The human IL-2 protein, also known as interleukin-2, is an important cytokine that plays a vital role in regulating the immune system. It is produced by activated T cells and stimulates the proliferation and activation of various immune cells, such as T cells, B cells, and natural killer cells. IL-2 also promotes the development of immune memory and enhances the effectiveness of the immune response against infections and cancers. In addition, IL-2 has been used therapeutically in the treatment of certain diseases, such as cancer and autoimmune disorders, to boost the immune system. Product information Synonyms Interleukin-2; T-Cell Growth Factor; TCGF; Aldesleukin Uniprot No. P60568 Source HEK293 cells-derived human IL-2 protein, Ala21-Thr153, with N-terminal his tag. Molecular Weight Approximately 17.35 kDa. Purity > 90% as determined by SDS-PAGE. Biological Activity Human IL-2R immobilized on CM5 chip can bind human IL-2, His tag, with an affinity constant of 3.84 x 10-7 M as determined in a SPR assay (Biacore 8K). Endotoxin < 1 EU per 1μg of the protein by the LAL method. Formulation Lyophilized from a 0.2 μm filtered concentrated solution in PBS. Reconstitution Centrifuge tubes before opening. Dissolve lyophilized protein with PBS. Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles. Storage The product should be stored at -25~-15℃ for 1 year from date of receipt. 2-7 days, 2 ~8 °C under sterile conditions after reconstitution. 3 months, -25~-15℃ under sterile conditions after reconstitution. Notes 1.Please operate with lab coats and disposable gloves, for your safety. 2.This product is for research use only.
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