• Source： Chinese Hamster Ovary cell line
• Description： Human Interleukin-2 (Ala21-Thr153) Accession # P60568-1
• Predicted molecular mass： 15.5 kDa
• Purity： ≥95%, by SDS-PAGE (under reducing (R) & Non-reducing conditions, visualized by Coomassie staining)
• Endotoxin： ≤0.5 EU/mg by the LAL method
• Activity： ≥1 x 107 IU/mg. Measured in a cell proliferation assay using CTLL-2 mouse cytotoxic T cells
• Formulation： Lyophilized from a 0.22 μm-filtered solution containing PBS, 5% mannitol and 0.01% Tween 80, pH 7.4
• Appearance： White powder, Colorless clear liquid after reconstitution
• Reconstitution： It is recommended to redissolve in sterile deionized water.
• Shipping： The product is shipped with blue ice
• Storage & Stability： 24 months at 2°C to 8°C in lyophilized state 7-10 days at 2°C to 8°C under sterile conditions after reconstitution 6 months at -20°C to -80°C under sterile conditions after reconstitution Use a manual defrost freezer and avoid repeated freeze-thaw cycles.