A proteolytic cleavage experiment was performed with the protein Malate dehydrogenase (MDH) and Trypsin protease, to identify early cleavage sites in MDH. Various concentrations of Trypsin (5,000, 10,000 and 100,000 x diluted) were tested and early timepoints taken to detect only few cleavage sites in order to identify the very first events of MDH proteolysis