title: Identity of dihydrodiol dehydrogenase and 3 alpha-hydroxysteroid dehydrogenase in rat but not in rabbit liver cytosol.
abstract: Dihydrodiol dehydrogenase and 3 alpha-hydroxysteroid dehydrogenase activity in rat and rabbit liver cytosol have been analyzed by isoelectric focussing and subsequent activity staining. Identity of the two enzymes in rat liver cytosol is demonstrated. At least 4 main enzyme forms possessing dihydrodiol dehydrogenase activity can be detected in rabbit liver cytosol. However, in this species, only one of these forms has measurable activity towards 3 alpha-hydroxysteroids.
mesh_terms: D015096:3-Hydroxysteroid Dehydrogenases / Q000378:metabolism*; D045002:3-alpha-Hydroxysteroid Dehydrogenase (B-Specific); D000429:Alcohol Oxidoreductases / Q000037:antagonists & inhibitors / Q000378:metabolism*; D000818:Animals; D003600:Cytosol / Q000201:enzymology; D007525:Isoelectric Focusing; D008099:Liver / Q000201:enzymology*; D008297:Male; D008525:Medroxyprogesterone / Q000031:analogs & derivatives / Q000494:pharmacology; D017258:Medroxyprogesterone Acetate; D010088:Oxidoreductases; D044925:Oxidoreductases Acting on CH-CH Group Donors; D011817:Rabbits; D051381:Rats; D011919:Rats, Inbred Strains; D013045:Species Specificity; D013194:Staining and Labeling; D013379:Substrate Specificity
chemical_list: D017258:Medroxyprogesterone Acetate; D010088:Oxidoreductases; D015096:3-Hydroxysteroid Dehydrogenases; D000429:Alcohol Oxidoreductases; C023125:dihydrodiol dehydrogenases; D045002:3-alpha-Hydroxysteroid Dehydrogenase (B-Specific); D044925:Oxidoreductases Acting on CH-CH Group Donors; C116788:cis-1,2-dihydro-1,2-dihydroxynaphthalene dehydrogenase; D008525:Medroxyprogesterone