Essential Biochemistry - Protein Metabolism (Section 3 - No. 32)
Which of the following enzyme is deficient in PKU?
Tyrosine hydroxylase
Phenylalanine hydroxylase
Tryptophan hydroxylase
Homogentisate dioxygenase
Explanation
Phenylalanine hydroxylase is deficient in PKU, preventing the conversion of phenylalanine to tyrosine.
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