Recombinant Human IL-2 Protein,His Tag (HEK293)

Description :
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 10-7M as determined in a SPR assay (Biacore 8K). Endotoxin Formulation Lyophilized from a 0.2 m 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 usedand avoid repeated freeze-thaw cycles.