20alpha-hydroxy-5beta-pregnan-3-one + NADP(+) = 5beta-pregnan-3,20-dione + NADPH + H(+)
20alpha-hydroxy-5beta-pregnan-3-one + nadp(+) = 5beta-pregnan-3,20-dione + nadph + h(+)
20alpha-hydroxy-5beta-pregnan-3-one + NADP(+) = 5beta-pregnan-3,20-dione + NADPH + H(+)
20alpha-hydroxy-5beta-pregnan-3-one + nadp(+) = 5beta-pregnan-3,20-dione + nadph + h(+)