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CYP3A4 Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4- hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2- exo-monooxygenase. The enzyme also hydroxylates etoposide. Belongs to the cytochrome P450 family. Note: This description may include information from UniProtKB.
Protein type: Cell surface; Cofactor and Vitamin Metabolism - retinol; EC; Lipid Metabolism - linoleic acid; Membrane protein, integral; Oxidoreductase; Xenobiotic Metabolism - drug metabolism - cytochrome P450; Xenobiotic Metabolism - drug metabolism - other enzymes; Xenobiotic Metabolism - metabolism by cytochrome P450
Chromosomal Location of Human Ortholog: 7q22.1
Cellular Component: cytoplasm; endoplasmic reticulum membrane; integral component of membrane; intracellular membrane-bound organelle
Molecular Function: albendazole monooxygenase activity; enzyme binding; heme binding; iron ion binding; monooxygenase activity; oxidoreductase activity; oxygen binding; quinine 3-monooxygenase activity; steroid binding; steroid hydroxylase activity; taurochenodeoxycholate 6alpha-hydroxylase activity; testosterone 6-beta-hydroxylase activity; vitamin D3 25-hydroxylase activity
Biological Process: alkaloid catabolic process; androgen metabolic process; drug catabolic process; drug metabolic process; exogenous drug catabolic process; heterocycle metabolic process; lipid metabolic process; monoterpenoid metabolic process; steroid catabolic process; steroid metabolic process; vitamin D metabolic process; xenobiotic metabolic process
Reference #:  P08684 (UniProtKB)
Alt. Names/Synonyms: Albendazole monooxygenase; Albendazole sulfoxidase; CP33; CP34; CP3A4; CYP3A; CYP3A3; CYP3A4; CYPIIIA3; CYPIIIA4; Cytochrome P450 3A3; Cytochrome P450 3A4; Cytochrome P450 HLp; Cytochrome P450 NF-25; cytochrome P450, family 3, subfamily A, polypeptide 4; cytochrome P450, subfamily IIIA (niphedipine oxidase), polypeptide 3; cytochrome P450, subfamily IIIA (niphedipine oxidase), polypeptide 4; Cytochrome P450-PCN1; glucocorticoid-inducible P450; HLP; MGC126680; NF-25; Nifedipine oxidase; P450-III, steroid inducible; P450C3; P450PCN1; Quinine 3-monooxygenase; Taurochenodeoxycholate 6-alpha-hydroxylase
Gene Symbols: CYP3A4
Molecular weight: 57,343 Da
Basal Isoelectric point: 8.27  Predict pI for various phosphorylation states
Protein-Specific Antibodies or siRNAs from Cell Signaling Technology® Total Proteins
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