Recombinant Human MASP2 Protein is expressed from E.coli with His tag at the C-Terminus.It contains Gly288-Phe686.
纯度
> 95 % as determined by Tris-Bis PAGE
过滤
0.22 μm filtered
内毒素水平
Less than 1EU per μg by the LAL method.
Biological Activity Comment
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. The affinity constant of 3.08 nM as determined in SPR assay (Biacore T200). See testing image for detail.
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/mL is recommended. Dissolve the lyophilized protein in distilled water.
缓冲液
Lyophilized from 0.22μm filtered solution in 20 mM Tris, 200 mM NaCl ( pH 9.0). Normally 8 % trehalose is added as protectant before lyophilization.
储存条件
-20 °C,-80 °C
储存方法
-20 to -80°C for 12 months as supplied from date of receipt.,-80°C for 3-6 months after reconstitution.,2-8°C for 2-7 days after reconstitution.,Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
The pathogenesis of severe acute respiratory disease syndrome (SARS) is not fully understood. One case-control study has reported an association between susceptibility to SARS and mannan-binding lectin (MBL) in China. As the downstream protein of MBL, variants of the MBL-associated serine protease-2 (MASP2) gene may be associated with SARS coronavirus (SARS-CoV) infection in the same population.
分子量
46.9 kDa. Due to autocatalytic cleavage, the protein migrates to 18 kDa&25-30 kDa based on Tris-Bis PAGE result.