ID 1.14.14.9 DE 4-hydroxyphenylacetate 3-monooxygenase. AN 4 HPA 3-hydroxylase. AN 4-hydroxyphenylacetic acid-3-hydroxylase. AN p-hydroxyphenylacetate 3-hydroxylase. CA 4-hydroxyphenylacetate + FADH2 + O2 = 3,4-dihydroxyphenylacetate + FAD + CA H(+) + H2O. CC -!- The enzyme from Escherichia coli attacks a broad spectrum of phenolic CC compounds. CC -!- The enzyme uses FADH2 as a substrate rather than a cofactor. CC -!- FADH2 is provided by EC 1.5.1.36. CC -!- Formerly EC 1.14.13.3. DR Q57160, HPAB_ECOLX ; Q48440, HPAB_KLEOX ; Q9HWT7, HPAB_PSEAE ; DR Q5SJP8, HPAB_THET8 ; Q6Q272, HPAH_ACIBA ; Q4L1M7, HPAH_GEOP9 ; DR A4IT51, HPAH_GEOTN ; C0SPC0, YOAI_BACSU ; //