title: Ribosomal proteins. XLIV. A simple procedure for prefractionation of proteins from Escherichia coli 70S ribosomes and from 30S and 50S subunits.
mesh_terms: D000085:Acetates; D001426:Bacterial Proteins / Q000032:analysis / Q000302:isolation & purification*; D002458:Cell Fractionation; D002498:Centrifugation; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000032:analysis*; D005069:Evaluation Studies as Topic; D006863:Hydrogen-Ion Concentration; D008274:Magnesium; D012270:Ribosomes / Q000032:analysis*
chemical_list: D000085:Acetates; D001426:Bacterial Proteins; D008274:Magnesium