Active Recombinant Human CEACAM1 protein(Met1-Gly428), His-tagged

Specification :
| Source : HEK293 | Species : Human | Tag : C-His | Protein length : Met1-Gly428 | Form : Lyophilized from sterile PBS, pH 7.4. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. | Bio-activity : 1. Measured by its ability to bind biotinylated Human CEACAM6-His in functional ELISA. 2. Measured by its ability to bind biotinylated Human CEACAM8-His in functional ELISA.3. Measured by its ability to inhibit IL­2 secretion by HuT 78 human cutaneous T cell lymphoma cells. The ED50 for this effect is typically 2­13 μg/mL. | Molecular Mass : The secreted recombinant human CEACAM1 comprises 405 amino acids and predicts a molecular mass of 44.8 kDa. As a result of glycosylation, the apparent molecular mass of rhCEACAM1 is approximately 60.5 kDa in SDS-PAGE under reducing conditions. | Endotoxin : | Purity : > 95 % as determined by SDS-PAGE | Storage : Samples are stable for up to twelve months from date of receipt at -20°C to -80°C. Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles. | Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.