title: Initiation of transcription and the sequential synthesis of 16-S and 23-S ribosomal RNA in Escherichia coli.
mesh_terms: D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D003470:Culture Media; D004926:Escherichia coli / Q000187:drug effects / Q000378:metabolism*; D005796:Genes; D007700:Kinetics; D008433:Mathematics; D012335:RNA, Ribosomal / Q000096:biosynthesis*; D012293:Rifampin / Q000494:pharmacology; D013056:Spectrophotometry, Ultraviolet; D014158:Transcription, Genetic; D014498:Uracil / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D003470:Culture Media; D012335:RNA, Ribosomal; D014498:Uracil; D012293:Rifampin