title: Sequential steps in the in vivo assembly of the RNA bacteriophage fr.
mesh_terms: D001435:Bacteriophages / Q000378:metabolism*; D002499:Centrifugation, Density Gradient; D004926:Escherichia coli / Q000378:metabolism; D006639:Histidine / Q000378:metabolism; D007930:Leucine / Q000378:metabolism; D008025:Ligases; D009154:Mutation; D010759:Phosphorus Isotopes; D012333:RNA, Messenger; D012367:RNA, Viral / Q000096:biosynthesis*; D013489:Suppression, Genetic; D014316:Tritium; D014764:Viral Proteins / Q000096:biosynthesis*
chemical_list: D010759:Phosphorus Isotopes; D012333:RNA, Messenger; D012367:RNA, Viral; D014764:Viral Proteins; D014316:Tritium; D006639:Histidine; D008025:Ligases; D007930:Leucine