. "Catalysis of the reaction: pentachlorophenol + NADPH + H+ + O2 = tetrachlorohydroquinone + NADP+ + chloride." . . "pentachlorophenol monooxygenase activity" . "PCB 4-monooxygenase activity" . "PCB4MO activity" . "PCP hydroxylase activity" . "PcpB" . "pentachlorophenol 4-monooxygenase activity" . "pentachlorophenol dechlorinase activity" . "pentachlorophenol dehalogenase activity" . "pentachlorophenol hydroxylase activity" . "pentachlorophenol,NADPH:oxygen oxidoreductase (hydroxylating, dechlorinating)" . . .