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Synonyms: TCGF-2, T cell growth factor-2, MCGF-2, Mast-cell growth factor-2, IL4, BSF-1, BCGF-1, BCDF, B cell stimulatory factor-1, B cell growth factor-1, B cell differentiation factor


| Pack Size | Price | USA Stock | Global Stock | Quantity |
|---|---|---|---|---|
| 5 µg | $98 | - | In Stock | |
| 10 µg | $170 | - | In Stock | |
| 20 µg | $216 | - | In Stock | |
| 50 µg | $297 | - | In Stock | |
| 100 µg | $489 | - | In Stock | |
| 200 µg | $816 | 7-10 days | 7-10 days | |
| 500 µg | $1,580 | 7-10 days | 7-10 days | |
| 1 mg | $2,680 | 7-10 days | 7-10 days |
| Bioactivity | ED 50 < 2.0 ng/ml, measured in a cell proliferation assay using murine HT-2 cells, corresponding to a specific activity of > 5.0 × 10 5 units/mg. |
| Description | IL-4 Protein, Mouse, Recombinant (CHO) is expressed in CHO Cells. The accession number is P07750. |
| Species | Mouse |
| Expression System | CHO Cells |
| Tag | Tag Free |
| Accession Number | P07750 |
| Construction | His21-Ser140 |
| Protein Purity | > 95% as determined by SDS-PAGE; > 95% as determined by HPLC |
| Endotoxin | < 0.2 EU/μg of protein as determined by the LAL method. |
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute the lyophilized protein in sterile deionized water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing. |
| Synonyms | TCGF-2, T cell growth factor-2, MCGF-2, Mast-cell growth factor-2, IL4, BSF-1, BCGF-1, BCDF, B cell stimulatory factor-1, B cell growth factor-1, B cell differentiation factor |
| Research Background | Interleukin-4 (IL-4) is a pleiotropic cytokine regulates diverse T and B cell responses including cell proliferation, survival, and gene expression. It has important effects on the growth and differentiation of different immunologically competent cells. Interleukin-4 is produced by mast cells, T cells, and bone marrow stromal cells. IL-4 regulates the differentiation of native CD4 + T cells (Th0 cells) into helper Th2 cells, and regulates the immunoglobulin class switching to the IgG1 and IgE isotypes. IL-4 has numerous important biological functions including stimulating B-cells activation, T-cell proliferation and CD4 + T-cells differentiation to Th2 cells. It is a key regulator in hormone control and adaptive immunity. IL-4 also plays a major role in inflammation response and wound repair via activation of macrophage into M2 cells. IL-4 is stabilized by three disulphide bonds forming a compact globular protein structure. Four alpha-helix bundle with left-handed twist is dominated half of the protein structure with 2 overhand connections and fall into a 2-stranded anti-parallel beta sheet. |
| Molecular Weight | ~15 kDa (Reducing conditions) |
| Shipping | In general, lyophilized powders are shipped with blue ice, while solutions are shipped with dry ice. |
| Storage | Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles. |
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