title: 3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione 4,5-dioxygenase from Nocardia restrictus. I. Isolation of the enzyme and study of its physical and chemical properties.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000731:Androstanes; D002396:Catechols; D002614:Chelating Agents; D002850:Chromatography, Gel; D003553:Cystine / Q000032:analysis; D004058:Diffusion; D049308:Dioxygenases; D004589:Electrophoresis, Disc; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000032:analysis; D008970:Molecular Weight; D009615:Nocardia / Q000201:enzymology*; D010105:Oxygenases / Q000032:analysis / Q000037:antagonists & inhibitors / Q000302:isolation & purification*; D010618:Phenanthrolines; D011726:Pyridinium Compounds; D011804:Quinolines; D012632:Secosteroids; D013053:Spectrophotometry; D013438:Sulfhydryl Compounds / Q000037:antagonists & inhibitors; D014461:Ultracentrifugation; D014466:Ultraviolet Rays
chemical_list: D000596:Amino Acids; D000731:Androstanes; D002396:Catechols; D002614:Chelating Agents; D010618:Phenanthrolines; D011726:Pyridinium Compounds; D011804:Quinolines; D012632:Secosteroids; D013438:Sulfhydryl Compounds; D003553:Cystine; D007501:Iron; D010105:Oxygenases; D049308:Dioxygenases; C020058:3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione 4,5-dioxygenase