Figure 2.
Stability of rSET and modified porcine trypsin against autolysis. rSET and modified porcine trypsin were incubated in 50 mM ammonium bicarbonate at 37 °C for different duration (0, 6, 12, 24, 48, and 96 h) and subjected to SDS-PAGE analysis (A) and amidase activity assay, -●-: rSET, -○-: modified porcine trypsin (B). Protein bands were quantified by densitometry using DeCyder software (GE Health Care) and normalized to 0 time. The result of activity assay are means ± standard deviation from triplicate reactions.