Cytochrome P450, Family 2, Subfamily C, Polypeptide 9 (CYP2C9) ELISA Kit for Human

This gene 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 rifampin. The enzyme is known to metabolize many xenobiotics, including phenytoin, tolbutamide, ibuprofen and S-warfarin. Studies identifying individuals who are poor metabolizers of phenytoin and tolbutamide suggest that this gene is polymorphic. The gene is located within a cluster of cytochrome P450 genes on chromosome 10q24. [provided by RefSeq, Jul 2008]

CYP2C9: Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S- warfarin, diclofenac, phenytoin, tolbutamide and losartan. Belongs to the cytochrome P450 family.

Protein type: Oxidoreductase; Lipid Metabolism - arachidonic acid; EC 1.14.14.1; Xenobiotic Metabolism - metabolism by cytochrome P450; Lipid Metabolism - linoleic acid; Xenobiotic Metabolism - drug metabolism - cytochrome P450; Secondary Metabolites Metabolism - limonene and pinene degradation; Cofactor and Vitamin Metabolism - retinol

Chromosomal Location of Human Ortholog: 10q24

Cellular Component: endoplasmic reticulum membrane; intracellular membrane-bound organelle; cytoplasm

Molecular Function: (S)-limonene 6-monooxygenase activity; iron ion 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; heme binding; arachidonic acid epoxygenase activity; (S)-limonene 7-monooxygenase activity; oxidoreductase activity; drug binding; steroid hydroxylase activity; oxygen binding; monooxygenase activity

Biological Process: steroid metabolic process; amide metabolic process; drug catabolic process; xenobiotic metabolic process; exogenous drug catabolic process; arachidonic acid metabolic process; monoterpenoid metabolic process; epoxygenase P450 pathway; drug metabolic process; monocarboxylic acid metabolic process; urea metabolic process

Disease: Coumarin Resistance