NCIt definition : Human CBS wild-type allele is located in the vicinity of 21q22.3 and is approximately
24 kb in length. This allele, which encodes cystathionine beta-synthase protein, is
involved in the detoxification of homocysteine and the synthesis of cysteine. Mutation
of the gene is associated with cystathionine beta-synthase deficiency (CBSD), which
can lead to homocystinuria and an increase risk of thrombosis.;