title: Sedimentation velocity behavior of closed circular SV40 DNA as a function of superhelix density, ionic strength, counterion and temperature.
mesh_terms: D000643:Ammonium Chloride; D001483:Base Sequence; D002499:Centrifugation, Density Gradient; D002586:Cesium; D004279:DNA, Viral; D007477:Ions; D008854:Microscopy, Electron; D008967:Molecular Biology; D009690:Nucleic Acid Conformation; D011804:Quinolines; D013539:Simian virus 40; D012965:Sodium Chloride; D013696:Temperature; D014461:Ultracentrifugation
chemical_list: D004279:DNA, Viral; D007477:Ions; D011804:Quinolines; D000643:Ammonium Chloride; D002586:Cesium; D012965:Sodium Chloride