Dependence of initiation factor IF-2 activity on proteins L7 and L12 from Escherichia coli 50 S ribosomes.

Bacterial Proteins/isolation & purification,pharmacology Binding Sites Carbon Radioisotopes Centrifugation, Density Gradient Chemical Precipitation Electrophoresis, Polyacrylamide Gel Escherichia coli/cytology,drug effects,metabolism Ethanol Formates/metabolism Guanosine Triphosphate/metabolism Methionine/metabolism Peptide Biosynthesis Peptide Initiation Factors Phenylalanine/metabolism Phosphorus Radioisotopes Protein Binding RNA, Transfer/metabolism Ribosomes/drug effects,metabolism Urea

Bacterial Proteins Carbon Radioisotopes Formates Peptide Initiation Factors Phosphorus Radioisotopes Ethanol Phenylalanine Guanosine Triphosphate Urea RNA, Transfer Methionine