title: A carbon-13 magnetic resonance study of the helix-coil transition in polyuridylic acid.
mesh_terms: D000042:Absorption; D002247:Carbon Isotopes; D002942:Circular Dichroism; D007553:Isotope Labeling; D008027:Light; D009682:Magnetic Resonance Spectroscopy; D008722:Methods; D011072:Poly U / Q000032:analysis*; D011487:Protein Conformation; D012542:Scattering, Radiation; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature
chemical_list: D002247:Carbon Isotopes; D011072:Poly U