title: Precursor 16S RNA in active 30S ribosomes.
mesh_terms: D002250:Carbon Radioisotopes; D002499:Centrifugation, Density Gradient; D003090:Coliphages; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000378:metabolism; D007700:Kinetics; D008970:Molecular Weight; D011132:Polyribosomes / Q000378:metabolism; D012335:RNA, Ribosomal / Q000032:analysis / Q000096:biosynthesis*; D012367:RNA, Viral / Q000378:metabolism; D012270:Ribosomes / Q000378:metabolism*; D014316:Tritium; D014498:Uracil / Q000378:metabolism
chemical_list: D002250:Carbon Radioisotopes; D012335:RNA, Ribosomal; D012367:RNA, Viral; D014316:Tritium; D014498:Uracil