title: Preparation of free and membrane-bound polysomes from Escherichia coli.
mesh_terms: D002458:Cell Fractionation / Q000379:methods; D002462:Cell Membrane / Q000648:ultrastructure; D002499:Centrifugation, Density Gradient / Q000379:methods; D004926:Escherichia coli / Q000235:genetics / Q000648:ultrastructure*; D011132:Polyribosomes / Q000378:metabolism / Q000648:ultrastructure*; D014176:Protein Biosynthesis; D012333:RNA, Messenger / Q000302:isolation & purification
chemical_list: D012333:RNA, Messenger