Human B7-2 / CD86 Protein, His Tag (MALS verified)
分子别名(Synonym)
CD86,B7-2,B70,CD28LG2,LAB72,MGC34413
表达区间及表达系统(Source)
Human B7-2, His Tag (CD6-H5223) is expressed from human 293 cells (HEK293). It contains AA Leu 26 - Pro 247 (Accession # AAH40261).
Predicted N-terminus: Leu 26
蛋白结构(Molecular Characterization)

This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 26.2 kDa. The protein migrates as 40-63 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
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.
>90% 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
分化簇86(CD86)亦称B淋巴细胞激活抗原B7-2,是一种属于免疫球蛋白超家族的I型膜蛋白。该蛋白组成性表达于并指树突状细胞、朗格汉斯细胞、外周血树突状细胞、记忆B细胞及生发中心B细胞表面,同时在单核细胞中呈低水平表达,并可经γ干扰素诱导上调。CD86是T细胞表面两种不同蛋白的配体:CD28(参与自身调节与细胞间联结)和CTLA-4(参与调节衰减与细胞解离)。CD86与CD80协同作用启动T细胞。最新研究表明,B7-2能促进成熟抗原呈递细胞(APC)谱系的形成,并增强APC功能与存活能力。此外,B7蛋白家族还通过激活巨噬细胞中的NF-κB信号通路参与先天免疫应答。因此,CD86被视为免疫治疗的重要靶点。在霍奇金淋巴瘤患者中,CD86阳性巨噬细胞是预测一线疗法潜在无效的独立标志物。
关键字: B7-2;B7-2蛋白;B7-2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。