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