title: Biosynthetic and semisynthetic rifamycins.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D012321:DNA-Directed RNA Polymerases / Q000037:antagonists & inhibitors; D005827:Genetics, Microbial; D012294:Rifamycins / Q000096:biosynthesis* / Q000138:chemical synthesis / Q000494:pharmacology; D013210:Staphylococcus / Q000187:drug effects; D014158:Transcription, Genetic / Q000187:drug effects
chemical_list: D012294:Rifamycins; D012321:DNA-Directed RNA Polymerases