Stages in phage R17 infection. VI. Injection of A protein and RNA into the host cell.

Amino Acids Carbon Isotopes Cell-Free System Centrifugation, Density Gradient Coliphages/analysis Electrophoresis, Disc Escherichia coli Histidine Molecular Weight Peptides/analysis Phosphates Phosphorus Isotopes RNA, Viral Solvents Sucrose Trichloroacetic Acid Tritium Viral Proteins/analysis

Amino Acids Carbon Isotopes Peptides Phosphates Phosphorus Isotopes RNA, Viral Solvents Viral Proteins Tritium Histidine Sucrose Trichloroacetic Acid