the expressed protein was similar in size to human placental microsomal 3 beta-hydroxysteroid dehydrogenase/delta 5 -- -- 4isomerase , as detected by immunoblot analysis , and catalyzed the conversion of 17 alpha-hydroxypregnenolone to 17 alpha-hydroxyprogesterone , pregnenolone to progesterone , and dehydroepiandrosterone to androstenedione .
C0376260
17
C0373704
pregnenolone