Reaction catalyzed by cholesterol monooxygenase (side-chain-cleaving) (1.14.15.6)
+
2
reduced adrenodoxin
+
+
2
=
+
+
2
+
2
H2O
(20R,22R)-20,22-dihydroxy-cholesterol
+
2 reduced adrenodoxin
+
O2
+
2 H+
=
pregnenolone
+
4-methylpentanal
+
2 oxidized adrenodoxin
+
2 H2O
