Binding of alkali and alkaline earth cations and of protons to the peptide group.
D000577:Amides; D001665:Binding Sites; D002118:Calcium; D006863:Hydrogen-Ion Concentration; D008094:Lithium; D008274:Magnesium; D008433:Mathematics; D009994:Osmolar Concentration; D010455:Peptides; D011485:Protein Binding; D011487:Protein Conformation; D012964:Sodium; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship
D000577:Amides; D010455:Peptides; D008094:Lithium; D012964:Sodium; D008274:Magnesium; D002118:Calcium