title: Immediate cessation of transcription of the operator-proximal region of the tryptophan operon in E. coli after repression of the operon.
mesh_terms: D001426:Bacterial Proteins / Q000096:biosynthesis*; D004926:Escherichia coli / Q000378:metabolism*; D005796:Genes; D005809:Genes, Regulator; D005815:Genetic Code; D005827:Genetics, Microbial; D009154:Mutation; D012329:RNA, Bacterial / Q000096:biosynthesis; D012333:RNA, Messenger / Q000096:biosynthesis; D012270:Ribosomes / Q000378:metabolism; D014364:Tryptophan / Q000378:metabolism*
chemical_list: D001426:Bacterial Proteins; D012329:RNA, Bacterial; D012333:RNA, Messenger; D014364:Tryptophan