title: A circular dichroism study of the interaction of sodium and potassium ions with methionine-enkephalin.
mesh_terms: D002942:Circular Dichroism; D008715:Methionine; D008968:Molecular Conformation; D009842:Oligopeptides; D011188:Potassium; D012964:Sodium
chemical_list: D009842:Oligopeptides; D012964:Sodium; D008715:Methionine; D011188:Potassium