Serine protease inhibitor. Active against beta-trypsin and alpha-chymotrypsin with dissociation constants of 0.35nM and 40nM respectively. Inhibits factor XIa, but not other enzymes involved in coagulation and fibrinolysis. Does not inhibit subtilisin, lysyl endopeptidase, arginyl endopeptidase or papain. Source: Recombinant protein corresponding to aa1-142 from Lentinula edodes Serine protease inhibitor, fused to 6X His-Tag at N-terminal, expressed in E.coli. Molecular Weight: ~20.0kD Amino Acid Sequence: SLETGRYLIHNGNNIVSRNLAEDRSLNPKRIVLLEPTDKIQLTWIIEKSGDEYILNNRGAPTAHIEDHVFALLIHQEGATKWSIEAVPRHGRNAYIIKGSDGKGWVAPDKAGEQIIYRTLIVGPSEPPTFPLNQVFQIIKLE Storage and Stability: Lyophilized and reconstituted products are stable for 6 months after receipt at -20C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Supplied as a lyophilized powder from 20mM Tris-HCl, 0.5M sodium chloride, pH 8.0, 6% trehalose. Reconstitute with sterile ddH2O to a concentration of 0.1-1mg/ml.
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