Human IL-4 (Mammalian)
产品说明书
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同义名 : | 重组人IL-4 蛋白(HEK293, tag free) ;Recombinant Human IL-4 (Mammalian) |
| CAS号 : | N/A | |
| 货号 : | A2900798 | |
| 分子式 : | - | |
| 纯度 : | 95% >=95% as determined by reducing SDS-PAGE. | |
| 分子量 : | 0 | |
| MDL号 : | - | |
| 存储条件： |
Pure form Sealed in dry, store in freezer, under -20°C In solvent -20°C:3-6个月-80°C:12个月 |
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| 溶解度 : | - | |
| 动物实验配方： |
| 生物活性 | |||
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| 描述 | 产品名称：Recombinant Human IL-4 (Mammalian)理论分子量：14.97 KDa蛋白种属：Human表达系统：Human Cells蛋白表达区间：His25-Ser153标签：Tag free剂型：干粉纯度：≥95% as determined by reducing SDS-PAGE.储存条件：冻干蛋白应储存在≤-20°C，收到后可稳定保存一年。 溶解后的蛋白溶液可以在2-8°C下保存2-7天。如要长期保存，建议使用含载体蛋白(如 0.1%BSA、10%FBS、5%HSA)的溶液进一步稀释，如果是做无血清培养或者动物体内实验时，细胞因子中不能含有BSA、FBS 和 HAS，可以使用海藻糖作为载体，然后分装冻存于-20℃至-80℃。注:分装保存时建议使用低吸附的管子，并避免反复冻融；稀释分装浓度不低于 10μg/mL，分装体积不低于10μL。 分装后的蛋白在≤-20°C 下可稳定保存 3 个月。产品背景：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. | ||