Reaction catalyzed by DELTA7-sterol 5(6)-desaturase (1.14.19.20)
+
+
=
+
+
5alpha-ergost-7,24(241)-dien-3beta-ol
+
O2
+
ferrocytochrome b5
=
ergosta-5,7,24(241)-trien-3beta-ol
+
H2O2
+
ferricytochrome b5
