title: Regulation of transcription termination in the leader region of the tryptophan operon of Escherichia coli involves tryptophan or its metabolic product.
mesh_terms: D002874:Chromosome Mapping; D003090:Coliphages / Q000378:metabolism; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D004926:Escherichia coli / Q000378:metabolism*; D005796:Genes; D007532:Isoleucine / Q000378:metabolism; D007700:Kinetics; D009154:Mutation; D009693:Nucleic Acid Hybridization; D009876:Operon; D013045:Species Specificity; D014158:Transcription, Genetic; D014364:Tryptophan / Q000096:biosynthesis* / Q000378:metabolism
chemical_list: D007532:Isoleucine; D014364:Tryptophan; D012321:DNA-Directed RNA Polymerases