a 3-oxosteroid + NADPH + H(+) => a 3alpha-hydroxysteroid + NADP(+)
a 3-oxosteroid + nadph + h(+) => a 3alpha-hydroxysteroid + nadp(+)
a 3-oxosteroid + NADPH + H(+) => a 3alpha-hydroxysteroid + NADP(+)
a 3-oxosteroid + nadph + h(+) => a 3alpha-hydroxysteroid + nadp(+)