Human STAT3 Protein, His Tag (MALS & SPR verified)
分子别名(Synonym)
STAT3, signal transducer and activator of transcription 3
表达区间及表达系统(Source)
Human STAT3, His Tag (ST3-H5149) is expressed from E. coli cells. It contains AA Gly 127 - Arg 688 (Accession # P40763-1).
Predicted N-terminus: Met
蛋白结构(Molecular Characterization)

This protein carries a polyhistidine tag at the N-terminus.
The protein has a calculated MW of 66.4 kDa. The protein migrates as 66-70 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE).
内毒素(Endotoxin)
Less than 1.0 EU per μg by the LAL method / rFC method.
纯度(Purity)
>95% as determined by SDS-PAGE.
制剂(Formulation)
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH7.5 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
信号转导与转录激活因子3(STAT3)调控着对细胞生存、增殖、自我更新、血管生成及免疫应答等关键生物学过程至关重要的基因表达。作为早期肿瘤诊断标志物,研究认为模型系统中STAT3的持续性激活是诱发恶性转化与肿瘤发展的充分因素。在癌细胞中经典的IL-6/STAT3信号通路中,IL-6与膜结合型IL-6受体α(IL-6R)及IL-6受体β(即gp130)结合形成复合物,激活JAKs的磷酸化,进而引发STAT3磷酸化并活化。随后,磷酸化STAT3形成同源二聚体转移至细胞核内,结合靶基因启动子区域并激活其转录过程。
关键字: STAT3;STAT3蛋白;STAT3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。