title: Initiation sites for in vitro transcription of the tryptophan operon.
mesh_terms: D001665:Binding Sites; D003090:Coliphages / Q000378:metabolism*; D004267:DNA Viruses / Q000378:metabolism; D004279:DNA, Viral / Q000378:metabolism; D012321:DNA-Directed RNA Polymerases / Q000302:isolation & purification / Q000378:metabolism; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000378:metabolism*; D005796:Genes; D007700:Kinetics; D008274:Magnesium / Q000494:pharmacology; D008970:Molecular Weight; D009693:Nucleic Acid Hybridization; D009876:Operon; D010761:Phosphorus Radioisotopes; D012329:RNA, Bacterial / Q000096:biosynthesis; D012293:Rifampin / Q000494:pharmacology; D013698:Templates, Genetic; D013997:Time Factors; D014158:Transcription, Genetic; D014316:Tritium; D014364:Tryptophan / Q000096:biosynthesis*
chemical_list: D004279:DNA, Viral; D010761:Phosphorus Radioisotopes; D012329:RNA, Bacterial; D014316:Tritium; D014364:Tryptophan; D012321:DNA-Directed RNA Polymerases; D008274:Magnesium; D012293:Rifampin