title: Spin-labeled ribonuclease. A. Selective incorporation of a nitroxide spin label sensitive to active-center geometry.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001665:Binding Sites; D002384:Catalysis; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D003497:Cyclic N-Oxides; D004578:Electron Spin Resonance Spectroscopy; D006639:Histidine; D007700:Kinetics; D010179:Pancreas / Q000201:enzymology*; D010455:Peptides / Q000302:isolation & purification; D012260:Ribonucleases / Q000032:analysis / Q000037:antagonists & inhibitors; D013056:Spectrophotometry, Ultraviolet; D013113:Spin Labels
chemical_list: D000596:Amino Acids; D003497:Cyclic N-Oxides; D010455:Peptides; D013113:Spin Labels; D006639:Histidine; D012260:Ribonucleases