title: (D-Ala2, N-Val5), (D-Ala2, Met5) enkephalins and enkephalinamides. Correlation between biological activity and NMR features.
mesh_terms: D000818:Animals; D001681:Biological Assay; D004723:Endorphins / Q000494:pharmacology*; D004744:Enkephalin, Methionine / Q000031:analogs & derivatives*; D004745:Enkephalins / Q000494:pharmacology*; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051379:Mice; D011487:Protein Conformation; D011957:Receptors, Opioid / Q000378:metabolism; D013329:Structure-Activity Relationship; D014649:Vas Deferens / Q000187:drug effects
chemical_list: D004723:Endorphins; D004745:Enkephalins; D011957:Receptors, Opioid; D004744:Enkephalin, Methionine; C022118:enkephalinamide-Met, Ala(2)-; C013801:enkephalin-Met, Ala(2)-; C031733:enkephalin, Ala(2)-Val(5)-; C031734:enkephalin, Ala(2)-ValNH2(5)-