title: A spin label substrate analogue as active site-directed modifying agent. Tryptophan 140 of aspartate aminotransferase.
mesh_terms: D000818:Animals; D001219:Aspartate Aminotransferases / Q000378:metabolism*; D001665:Binding Sites; D004578:Electron Spin Resonance Spectroscopy; D007700:Kinetics; D009206:Myocardium / Q000201:enzymology; D009603:Nitroso Compounds / Q000378:metabolism*; D013113:Spin Labels / Q000378:metabolism*; D013552:Swine; D014364:Tryptophan / Q000378:metabolism*
chemical_list: D009603:Nitroso Compounds; D013113:Spin Labels; C001259:Fremy's salt; D014364:Tryptophan; D001219:Aspartate Aminotransferases