Hu Recom IL-5, 100 µg

STEMCELL Technologies provides Human Recombinant IL-5, which functions in the recruitment, activation, proliferation and survival of eosinophils. The biological activity of this protein was tested by its ability to promote the proliferation of TF-1 cells, with cell proliferation measured after 62 hours of culture using a fluorometric assay method. The EC50, defined as the effective concentration of the growth factor at which cell proliferation is at 50% of maximum, is 0.13 - 0.2 ng/mL. SDS-PAGE analysis under reducing (+) and non-reducing (-) conditions, visualized by Coomassie Blue staining, shows that the protein is a homodimer of 13.3 kDa subunits, with a predicted total molecular mass of 26.6 kDa. This product is designed for use in research areas related to Granulocyte-macrophage colony-stimulating factor, Interleukin 3, Interleukin 4, and Interleukin 5.