title: Selective dissociation of free ribosomes of Escherichia coli by sodium ions.
mesh_terms: D002455:Cell Division; D002499:Centrifugation, Density Gradient; D004926:Escherichia coli / Q000187:drug effects*; D008274:Magnesium / Q000494:pharmacology; D010452:Peptide Biosynthesis; D011188:Potassium / Q000494:pharmacology; D012270:Ribosomes / Q000187:drug effects*; D012964:Sodium / Q000494:pharmacology*
chemical_list: D012964:Sodium; D008274:Magnesium; D011188:Potassium