Biotinylated Human VEGF R2 / KDR Protein, Avitag?,His Tag
分子別名(Synonym)
KDR,CD309,FLK1,VEGFR,VEGFR2
表達區(qū)間及表達系統(tǒng)(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
蛋白結構(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.
標記(Labeling)
Biotinylation of this product is performed using Avitag? technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
蛋白標記度(Protein Ratio)
Passed as determined by the HABA assay / binding ELISA.
純度(Purity)
>95% as determined by SDS-PAGE.
制劑(Formulation)
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重構方法(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.
存儲(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.


背景介紹
激酶插入結構域受體(KDR)亦稱為CD309、FLK1、VEGFR、VEGFR2,是血管內(nèi)皮生長因子受體(VEGFR)的亞型之一。VEGF受體是血管內(nèi)皮生長因子(VEGF)的特異性受體,主要包含3種亞型(VEGFR-1、2、3)。該受體結構特征為:胞外區(qū)由7個免疫球蛋白樣結構域構成,跨膜區(qū)為單次跨膜片段,胞內(nèi)區(qū)則包含一個分裂的酪氨酸激酶結構域。VEGF-A可與VEGFR-1(Flt-1)及VEGFR-2(KDR/Flk-1)結合。目前已知VEGF誘導的細胞應答反應絕大多數(shù)由VEGFR-2介導;而VEGFR-1的功能尚未完全明確,一般認為其可調(diào)節(jié)VEGFR-2的信號傳導。此外,VEGFR-1還可能作為誘騙受體,通過競爭性結合VEGF從而阻止其與VEGFR-2結合(這一機制在胚胎血管形成過程中尤為重要)。值得注意的是,VEGFR-2在VEGF激活狀態(tài)下能與HIV-1病毒的胞外Tat蛋白相互作用,該作用似乎能促進卡波西肉瘤病灶中的血管生成過程。
關鍵字: VEGFR2;VEGFR2蛋白;VEGFR2重組蛋白;ACRO;百普賽斯;
百普賽斯集團ACROBiosystems Group(股票代碼:301080)是成立于2010年的跨國生物科技公司,是為全球生物醫(yī)藥、健康產(chǎn)業(yè)領域提供關鍵生物試劑產(chǎn)品及解決方案的行業(yè)平臺型基石企業(yè)。2021年在創(chuàng)業(yè)板上市。百普賽斯集團業(yè)務遍布全球,橫跨亞洲、北美洲、歐洲,在中國、美國、瑞士等12個城市設有辦公室、研發(fā)中心及生產(chǎn)基地。目前累計服務客戶超6000家,與全球Top 20醫(yī)藥企業(yè)均建立了長期、穩(wěn)定的合作伙伴關系。集團旗下?lián)碛衅放艫CROBiosystems百普賽斯、bioSeedin柏思薈、Condense Capital墾拓資本和ACRODiagnostics百斯醫(yī)學等。