Anti-IL2 Antibody Picoband®

Interleukin-2 (IL2), formerly referred to as T-cell growth factor, is a powerfully immunoregulatory lymphokine that is produced by lectin- or antigen-activated T cells. It is produced not only by mature T lymphocytes on stimulation but also constitutively by certain T-cell lymphoma cell lines. The lymphokine interleukin-2 (IL-2) is responsible for autocrine cell cycle progression and regulation of immune responses. IL-2 expression in mature thymocytes and T cells has been found to be tightly controlled by monoallelic expression. IL-2 can act as a growth hormone for both B and T lymphocytes. This gene for interleukin 2 (IL2) is assigned to chromosome 4. IL-2 is a 15.5KDa glycoprotein, consisting of 153 amino acids in precursor form and 133 amino acids in mature form.

E.coli-derived rat IL-2 recombinant protein (Position: A21-Q155) . Rat IL-2 shares 66% and 80% amino acid (aa) sequences identity with human and mouse IL-2, respectively.

Produced by T-cells in response to antigenic or mitogenic stimulation, this protein is required for T-cell proliferation and other activities crucial to regulation of the immune response. Can stimulate B-cells, monocytes, lymphokine- activated killer cells, natural killer cells, and glioma cells.

1. Hollander, G. A.; Zuklys, S.; Morel, C.; Mizoguchi, E.; Mobisson, K.; Simpson, S.; Terhorst, C.; Wishart, W.; Golan, D. E.; Bhan, A. K.; Burakoff, S. J. Monoallelic expression of the interleukin-2 locus. Science 279: 2118-2121, 1998. 2. Lowenthal, J. W.; Zubler, R. H.; Nabholz, M.; MacDonald, H. R. Similarities between interleukin-2 receptor number and affinity on activated B and T lymphocytes. Nature 315: 669-672, 1985. 3. Shows, T.; Eddy, R.; Haley, L.; Byers, M.; Henry, M.; Fujita, T.; Matsui, H.; Taniguchi, T. Interleukin 2 (IL2) is assigned to human chromosome 4. Somat. Cell Molec. Genet. 10: 315-318, 1984.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.