title: Physico-chemical and reassociation properties of E. coli ribosomal subunits.
mesh_terms: D002499:Centrifugation, Density Gradient; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000166:cytology*; D008970:Molecular Weight; D012335:RNA, Ribosomal; D012270:Ribosomes; D013696:Temperature
chemical_list: D012335:RNA, Ribosomal