title: Further analysis of the altered secondary structure of superhelical DNA. Sensitivity to methylmercuric hydroxide a chemical probe for unpaired bases.
mesh_terms: D001435:Bacteriophages / Q000032:analysis; D001665:Binding Sites; D003201:Computers; D004279:DNA, Viral / Q000032:analysis*; D004996:Ethidium; D005557:Formaldehyde; D007700:Kinetics; D008433:Mathematics; D008767:Methylmercury Compounds; D009690:Nucleic Acid Conformation; D009691:Nucleic Acid Denaturation; D011549:Pseudomonas; D013056:Spectrophotometry, Ultraviolet; D014461:Ultracentrifugation
chemical_list: D004279:DNA, Viral; D008767:Methylmercury Compounds; D005557:Formaldehyde; D004996:Ethidium