Biosynthesis of ribosomes in E. coli. I. Properties of ribosomal precursor particles and their RNA components.

Centrifugation, Density Gradient Chromatography Electrophoresis, Disc Escherichia coli/analysis,growth & development Hybridization, Genetic Magnesium Molecular Weight Nucleoproteins/analysis,isolation & purification Nucleotides/analysis Phosphorus Isotopes RNA, Bacterial/isolation & purification Ribonucleases Ribosomes Tritium Uracil/metabolism

Nucleoproteins Nucleotides Phosphorus Isotopes RNA, Bacterial Tritium Uracil Ribonucleases Magnesium