纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | PRMT1 |
Uniprot No | Q99873-3 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-343aa |
氨基酸序列 | MEVSCGQAES SEKPNAEDMT SKDYYFDSYA HFGIHEEMLK DEVRTLTYRN SMFHNRHLFK DKVVLDVGSG TGILCMFAAK AGARKVIGIE CSSISDYAVK IVKANKLDHV VTIIKGKVEE VELPVEKVDI IISEWMGYCL FYESMLNTVL YARDKWLAPD GLIFPDRATL YVTAIEDRQY KDYKIHWWEN VYGFDMSCIK DVAIKEPLVD VVDPKQLVTN ACLIKEVDIY TVKVEDLTFT SPFCLQVKRN DYVHALVAYF NIEFTRCHKR TGFSTSPESP YTHWKQTVFY MEDYLTVKTG EEIFGTIGMR PNAKNNRDLD FTIDLDFKGQ LCELSCSTDY RMR |
预测分子量 | 68 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PRMT1重组蛋白的3篇参考文献,包含文献名称、作者及摘要内容概括:
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1. **文献名称**:*Protein arginine methyltransferases and cancer*
**作者**:Mark T. Bedford, Steven G. Clarke
**摘要**:该综述系统总结了PRMT家族(包括PRMT1)的功能及其在癌症中的作用,强调了重组PRMT1蛋白在体外研究中的应用,如底物甲基化机制和酶动力学分析,为靶向治疗提供了理论基础。
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2. **文献名称**:*Structure and function of protein arginine methyltransferase PRMT1*
**作者**:Jian Tang, Andrew P. Waters, Gary D. Glick
**摘要**:本研究利用重组人源PRMT1蛋白解析其晶体结构,揭示了催化核心区域的关键氨基酸残基及其底物结合模式,阐明了精氨酸甲基化反应的分子机制。
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3. **文献名称**:*PRMT1 regulates tumor cell plasticity and stemness via histone H4 arginine methylation*
**作者**:Hua Wei, Kuangyu Yen, Yue Chen
**摘要**:通过重组PRMT1蛋白进行体外甲基化实验,证明其通过组蛋白H4的R3位点甲基化调控肿瘤干细胞的可塑性,并验证了其在乳腺癌细胞中的促癌功能。
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4. **文献名称**:*Substrate specificity of PRMT1: Role of dimerization and co-activator binding*
**作者**:Yanzhong Yang, Mark T. Bedford
**摘要**:研究利用重组PRMT1蛋白结合质谱技术,鉴定了其特异性底物结合域,并发现二聚化对酶活性的调控作用,揭示了PRMT1在信号转导中的选择性机制。
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这些文献覆盖了PRMT1重组蛋白的结构、功能、机制及疾病关联研究,可作为相关研究的参考基础。
PRMT1 (Protein Arginine Methyltransferase 1) is a pivotal enzyme in eukaryotic cells responsible for catalyzing the post-translational methylation of arginine residues on histones and non-histone proteins. As the predominant type I arginine methyltransferase, it transfers methyl groups from S-adenosylmethionine (SAM) to specific arginine residues, generating monomethylarginine (MMA) and asymmetric dimethylarginine (aDMA). This modification regulates diverse cellular processes including transcriptional regulation, DNA repair, RNA processing, and signal transduction. PRMT1 is particularly notable for its role in epigenetics through methylation of histone H4 at arginine 3 (H4R3me2a), a modification linked to chromatin remodeling and gene activation.
Structurally, PRMT1 contains a conserved catalytic core with a SAM-binding domain and substrate recognition motifs. Its activity depends on dimerization and interactions with regulatory partners. Recombinant PRMT1 proteins, typically produced in E. coli or mammalian expression systems, retain enzymatic activity and are essential tools for studying methylation mechanisms. Purification methods often involve affinity tags (e.g., GST or His-tag) followed by size-exclusion chromatography to ensure homogeneity.
Research has implicated PRMT1 in various diseases, particularly cancer. It promotes oncogenesis by methylating substrates like RUNX1. EGFR, and FOXO1. influencing cell proliferation and apoptosis. Aberrant PRMT1 expression correlates with leukemia, breast cancer, and lung cancer progression. In neurodegenerative disorders, PRMT1-mediated methylation modulates TDP-43 aggregation and stress granule dynamics. Additionally, its role in metabolic diseases involves lipid metabolism regulation through PPARγ methylation.
The development of PRMT1-specific inhibitors (e.g., MS023. GSK3368715) highlights its therapeutic potential. Recombinant PRMT1 enables high-throughput drug screening and mechanistic studies, providing insights into substrate specificity and methylation crosstalk with other post-translational modifications. Its conserved function across species and versatile applications in biochemistry make it a critical target for both basic research and pharmaceutical development.
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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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