title: The interaction of closed circular DNA with intercalative dyes. 3. Dependence of the buoyant density upon superhelix density and base composition.
mesh_terms: D000595:Amino Acid Sequence; D001665:Binding Sites; D002499:Centrifugation, Density Gradient; D003016:Clostridium perfringens; D004396:Coloring Agents; D004247:DNA; D004269:DNA, Bacterial; D004279:DNA, Viral; D008433:Mathematics; D008837:Micrococcus; D008961:Models, Structural; D008967:Molecular Biology; D000644:Quaternary Ammonium Compounds; D011804:Quinolines; D014461:Ultracentrifugation
chemical_list: D004396:Coloring Agents; D004269:DNA, Bacterial; D004279:DNA, Viral; D000644:Quaternary Ammonium Compounds; D011804:Quinolines; D004247:DNA