The mechanism of microbial conversion of cholesterol into  17-keto steroids.
D015068:17-Ketosteroids / Q000096:biosynthesis*; D002247:Carbon Isotopes; D055598:Chemical Phenomena; D002621:Chemistry; D002784:Cholesterol / Q000378:metabolism*; D009615:Nocardia / Q000378:metabolism*
D015068:17-Ketosteroids; D002247:Carbon Isotopes; D002784:Cholesterol