Reaction catalyzed by plant 4,4-dimethylsterol C-4alpha-methyl-monooxygenase (1.14.18.10)
+
6
+
3
+
6
=
+
6
+
4
H2O
parkeol
+
6 ferricytochrome b5
+
3 O2
+
6 H+
=
9(11)-dehydroergosterol
+
6 ferrocytochrome b5
+
4 H2O
