title: Measurement of histidine residue titration by NMR spectroscopy.
mesh_terms: D000818:Animals; D002151:Calorimetry; D002417:Cattle; D003903:Deuterium; D006639:Histidine / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D008722:Methods; D010179:Pancreas / Q000201:enzymology; D010455:Peptides; D011487:Protein Conformation; D012260:Ribonucleases; D013210:Staphylococcus; D013816:Thermodynamics
chemical_list: D010455:Peptides; D006639:Histidine; D003903:Deuterium; D012260:Ribonucleases