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Identification of the gene for Nance-Horan syndrome (NHS)

Brooks, S.P.; Ebenezer, N.D.; Poopalasundaram, S.; Lehmann, O.J.; Moore, A.T.; Hardcastle, A.J.; (2004) Identification of the gene for Nance-Horan syndrome (NHS). Journal of Medical Genetics , 41 (10) pp. 768-771. 10.1136/jmg.2004.022517. Green open access

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Objective: To identify the gene or genes responsible for these diseases. Methods: Families with NHS were ascertained. The refined locus for CXN was used to focus the search for candidate genes, which were screened by polymerase chain reaction and direct sequencing of potential exons and intron-exon splice sites. Genomic structures and homologies were determined using bioinformatics. Expression studies were undertaken using specific exonic primers to amplify human fetal cDNA and mouse RNA. Results: A novel gene NHS, with no known function, was identified as causative for NHS. Protein truncating mutations were detected in all three NHS pedigrees, but no mutation was identified in a CXN family, raising the possibility that NHS and CXN may not be allelic. The NHS gene forms a new gene family with a closely related novel gene NHS-Like1 (NHSL1). NHS and NHSL1 lie in paralogous duplicated chromosomal intervals on Xp22 and 6q24, and NHSL1 is more broadly expressed than NHS in human fetal tissues. Conclusions: This study reports the independent identification of the gene causative for Nance-Horan syndrome and extends the number of mutations identified.

Type: Article
Title: Identification of the gene for Nance-Horan syndrome (NHS)
Open access status: An open access version is available from UCL Discovery
DOI: 10.1136/jmg.2004.022517
Publisher version: http://dx.doi.org/10.1136/jmg.2004.022517
Language: English
Keywords: Nance-Horan syndrome, cataract, Xp22, paralog
UCL classification: UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Institute of Ophthalmology
URI: https://discovery.ucl.ac.uk/id/eprint/7291
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