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产品名称
起订量
单价(含增值税)
库存(PCS)
起订数量
产品概述
产品信息
| 别名 | Interleukin-4; IL-4; IL4; B-cell IgG differentiation factor; B-cell Growth Factor 1; B-cell stimulatory factor 1; BSF-1; IGG1 induction factor; Lymphocyte stimulatory factor 1 |
| 物种 | Mouse |
| 表达宿主 | Human Cells |
| 序列信息 | His21-Ser140 |
| 检索号 | P07750 |
| 分子量 | 14.6 kDa |
| 表观分子量 | 17-19 kDa |
| 标签 | C-6His |
| 生物活性 | Measured in a cell proliferation assay using CTLL?2 mouse cytotoxic T cellsThe ED50 for this effect is less than 2 ng/ ml. |
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. |
| 运输 | The product is shipped at ambient temperature.Upon receipt, store it immediately at the temperature listed below. |
| 制剂 | Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.4. |
| 复融 | Please refer to it for detailed information. |
背景介绍
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.
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