title: Nucleotide sequence of the promoter--operator region of the tryptophan operon of Escherichia coli.
mesh_terms: D001483:Base Sequence; D004269:DNA, Bacterial; D004926:Escherichia coli / Q000235:genetics*; D009876:Operon; D012329:RNA, Bacterial; D014158:Transcription, Genetic; D014364:Tryptophan
chemical_list: D004269:DNA, Bacterial; D012329:RNA, Bacterial; D014364:Tryptophan