ID 1.1.1.147 DE 16alpha-hydroxysteroid dehydrogenase. CA (1) a 16alpha-hydroxysteroid + NADP(+) = a 16-oxosteroid + H(+) + NADPH. CA (2) a 16alpha-hydroxysteroid + NAD(+) = a 16-oxosteroid + H(+) + NADH. //