NCIt definition : Human CYP2D6*2 allele is located in the vicinity of 22q13.1 and is approximately 4
kb in length. This allele, a variant form of the CYP2D6 wild-type allele, encodes
cytochrome P450 2D6*2 protein. The majority of haplotypes of the CYP2D6*2 allele exhibit
SNPs (g.2850C T; g.4180G C) in exons 6 and 9 that result in R296C and S486T coding
changes. These alterations in protein sequence have no significant effect on the enzymatic
activity of the cytochrome P450 2D6*2 protein.;