Cynomolgus PD-1 / PDCD1 Protein, His Tag (MALS verified)
分子別名(Synonym)
PDCD1,PD1,CD279,SLEB2
表達區(qū)間及表達系統(tǒng)(Source)
Cynomolgus PD-1, His Tag (PD1-C52H5) is expressed from human 293 cells (HEK293). It contains AA Leu 25 - Gln 167 (Accession # B0LAJ3).
Predicted N-terminus: Leu 25
蛋白結(jié)構(gòu)(Molecular Characterization)

This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 17.8 kDa. The protein migrates as 30-40 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 / rFC method.
純度(Purity)
>90% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
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(gòu)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
程序性死亡蛋白1(PD-1)亦稱CD279和PDCD1,是一種I型膜蛋白,屬于延伸的CD28/CTLA-4 T細胞調(diào)節(jié)家族成員。PDCD1表達于活化的T細胞、B細胞、巨噬細胞、髓系細胞及部分胸腺細胞表面。PD-1擁有兩個B7家族配體PD-L1與PD-L2。經(jīng)IFN-γ處理后,PD-L1幾乎在所有小鼠腫瘤細胞系(包括PA1骨髓瘤、P815肥大細胞瘤及B16黑色素瘤)中均有表達;而PD-L2表達范圍更為局限,主要存在于樹突狀細胞及少數(shù)腫瘤細胞系。PD-1通過抑制PI3K/AKT通路的激活與轉(zhuǎn)導(dǎo),進而抑制T細胞增殖及IL-1、IL-4、IL-10和IFN-γ等相關(guān)細胞因子的產(chǎn)生。此外,PD-1共交聯(lián)可通過去磷酸化關(guān)鍵信號轉(zhuǎn)導(dǎo)分子來抑制BCR介導(dǎo)的信號。體外實驗中,用PD-L1-Ig處理抗CD3刺激的T細胞可導(dǎo)致T細胞增殖與IFN-γ分泌減少。目前正在研發(fā)靶向PD-1的單克隆抗體,通過增強免疫系統(tǒng)功能用于癌癥治療。
關(guān)鍵字: PD-1;PD-1蛋白;PD-1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(lǐng)域提供關(guān)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(wù)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(shè)有辦公室、研發(fā)中心及生產(chǎn)基地。目前累計服務(wù)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(guān)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(xué)等。