Biotinylated Human VEGF R2 / KDR Protein, Avitag™,His Tag
分子别名(Synonym)
KDR,CD309,FLK1,VEGFR,VEGFR2
表达区间及表达系统(Source)
Biotinylated Human VEGF R2, Avitag,His Tag (KDR-H82E5) is expressed from human 293 cells (HEK293). It contains AA Ala 20 - Glu 764 (Accession # AAI31823).
Predicted N-terminus: Ala 20
蛋白结构(Molecular Characterization)

This protein carries an Avi tag (Avitag™) at the C-terminus, followed by a polyhistidine tag.
The protein has a calculated MW of 85.9 kDa. The protein migrates as 120-150 kDa 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)
>95% 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
激酶插入结构域受体(KDR)亦称为CD309、FLK1、VEGFR、VEGFR2,是血管内皮生长因子受体(VEGFR)的亚型之一。VEGF受体是血管内皮生长因子(VEGF)的特异性受体,主要包含3种亚型(VEGFR-1、2、3)。该受体结构特征为:胞外区由7个免疫球蛋白样结构域构成,跨膜区为单次跨膜片段,胞内区则包含一个分裂的酪氨酸激酶结构域。VEGF-A可与VEGFR-1(Flt-1)及VEGFR-2(KDR/Flk-1)结合。目前已知VEGF诱导的细胞应答反应绝大多数由VEGFR-2介导;而VEGFR-1的功能尚未完全明确,一般认为其可调节VEGFR-2的信号传导。此外,VEGFR-1还可能作为诱骗受体,通过竞争性结合VEGF从而阻止其与VEGFR-2结合(这一机制在胚胎血管形成过程中尤为重要)。值得注意的是,VEGFR-2在VEGF激活状态下能与HIV-1病毒的胞外Tat蛋白相互作用,该作用似乎能促进卡波西肉瘤病灶中的血管生成过程。
关键字: VEGFR2;VEGFR2蛋白;VEGFR2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。