Biotinylated Human IGSF8 Protein, Avitag™,His Tag (MALS verified)
分子别名(Synonym)
IgSF8,CD316,CD81P3,EWI-2,EWI2,KCT-4,LIR-D1,PGRL
表达区间及表达系统(Source)
Biotinylated Human IGSF8 Protein, Avitag,His Tag (IG8-H82Q3) is expressed from human 293 cells (HEK293). It contains AA Arg 28 - Thr 579 (Accession # Q969P0).
Predicted N-terminus: Gly
蛋白结构(Molecular Characterization)

This protein carries an Avi tag (Avitag™) at the N-terminus, followed by a polyhistidine tag.
The protein has a calculated MW of 62.1 kDa. The protein migrates as 65-70 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.
内毒素(Endotoxin)
Less than 1.0 EU per μg by the LAL method.
纯度(Purity)
>90% 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(Background)
IGSF8(免疫球蛋白超家族成员8)是免疫球蛋白蛋白超家族EWI亚家族的成员,也称为EWI-2、KCT-4、LIR-D1和PGRL。它与四链蛋白CD81和CD9相互作用,可能调节它们在某些细胞功能中的作用,包括细胞迁移和病毒感染。IGSF8与CD81协同抑制T细胞迁移,与CD82联合抑制前列腺癌症细胞迁移,以CD9和CD81为关键连接体调节表皮样细胞在层粘连蛋白-5上的再聚集和运动。它还可能在整合素依赖的形态和运动功能中发挥作用,并可能参与成人大脑中神经突起生长的调节和神经网络的维护。最近的研究表明,IGSF8在具有抗原呈递缺陷的恶性细胞上高度表达,并与NK受体相互作用以抑制NK细胞的细胞毒性。
关键字: IGSF8;IGSF8蛋白;IGSF8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。