title: Binding of copper (II) by ribonuclease A and ribonuclease S-peptide investigated by  1 H nuclear magnetic resonance spectroscopy.
mesh_terms: D001665:Binding Sites; D003300:Copper; D003903:Deuterium; D006639:Histidine; D009682:Magnetic Resonance Spectroscopy; D008433:Mathematics; D010455:Peptides; D011485:Protein Binding; D012260:Ribonucleases
chemical_list: D010455:Peptides; D006639:Histidine; D003300:Copper; D003903:Deuterium; D012260:Ribonucleases