Mouse IL-2 Protein, His Tag
分子別名(Synonym)
IL2,TCGF,lymphokine,Interleukin 2
表達區(qū)間及表達系統(tǒng)(Source)
Mouse IL-2, His Tag (IL2-M52H3) is expressed from human 293 cells (HEK293). It contains AA Ala 21 - Gln 169 (Accession # P04351-1).
Predicted N-terminus: His
蛋白結(jié)構(gòu)(Molecular Characterization)

This protein carries a polyhistidine tag at the N-terminus.
The protein has a calculated MW of 19.1 kDa. The protein migrates as 22-25 kDa when calibrated against Star Ribbon Pre-stained Protein Marker 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)
>90% 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(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(Background)
白細胞介素-2(IL-2)是一種白介素,一種細胞因子免疫系統(tǒng)信號分子,是一種促白細胞激素,在身體對微生物感染的自然反應(yīng)中起著重要作用,并有助于區(qū)分外來(非自身)和自身。IL-2通過與淋巴細胞(負責免疫的細胞)表達的IL-2受體結(jié)合來介導(dǎo)其作用。成熟的人IL-2與小鼠和大鼠IL-2的aa序列同源性分別為56%和66%。人和小鼠IL-2具有跨物種活性。IL-2受體由三個亞基組成,它們以不同的預(yù)形成復(fù)合物存在于細胞表面。IL-2在胸腺T細胞發(fā)育過程中也是必要的,用于成熟被稱為調(diào)節(jié)性T細胞(T-reg)的獨特T細胞亞群。從胸腺中排出后,T-Regs的功能是防止其他T細胞識別和對抗“自身抗原”,這可能會導(dǎo)致“自身免疫”。T-Regs通過阻止反應(yīng)細胞產(chǎn)生IL-2來實現(xiàn)這一目的。因此,需要IL-2來區(qū)分自我和非自我,這是免疫系統(tǒng)的另一個獨特特征。
關(guān)鍵字: IL-2;IL-2蛋白;IL-2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)學等。