| 货号 | 产品名称 | 规格 | 库存 | 价格 | 数量 | 购买 |
|---|---|---|---|---|---|---|
| KR0034 | IL-4/ BSF-1, Human, Recombinant | 10ug |
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| 分子量 | 15.1 kDa |
|---|---|
| 表观分子量 | 13-14 kDa |
| 片段与标签 | His25-Ser153 |
| 生物活性 | Measured by the dose-dependent stimulation of TF-1 cells.The ED50 is less than 2 ng/ ml. Specific Activity of 5.0×10^6 IU/ mg. |
| 物种 | Human |
| 表达宿主 | E.coli |
产品特性
| 纯度 | ＞95% as determined by reducing SDS-PAGE. |
|---|---|
| 内毒素 | ＜1.0 EU per µg as determined by LAL test. |
| 保存 | Lyophilized Protein should be stored at ＜ -20℃, though stable at room temperature for 3 weeks.Reconstituted Protein solution can be stored at 4-7℃ for 2-7 days.Aliquots of reconstituted samples are stable at ＜ -20℃ for 3 months |
产品介绍
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.
