Canine IL-2 Antibody Summary
Ala21-Thr155 with a Cys147Ser substitution
Accession # Q29416
Canine IL-2 Sandwich Immunoassay
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Cell Proliferation Induced by IL‑2 and Neutralization by Canine IL‑2 Antibody. Recombinant Canine IL-2 (Cys147Ser) (Catalog # 1815-CL) stimulates proliferation in the CTLL-2 mouse cytotoxic T cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Canine IL-2 (Cys147Ser) (10 ng/mL) is neutralized (green line) by increasing concentrations of Canine IL-2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1815). The ND50is typically 0.25-1.5 µg/mL.
Preparation and Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Interleukin 2 was initially identified as a T cell growth factor that is produced by T cells following activation by mitogens or antigens. Since then, it has been shown that IL-2 can also stimulate the growth and differentiation of B cells, natural killer (NK) cells, lymphocyte activated killer (LAK) cells, monocytes/macrophages, and oligodendrocytes. The biological activity of IL-2 is mediated by the binding to cell surface receptor complexes composed of three subunits designated as alpha, beta, and gamma subunits. IL-2 binds the alpha subunit with low affinity. The functional high affinity IL-2 receptor is a heterotrimeric complex of the alpha, beta, and gamma subunits. IL-2 binds with intermediate affinity to the complex containing the beta and gamma subunits, which is also capable of transducing IL-2 signals. In T cells, the beta and gamma subunits are shared with the IL-15 receptor complex. The gamma subunit of the IL-2 receptor complex has also been shown to be a subunit of the receptor complexes of IL-4, IL-7, and IL-9. At the amino acid sequence level, canine IL-2 shares 90%, 86%, 85%, 76%, and 75% sequence similarities to feline, human, equine, mouse, and bovine IL-2, respectively.
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