CYP2D7
Cytochrome P450 2D7 (CYP2D7) is a member of the cytochrome P450 gene superfamily. The cytochrome P450 proteins are monooxygenases that catalyze many reactions involved in drug metabolism and the synthesis of cholesterol, steroids, and other lipids. CYP2D7 is a segregating pseudogene, meaning that some individuals may have an allele that encodes a functional enzyme, while others have an allele encoding a protein that is predicted to be non-functional. In this case, the functional allele is thought to be rare. This locus is part of a cluster of cytochrome P450 genes on chromosome 22.