title: Reduction of steroidal 20-oxo-21-oic acids to steroidal 20-beta-hydroxy-21-oic acids by 20beta-hydroxysteroid dehydrogenase.
mesh_terms: D015089:20-Hydroxysteroid Dehydrogenases / Q000378:metabolism*; D007664:Ketosteroids / Q000378:metabolism; D007700:Kinetics; D010084:Oxidation-Reduction; D013302:Streptomyces / Q000201:enzymology; D013379:Substrate Specificity
chemical_list: D007664:Ketosteroids; D015089:20-Hydroxysteroid Dehydrogenases