title: Letter: Application of mass spectrometry to enzyme inhibition studies.
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D004791:Enzyme Inhibitors; D006639:Histidine; D006863:Hydrogen-Ion Concentration; D007461:Iodoacetates; D008239:Lysine; D013058:Mass Spectrometry; D012260:Ribonucleases / Q000037:antagonists & inhibitors
chemical_list: D000596:Amino Acids; D004791:Enzyme Inhibitors; D007461:Iodoacetates; D006639:Histidine; D012260:Ribonucleases; D008239:Lysine