Biotinylated Human CD3 epsilon Protein, His,Avitag™
分子别名(Synonym)
FLJ18683, T3E, TCRE, CD3E, CD3-epsilon
表达区间及表达系统(Source)
Biotinylated Human CD3 epsilon, His,Avitag (CDE-H82E1) is expressed from human 293 cells (HEK293). It contains AA Asp 23 - Asp 126 (Accession # P07766-1).
Predicted N-terminus: Asp 23
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 15.5 kDa. The protein migrates as 17-18 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.
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
CD3ε分子(epsilon链),也称为CD3E,是一种T细胞表面的单次穿膜I型膜糖蛋白。CD3E包含1个免疫球蛋白样结构域(Ig-like domain)和1个ITAM结构域(免疫受体酪氨酸激活基序)。
CD3E与CD3-γ、CD3-δ、CD3-ζ链以及T细胞受体α/β和γ/δ异二聚体共同组成T细胞受体-CD3复合物(TCR-CD3 complex)。该复合物在将抗原识别与多种细胞内信号转导通路相衔接的过程中发挥关键作用。
编码ε、γ和δ多肽链的基因位于11号染色体的同一基因簇内。其中,ε链多肽在T细胞发育中起不可或缺的作用。CD3E在T细胞发育中扮演核心角色,其基因缺陷可导致严重免疫缺陷症。此外,CD3E基因也被认为与女性罹患I型糖尿病(Type I diabetes)的易感性相关。
研究已证实CD3E可与TOP2B、CD3EAP及NCK2蛋白发生相互作用。
关键字: CD3 epsilon;CD3 epsilon蛋白;CD3 epsilon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。