The 20 alpha-hydroxysteroid dehydrogenase of Streptomyces hydrogenans. 1988

R L Rimsay, and G W Murphy, and C J Martin, and J C Orr
Faculty of Medicine, Health Sciences Centre, Memorial University of Newfoundland, St. John's, Canada.

In addition to the well-known 3 alpha,20 beta-hydroxysteroid dehydrogenase ('cortisone reductase'), Streptomyces hydrogenans produces a relatively stable, NAD-dependent 20 alpha-hydroxysteroid dehydrogenase of molecular mass approximately 48 kDa. This enzyme catalyzes the transfer of hydrogen from the 4-pro-S position of NADH.

UI MeSH Term Description Entries
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D009243 NAD A coenzyme composed of ribosylnicotinamide 5'-diphosphate coupled to adenosine 5'-phosphate by pyrophosphate linkage. It is found widely in nature and is involved in numerous enzymatic reactions in which it serves as an electron carrier by being alternately oxidized (NAD+) and reduced (NADH). (Dorland, 27th ed) Coenzyme I,DPN,Diphosphopyridine Nucleotide,Nadide,Nicotinamide-Adenine Dinucleotide,Dihydronicotinamide Adenine Dinucleotide,NADH,Adenine Dinucleotide, Dihydronicotinamide,Dinucleotide, Dihydronicotinamide Adenine,Dinucleotide, Nicotinamide-Adenine,Nicotinamide Adenine Dinucleotide,Nucleotide, Diphosphopyridine
D002384 Catalysis The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction. Catalyses
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs
D006859 Hydrogen The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas. Protium,Hydrogen-1
D013302 Streptomyces A genus of bacteria that form a nonfragmented aerial mycelium. Many species have been identified with some being pathogenic. This genus is responsible for producing a majority of the ANTI-BACTERIAL AGENTS of practical value.
D015089 20-Hydroxysteroid Dehydrogenases A group of enzymes that catalyze the reversible reduction-oxidation reaction of 20-hydroxysteroids, such as from a 20-ketosteroid to a 20-alpha-hydroxysteroid (EC 1.1.1.149) or to a 20-beta-hydroxysteroid (EC 1.1.1.53). 20 Hydroxysteroid Dehydrogenases,Dehydrogenases, 20 Hydroxysteroid,Dehydrogenases, 20-Hydroxysteroid,Hydroxysteroid Dehydrogenases, 20
D043607 20-alpha-Hydroxysteroid Dehydrogenase An enzymes that catalyzes the reversible reduction-oxidation reaction of 20-alpha-hydroxysteroids, such as from PROGESTERONE to 20-ALPHA-DIHYDROPROGESTERONE. 17 beta, 20 alpha-Hydroxysteroid Dehydrogenase,20 alpha-Hydroxysteroid Dehydrogenase,20-alpha-HSD,NADPH-Dependent 20 alpha-Hydroxysteroid Oxidoreductase,17 beta, 20 alpha Hydroxysteroid Dehydrogenase,20 alpha HSD,20 alpha Hydroxysteroid Dehydrogenase,NADPH Dependent 20 alpha Hydroxysteroid Oxidoreductase

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