title: The operon revisited.
mesh_terms: D001665:Binding Sites; D002876:Chromosomes, Bacterial; D000242:Cyclic AMP / Q000378:metabolism; D004269:DNA, Bacterial / Q000032:analysis; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D004790:Enzyme Induction; D004794:Enzyme Repression; D004926:Escherichia coli; D005246:Feedback; D005796:Genes; D005809:Genes, Regulator; D005815:Genetic Code; D009154:Mutation; D009876:Operon; D012329:RNA, Bacterial / Q000096:biosynthesis; D012333:RNA, Messenger / Q000096:biosynthesis; D012343:RNA, Transfer / Q000096:biosynthesis; D012486:Salmonella typhimurium
chemical_list: D004269:DNA, Bacterial; D012329:RNA, Bacterial; D012333:RNA, Messenger; D012343:RNA, Transfer; D000242:Cyclic AMP; D012321:DNA-Directed RNA Polymerases