Active Recombinant Human CTLA4 protein, Twin Strep-tagged

Specification :
| Source : HEK293 | Species : Human | Tag : Twin Strep | Predicted N Terminal : Ala 37 | Form : Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally Mannitol or Trehalose are added as protectants before lyophilization. | Bio-activity : Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human CD80 /B7-1 Protein, With C-Fc Tag at 2 μg/mL ( 100 μl/well ) can bind Recombinant Human CTLA4 /CD152 Protein, With C-Twin Strep Tag with a linear range of 1-20 ng/mL.Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human B7-2 / CD86 Protein, With C-Fc Tag at 2 μg/mL ( 100 μl/well ) can bind Recombinant Human CTLA4 /CD152 Protein, With C-Twin Strep Tag with a linear range of 1-20 ng/mL. | Molecular Mass : Has a calculated MW of 16.5 kDa. DTT-reduced Protein migrates as 21-26 kDa in SDS-PAGE due to glycosylation. | Protein length : Ala 37 – Phe 162 | Endotoxin : Less than 1.0 EU per μg of the rh CTLA4 /CD152,twin strep tag by the LAL method. | Purity : >95% as determined by SDS-PAGE. | Storage : Avoid repeated freeze-thaw cycles.No activity loss was observed after storage at:In lyophilized state for 1 year (4 centigrade); After reconstitution under sterile conditions for 3 months (-70 centigrade).