Source : |
HEK293 |
Species : |
Human |
Tag : |
Fc |
Protein length : |
1-213 a.a. |
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 : |
Immobilized Recombinant Human IL2 Protein, Low Endotoxin at 2 μg/ml (100 μl/well) can bind CD25/IL2RA Protein, Human, Recombinant (ECD, hFc Tag), The EC50 is 3-10 ng/mL. |
Molecular Mass : |
The mature recombinant human IL2Rα/Fc is a disulfide-linked homodimeric protein generated by proteolytic removal of the signal peptide. The reduced monomer consists of 430 amino acids and has a predicted molecular mass of 48.5 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rhIL2Rα/Fc monomer is approximately 72 kDa due to glycosylation. |
Endotoxin : |
< 1.0 EU per μg of the protein as determined by the LAL method |
Purity : |
> 90 % 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. |