title: A gel electrophoretic separation of bacterial ribosomal subunits with and without protein S1.
mesh_terms: D002458:Cell Fractionation / Q000379:methods; D004586:Electrophoresis / Q000379:methods; D004926:Escherichia coli / Q000648:ultrastructure*; D008970:Molecular Weight; D011132:Polyribosomes / Q000648:ultrastructure; D012269:Ribosomal Proteins / Q000032:analysis*; D012270:Ribosomes / Q000648:ultrastructure*
chemical_list: D012269:Ribosomal Proteins