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A novel missense mutation in MIP gene resulted in polymorphic cataract / 中华医学遗传学杂志
Chinese Journal of Medical Genetics ; (6): 6-10, 2008.
Article in Chinese | WPRIM | ID: wpr-229832
ABSTRACT
<p><b>OBJECTIVE</b>To map the disease locus for a congenital cataract family, and detect the disease-causing gene.</p><p><b>METHODS</b>An autosomal dominant congenital cataract family was genotyped by genome wide scan using 382 autosomal microsatellite markers from ABI-MD10. Two-point linkage analysis was carried out by the MLINK program.</p><p><b>RESULTS</b>The disease locus of this family was mapped at 12p11.2-q15. Sequence analysis of a candidate gene-major intrinsic protein (MIP) revealed a novel missense mutation G-->A at the nucleotide 702 in exon 4, which resulted in a substitution of arginine to lysine at codon 233 (p.R233K).</p><p><b>CONCLUSION</b>The mutation G-->A at nt702 in MIP gene was associated with the binocular polymorphic congenital cataract in the family. This transition occurring at the C-terminus of MIP might decrease the stability of the C-end of the protein and impact the function of the protein.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Pedigree / Polymorphism, Genetic / Cataract / Base Sequence / Genome, Human / Exons / Sequence Analysis, DNA / Aquaporins / Mutation, Missense / Genomics Limits: Female / Humans / Male Language: Chinese Journal: Chinese Journal of Medical Genetics Year: 2008 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pedigree / Polymorphism, Genetic / Cataract / Base Sequence / Genome, Human / Exons / Sequence Analysis, DNA / Aquaporins / Mutation, Missense / Genomics Limits: Female / Humans / Male Language: Chinese Journal: Chinese Journal of Medical Genetics Year: 2008 Type: Article