ID 1.1.1.151 DE 21-hydroxysteroid dehydrogenase (NADP(+)). AN 21-hydroxy steroid (nicotinamide adenine dinucleotide phosphate) AN dehydrogenase. AN 21-hydroxy steroid dehydrogenase. AN 21-hydroxy steroid dehydrogenase (nicotinamide adenine dinucleotide AN phosphate). AN NADP-21-hydroxysteroid dehydrogenase. CA NADP(+) + pregnan-21-ol = H(+) + NADPH + pregnan-21-al. CC -!- Acts on a number of 21-hydroxycorticosteroids. //