Product name: | Recombinant Mouse IL-4 (C-6His) |
Description: | Recombinant Mouse Interleukin-4 is produced by our Mammalian expression system and the target gene encoding His21-Ser140 is expressed with a 6His tag at the C-terminus. |
Accession: | P07750 |
Molecular weight: | 14.6 KDa |
Apparent molecular weight: | 15-19 KDa, reducing conditions |
Purity: | Greater than 95% as determined by reducing SDS-PAGE. |
Endotoxin: | Less than 0.1 ng/μg (1 EU/μg) as determined by LAL test. |
Biological activity: | Measured in a cell proliferation assay using M-NFS-60 mouse lymphoblast cells.? The ED50 for this effect is 0.035 ng/ml. |
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.? |
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. |
Delivery condition: | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below. |
Background: | Interleukin-4 (IL-4) is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. IL-4 is produced by mast cells, T cells, and bone marrow stromal cells. IL-4 regulates the differentiation of naive CD4+ T cells into helper Th2 cells, characterized by their cytokine-secretion profile that includes secretion of IL-4, IL-5, IL-6, IL-10, and IL-13, which favor a humoral immune response. Another dominant function of IL-4 is the regulation of immunoglobulin class switching to the IgG1 and IgE isotypes. Excessive IL-4 production by Th2 cells has been associated with elevated IgE production and allergic response. |
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