. "Catalysis of the reaction: estradiol-17-beta + NADP+ = estrone + NADPH + H+." . . "estradiol 17-beta-dehydrogenase activity" . "17beta-HSD" . "20alpha-hydroxysteroid dehydrogenase" . "17-beta-estradiol dehydrogenase activity" . "17-beta-HSD activity" . "17-beta-hydroxysteroid dehydrogenase activity" . "17beta,20alpha-hydroxysteroid dehydrogenase activity" . "17beta-estradiol dehydrogenase activity" . "17beta-hydroxysteroid dehydrogenase activity" . "estradiol 17beta-dehydrogenase activity" . "estradiol dehydrogenase activity" . "estradiol-17beta:NAD(P)+ 17-oxidoreductase activity" . "estrogen 17-oxidoreductase activity" . . .