MeSH definition : An enzymes that catalyzes the reversible reduction-oxidation reaction of 20-alpha-hydroxysteroids,
such as from PROGESTERONE to 20-ALPHA-DIHYDROPROGESTERONE.;
An enzymes that catalyzes the reversible reduction-oxidation reaction of 20-alpha-hydroxysteroids,
such as from PROGESTERONE to 20-ALPHA-DIHYDROPROGESTERONE.