Reaction catalyzed by 4-hydroxybenzoate 3-monooxygenase (1.14.13.2)
+
NADPH
+
=
+
+
NADP+
+
H2O
2,4-dihydroxybenzoate
+
NADPH
+
O2
=
2,3,4-trihydroxybenzoate
+
2,4,5-trihydroxybenzoate
+
NADP+
+
H2O
