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Data and Publications
(A) The biological activity of Human Recombinant IL-15 was tested by its ability to promote the proliferation of CTLL-2 cells growing in the
presence of other cytokines and stimuli. Cell proliferation was measured after 65 hours of culture using a fluorometric assay method. The
EC50 is defined as the effective concentration of the growth factor at which cell proliferation is at 50% of maximum. The EC50 in the
above example is 0.13 - 0.19 ng/mL.
(B) 1 ug of Human Recombinant IL-15 was resolved with SDS-PAGE under reducing (+) and non-reducing (-) conditions and visualized by Coomassie Blue staining. Human Recombinant IL-15 has a predicted molecular mass of 12.9 kDa.