Recombinant Human Interleukin-2/IL-2 Protein (E.coli, Active)
SKU: PKSH033425-100
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Recombinant Human Interleukin-2/IL-2 Protein (E.coli, Active)
SKU # | PKSH033425 |
Expression Host | E.coli |
Description
Synonyms | IL2, IL-2, TCGF, lymphokine, Aldesleukin, IL-2lymphokine, interleukin-2, Proleukin, interleukin 2, involved in regulation of T-cell clonal expansion, T cell growth factor, T-cell growth factor, IL 2, IL2, Interleukin 2, interleukin2, Involved in regulation of T cell clonal expansion, Lymphokine, POIL2, T Cell Growth Factor, TCGF |
Species | Human |
Expression Host | E.coli |
Sequence | Ala21-Thr153 |
Accession | P60568 |
Calculated Molecular Weight | 16.4 kDa |
Observed Molecular Weight | 13 kDa |
Tag | C-His |
Bio-activity | Measure by its ability to induce proliferation in CTLL-2 cells. The ED50 for this effect is <3 ng/mL. The specific activity of recombinant human IL-2 is >5 x 106 IU/mg. |
Properties
Purity | > 98 % as determined by reducing SDS-PAGE. |
Endotoxin | < 0.01 EU per μg of the protein as determined by the LAL method. |
Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
Formulation | Lyophilized from sterile PBS,pH 8.0. Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
Reconstitution | Please refer to the printed manual for detailed information. |
Background
Interleukin-2(IL-2) is an interleukin; a type of cytokine signaling molecule in the immune system;belongs to the IL-2 family. It is a powerful immunoregulatory lymphokine produced by T-cells in response to antigenic or mitogenic stimulation. IL-2/IL-2R signaling is required for T-cell proliferation and other fundamental functions that are essential for the immune response. IL-2 stimulates growth and differentiation of B-cells; NK cells; lymphokine-activated killer cells; monocytes; macrophages and oligodendrocytes.