title: NMR relaxation processes of 31P in macromolecules.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004247:DNA; D046911:Macromolecular Substances; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D009690:Nucleic Acid Conformation; D010758:Phosphorus; D011072:Poly U; D011487:Protein Conformation
chemical_list: D046911:Macromolecular Substances; D011072:Poly U; D010758:Phosphorus; D004247:DNA