title: Characterization of a 43 s ribonucleoprotein component of a mutant of Escherichia coli.
mesh_terms: D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D004586:Electrophoresis; D004926:Escherichia coli / Q000032:analysis*; D008274:Magnesium; D009154:Mutation; D009698:Nucleoproteins / Q000032:analysis*; D012329:RNA, Bacterial / Q000032:analysis*; D012260:Ribonucleases; D013307:Streptomycin; D014529:Uridine / Q000378:metabolism
chemical_list: D002247:Carbon Isotopes; D009698:Nucleoproteins; D012329:RNA, Bacterial; D012260:Ribonucleases; D008274:Magnesium; D014529:Uridine; D013307:Streptomycin