title: Hyper-labile messenger RNA in polar mutants of the tryptophan operon of Escherichia coli.
mesh_terms: D003090:Coliphages; D004269:DNA, Bacterial; D004279:DNA, Viral; D004926:Escherichia coli; D005796:Genes; D005815:Genetic Code; D009154:Mutation; D009693:Nucleic Acid Hybridization; D009876:Operon; D012329:RNA, Bacterial; D012333:RNA, Messenger; D014158:Transcription, Genetic; D014316:Tritium; D014364:Tryptophan
chemical_list: D004269:DNA, Bacterial; D004279:DNA, Viral; D012329:RNA, Bacterial; D012333:RNA, Messenger; D014316:Tritium; D014364:Tryptophan