Human Molecular Genetics, Vol 5, 415-419, Copyright © 1996 by Oxford University Press
V Berry, AC Ionides, AT Moore, C Plant, SS Bhattacharya and A Shiels
Inherited cataract is a clinically and genetically heterogeneous disease.
Here we report the identification of a new locus for an autosomal dominant
anterior polar cataract on the short arm of chromosome 17. To map this new
locus we performed genetic linkage analysis with microsatellite markers in
a four-generation pedigree. After exclusion of seven candidate loci for
cataract, we obtained significant positive LOD scores for markers D17S849
(Z = 4.01 / theta = 0.05) and D17S796 (Z = 4.17 / theta = 0.05). Multipoint
analysis gave a maximum LOD score of 5.2 (theta max = 0.06) between these
two markers. From haplotype analysis, the cataract locus lies in the 13 cM
interval between markers D17S849 and D17S796. This study provides the first
genetic mapping of an autosomal dominant anterior polar cataract.
ARTICLES
A locus for autosomal dominant anterior polar cataract on chromosome 17p
Department of Molecular Genetics, University College London, UK.
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