SEARCH Articles Figures Tables Copper proteins phenylalanine hydroxylase Enzyme phenylalanine hydroxylase L-Phenylalanine hydroxylase Phenylalanine decarboxylase hydroxylase Phenylalanine hydroxylase and Phenylalanine hydroxylase cofactor Phenylalanine hydroxylase defect Phenylalanine hydroxylase deficiency Phenylalanine hydroxylase mechanism Phenylalanine hydroxylase mental retardation, cause Phenylalanine hydroxylase, properties Phenylketonuria Phenylalanine hydroxylase Pterin-dependent phenylalanine hydroxylase Rat liver phenylalanine hydroxylase