EC 1.14.16.1 L-PHENYLALANINE,TETRAHYDROBIOPTERIN:OXYGEN OXIDOREDUCTASE (4-HYDROXYLATING)

: phenylalanine 4-monooxygenase , phenylalaninase , phenylalanine 4-hydroxylase

: L-PHENYLALANINE + TETRAHYDROBIOPTERIN + O2 =

L-TYROSINE + DIHYDROBIOPTERIN + H2O

(The mammalian enzyme is an ironprotein , formerly EC 1.14.3.1 and EC 1.99.1.2 )

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