title: Identification of trp-p2, an internal promoter in the tryptophan operon of Escherichia coli.
mesh_terms: D001483:Base Sequence; D004586:Electrophoresis; D004926:Escherichia coli / Q000235:genetics*; D005796:Genes; D005798:Genes, Bacterial; D009876:Operon; D014158:Transcription, Genetic; D014364:Tryptophan / Q000235:genetics*
chemical_list: D014364:Tryptophan