title: Functional analysis of wild=type and altered tryptophan operon promoters of Salmonella typhimurium in Escherichia coli.
mesh_terms: D001483:Base Sequence; D004269:DNA, Bacterial; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D003854:Deoxyribonucleotides / Q000032:analysis; D004926:Escherichia coli / Q000235:genetics*; D007700:Kinetics; D009154:Mutation; D009876:Operon; D010957:Plasmids; D012329:RNA, Bacterial; D012486:Salmonella typhimurium / Q000235:genetics*; D014158:Transcription, Genetic; D014364:Tryptophan
chemical_list: D004269:DNA, Bacterial; D003854:Deoxyribonucleotides; D012329:RNA, Bacterial; D014364:Tryptophan; D012321:DNA-Directed RNA Polymerases