FEATURES

FAMILY

DESCRIPTION

Also known as CP4CA_MOUSE, Cyp4a12a, Cyp4a12. A cytochrome P450 monooxygenase involved in the metabolism of fatty acids and their oxygenated derivatives (oxylipins) (PubMed:17112342). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (CPR; NADPH-ferrihemoprotein reductase) (PubMed:17112342). Catalyzes predominantly the oxidation of the terminal carbon (omega-oxidation) of saturated and unsaturated fatty acids (PubMed:17112342). May act as a major omega-hydroxylase for dodecanoic (lauric) acid in kidney (PubMed:17112342). Participates in omega-hydroxylation of (5Z, 8Z, 11Z, 14Z)-eicosatetraenoic acid (arachidonate) to 20-hydroxyeicosatetraenoic acid (20-HETE), a signaling molecule acting both as vasoconstrictive and natriuretic with overall effect on arterial blood pressure. Further catalyzes successive omega-oxidations of 20-HETE to the corresponding dicarboxylic acid, and may contribute to the degradation of PUFA by chain shortening (PubMed:17112342). Acts as an omega-hydroxylase and epoxidase toward (5Z, 8Z, 11Z, 14Z, 17Z)-eicosapentaenoc acid (EPA). Catalyzes stereoselective epoxidation of the last double bond of EPA, displaying a strong preference for the (R, S) stereoisomer (PubMed:17112342). Can also catalyze the oxidation of the penultimate carbon (omega-1 oxidation) of fatty acids with lower efficiency (PubMed:17112342).

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EXTERNAL LINKS

Cyp4a12a

Cytochrome P450 4A12A

ligandability Mutations

Cyp4a12a

Molecular Synopsis