Article
Cystathionine β-synthase T833C/844INS68 polymorphism: a family-based study on mentally retarded children
1 Dec 2005
Abstract excerpt
BACKGROUND: Cystathionine beta-synthase (CBS) mediates conversion of homocysteine to cystathionine and deficiency in enzyme activity may lead to hyperhomocysteinemia/homocystinuria, which are often associated with mental retardation (MR). A large number of polymorphisms have been reported in the CBS gene, some of which impair its activity and among these, a T833C polymorphism in cis with a 68 bp insertion at 844...
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