Structures of substrates that are hydrolyzed by BcPMH: 1a: phenyl phosphate, 1b: p-nitrophenyl phosphate, 2a: diphenyl phosphate, 2b: p-nitrophenyl ethyl phosphate, 3b: paraoxon, 4a: phenyl phenylphosphonate, 4b: p-nitrophenyl phenylphosphonate, 5a: phenyl sulfate, 5b: p-nitrophenyl sulfate, 6a: phenyl phenylsulfonate, 6b: p-nitrophenyl phenylsulfonate. Gray lines indicate the bonds that are broken during hydrolysis.