Inhibitor of porcine pancreatic elastase with a Ki of 27 nM. Does not inhibit human neutrophil elastase, bovine trypsin, human plasma kallikrein or porcine pancreatic kallikrein. On the 2D-gel the determined pI of this protein is: 4.56, its MW is: 16992.79 kDa. Belongs to the leguminous Kunitz-type inhibitor family.