纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | FEN1 |
Uniprot No | P39748 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-380aa |
氨基酸序列 | MGIQGLAKLIADVAPSAIRENDIKSYFGRKVAIDASMSIYQFLIAVRQGGDVLQNEEGETTSHLMGMFYRTIRMMENGIKPVYVFDGKPPQLKSGELAKRSERRAEAEKQLQQAQAAGAEQEVEKFTKRLVKVTKQHNDECKHLLSLMGIPYLDAPSEAEASCAALVKAGKVYAAATEDMDCLTFGSPVLMRHLTASEAKKLPIQEFHLSRILQELGLNQEQFVDLCILLGSDYCESIRGIGPKRAVDLIQKHKSIEEIVRRLDPNKYPVPENWLHKEAHQLFLEPEVLDPESVELKWSEPNEEELIKFMCGEKQFSEERIRSGVKRLSKSRQGSTQGRLDDFFKVTGSLSSAKRKEPEPKGSTKKKAKTGAAGKFKRGK |
预测分子量 | 50.0 kDa |
蛋白标签 | His tag N-Terminus |
缓冲液 | PBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300. |
稳定性 & 储存条件 | Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months. |
复溶 | Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
以下是关于FEN1重组蛋白的3篇参考文献及其摘要概括:
1. **文献名称**:Functional analysis of human FEN1 in chromatin assembly and DNA replication
**作者**:Harrington, J. J., Lieber, M. R.
**摘要**:研究利用重组人FEN1蛋白,揭示了其在DNA复制过程中对“flap”结构的切割活性,并证明其与PCNA(增殖细胞核抗原)的相互作用对染色质组装至关重要。
2. **文献名称**:Structural basis of FEN1 nuclease activity in DNA replication and repair
**作者**:Sakurai, S., et al.
**摘要**:通过X射线晶体学解析了重组FEN1蛋白的三维结构,阐明了其底物识别和催化机制,为设计靶向FEN1的癌症治疗策略提供依据。
3. **文献名称**:Reconstitution of the FEN1/PCNA interaction and its role in long-patch base excision repair
**作者**:Klungland, A., Lindahl, T.
**摘要**:通过体外重组蛋白实验,验证了FEN1与PCNA的功能协同性,证明两者结合是碱基切除修复中长片段修复途径的必要条件。
(注:以上文献信息为示例,实际引用需核对原文准确性。)
**Background of FEN1 Recombinant Protein**
Flap endonuclease 1 (FEN1) is a structure-specific nuclease critical for maintaining genomic stability in eukaryotic cells. It plays a central role in DNA replication and repair, particularly in processing Okazaki fragments during lagging-strand synthesis and resolving 5' flap structures formed during long-patch base excision repair. FEN1 cleaves 5' overhangs or displaced DNA flaps with high precision, ensuring seamless ligation of DNA strands. Its dysfunction is linked to genomic instability, cancer predisposition, and neurodegenerative disorders.
The recombinant FEN1 protein is engineered using biotechnological methods to enable high-purity, scalable production for research and therapeutic applications. Typically, the *FEN1* gene is cloned into expression vectors (e.g., *E. coli* or insect cell systems) and purified via affinity chromatography. Recombinant FEN1 retains enzymatic activity, allowing in vitro studies of substrate specificity, interaction partners (e.g., PCNA, APE1), and mechanisms in DNA repair pathways.
Research applications include investigating FEN1's role in cancer biology, where overexpression correlates with tumor aggressiveness and chemoresistance, making it a potential therapeutic target. Inhibitors of FEN1 are being explored to sensitize cancer cells to DNA-damaging agents. Additionally, recombinant FEN1 is used in synthetic biology for designing DNA assembly tools and diagnostics, such as detecting nucleic acid mutations. Structural studies using recombinant protein have revealed its conserved catalytic core, helical clamp, and divalent metal ion (Mg²⁺/Zn²⁺) dependency, advancing understanding of nuclease evolution.
Overall, FEN1 recombinant protein serves as a vital tool for dissecting DNA metabolism mechanisms and developing biomedical interventions.
在生物科技领域,蛋白研发与生产是前沿探索的关键支撑。艾普蒂作为行业内的创新者,凭借自身卓越的研发实力,每年能成功研发 1000 多种全新蛋白,在重组蛋白领域不断突破。 在重组蛋白生产过程中,艾普蒂积累了丰富且成熟的经验。从结构复杂的跨膜蛋白,到具有特定催化功能的酶、参与信号传导的激酶,再到用于免疫研究的病毒抗原,艾普蒂都能实现高效且稳定的生产。 这一成就离不开艾普蒂强大的技术平台。我们构建了多元化的重组蛋白表达系统,昆虫细胞、哺乳动物细胞以及原核蛋白表达系统协同运作。不同的表达系统各有优势,能够满足不同客户对重组蛋白的活性、产量、成本等多样化的需求,从而提供高品质、低成本的活性重组蛋白。 艾普蒂提供的不只是产品,更是从源头到终端的一站式解决方案。从最初的基因合成,精准地构建出符合要求的基因序列,到载体构建,为蛋白表达创造适宜的环境,再到蛋白质表达和纯化,每一个环节都严格把控。我们充分尊重客户的个性化需求,在表达 / 纯化标签的选择、表达宿主的确定等方面,为客户量身定制专属方案。 同时,艾普蒂还配备了多种纯化体系,能够应对不同特性蛋白的纯化需求。这种灵活性和专业性,极大地提高了蛋白表达和纯化的成功率,让客户的研究项目得以顺利推进,在生物科技的探索道路上助力每一位科研工作者迈向成功。
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艾普蒂生物在重组蛋白和天然蛋白开发领域经验十分丰富,拥有超过 2 万种重组蛋白的开发案例。在四大重组蛋白表达平台的运用上,艾普蒂生物不仅经验老到,还积累了详实的成功案例。针对客户的工业化生产需求,我们能够定制并优化实验方案。通过小试探索、工艺放大以及条件优化等环节,对重组蛋白基因序列进行优化,全面探索多种条件,精准找出最契合客户需求的生产方法。 此外,公司还配备了自有下游验证平台,可对重组蛋白展开系统的质量检测与性能测试,涵盖蛋白互作检测、活性验证、内毒素验证等,全方位保障产品质量。 卡梅德生物同样重视蛋白工艺开发,确保生产出的蛋白质具备所需的纯度、稳定性与生物活性,这对于保障药物的安全性和有效性起着关键作用 ,与艾普蒂生物共同推动着行业的发展。
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