Reaction catalyzed by 25/26-hydroxycholesterol 7alpha-hydroxylase (1.14.14.29)
+
NADPH
+
+
=
+
NADP+
+
H2O
dehydroepiandrosterone
+
NADPH
+
H+
+
o2
=
7alpha-hydroxy-dehydroepiandrosterone
+
NADP+
+
H2O
