Reaction catalyzed by 3alpha-hydroxysteroid 3-dehydrogenase (Re-specific) (1.1.1.213)
+
NADPH
+
=
+
NADP+
7alpha,12alpha-dihydroxy-5beta-cholestan-3-one
+
NADPH
+
H+
=
5beta-cholestane-3alpha,7alpha,12alpha-triol
+
NADP+
