title: Biphasic helix-coil transition of the ethidium bromide-poly (dA-dT) and the propidium diiodide - poly (dA-dT) complexes. Stabilization of base-pair regions centered about the intercalation site.
mesh_terms: D001665:Binding Sites; D004996:Ethidium; D007454:Iodides; D009682:Magnetic Resonance Spectroscopy; D009690:Nucleic Acid Conformation; D011067:Poly dA-dT; D011089:Polydeoxyribonucleotides
chemical_list: D007454:Iodides; D011089:Polydeoxyribonucleotides; D011067:Poly dA-dT; D004996:Ethidium