4-Hydroxybenzoate-3-Monooxygenase

**Definition:** A flavoprotein that catalyzes the synthesis of protocatechuic acid from 4-hydroxybenzoate in the presence of molecular oxygen. EC 1.14.13.2.

**Tree numbers:** - D08.811.682.690.708.425

**Synonyms:** - para-Hydroxybenzoate Hydroxylase - p-Hydroxybenzoate Hydroxylase