phenylalanine hydroxylase

noun

Phenylalanine hydroxylase (PAH) is an enzyme that catalyzes the hydroxylation of the aromatic side-chain of phenylalanine to generate tyrosine. Phenylalanine hydroxylase is one of three members of the biopterin-dependent aromatic amino acid hydroxylases.

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Meanings

nounphenylalanine hydroxylase (plural phenylalanine hydroxylases)

plural phenylalanine hydroxylases

  1. Phenylalanine hydroxylase (PAH) is an enzyme that catalyzes the hydroxylation of the aromatic side-chain of phenylalanine to generate tyrosine. Phenylalanine hydroxylase is one of three members of the biopterin-dependent aromatic amino acid hydroxylases.
Cite this entry
APA

phenylalanine hydroxylase. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/phenylalanine%20hydroxylase

MLA

“phenylalanine hydroxylase.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/phenylalanine%20hydroxylase. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “phenylalanine hydroxylase,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/phenylalanine%20hydroxylase.

Source: phenylalanine hydroxylase on Wiktionary, CC BY-SA 4.0.