ID 1.1.1.213 DE 3-alpha-hydroxysteroid dehydrogenase (A-specific). CA Androsterone + NAD(P)(+) = 5-alpha-androstane-3,17-dione + NAD(P)H. CC -!- Also acts on other 3-alpha-hydroxysteroids. CC -!- A-specific with respect to NAD(+) or NADP(+) (cf. EC 1.1.1.50). DR P52895, AK1C2_HUMAN; P42330, AK1C3_HUMAN; Q5R7C9, AK1C3_PONAB; DR P23457, DIDH_RAT ; //