Dopamine - beta -
hydroxylase requires ascorbic acid and copper as cofactors.
Not exact matches
Next there's a study which found that calcium is
required for activating tryptophan
hydroxylase, which manufactures serotonin.
Koch discusses the enzyme deficiency: «Phenylketonuria (PKU) is caused by an autosomal recessive defect in the enzyme phenylalanine
hydroxylase, which is
required for converting phenylalanine to tyrosine.