Reaction catalyzed by cholesterol 7-desaturase (1.14.19.21)
+
+
NADH
+
=
+
NAD+
+
H2O
5alpha-cholest-22-en-3beta-ol
+
O2
+
NADH
+
H+
=
5alpha-cholesta-7,22-dien-3beta-ol
+
NAD+
+
H2O
