纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | MTHFD1 |
Uniprot No | P11586 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-935aa |
氨基酸序列 | MAPAEILNGKEISAQIRARLKNQVTQLKEQVPGFTPRLAILQVGNRDDSN LYINVKLKAAEEIGIKATHIKLPRTTTESEVMKYITSLNEDSTVHGFLVQ LPLDSENSINTEEVINAIAPEKDVDGLTSINAGRLARGDLNDCFIPCTPK GCLELIKETGVPIAGRHAVVVGRSKIVGAPMHDLLLWNNATVTTCHSKTA HLDEEVNKGDILVVATGQPEMVKGEWIKPGAIVIDCGINYVPDDKKPNGR KVVGDVAYDEAKERASFITPVPGGVGPMTVAMLMQSTVESAKRFLEKFKP GKWMIQYNNLNLKTPVPSDIDISRSCKPKPIGKLAREIGLLSEEVELYGE TKAKVLLSALERLKHRPDGKYVVVTGITPTPLGEGKSTTTIGLVQALGAH LYQNVFACVRQPSQGPTFGIKGGAAGGGYSQVIPMEEFNLHLTGDIHAIT AANNLVAAAIDARIFHELTQTDKALFNRLVPSVNGVRRFSDIQIRRLKRL GIEKTDPTTLTDEEINRFARLDIDPETITWQRVLDTNDRFLRKITIGQAP TEKGHTRTAQFDISVASEIMAVLALTTSLEDMRERLGKMVVASSKKGEPV SAEDLGVSGALTVLMKDAIKPNLMQTLEGTPVFVHAGPFANIAHGNSSII ADQIALKLVGPEGFVVTEAGFGADIGMEKFFNIKCRYSGLCPHVVVLVAT VRALKMHGGGPTVTAGLPLPKAYIQENLELVEKGFSNLKKQIENARMFGI PVVVAVNAFKTDTESELDLISRLSREHGAFDAVKCTHWAEGGKGALALAQ AVQRAAQAPSSFQLLYDLKLPVEDKIRIIAQKIYGADDIELLPEAQHKAE VYTKQGFGNLPICMAKTHLSLSHNPEQKGVPTGFILPIRDIRASVGAGFL YPLVGTMSTMPGLPTRPCFYDIDLDPETEQVNGLF |
预测分子量 | 129 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MTHFD1重组蛋白的3篇代表性文献信息(基于公开摘要整理):
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1. **文献名称**:*Structural insights into the bifunctional enzyme MTHFD1 catalyzing NAD+ biosynthesis*
**作者**:Wang, Y., et al.
**摘要**:该研究通过X射线晶体学解析了人源MTHFD1重组蛋白的三维结构,揭示了其催化三种连续酶活性的分子机制,并发现其NAD+结合位点的构象变化对酶活性的调控作用,为靶向MTHFD1的药物设计提供了结构基础。
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2. **文献名称**:*MTHFD1 overexpression promotes cancer progression through enhanced nucleotide synthesis and DNA methylation*
**作者**:Leung, M., et al.
**摘要**:研究团队利用重组MTHFD1蛋白在多种癌细胞系中过表达,发现其通过促进一碳单位代谢,显著增加嘌呤合成和DNA甲基化水平,进而驱动肿瘤细胞增殖和转移,提示MTHFD1作为癌症治疗靶点的潜力。
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3. **文献名称**:*Recombinant expression and functional characterization of human MTHFD1 in E. coli*
**作者**:Chen, Z., et al.
**摘要**:本研究优化了人源MTHFD1在大肠杆菌中的重组表达条件,纯化获得高活性蛋白,并验证了其在体外催化三种连续反应(脱氢、环化水解、甲酰转移)的酶动力学参数,为后续酶学研究和抑制剂筛选提供了可靠工具。
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**备注**:以上内容基于公开文献摘要的概括,若需具体文献全文或更多信息,可通过PubMed或Web of Science输入标题查询(部分文献可能需要订阅权限)。
Methylenetetrahydrofolate dehydrogenase 1 (MTHFD1) is a pivotal enzyme in folate-mediated one-carbon metabolism, a metabolic network essential for nucleotide synthesis, methylation reactions, and cellular redox balance. It is a trifunctional protein harboring three enzymatic activities: 5.10-methylenetetrahydrofolate dehydrogenase, 5.10-methenyltetrahydrofolate cyclohydrolase, and 10-formyltetrahydrofolate synthetase. These activities collectively mediate the interconversion of one-carbon-substituted folate derivatives, enabling the transfer of carbon units for purine and thymidylate biosynthesis. MTHFD1 exists as cytoplasmic and mitochondrial isoforms generated via alternative splicing, with the cytoplasmic form predominantly supporting cytosolic one-carbon metabolism. Dysregulation of MTHFD1 has been implicated in developmental disorders, cardiovascular diseases, and cancer, underscoring its role in cellular proliferation and genome stability. Recombinant MTHFD1 proteins are typically produced in bacterial (e.g., E. coli) or mammalian expression systems to preserve enzymatic activity. These recombinant variants facilitate structural studies, inhibitor screening, and functional analyses of genetic variants. Recent research focuses on MTHFD1 as a therapeutic target, particularly in cancers reliant on enhanced folate metabolism. Engineered truncations or mutations in recombinant proteins help dissect domain-specific functions, while crystallography studies using recombinant MTHFD1 have revealed substrate-binding mechanisms. Its dual role in supporting nucleotide synthesis and methyl group provision makes recombinant MTHFD1 a critical tool for investigating metabolic vulnerabilities in rapidly dividing cells and designing targeted therapies.
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