Human IL-7 Protein, premium grade
分子別名(Synonym)
IL7,Interleukin-7
表達區(qū)間及表達系統(tǒng)(Source)
Human IL-7, premium grade (IL7-H4219) is expressed from human 293 cells (HEK293). It contains AA Asp 26 - His 177 (Accession # P13232-1).
Predicted N-terminus: Asp 26
本品在嚴格遵循藥品級標準的質(zhì)控體系下生產(chǎn),涵蓋無菌及內(nèi)毒素檢測等多項測試。其產(chǎn)品性能經(jīng)嚴格驗證,確保在臨床前早期階段的細胞培養(yǎng)及其他應(yīng)用中具有良好兼容性。
GMP-L07H24是本產(chǎn)品IL7-H4219的GMP級別版本。兩種蛋白質(zhì)的功能參數(shù)完全一致,可確保終端用戶從臨床前研究到后期臨床試驗階段的順利過渡。
蛋白結(jié)構(gòu)(Molecular Characterization)

This protein carries no "tag".
The protein has a calculated MW of 17.4 kDa. The protein migrates as 23 kDa and 28 kDa (±3 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 0.01 EU per μg by the LAL method / rFC method.
宿主蛋白殘留(Host Cell Protein)
<0.5 ng/μg of protein tested by ELISA.
宿主核酸殘留(Host Cell DNA)
<0.02 ng/μg of protein tested by DNA Fluorescent Staining method.
無菌(Sterility)
Negative
支原體(Mycoplasma)
Negative
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(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
白細胞介素7(IL-7)是由紅骨髓及胸腺基質(zhì)細胞分泌的造血生長因子,亦可由角質(zhì)形成細胞、樹突狀細胞、肝細胞、神經(jīng)元與上皮細胞產(chǎn)生(但淋巴細胞不產(chǎn)生),其核心功能包括:刺激多能造血干細胞向淋巴祖細胞分化、促進淋巴譜系全細胞(B/T/NK細胞)增殖,并在B細胞成熟特定階段及T/NK細胞存活/發(fā)育/穩(wěn)態(tài)維持中起關(guān)鍵作用;該細胞因子與肝細胞生長因子(HGF)形成異源二聚體作為前-前B細胞生長刺激因子,通過由IL-7Rα鏈和共同γ鏈受體組成的異二聚體受體介導(dǎo)信號,同時會促進血液惡性腫瘤(急性淋巴細胞白血病、T細胞淋巴瘤)發(fā)展——臨床檢測發(fā)現(xiàn)HIV感染者血漿中IL-7水平升高,其作為免疫治療劑已在多種惡性腫瘤及HIV感染的臨床前動物實驗和人體臨床試驗中開展評估,并對異基因干細胞移植后的免疫重建具有改善潛力。
關(guān)鍵字: IL-7;IL-7蛋白;IL-7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。