An enzyme that catalyzes the reduction of a 3 beta-hydroxy-delta(5)-steroid to 3-oxo-delta(4)-steroid in the presence of NAD. It converts pregnenolone to progesterone and dehydroepiandrosterone to androstenedione. EC 1.1.1.145.
Also Known As:
5-Ene-3 beta-hydroxysteroid Dehydrogenase; Steroid delta(5)-3 beta-ol Dehydrogenase; 3 beta Hydroxy delta 5 Steroid Dehydrogenase; 5 Ene 3 beta hydroxysteroid Dehydrogenase; Dehydrogenase, 3 beta-Hydroxy-delta-5-Steroid; Dehydrogenase, 5-Ene-3 beta-hydroxysteroid; Reductase, Progesterone; 3 beta-Hydroxy-delta-5-Steroid Dehydrogenase; 3 beta-Hydroxy-delta(5)-steroid:NAD+ 3-oxidoreductase