Compound as reactive (1)
allopregnanolone + NADP+ ← NADPH + H+ + 5-α-pregnane-3,20-dione
Compound as product (2)
NADP+ + 5-α-pregnane-3,20-dione ← progesterone + NADPH + H+
allopregnanolone + NAD+ → NADH + H+ + 5-α-pregnane-3,20-dione
Reversible reaction (1)
NAD(P)+ + allopregnanolone ↔ NAD(P)H + H+ + 5-α-pregnane-3,20-dione