title: A 31P NMR analysis of the helix to coil transition of natural DNA samples: evidence for the existence of different conformational states.
mesh_terms: D000818:Animals; D002417:Cattle; D004247:DNA; D005583:Fourier Analysis; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D009690:Nucleic Acid Conformation; D012474:Salmon; D013094:Spermatozoa; D013950:Thymus Gland
chemical_list: D004247:DNA