Human CD39 / ENTPD1 Protein, His Tag (active enzyme, MALS verified)
分子別名(Synonym)
CD39,ENTPD1,NTPDase 1,Entpd1,Ecto-ATPDase 1,Ecto-ATPase 1
表達區(qū)間及表達系統(tǒng)(Source)
Human CD39, His Tag (CD9-H52H4) is expressed from human 293 cells (HEK293). It contains AA Thr 38 - Val 478 (Accession # P49961-1).
蛋白結構(Molecular Characterization)

This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 52.3 kDa. The protein migrates as 65-80 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
內(nèi)毒素(Endotoxin)
Less than 1.0 EU per μg by the LAL method.
純度(Purity)
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
制劑(Formulation)
Lyophilized from 0.22 μm filtered solution in Tris and NaCl, pH8.0 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(Background)
CD39在神經(jīng)系統(tǒng)中也被稱為外核苷三磷酸二磷酸水解酶1、ENTPD1、NTPDase 1、外ATP酶1,可以水解ATP和其他核苷酸來調(diào)節(jié)嘌呤能神經(jīng)傳遞。也可能通過將血小板活化ADP水解為AMP來預防血小板聚集。水解ATP和ADP同樣好。NTPDase-1最初被描述為CD39,一種B淋巴細胞表面標志物,但它也存在于自然殺傷細胞、T細胞和一些內(nèi)皮細胞的表面。調(diào)節(jié)性T細胞(Tregs)通過多種非冗余、細胞接觸依賴和獨立的機制介導免疫抑制,越來越多的證據(jù)表明CD39-CD73-腺苷途徑起著重要作用。CD39外核苷酸酶是級聯(lián)反應的限速酶,導致抑制性腺苷的產(chǎn)生,從而改變CD4和CD8 T細胞以及自然殺傷細胞的抗腫瘤活性。
關鍵字: CD39;CD39蛋白;CD39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。