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IL-4/BSF-1 (Cells), Human, Recombinant-1

英文名称:IL-4/BSF-1 (Cells), Human, Recombinant

货号:GPCK030

价格: ¥11880.00 ¥2080.00 ¥780.00 ¥17280.00

规格:
500μg 50μg 10μg 1mg
产品详情

产品信息

产品规格 500μg / 50μg / 10μg / 1mg
表达宿主 Human Cells
序列信息 His25-Ser153
检索号 P05112
分子量 14.97 KDa
表观分子量 18 KDa
生物活性 Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 0.01-0.05 ng/mL.
纯度 > 95% as determined by reducing SDS-PAGE.
内毒素 < 0.1 EU/μg
制剂 Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.4.
复融 Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in sterile water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
储存条件 Lyophilized protein should be stored at -5~-20℃, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at -5~-20℃ for 3 months.
运输条件 Ambient temperature or ice pack.
有效期 12个月
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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