Biotinylated Human IL-13 R alpha 2 Protein, His,Avitag™ (MALS verified)
分子别名(Synonym)
IL13RA2, CD213A2, CT19, IL-13R, IL13BP
表达区间及表达系统(Source)
Biotinylated Human IL-13 R alpha 2, His,Avitag (IL2-H82E6) is expressed from human 293 cells (HEK293). It contains AA Asp 27 - Arg 343 (Accession # Q14627-1).
Predicted N-terminus: Asp 27
蛋白结构(Molecular Characterization)

This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 40.7 kDa. The protein migrates as 47-60 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
标记(Labeling)
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
蛋白标记度(Protein Ratio)
Passed as determined by the HABA assay / binding ELISA.
纯度(Purity)
>90% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.
制剂(Formulation)
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法(Reconstitution)
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储(Storage)
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.

背景介绍
白细胞介素-13受体α2亚基(IL13Rα2)亦称IL13Ra2、分化簇213A2(CD213A2)、CT19、IL-13R、IL13BP,是一种膜结合蛋白,由人类IL13RA2基因编码。该蛋白与白细胞介素-13受体复合物的亚基IL13Rα1高度同源。IL13Rα2能以高亲和力结合IL13,但由于其胞内结构域显著缺失,在功能上不充当信号传导介质。值得注意的是,尽管该蛋白无法直接结合IL4,却能调节IL13与IL4的生物学效应。研究还表明其在IL13的内化过程中发挥作用。
作为细胞表面受体的组成成分,IL13Rα2大部分存在于细胞内库及可溶形式中,因此与IL13Rα1相比,其作为强效IL13拮抗剂发挥相反作用。该蛋白还能通过其短胞内结构域与IL4Rα链的胞内结构域发生物理相互作用,从而抑制IL4依赖性通路。虽然不具备STAT信号传导功能,但IL13Rα2确实能诱导TGF-β产生并促进纤维化发生。此外,研究报道IL13Rα2在多形性胶质母细胞瘤中存在大量特异性过表达现象。
关键字: IL13RA2;IL13RA2蛋白;IL13RA2重组蛋白;ACRO;百普赛斯;
百普赛斯集团ACROBiosystems Group(股票代码:301080)是成立于2010年的跨国生物科技公司,是为全球生物医药、健康产业领域提供关键生物试剂产品及解决方案的行业平台型基石企业。2021年在创业板上市。百普赛斯集团业务遍布全球,横跨亚洲、北美洲、欧洲,在中国、美国、瑞士等12个城市设有办公室、研发中心及生产基地。目前累计服务客户超6000家,与全球Top 20医药企业均建立了长期、稳定的合作伙伴关系。集团旗下拥有品牌ACROBiosystems百普赛斯、bioSeedin柏思荟、Condense Capital垦拓资本和ACRODiagnostics百斯医学等。