期刊
PROSTAGLANDINS & OTHER LIPID MEDIATORS
卷 68-9, 期 -, 页码 325-344出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/S0090-6980(02)00038-2
关键词
cytochrome p450; arachidonic acid bioactivation; physiological role
The cytochrome P450 (P450) arachidonic acid (AA) monooxygenase metabolizes the fatty acid to a series of epoxy- and hydroxy-acid derivatives. Catalytic turnover requires NADPH, and requires the redox-coupled activation and cleavage of diatomic oxygen, and the delivery of an active form of atomic oxygen to ground state carbon atoms. Past and present advances in P450 biochemistry and molecular biology are beginning to provide a description of the P450 isoform specificity of AA bioactivation, and the mechanisms of action and physiological relevance of the P450 metabolites. The demonstration of the endogenous biosynthesis of many of these metabolites has established the P450 pathway as an important route for AA bioactivation, and has begun to uncovered new and important functional roles for this enzyme system in cell and organ physiology. (C) 2002 Elsevier Science Inc. All rights reserved.
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