Recombinant IL-2 is a bioactive protein intended for use in cell culture applications. IL-2 causes proliferation of T cells and is a central regulator of immune responses. ED50 range = 0.08-0.5 ng⁄mL, determined by the dose dependent proliferation of mouse CTLL-2 cells. Optimal concentration for individual application should be determined by a dose response assay.
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Lyophilized protein can be stored at 2-8°C dessicated. Once reconstituted, store in aliquots at ≤20°C. Avoid multiple freeze⁄thaw cycles.