| Size | 10ug |
|---|---|
| Expression Host | E.coli |
| Tag | NA |
| Molecular Weight | 17.4 KDa |
|---|---|
| Apparent Molecular Weight | 17 KDa, reducing conditions |
| Form | Lyophilized from a 0.2 μm filtered solution of 20mM Sodium Citrate, 0.2% Tween 80, pH 3.0. |
| Purity | Greater than 95% as determined by reducing SDS-PAGE. |
| Endotoxin Level | Less than 0.001 ng/µg (0.01 EU/µg) as determined by LAL test. |
|---|---|
| Activity | Loaded Human IL-2RA-Fc(Cat#CJ78) on Protein A Biosensor, can bind Mouse IL-2(Cat#CK24) with an affinity constant of 0.17 uM as determined in BLI assay. |
| Reconstitution | Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
|---|---|
| Storage | Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months. |
| Shipping Condition | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below. |
| Background | Interleukin 2 (IL 2), also termed T-cell growth factor, is a member of the cytokine family which includes IL-4, IL-7, IL-9, IL-15 and IL-21. Each member of this family has a four alpha helix bundle. IL-2 signals through the IL-2 receptor, a complex consisting of tree subunits, termed alpha, beta and gamma. The IL-2 R gamma is shared by cytokine receptors of all members of cytokine family. Mature mouse IL2 shares 56% and 73% aa sequence identity with human and rat IL2, respectively. IL-2 is produced by CD4+ T cell, CD8+ T cells, gamma δ T cells, B cells, dendritic cells and eosinophils, and plays a vital role in key function of the immune system, tolerance and immunity, primarily via its potent stimulatory activity for T cells.Thus, IL2 may be a key cytokine in the natural suppression of autoimmunity. |
|---|