title: Ribosomal proteins. Isolation of proteins from 50S ribosomal subunits of Escherichia coli.
mesh_terms: D000645:Ammonium Sulfate; D001426:Bacterial Proteins / Q000302:isolation & purification*; D002501:Centrifugation, Zonal; D011232:Chemical Precipitation; D002712:Chlorides / Q000494:pharmacology; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D004589:Electrophoresis, Disc; D004926:Escherichia coli / Q000166:cytology; D008094:Lithium / Q000494:pharmacology; D012270:Ribosomes / Q000187:drug effects; D014508:Urea / Q000494:pharmacology
chemical_list: D001426:Bacterial Proteins; D002712:Chlorides; D014508:Urea; D008094:Lithium; D000645:Ammonium Sulfate