title: 15N spin-lattice relaxation study of linear peptides: preliminary results on Leu-enkephalin and Tyr-Gly-Gly-Phe.
mesh_terms: D004723:Endorphins; D004743:Enkephalin, Leucine; D004745:Enkephalins; D006860:Hydrogen Bonding; D009682:Magnetic Resonance Spectroscopy; D009587:Nitrogen Isotopes; D009842:Oligopeptides; D011487:Protein Conformation; D013696:Temperature; D013997:Time Factors
chemical_list: D004723:Endorphins; D004745:Enkephalins; D009587:Nitrogen Isotopes; D009842:Oligopeptides; D004743:Enkephalin, Leucine; C032272:tyrosyl-glycyl-glycyl-phenylalanyl