Elastase inhibitor. Inhibitor of A.flavus elastase with a Ki of 40 nM. Inhibitor of A.fumigatus elastase and human leukocyte elastase. Inhibits the fibrinogenase and collagenase activities of A.flavus elastase. Does not inhibit porcine pancreatic elastase, trypsin, chymotrypsin, thrombin or A.acutus AC1-proteinase. Stable from pH 6 to 10. Stable at temperatures below 80 degrees Celsius. On the 2D-gel the determined pI of this protein is: 7.4.