3beta-hydroxy-Delta5-steroid dehydrogenase; progesterone reductase; Delta5-3beta-hydroxysteroid dehydrogenase; 3beta-hydroxy-5-ene steroid dehydrogenase; 3beta-hydroxy steroid dehydrogenase/isomerase; 3beta-hydroxy-Delta5-C27-steroid dehydrogenase/i • • •