title: Synthesis of tryptophan operon RNA in a cell-free system.
mesh_terms: D000604:Amino Acyl-tRNA Synthetases / Q000378:metabolism; D002474:Cell-Free System; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D004926:Escherichia coli / Q000378:metabolism*; D005809:Genes, Regulator / Q000187:drug effects; D007700:Kinetics; D009154:Mutation; D009693:Nucleic Acid Hybridization; D009876:Operon; D012329:RNA, Bacterial / Q000032:analysis / Q000096:biosynthesis*; D012343:RNA, Transfer / Q000378:metabolism; D014158:Transcription, Genetic / Q000187:drug effects; D014316:Tritium; D014364:Tryptophan / Q000096:biosynthesis* / Q000494:pharmacology
chemical_list: D012329:RNA, Bacterial; D014316:Tritium; D014364:Tryptophan; D012343:RNA, Transfer; D012321:DNA-Directed RNA Polymerases; D000604:Amino Acyl-tRNA Synthetases