Essential Biochemistry - Protein Metabolism (Section 1 - No. 19)

Which enzyme is involved in the conversion of phenylalanine to tyrosine?

Phenylalanine hydroxylase

Tyrosine aminotransferase

Tryptophan hydroxylase

Homogentisate dioxygenase

Phenylalanine hydroxylase catalyzes the first step in phenylalanine metabolism, converting it to tyrosine.