title: Proton spin-lattice relaxation studies of the histidine residues of pancreatic ribonuclease.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D003597:Cytosine Nucleotides; D003903:Deuterium; D005583:Fourier Analysis; D006639:Histidine; D009682:Magnetic Resonance Spectroscopy; D010179:Pancreas / Q000201:enzymology*; D010710:Phosphates; D011485:Protein Binding; D011522:Protons; D012260:Ribonucleases / Q000037:antagonists & inhibitors
chemical_list: D003597:Cytosine Nucleotides; D010710:Phosphates; D011522:Protons; D006639:Histidine; D003903:Deuterium; D012260:Ribonucleases