title: A model for transcription termination suggested by studies on the trp attenuator in vitro using base analogs.
mesh_terms: D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D004926:Escherichia coli / Q000235:genetics; D006860:Hydrogen Bonding; D008954:Models, Biological; D009690:Nucleic Acid Conformation; D009876:Operon; D012234:Rho Factor / Q000502:physiology; D012265:Ribonucleotides / Q000378:metabolism; D013329:Structure-Activity Relationship; D013696:Temperature; D014158:Transcription, Genetic; D014364:Tryptophan / Q000235:genetics*
chemical_list: D012234:Rho Factor; D012265:Ribonucleotides; D014364:Tryptophan; D012321:DNA-Directed RNA Polymerases