Interleukin-2 (IL-2) is a Oglycosylated, four α-helix bundle cytokine that has potent stimulatory activity for antigen-activated T cells. It is expressed by CD4+ and CD8+ T cells, γδ T cells, B cells,

產品型號：Z00368

更新時間：2025-11-06

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產品介紹

產品簡介

Species

Human

Protein Construction

IL-2 (Ala21-Thr153)
Accession # P60568

Purity

> 95% as analyzed by SDS-PAGE

Endotoxin Level

< 1 EU/μg of protein by LAL method

Biological Activity

The ED50 as determined by the dose-dependant stimulation of the proliferation of CTLL-2 was found to be < 0.1 ng/ml, corresponding to a specific activity of > 1.0 × 107 IU/mg.

Expression System

E. coli

Theoretical Molecular Weight

15.3 kDa

N-terminal Sequence Analysis

The sequence of the first five N-terminal amino acids wa determined and found to be Met-Ala-Pro-Thr-Ser-Ser.

Apparent Molecular Weight

15,300 Da

Formulation

Lyophilized from a 0.2 μm filtered solution in 10 mM sodium citrate, pH 4.0.

Reconstitution

It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in sterile 18 MΩ-cm H?O up to 100 μg/ml.

Storage & Stability

Upon receiving, this product remains stable for 6 months at -70°C or -20°C. Upon reconstitution, the product should be stable for 1 week at 4°C or for 3 months at -20°C. Avoid repeated freeze-thaw cycles.

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