Reaction catalyzed by steroid 9alpha-monooxygenase (1.14.99.24)
+
2
+
2
=
+
1,4-androstadiene-3,17-dione
+
2 O2
+
2 H+
=
9-hydroxy-1,4-androstadiene-3,17-dione
+
H2O2
