Reaction catalyzed by cholestanetriol 26-monooxygenase (1.14.15.15)
+
4
reduced adrenodoxin
+
2
+
2
=
+
+
4
oxidzed adrenodoxin
+
2
H2O
7-dehydrocholesterol
+
4 reduced adrenodoxin
+
2 H+
+
2 O2
=
25-hydroxy-7-dehydrocholesterol
+
26/27-hydroxy-7-dehydrocholesterol
+
4 oxidzed adrenodoxin
+
2 H2O
