rmIL-2 Lyophilized. Lyophilized from sterile-filtered 50 mM NH4OAc, 1 mM DTT, 50 µg BSA/µg IL-2, pH 4.0. Recombinant, mouse interleukin-2 expressed in E. coli. Lymphokine that functions as an autocrine factor, driving the expansion of antigen-specific cells. Also acts as a paracrine factor, influencing the activity of other cells, both within and outside of the immune system. IL-2 mediates the regression of metastatic cancers and increases phagocytic activity of Kupffer cells. Biological activity: ED50 = 100-400 pg/ml as measured in a cell proliferation assay using an IL-2-dependent mouse cytotoxic T cell line, CTLL-2. Purity: >97% by SDS-PAGE. RTECS QG2000000. Merck Index: 14, 4994 Ref.: Lissoni, P. et al. 2002. In Vivo 16, 93. Umlauf, S.W., et al. 1995. Mol. Cell. Biol. 15, 3197. Kashima, K., et al. 1985. Nature 313, 402. |