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折扣/货期| 货号：40-670 | 规格：5 ug | 目录价：￥3808.35 |
产品详情
* 以下信息仅供参考，详情请以原厂网站为准
产品名称:
sIL-4 Receptor alpha Recombinant Protein
别名:
soluble Interleukin-4Rα, soluble IL-4 Receptor alpha, CD124
表达系统:
CHO cells
保存温度:
The recombinant protein is stable for at least 2 years from date of receipt at -20˚C. Reconstituted protein is stable for at least 3 months when stored in working aliquots with a carrier protein at -20˚C. As with any protein, exposing the recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.
运输温度:
Blue Ice
产品形式:
Lyophilized
产地:
美国
生产商:
Prosci
功能与背景:
IL-4 can signal through type I and type II receptor complexes, which share a common gamma chain (γc). The type I receptor contains, in addition to the γc, an IL-4Rα subunit, whereas the type II receptor contains the IL-13Rα. The secreted extracellular domain of IL-4Rα, called sIL-4Rα, binds IL-4 and antagonizes its activity. It plays an important role in regulating the differentiation of naïve CD4+ T cells and class switching to IgG1 and IgE. CHO cell-derived Recombinant Human sIL-4 Receptor α is a 23.9 kDa glycoprotein corresponding to 209 amino acid residues of the extracellular domain of IL-4Rα. As a result of glycosylation, Recombinant Human sIL-4 Receptor α migrates with an apparent molecular mass of approximately 50-65 kDa by SDS-PAGE gel, under reducing conditions.
纯度:
≥ 95% by SDS-PAGE gel and HPLC analyses.
生物活性:
The ED50 was determined by its ability to inhibit the IL-4 dependent proliferation of human TF-1 cells is ≤ 5.0 ng/ml (in the presence of 0.5 ng/ml of IL-4), corresponding to a specific activity of ≥ 2 x 105 units/mg.
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