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Recombinant Human Interleukin-2/IL-2 Protein (E.coli, Active)

Uniprot : P60568

Cat.No.:PKSH033425
Expression host: E.coli

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Description

Synonyms	Interleukin-2, IL-2, T-Cell Growth Factor, TCGF, Aldesleukin, IL5
Species	Human
Expression_host	E.coli
Sequence	Ala21-Thr153
Accession	P60568
Application	Cell Culture
Mol_Mass	15.5 kDa
AP_Mol_Mass	14 kDa
Tag	None
Bio_Activity	1. Measure by its ability to induce proliferation in CTLL-2 cells. The ED50 for this effect is < 0.2 ng/mL The specific activity of recombinant human IL-2 is approximately > 2. 5 x10^7 IU/mg. 2. Measure by its ability to induce proliferation in NK cells. The ED50 for this effect is < 46ng/mL.

Properties

Purity	> 95 % as determined by reducing SDS-PAGE.
Endotoxin level	< 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 a 0.2 μm filtered solution of 10mM sodium citrate, pH 4.0 Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manu
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.

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