IL-2 is a powerful immunoregulatory lymphokine produced by T-cells in response to antigenic or mitogenic stimulation. IL-2/IL-2R signaling is required for T-cell proliferation and other fundamental functions that are essential for the immune response. IL-2 stimulates growth and differentiation of B-cells, NK cells, lymphokine-activated killer cells, monocytes, macrophages and oligodendrocytes. Recombinant Murine IL-2 is a 17.2 kDa protein containing 148 amino acid residues.
Greater than 98% by SDS-PAGE gel and HPLC analyses.
生物活性:
The ED50 as determined by the dose-dependent stimulation of murine CTLL-2 cells is ≤ 0.2 ng/ml, corresponding to a specific activity of ≥ 5 x 106units/mg.