title: Normal repression in a deletion mutant lacking almost the entire operator-proximal gene of the tryptophan operon of E. coli.
mesh_terms: D001345:Autoradiography; D004794:Enzyme Repression; D004926:Escherichia coli / Q000187:drug effects / Q000378:metabolism*; D005809:Genes, Regulator; D005815:Genetic Code; D009154:Mutation; D009693:Nucleic Acid Hybridization; D009876:Operon; D012333:RNA, Messenger / Q000032:analysis / Q000096:biosynthesis; D012293:Rifampin / Q000494:pharmacology; D014316:Tritium; D014364:Tryptophan / Q000096:biosynthesis* / Q000494:pharmacology; D014367:Tryptophan Synthase / Q000096:biosynthesis; D014529:Uridine / Q000378:metabolism
chemical_list: D012333:RNA, Messenger; D014316:Tritium; D014364:Tryptophan; D014367:Tryptophan Synthase; D012293:Rifampin; D014529:Uridine