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cytochrome P450 family 4, subfamily F Cytochrome P450 family 4, subfamily F (CYP4F) enzymes are known for known for omega-hydroxylation of very long fatty acids (VLFA; C18-C26), leukotrienes, prostaglandins, and vitamins with long alkyl side chains. The CYP4F subfamily show diverse specificities among its members: CYP4F2 and CYP4F3 metabolize pro- and anti-inflammatory leukotrienes; CYP4F8 and CYP4F12 metabolize prostaglandins, endoperoxides and arachidonic acid; CYP4F11 and CYP4F12 metabolize VLFA and are unique in the CYP4F subfamily since they also hydroxylate xenobiotics such as benzphetamine, ethylmorphine, erythromycin, and ebastine. CYP4F belongs to the large cytochrome P450 (P450, CYP) superfamily of heme-containing proteins that catalyze a variety of oxidative reactions of a large number of structurally different endogenous and exogenous compounds in organisms from all major domains of life. CYPs bind their diverse ligands in a buried, hydrophobic active site, which is accessed through a substrate access channel formed by two flexible helices and their connecting loop.
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