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Table 4 Effect of inhibitors on scorpion chymotrypsin-like protease activity

From: A new chymotrypsin-like serine protease involved in dietary protein digestion in a primitive animal, Scorpio maurus: purification and biochemical characterization

Inhibitors Concentration (mM) Residual activity (%)
None   100
PMSF 1 18
  5 7
DTNB 1 100
  5 100
EDTA 1 98
  5 60
  10 40
  1. Enzyme activity measured in the absence of any inhibitor was taken as 100%. The remaining protease activity was measured after incubation of enzyme with each inhibitor at 4°C for 15 min.