title: Extrinsic Cotton effect and helix-coil transition in a DNA-polycation complex.
mesh_terms: D002942:Circular Dichroism; D004247:DNA; D006358:Hot Temperature; D009690:Nucleic Acid Conformation; D009905:Optical Rotatory Dispersion; D011108:Polymers
chemical_list: D011108:Polymers; D004247:DNA