Cytochrome P450 Family Gene

**Semantic type:** Gene or Genome

**Definition:** Cytochrome P450 Family Genes encode Cytochrome P450 isozymes, hemoprotein components of the mixed-function oxidase system involving electron and/or hydrogen transport through reversible valency change of the heme iron and metabolic biotransformation of substances, including foreign compounds to mutagens and carcinogens. (NCI)