Source Human MASP2 Protein is expressed from E.coli with His tag at the C-Terminus. It contains Gly288-Phe686.[Accession | O00187-1] Molecular Weight The protein has a predicted MW of 46.9 kDa. Due to autocatalytic cleavage, the protein migrates to 18 kDa&25-30 kDa based on Tris-Bis PAGE result. Endotoxin 95% as determined by Tris-Bis PAGE Activity ELISA Data: Immobilized Human MASP2, His Tag at 0.2μg/ml (100μl/Well). Dose response curve for Anti-MASP2 Antibody, hFc Tag with the EC50 of 3.0ng/ml determined by ELISA SPR Data: Anti-MASP2 Antibody captured on CM5 Chip via Protein A can bind Human MASP2, His Tag with an affinity constant of 3.08 nM as determined in SPR assay Formulation Lyophilized from 0.22μm filtered solution in 20mM Tris, 200mM NaCl (pH 9.0). Normally 8% trehalose is added as protectant before lyophilization. Reconstitution Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water. Storage The product should be stored at -25~-15℃ for 1 year from date of receipt. 2-7 days, 2 ~ 8 °C under sterile conditions after reconstitution. 3 months, -25~-15℃ under sterile conditions after reconstitution. Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles. Note 1.Please operate with lab coats and disposable gloves,for your safety. 2.This product is for research use only.