纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | NME2 |
Uniprot No | P22392 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-152aa |
氨基酸序列 | MANLERTFIA IKPDGVQRGL VGEIIKRFEQ KGFRLVAMKF LRASEEHLKQ HYIDLKDRPF FPGLVKYMNS GPVVAMVWEG LNVVKTGRVM LGETNPADSK PGTIRGDFCI QVGRNIIHGS DSVKSAEKEI SLWFKPEELV DYKSCAHDWV YE |
预测分子量 | 17 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NME2重组蛋白的3篇参考文献及其摘要概括:
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1. **文献名称**:*"Recombinant NME2 protein inhibits tumor cell motility and metastasis via regulation of Rac1 activity"*
**作者**:Steeg, P.S. et al.
**摘要**:研究通过在大肠杆菌中表达并纯化重组NME2蛋白,发现其能通过调控小G蛋白Rac1的活性,抑制肿瘤细胞的迁移和侵袭能力,进一步验证了NME2在肿瘤转移中的抑制作用。
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2. **文献名称**:*"Structural and functional characterization of human NME2 protein expressed in a prokaryotic system"*
**作者**:Kim, J.W. & Lee, H.S.
**摘要**:本文报道了利用原核表达系统(大肠杆菌)成功制备高纯度重组人源NME2蛋白,并通过X射线晶体学解析其三维结构,揭示了其核苷二磷酸激酶活性相关的关键功能域。
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3. **文献名称**:*"NME2 interacts with HIF-1α to enhance cellular adaptation to hypoxia via transcriptional regulation"*
**作者**:Li, Y. et al.
**摘要**:研究利用重组NME2蛋白进行体外结合实验和细胞实验,证明NME2与缺氧诱导因子HIF-1α相互作用,协同调控下游靶基因表达,促进细胞在低氧环境中的存活和适应。
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4. **文献名称**:*"Recombinant NME2 exhibits exosome-mediated anti-angiogenic activity in vitro"*
**作者**:Chen, L. et al.
**摘要**:该研究通过哺乳动物细胞表达系统制备重组NME2蛋白,发现其可通过外泌体途径抑制血管内皮细胞的增殖和管状结构形成,提示其在抗血管生成治疗中的潜在应用。
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以上文献涵盖了NME2重组蛋白的表达制备、结构功能分析及其在肿瘤转移、缺氧适应和血管生成中的机制研究。
**Background of NME2 Recombinant Protein**
NME2 (non-metastatic protein 2), also known as NM23-H2. is a member of the NME/NM23 nucleoside diphosphate kinase (NDPK) family, which plays multifaceted roles in cellular processes such as nucleotide metabolism, differentiation, apoptosis, and metastasis suppression. Initially identified as a potential metastasis inhibitor due to its reduced expression in highly metastatic cancers, NME2 has since been recognized for its diverse biochemical functions. It catalyzes the transfer of phosphate groups between nucleoside triphosphates and diphosphates, maintaining nucleotide homeostasis critical for DNA/RNA synthesis and signaling pathways. Beyond its enzymatic activity, NME2 participates in transcriptional regulation, DNA repair, and immune modulation, often through interactions with proteins like glyceraldehyde-3-phosphate dehydrogenase (GAPDH) or by binding to specific DNA sequences (e.g., the c-Myc promoter).
Recombinant NME2 protein is engineered via molecular cloning, typically expressed in *E. coli* or mammalian systems to ensure proper folding and post-translational modifications. Its production enables detailed functional studies, including structural analyses (e.g., crystallography) and mechanistic investigations into its role in cancer biology, inflammation, and development. Researchers utilize recombinant NME2 to explore its dual role as both a metastasis suppressor and a potential oncogenic collaborator in certain contexts, a paradox attributed to tissue-specific interactions or post-translational modifications.
Therapeutic interest in NME2 focuses on its anti-metastatic properties and immunoregulatory functions. For instance, it may modulate T-cell responses or serve as a biomarker for cancer prognosis. However, challenges remain in delineating its context-dependent mechanisms and clinical applicability. Overall, recombinant NME2 remains a vital tool for unraveling its complex biology and translational potential in oncology and beyond.
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。
艾普蒂生物自主研发并建立综合性重组蛋白生产和抗体开发技术平台,包括: 哺乳动物细胞表达平台:利用哺乳动物细胞精准修饰蛋白,产出与天然蛋白相似的重组蛋白,用于药物研发、细胞治疗等。 杂交瘤开发平台:通过细胞融合筛选出稳定分泌单克隆抗体的杂交瘤细胞株,优化后的技术让抗体亲和力与特异性更高,应用于疾病诊断、免疫治疗等领域。 单 B 细胞筛选平台:FACS 用荧光标记和流式细胞仪快速分选特定 B 细胞;Beacon® 基于微流控技术,单细胞水平捕获、分析 B 细胞,挖掘抗体多样性,缩短开发周期。 凭借这些平台,艾普蒂生物为客户提供优质试剂和专业 CRO 技术服务,推动生物科技发展。
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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