Shaw, E Peptidyl sulfonium salts. A new class of protease inhibitors. [electronic resource] - The Journal of biological chemistry Feb 1988 - 2768-72 p. digital Publication Type: Journal Article ISSN: 0021-9258 Subjects--Topical Terms: Affinity Labels--metabolismCathepsin B--metabolismDiazomethane--analogs & derivativesHydrogen-Ion ConcentrationOnium Compounds--analysisPapain--metabolismPeptides--analysisProtease Inhibitors--analysisSpectrophotometry, UltravioletSulfonium Compounds--analysis