. "Acts on other 3-alpha-hydroxysteroids and on 9-, 11-and 15-hydroxyprostaglandin." . "B-specific with respect to NAD(+) or NADP(+) (cf. EC 1.1.1.213)." . . . "3-alpha-HSD" . "Hydroxyprostaglandin dehydrogenase" . "3-alpha-hydroxysteroid dehydrogenase (B-specific)" . "Androsterone + NAD(P)(+) = 5-alpha-androstane-3,17-dione + NAD(P)H." .