11beta,17beta-dihydroxyandrost-4-ene-3-one + NAD(+) = 17beta-hydroxyandrost-4-ene-3,11-dione + NADH + H(+)
11beta,17beta-dihydroxyandrost-4-ene-3-one + nad(+) = 17beta-hydroxyandrost-4-ene-3,11-dione + nadh + h(+)
11beta,17beta-dihydroxyandrost-4-ene-3-one + NAD(+) = 17beta-hydroxyandrost-4-ene-3,11-dione + NADH + H(+)
11beta,17beta-dihydroxyandrost-4-ene-3-one + nad(+) = 17beta-hydroxyandrost-4-ene-3,11-dione + nadh + h(+)