3-Oxo-5-alpha-Steroid 4-Dehydrogenase

**Definition:** An enzyme that catalyzes the reduction of TESTOSTERONE to 5-ALPHA DIHYDROTESTOSTERONE.

**Tree numbers:** - D08.811.682.660.465

**Synonyms:** - delta4-3-ketosteroid 5alpha-Oxidoreductase - Steroid delta-4-5-alpha Reductase - Testosterone 5-alpha-Reductase - Testosterone delta-4-5-alpha-Reductase - 3-Keto-5-alpha-Steroid delta-4-Dehydrogenase - 4-Ene-3-Oxosteroid-5alpha-Reductase - 4-Ene-5-alpha-Reductase - 5-alpha-Reductase, Testosterone - delta(4)-3-Ketosteroid-5alpha-Reductase - NADH-5-alpha-Reductase - NADPH delta(4)-3-Ketosteroid 5 alpha-Oxidoreductase - Steroid 5-alpha-Reductase - Steroid 5Alpha Reductase - 3-oxo-5 alpha-Steroid 4-Dehydrogenase (NADP+) - delta 4-3-keto Steroid 5 alpha-Oxidoreductase - 3-oxo-5alpha-Steroid 4-Dehydrogenase (NADP+)