Pyridoxine 5’-phosphate oxidaseの英語

Pyridoxine 5’-phosphate oxidase is an enzyme that catalyzes several reactions in the vitamin B6 metabolism pathway. Pyridoxine-5-P oxidase catalyzes the terminal step (also the rate-limiting step) in vitamin B₆ metabolism, the biosynthesis of pyridoxal-5’-phosphate, the biologically active form of vitamin B₆ which acts as an essential cofactor. Pyridoxine 5’-phosphate oxidase is a member of the enzyme class oxidases, or more specifically, oxidoreductases. These enzymes catalyze a simultaneous oxidation-reduction reaction. The substrate oxidase enzymes is hydroxlyated by one oxygen atom of molecular oxygen. Concurrently, the other oxygen atom is reduced to water. Even though molecular oxygen is the electron acceptor in these enzymes’ reactions, they are unique because oxygen does not appear in the oxidized product.