title: Preparation of ribosomal subunits by large-scale zonal centrifugation.
mesh_terms: D002501:Centrifugation, Zonal / Q000295:instrumentation; D003956:Dialysis; D004926:Escherichia coli / Q000166:cytology; D005069:Evaluation Studies as Topic; D006863:Hydrogen-Ion Concentration; D008274:Magnesium; D008722:Methods; D009994:Osmolar Concentration; D012270:Ribosomes; D013056:Spectrophotometry, Ultraviolet
chemical_list: D008274:Magnesium