ID 1.11.2.1 DE Unspecific peroxygenase. AN Haloperoxidase-peroxygenase. CA RH + H(2)O(2) = ROH + H(2)O. CF Heme-thiolate. CC -!- Enzymes of this type include glycoproteins secreted by agaric CC basidiomycetes. CC -!- They catalyze the insertion of an oxygen atom from H(2)O(2) into a CC wide variety of substrates, including aromatic rings such as CC naphthalene, toluene, phenanthrene, pyrene and p-nitrophenol, CC recalcitrant heterocycles such as pyridine, dibenzofuran, various CC ethers (resulting in O-dealkylation) and alkanes such as propane, CC hexane and cyclohexane. CC -!- Reactions catalyzed include hydroxylation, epoxidation, N-oxidation, CC sulfooxidation, O- and N-dealkylation, bromination and one-electron CC oxidations. CC -!- They have little or no activity toward chloride. CC -!- Mechanistically, the catalytic cycle of unspecific (mono)- CC peroxygenases combines elements of the 'shunt' pathway of cytochrome CC P450s (a side activity that utilizes a peroxide in place of dioxygen CC and NAD(P)H) and the classic heme peroxidase cycle. PR PROSITE; PDOC00394; DR B9W4V6, APO1_AGRAE ; //