-30, 1986.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/2940338/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">2940338</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=2940338" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1111/j.1471-4159.1986.tb02826.x" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="2" class="mim-anchor"></a>
<a id="Gross2014" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Gross, M. B.
<strong>Personal Communication.</strong>
Baltimore, Md. 3/24/2014.
</p>
</div>
</li>
<li>
<a id="3" class="mim-anchor"></a>
<a id="Kohler1988" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Kohler, C., Eriksson, L. G., Okuno, E., Schwarcz, R.
<strong>Localization of quinolinic acid metabolizing enzymes in the rat brain. Immunohistochemical studies using antibodies to 3-hydroxyanthranilic acid oxygenase and quinolinic acid phosphoribosyltransferase.</strong>
Neuroscience 27: 49-76, 1988.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/2974127/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">2974127</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=2974127" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1016/0306-4522(88)90219-9" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="4" class="mim-anchor"></a>
<a id="Malherbe1994" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Malherbe, P., Kohler, C., Da Prada, M., Lang, G., Kiefer, V., Schwarcz, R., Lahm, H.-W., Cesura, A. M.
<strong>Molecular cloning and functional expression of human 3-hydroxyanthranilic-acid dioxygenase.</strong>
J. Biol. Chem. 269: 13792-13797, 1994.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/7514594/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">7514594</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=7514594" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
</p>
</div>
</li>
<li>
<a id="5" class="mim-anchor"></a>
<a id="Shi2017" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Shi, H., Enriquez, A., Rapadas, M., Martin, E. M. M. A., Wang, R., Moreau, J., Lim, C. K., Szot, J. O., Ip, E., Hughes, J. N., Sugimoto, K., Humphreys, D. T., and 21 others.
<strong>NAD deficiency, congenital malformations, and niacin supplementation.</strong>
New Eng. J. Med. 377: 544-552, 2017.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/28792876/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">28792876</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/?cmd=link&linkname=pubmed_pubmed&from_uid=28792876" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1056/NEJMoa1616361" target="_blank">Full Text</a>]
</p>
</div>
</li>
<li>
<a id="6" class="mim-anchor"></a>
<a id="Szot2021" class="mim-anchor"></a>
<div class="">
<p class="mim-text-font">
Szot, J. O., Slavotinek, A., Chong, K., Brandau, O., Nezarati, M., Cueto-Gonzalez, A. M., Patel, M. S., Devine, W. P., Rego, S., Acyinena, A. P., Shannon, P., Myles-Reid, D., and 17 others.
<strong>New cases that expand the genotypic and phenotypic spectrum of congenital NAD deficiency disorder.</strong>
Hum. Mutat. 42: 862-876, 2021.
[PubMed: <a href="https://pubmed.ncbi.nlm.nih.gov/33942433/" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">33942433</a>, <a href="https://www.ncbi.nlm.nih.gov/pmc/?term=33942433[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=33942433" target="_blank" onclick="gtag('event', 'mim_outbound', {'name': 'PubMed Related', 'domain': 'pubmed.ncbi.nlm.nih.gov'})">related citations</a>]
[<a href="https://doi.org/10.1002/humu.24211" target="_blank">Full Text</a>]
</p>
</div>
</li>
</ol>
<div>
<br />
</div>
</div>
</div>
<div>
<a id="contributors" class="mim-anchor"></a>
<div class="row">
<div class="col-lg-2 col-md-2 col-sm-4 col-xs-4">
<span class="mim-text-font">
<a href="#mimCollapseContributors" role="button" data-toggle="collapse"> Contributors: </a>
</span>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Hilary J. Vernon - updated : 07/15/2022
</span>
</div>
</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">
Cassandra L. Kniffin - updated : 09/20/2017<br>Matthew B. Gross - updated : 03/24/2014
</span>
</div>
</div>
</div>
<div>
<a id="creationDate" class="mim-anchor"></a>
<div class="row">
<div class="col-lg-2 col-md-2 col-sm-4 col-xs-4">
<span class="text-nowrap mim-text-font">
Creation Date:
</span>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Patti M. Sherman : 2/8/2000
</span>
</div>
</div>
</div>
<div>
<a id="editHistory" class="mim-anchor"></a>
<div class="row">
<div class="col-lg-2 col-md-2 col-sm-4 col-xs-4">
<span class="text-nowrap mim-text-font">
<a href="#mimCollapseEditHistory" role="button" data-toggle="collapse"> Edit History: </a>
</span>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
carol : 07/15/2022
</span>
</div>
</div>
<div class="row collapse" id="mimCollapseEditHistory">
<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">
<span class="mim-text-font">
carol : 09/21/2017<br>ckniffin : 09/20/2017<br>mgross : 03/24/2014<br>mcapotos : 8/3/2000<br>mgross : 2/15/2000<br>mgross : 2/14/2000<br>psherman : 2/8/2000
</span>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="container visible-print-block">
<div class="row">
<div class="col-md-8 col-md-offset-1">
<div>
<div>
<h3>
<span class="mim-font">
<strong>*</strong> 604521
</span>
</h3>
</div>
<div>
<h3>
<span class="mim-font">
3-HYDROXYANTHRANILATE 3,4-DIOXYGENASE; HAAO
</span>
</h3>
</div>
<div>
<br />
</div>
<div>
<div >
<p>
<span class="mim-font">
<em>Alternative titles; symbols</em>
</span>
</p>
</div>
<div>
<h4>
<span class="mim-font">
3-HYDROXYANTHRANILIC ACID DIOXYGENASE<br />
3-HAO
</span>
</h4>
</div>
</div>
<div>
<br />
</div>
</div>
<div>
<p>
<span class="mim-text-font">
<strong><em>HGNC Approved Gene Symbol: HAAO</em></strong>
</span>
</p>
</div>
<div>
<p>
<span class="mim-text-font">
<strong>
<em>
Cytogenetic location: 2p21
&nbsp;
Genomic coordinates <span class="small">(GRCh38)</span> : 2:42,767,089-42,792,583 </span>
</em>
</strong>
<span class="small">(from NCBI)</span>
</span>
</p>
</div>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Gene-Phenotype Relationships</strong>
</span>
</h4>
<div>
<table class="table table-bordered table-condensed 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">
2p21
</span>
</td>
<td>
<span class="mim-font">
Vertebral, cardiac, renal, and limb defects syndrome 1
</span>
</td>
<td>
<span class="mim-font">
617660
</span>
</td>
<td>
<span class="mim-font">
Autosomal recessive
</span>
</td>
<td>
<span class="mim-font">
3
</span>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>TEXT</strong>
</span>
</h4>
<div>
<h4>
<span class="mim-font">
<strong>Description</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>3-Hydroxyanthranilate 3,4-dioxygenase (HAAO; EC 1.13.11.6) is a monomeric cytosolic protein belonging to the family of intramolecular dioxygenases containing nonheme ferrous iron. It is widely distributed in peripheral organs, such as liver and kidney, and is also present in low amounts in the central nervous system (Foster et al., 1986). Within rat brain, Haao appears to be mainly located in glial cells (Kohler et al., 1988). HAAO catalyzes the synthesis of quinolinic acid (QUIN) from 3-hydroxyanthranilic acid (3HAA). QUIN is an excitotoxin whose toxicity is mediated by its ability to activate glutamate N-methyl-D-aspartate receptors (see 602717). Increased cerebral levels of QUIN may participate in the pathogenesis of neurologic and inflammatory disorders. HAAO has been suggested to play a role in disorders associated with altered tissue levels of QUIN (summary by Malherbe et al., 1994). </p><p>HAAO is also involved in the de novo NAD(H) synthesis pathway, using niacin from dietary input (summary by Shi et al., 2017). </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Cloning and Expression</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>By screening a human hepatoma cell line (HepG2) cDNA library with a rat Haao cDNA, Malherbe et al. (1994) isolated a full-length human HAAO cDNA. The deduced 286-amino acid HAAO protein has a calculated molecular mass of approximately 32.6 kD. Immunoblot analysis of recombinant HAAO expressed in human embryonic kidney fibroblast cells detected a polypeptide with an apparent molecular mass of 32 kD. Northern blot analysis of human liver and HepG2 cells showed that HAAO is expressed as an approximately 1.3-kb transcript. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Mapping</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Gross (2014) mapped the HAAO gene to chromosome 2p21 based on an alignment of the HAAO sequence (GenBank BC029510) with the genomic sequence (GRCh37).</p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Molecular Genetics</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>In 2 unrelated patients, each born of consanguineous parents, with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; 617660), Shi et al. (2017) identified homozygous truncating mutations in the HAAO gene (604521.0001 and 604521.0002). The mutations, which were found by whole-exome or whole-genome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the families. In vitro functional expression studies showed that both mutations essentially abolished HAAO enzymatic activity. Analysis of patient plasma showed increased levels of the upstream metabolite 3HAA and decreased levels of the downstream metabolites NAD and NAH(H). Both patients belonged to a pair of dizygotic twins; their twins were unaffected and heterozygous for the mutation. Studies in mice, which have different niacin levels compared to humans, indicated that the congenital malformations found in humans resulted from deficient NAD levels rather than increased 3HAA. Shi et al. (2017) noted that NAD is a cofactor with broad cellular effects, including ATP production, macromolecular biosynthesis, redox reactions, energy metabolism, DNA repair, and modulation of transcription factors, all of which play an important role in embryogenesis. </p><p>In 3 unrelated patients with VCRL1, Szot et al. (2021) identified compound heterozygous or homozygous mutations in the HAAO gene (604521.0003-604521.0007). Yeast with a homozygous knockout for bna1, the ortholog of human HAAO, were transformed with plasmids containing HAAO with each mutation or with wildtype HAAO. Each mutant HAAO resulted in smaller yeast mass compared to wildtype when grown in niacin-free culture media. NAD levels were also reduced in yeast transformed with the mutant HAAO plasmids compared to wildtype. Szot et al. (2021) concluded that the compromised growth of the bna1 knockout yeast transfected with each mutant HAAO was a result of abnormal HAAO enzyme activity. </p>
</span>
<div>
<br />
</div>
<div>
<h4>
<span class="mim-font">
<strong>Animal Model</strong>
</span>
</h4>
</div>
<span class="mim-text-font">
<p>Shi et al. (2017) found that Haao-null mice were viable and normal. Plasma analysis showed increased 3HAA levels, but normal NAD levels. The authors noted that mice have increased niacin levels compared to humans and that mouse embryos may receive niacin from their mothers, resulting in a buffering effect on genetic-based NAD deficiency. These findings suggested that the congenital malformations found in humans with increased levels of 3HAA but decreased levels of NAD, resulted from the deficient NAD levels. Indeed, further studies in mutant mice born to mothers on a niacin-free diet showed that NAD deficiency due to lack of Haao resulted in multiple defects, including defects in vertebral segmentation, heart defects, small kidney, cleft palate, talipes, syndactyly, and caudal agenesis. Supplementation of Haao-null mouse embryos with niacin during gestation restored NAD levels and prevented the disruption of embryogenesis. </p>
</span>
<div>
<br />
</div>
</div>
<div>
<h4>
<span class="mim-font">
<strong>ALLELIC VARIANTS</strong>
</span>
<strong>7 Selected Examples):</strong>
</span>
</h4>
<div>
<p />
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0001 &nbsp; VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
HAAO, ASP162TER ({dbSNP SCV000540919})
<br />
SNP: rs527656756,
gnomAD: rs527656756,
ClinVar: RCV000496188, RCV000505810
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a boy, born of consanguineous Iraqi parents (family A), with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; 617660), Shi et al. (2017) identified a homozygous 1-bp duplication (c.483dupT) in exon 6 of the HAAO gene, resulting in a frameshift and premature termination (Asp162Ter). The mutation, which was found by whole-exome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the family. The variant was filtered against the ExAC database and was classified as pathogenic based on the American College of Medical Genetics guidelines. In vitro functional expression studies showed that the mutation essentially abolished HAAO enzymatic activity. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0002 &nbsp; VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
HAAO, TRP186TER ({dbSNP SCV000540920})
<br />
SNP: rs1135401743,
gnomAD: rs1135401743,
ClinVar: RCV000496104, RCV000505813
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a girl, born of consanguineous Lebanese parents (family B), with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; 617660), Shi et al. (2017) identified a homozygous c.558G-A transition in exon 7 of the HAAO gene, resulting in a trp186-to-ter (W186X) substitution. The mutation, which was found by whole-genome sequencing and confirmed by Sanger sequencing, segregated with the disorder in the family. The variant was not found in the ExAC database and was classified as pathogenic based on the American College of Medical Genetics guidelines. In vitro functional expression studies showed that the mutation essentially abolished HAAO enzymatic activity. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0003 &nbsp; VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
HAAO, ARG43LYS
<br />
SNP: rs1672558841,
ClinVar: RCV001376035, RCV001391057, RCV003235527
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a patient (family 1), born of unrelated parents of Hispanic origin, with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; 617660), Szot et al. (2021) identified compound heterozygous mutations in the HAAO gene: a c.128G-A transition (c.128G-A, NM_012205.3), resulting in an arg43-to-lys (R43K) substitution, and a c.141C-A transversion, resulting in a his47-to-gln (H47Q; 604521.0004) substitution. The mutations were identified by whole-exome sequencing and the parents were shown to be mutation carriers. Neither mutation was present in the gnomAD database. Yeast with a homozygous knockout for bna1 were transformed with plasmids containing HAAO with each of the mutations or with wildtype HAAO. Each mutant HAAO resulted in smaller yeast mass compared to wildtype when grown in niacin-free culture media. NAD levels were also reduced in yeast transformed with the mutant HAAO plasmids compared to wildtype. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0004 &nbsp; VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
HAAO, HIS47GLN
<br />
SNP: rs746702852,
gnomAD: rs746702852,
ClinVar: RCV001391058, RCV002265973
</span>
</div>
<div>
<span class="mim-text-font">
<p>For discussion of the c.141C-A transversion (c.141C-A, NM_012205.3) in the HAAO gene, resulting in a his47-to-gln (H47Q) substitution, that was found in compound heterozygous state in a patient with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; 617660) by Szot et al. (2021), see 604521.0003. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0005 &nbsp; VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
HAAO, 1-BP DEL, NT43
<br />
SNP: rs1558680405,
ClinVar: RCV001391059, RCV002265974
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a patient (family 2), born of unrelated parents with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; 617660), Szot et al. (2021) identified a homozygous 1-bp deletion (c.43del, NM_012205.3) in the HAAO gene, resulting in a frameshift and premature termination (Arg15GlyfsTer99). The mutation was identified by whole-exome sequencing and the parents were shown to be mutation carriers. The mutation had an allele frequency of 0.00000443 in the gnomAD database. Yeast with a homozygous knockout for bna1 were transformed with a plasmid containing HAAO with the c.43del mutation or with wildtype HAAO. The mutant HAAO resulted in smaller yeast mass compared to wildtype when grown in niacin-free culture media. NAD levels were also reduced in the yeast transformed with the mutant HAAO plasmid compared to wildtype. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0006 &nbsp; VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
HAAO, ARG108GLN
<br />
SNP: rs1363954556,
gnomAD: rs1363954556,
ClinVar: RCV001391061, RCV001785805, RCV002265976
</span>
</div>
<div>
<span class="mim-text-font">
<p>In a fetus (family 3) with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; 617660), Szot et al. (2021) identified compound heterozygous mutations in the HAAO gene: a c.323G-A transition (c.323G-A, NM_012205.3), resulting in an arg108-to-gln (R108Q) substitution, and a c.301G-T transversion, resulting in a gly101-to-trp (G101W; 604521.0007) substitution. The mutations were identified by trio whole-exome sequencing and the parents were shown to be mutation carriers. Neither mutation was present in the gnomAD database. Yeast with a homozygous knockout for bna1 were transformed with plasmids containing HAAO with either mutation or with wildtype HAAO. Each mutant HAAO resulted in smaller yeast mass compared to wildtype when grown in niacin-free culture media. NAD levels were also reduced in yeast transformed with the mutant HAAO plasmids compared to wildtype. A similarly affected sib fetus was not tested for the mutations. </p>
</span>
</div>
<div>
<br />
</div>
</div>
<div>
<div>
<h4>
<span class="mim-font">
<strong>.0007 &nbsp; VERTEBRAL, CARDIAC, RENAL, AND LIMB DEFECTS SYNDROME 1</strong>
</span>
</h4>
</div>
<div>
<span class="mim-text-font">
HAAO, GLY101TRP
<br />
SNP: rs1672152382,
ClinVar: RCV001391060, RCV001785804, RCV002265975
</span>
</div>
<div>
<span class="mim-text-font">
<p>For discussion of the c.301G-T transversion (c.301G-T, NM_012205.3) in the HAAO gene, resulting in a gly101-to-trp (G101W) substitution, that was found in compound heterozygous state in a fetus with vertebral, cardiac, renal, and limb defects syndrome-1 (VCRL1; 617660) by Szot et al. (2021), see 604521.0006. </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">
Foster, A. C., White, R. J., Schwarcz, R.
<strong>Synthesis of quinolinic acid by 3-hydroxyanthranilic acid oxygenase in rat brain tissue in vitro.</strong>
J. Neurochem. 47: 23-30, 1986.
[PubMed: 2940338]
[Full Text: https://doi.org/10.1111/j.1471-4159.1986.tb02826.x]
</p>
</li>
<li>
<p class="mim-text-font">
Gross, M. B.
<strong>Personal Communication.</strong>
Baltimore, Md. 3/24/2014.
</p>
</li>
<li>
<p class="mim-text-font">
Kohler, C., Eriksson, L. G., Okuno, E., Schwarcz, R.
<strong>Localization of quinolinic acid metabolizing enzymes in the rat brain. Immunohistochemical studies using antibodies to 3-hydroxyanthranilic acid oxygenase and quinolinic acid phosphoribosyltransferase.</strong>
Neuroscience 27: 49-76, 1988.
[PubMed: 2974127]
[Full Text: https://doi.org/10.1016/0306-4522(88)90219-9]
</p>
</li>
<li>
<p class="mim-text-font">
Malherbe, P., Kohler, C., Da Prada, M., Lang, G., Kiefer, V., Schwarcz, R., Lahm, H.-W., Cesura, A. M.
<strong>Molecular cloning and functional expression of human 3-hydroxyanthranilic-acid dioxygenase.</strong>
J. Biol. Chem. 269: 13792-13797, 1994.
[PubMed: 7514594]
</p>
</li>
<li>
<p class="mim-text-font">
Shi, H., Enriquez, A., Rapadas, M., Martin, E. M. M. A., Wang, R., Moreau, J., Lim, C. K., Szot, J. O., Ip, E., Hughes, J. N., Sugimoto, K., Humphreys, D. T., and 21 others.
<strong>NAD deficiency, congenital malformations, and niacin supplementation.</strong>
New Eng. J. Med. 377: 544-552, 2017.
[PubMed: 28792876]
[Full Text: https://doi.org/10.1056/NEJMoa1616361]
</p>
</li>
<li>
<p class="mim-text-font">
Szot, J. O., Slavotinek, A., Chong, K., Brandau, O., Nezarati, M., Cueto-Gonzalez, A. M., Patel, M. S., Devine, W. P., Rego, S., Acyinena, A. P., Shannon, P., Myles-Reid, D., and 17 others.
<strong>New cases that expand the genotypic and phenotypic spectrum of congenital NAD deficiency disorder.</strong>
Hum. Mutat. 42: 862-876, 2021.
[PubMed: 33942433]
[Full Text: https://doi.org/10.1002/humu.24211]
</p>
</li>
</ol>
<div>
<br />
</div>
</div>
</div>
<div>
<div class="row">
<div class="col-lg-1 col-md-1 col-sm-2 col-xs-2">
<span class="text-nowrap mim-text-font">
Contributors:
</span>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Hilary J. Vernon - updated : 07/15/2022<br>Cassandra L. Kniffin - updated : 09/20/2017<br>Matthew B. Gross - updated : 03/24/2014
</span>
</div>
</div>
</div>
<div>
<br />
</div>
<div>
<div class="row">
<div class="col-lg-1 col-md-1 col-sm-2 col-xs-2">
<span class="text-nowrap mim-text-font">
Creation Date:
</span>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
Patti M. Sherman : 2/8/2000
</span>
</div>
</div>
</div>
<div>
<br />
</div>
<div>
<div class="row">
<div class="col-lg-1 col-md-1 col-sm-2 col-xs-2">
<span class="text-nowrap mim-text-font">
Edit History:
</span>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-6">
<span class="mim-text-font">
carol : 07/15/2022<br>carol : 09/21/2017<br>ckniffin : 09/20/2017<br>mgross : 03/24/2014<br>mcapotos : 8/3/2000<br>mgross : 2/15/2000<br>mgross : 2/14/2000<br>psherman : 2/8/2000
</span>
</div>
</div>
</div>
<div>
<br />
</div>
</div>
</div>
</div>
</div>
<div id="mimFooter">
<div class="container ">
<div class="row">
<br />
<br />
</div>
</div>
<div class="hidden-print mim-footer">
<div class="container">
<div class="row">
<p />
</div>
<div class="row text-center small">
NOTE: OMIM is intended for use primarily by physicians and other professionals concerned with genetic disorders, by genetics researchers,
and by advanced students in science and medicine. While the OMIM database is open to the public, users seeking information about a personal
medical or genetic condition are urged to consult with a qualified physician for diagnosis and for answers to personal questions.
<br />
OMIM<sup>&reg;</sup> and Online Mendelian Inheritance in Man<sup>&reg;</sup> are registered trademarks of the Johns Hopkins University.
<br />
Copyright<sup>&reg;</sup> 1966-2025 Johns Hopkins University.
</div>
</div>
</div>
<div class="visible-print-block mim-footer" style="position: relative;">
<div class="container">
<div class="row">
<p />
</div>
<div class="row text-center small">
NOTE: OMIM is intended for use primarily by physicians and other professionals concerned with genetic disorders, by genetics researchers,
and by advanced students in science and medicine. While the OMIM database is open to the public, users seeking information about a personal
medical or genetic condition are urged to consult with a qualified physician for diagnosis and for answers to personal questions.
<br />
OMIM<sup>&reg;</sup> and Online Mendelian Inheritance in Man<sup>&reg;</sup> are registered trademarks of the Johns Hopkins University.
<br />
Copyright<sup>&reg;</sup> 1966-2025 Johns Hopkins University.
<br />
Printed: March 5, 2025
</div>
</div>
</div>
</div>
<div class="modal fade" id="mimDonationPopupModal" tabindex="-1" role="dialog" aria-labelledby="mimDonationPopupModalTitle">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" id="mimDonationPopupCancel" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
<h4 class="modal-title" id="mimDonationPopupModalTitle">
OMIM Donation:
</h4>
</div>
<div class="modal-body">
<div class="row">
<div class="col-lg-offset-1 col-md-offset-1 col-sm-offset-1 col-xs-offset-1 col-lg-10 col-md-10 col-sm-10 col-xs-10">
<p>
Dear OMIM User,
</p>
</div>
</div>
<div class="row">
<div class="col-lg-offset-1 col-md-offset-1 col-sm-offset-1 col-xs-offset-1 col-lg-10 col-md-10 col-sm-10 col-xs-10">
<p>
To ensure long-term funding for the OMIM project, we have diversified
our revenue stream. We are determined to keep this website freely
accessible. Unfortunately, it is not free to produce. Expert curators
review the literature and organize it to facilitate your work. Over 90%
of the OMIM's operating expenses go to salary support for MD and PhD
science writers and biocurators. Please join your colleagues by making a
donation now and again in the future. Donations are an important
component of our efforts to ensure long-term funding to provide you the
information that you need at your fingertips.
</p>
</div>
</div>
<div class="row">
<div class="col-lg-offset-1 col-md-offset-1 col-sm-offset-1 col-xs-offset-1 col-lg-10 col-md-10 col-sm-10 col-xs-10">
<p>
Thank you in advance for your generous support, <br />
Ada Hamosh, MD, MPH <br />
Scientific Director, OMIM <br />
</p>
</div>
</div>
</div>
<div class="modal-footer">
<button type="button" id="mimDonationPopupDonate" class="btn btn-success btn-block" data-dismiss="modal"> Donate To OMIM! </button>
</div>
</div>
</div>
</div>
</div>
</body>
</html>