cytochrome P450-pinF1 and similar cytochrome P450s
This subfamily is composed of bacterial CYPs similar to Agrobacterium tumefaciens plant-inducible cytochrome P450-pinF1, which is not essential for virulence but may be involved in the detoxification of plant protective agents at the site of wounding. The P450-pinF1-like subfamily 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.