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IL-4/BSF-1, Human, Recombinant-1

英文名称:IL-4/BSF-1, Human, Recombinant

货号:GPCK031

价格: ¥9680.00 ¥2780.00 ¥880.00 ¥13880.00

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 E.coli
序列信息 MHKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS with polyhistidine tag at the C-terminus.
检索号 P05112.1
分子量 15.9 kDa
表观分子量 12 kDa
标签 His-tag at the C-terminus
生物活性 Measure by its ability to induce TF-1 cells proliferation. The ED50 for this effect is < 0.2 ng/mL. The specific activity of recombinant human IL-4 is approximately > 2.8 × 10^7 IU/mg.
纯度 > 98% as determined by SDS-PAGE. Ni-NTA chromatography.
内毒素 < 0.1 EU/μg
制剂 The protein was lyophilized from a 0.2 μm filtered solution containing 1 × PBS, pH 8.0.
复融 It is recommended to reconstitute the lyophilized protein in sterile water to a concentration not less than 100 μg/mL. Do Not Vortex! Vigorous shaking may impair the biological activity of the protein.
储存条件 Lyophilized protein should be stored at -5~-20℃ for 1 year. Upon reconstitution,store at 2-8℃ for up to 1 week. Further dilute in a buffer containing a carrier protein or stabilizer (e.g. 0.1% BSA, 10% FBS, 5% HSA or 5% trehalose solution), protein aliquots should be stored at -5~-20℃ or -80℃ for 3-6 months.
运输条件 Ambient temperature or ice pack.
有效期 12个月
背景介绍 The interleukin 4 (IL4, IL-4) is a cytokine that induces differentiation of naive helper T cells (Th0 cells) to Th2 cells. Upon activation by IL-4, Th2 cells subsequently produce additional IL-4 in a positive feedback loop. The cell that initially produces IL-4, thus inducing Th2 differentiation, has not been identified, but recent studies suggest that basophils may be the effector cell. It is closely related and has functions similar to Interleukin 13.
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