Cytochrome P450, family 3, subfamily A, also known as<unk> , is a human gene locus. A homologous locus is found in mice. The<unk>  locus includes all the known members of the 3A subfamily of the cytochrome P450 superfamily of genes. These genes encode monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. The<unk>  cluster consists of four genes: *<unk> 4, *<unk> 5, *<unk> 7, and *<unk> 43. The region also contains four pseudogenes: * , * , * , and * . as well as several extra exons which may or may not be included in transcripts produced from this region. Previously another<unk>  member,<unk> 3, was thought to exist; however, it is now thought that this sequence represents a transcript variant of<unk> 4.
CYP3A
CYP1A2
CYP2D6
CYP2C19
CYP2J2
CYP2C8
CYP1A1
CYP2C9