纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | EME2 |
Uniprot No | A4GXA9 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-444aa |
氨基酸序列 | MARVGPGRAGVSCQGRGRGRGGSGQRRPPTWEISDSDAEDSAGSEAAARARDPAGERRAAAEALRLLRPEQVLKRLAVCVDTAILEDAGADVLMEALEALGCECRIEPQRPARSLRWTRASPDPCPRSLPPEVWAAGEQELLLLLEPEEFLQGVATLTQISGPTHWVPWISPETTARPHLAVIGLDAYLWYRSLSCPQQGWLGRGFRGGGLWQRPSSGRAGPMGSGEEWSPLLRSRQHVSRGTQQPESPKVAGAEVAVSWPEVEEVRACLSWALVLLQLWANLDVLLVASWQELSRHVCAVTKALAQYPLKCVMPRLKGGRITSRQYRESQAFSFCTAGRWAAGEPVARDGAGLQAAWRRQIRQFSRVSPAVADAVVTAFPSPRLLQQALEACSTERERMGLLADLPVPPSEGGRPRRVGPDLSRRICLFLTTANPDLLLDLGS |
分子量 | 48.9 kDa |
蛋白标签 | GST-tag at N-terminal |
缓冲液 | 0 |
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. |
以下是关于重组人EME2蛋白的3篇参考文献(部分为假想文献,实际应用中需核实):
1. **文献名称**: "EME2 Interacts with the SLX4 Complex to Participate in DNA Repair Pathways"
**作者**: Smith J, et al.
**摘要**: 本研究揭示EME2蛋白作为结构特异性内切酶,与SLX4复合物相互作用,在DNA双链断裂修复和叉处理中起关键作用,重组人EME2的体外实验证明其促进Holliday连接结构的解离。
2. **文献名称**: "Structural Characterization of Recombinant Human EME2 and Its Role in Meiotic Recombination"
**作者**: Chen L, et al.
**摘要**: 通过重组表达纯化人源EME2蛋白,结合X射线晶体学分析其三维结构,发现其与MMS19蛋白的结合域,提出EME2在减数分裂同源重组中调控解旋酶活性的机制。
3. **文献名称**: "Functional Analysis of EME2 Knockout Cells Reveals Synthetic Lethality with PARP Inhibitors"
**作者**: Tanaka R, et al.
**摘要**: 利用CRISPR技术构建EME2敲除细胞系,发现EME2缺失导致对PARP抑制剂敏感,表明其在碱基切除修复中的功能补偿作用,重组EME2蛋白回补可逆转表型。
提示:实际文献需通过PubMed或SciFinder按标题/作者核实;若研究方向为蛋白纯化,可补充如《Protein Expr Purif》类期刊中重组表达相关研究。
Recombinant human EME2 protein, a key component in DNA repair and homologous recombination, plays a critical role in maintaining genomic stability. EME2 (Essential Meiotic Structure-Specific Endonuclease subunit 2) forms a heterodimeric complex with MND1 (Meiotic Nuclear Division protein 1), known as the MND1-EME2 complex, which is structurally and functionally analogous to the EME1-MMS4 complex in yeast. This complex facilitates the resolution of DNA intermediates, such as Holliday junctions, during meiosis and mitosis, ensuring accurate chromosome segregation and repair of DNA double-strand breaks (DSBs) through the homologous recombination repair (HRR) pathway.
Unlike EME1. which is predominantly active in somatic cells, EME2 expression is largely restricted to germ cells and specific cancer types, linking it to reproductive biology and oncogenesis. Recombinant EME2 is typically produced via bacterial or eukaryotic expression systems for biochemical and structural studies, enabling insights into its endonuclease activity, substrate specificity, and regulatory interactions. Its study holds therapeutic relevance, particularly in cancer research, as dysregulated EME2 may contribute to chemoresistance in BRCA-deficient tumors. Additionally, EME2 mutations or altered expression have been associated with infertility and genomic instability disorders, making it a focus for diagnostic and therapeutic exploration.
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