CYP2A6 Antibody – Rabbit Polyclonal

This gene, CYP2A6, encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the endoplasmic reticulum and its expression is induced by phenobarbital. The enzyme is known to hydroxylate coumarin, and also metabolizes nicotine, aflatoxin B1, nitrosamines, and some pharmaceuticals. Individuals with certain allelic variants are said to have a poor metabolizer phenotype, meaning they do not efficiently metabolize coumarin or nicotine. This gene is part of a large cluster of cytochrome P450 genes from the CYP2A, CYP2B and CYP2F subfamilies on chromosome 19q. The gene was formerly referred to as CYP2A3; however, it has been renamed CYP2A6. [provided by RefSeq, Jul 2008]

CYP2A6: Exhibits a high coumarin 7-hydroxylase activity. Can act in the hydroxylation of the anti-cancer drugs cyclophosphamide and ifosphamide. Competent in the metabolic activation of aflatoxin B1. Constitutes the major nicotine C-oxidase. Acts as a 1,4- cineole 2-exo-monooxygenase. Possesses low phenacetin O- deethylation activity. Belongs to the cytochrome P450 family.

Protein type: Oxidoreductase; Secondary Metabolites Metabolism - caffeine; EC 1.14.14.1; Cofactor and Vitamin Metabolism - retinol; Endoplasmic reticulum; Xenobiotic Metabolism - drug metabolism - other enzymes; Xenobiotic Metabolism - drug metabolism - cytochrome P450

Chromosomal Location of Human Ortholog: 19q13.2

Cellular Component: endoplasmic reticulum membrane; intracellular membrane-bound organelle; cytoplasmic microtubule

Molecular Function: coumarin 7-hydroxylase activity; enzyme binding; iron ion binding; heme binding; oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen; arachidonic acid epoxygenase activity; steroid hydroxylase activity; oxygen binding

Biological Process: steroid metabolic process; coumarin metabolic process; xenobiotic metabolic process; coumarin catabolic process; exogenous drug catabolic process; epoxygenase P450 pathway; drug metabolic process

Disease: Tobacco Addiction, Susceptibility To; Lung Cancer; Coumarin Resistance