Reaction catalyzed by 3-oxo-5alpha-steroid 4-dehydrogenase (NADP+) (1.3.1.22) show all sequences for 1.3.1.22
+
NADPH
=
17alpha,21-dihydroxypregn-4-ene-3,20-dione
+
NADPH
=
17alpha,21-dihydroxy-5alpha-pregnane-3,20-dione