IL-2 (human):Fc (human IgG4) (rec.)
The extracellular domain of human IL-2 (aa 21-153) is fused to the N-terminus of the Fc region of human IgG4.
Measured in a cell proliferation assay using CTLL-2 mouse cytotoxic T cells.
|Endotoxin Content||<5EU/mg protein (LAL test; Lonza).|
Reconstitute 50µg vial in 50µl sterile water.
Add 1X PBS to the desired protein concentration.
|Formulation||Lyophilized from 0.2μm-filtered solution in PBS.|
|Protein Negative Control|
|Other Product Data||
NCBI reference NP_000577.2: IL-2 (human)
|Declaration||Manufactured by Chimerigen.|
|Shipping and Handling|
|Short Term Storage||+4°C|
|Long Term Storage||-20°C|
Avoid freeze/thaw cycles.
Centrifuge lyophilized vial before opening and reconstitution.
Stable for at least 1 year after receipt when stored at -20°C.
Working aliquots are stable for up to 3 months when stored at -20°C.
|Product Specification Sheet|
Interleukin-2 (IL-2) is a 133 amino acid glycoprotein with one intramolecular disulfide bond and variable glycosylation. It is secreted by activated T cells and induces proliferation and maturation of activated T cells, natural killer cells, and lymphokine activated killer cells. IL-2 also stimulates proliferation of antibody-producing B cells, activates neutrophils, and induces mononuclear cells to secrete IFN-γ and TNF-α and -β. Moreover, studies have shown that IL-2 is required for activation-induced apoptosis, an important hemeostatic mechanism in the immune system, which is involved in the maintenance of peripheral tolerance to self-antigens.