Reaction catalyzed by 4-hydroxyphenylacetate 3-monooxygenase (1.14.14.9)
+
NADH
+
=
+
NAD+
+
H2O
3-hydroxyphenylacetate
+
NADH
+
O2
=
3,4-hydroxyphenylacetate
+
NAD+
+
H2O
