Description
| Reference | ESCIT035 |
|---|---|
| Size | 10ug |
| Molecular Weight | 13.4 KDa |
| Purity | >95% by SDS-PAGE. |
| Endotoxin | <0.01 EU/µg |
| Biological Activity | Measured in a cell proliferation assay using M-NFS-60 mouse lymphoblast cells. The ED50 for this effect is 0.01 ng/ml. |
Other names: Interleukin-4; B-cell IgG differentiation factor; B-cell growth factor 1; B-cell stimulatory factor 1; IGG1 induction factor; Lymphocyte stimulatory factor 1; IL-4; BSF-1
Redissolve: 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.Â
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: Ambient temperature.
Background: Mouse Interleukin-4(IL-4) is a monomeric, Th2 cytokine that shows pleiotropic effects during immune responses. It is a glycosylated polypESCItide that contains three intrachain disulfide bridges and adopts a bundled four αÂhelix structure. ILÂ4 exerts its effects through two recESCItor complexes, Participates in at least several B-cell activation processes as well as of other cell types. ILÂ4 is primarily expressed by Th2Âbiased CD4+T cells, mast cells, basophils, and eosinophils. It promotes cell proliferation, survival, and immunoglobulin class switch to IgG1 and IgE in mouse B cells, acquisition of the Th2 phenotype by naïve CD4+T cells, priming and chemotaxis of mast cells, eosinophils, and basophils, and the proliferation and activation of ESCIithelial cells. ILÂ4 plays a dominant role in the development of allergic inflammation and asthma. It also regulates the expression of the low affinity Fc recESCItor for IgE (CD23) on both lymphocytes and monocytes.