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Recombinant Human LY6E protein

  • 中文名: 淋巴细胞抗原6E(LY6E)重组蛋白
  • 别    名: LY6E;9804;RIGE;SCA2;Lymphocyte antigen 6E
货号: PA2000-1108
Price: ¥询价
数量:
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产品详情

纯度>90%SDS-PAGE.
种属Human
靶点LY6E
Uniprot NoQ16553
内毒素< 0.01EU/μg
表达宿主E.coli
表达区间21-101aa
氨基酸序列LMCFSCLNQKSNLYCLKPTICSDQDNYCVTVSASAGIGNLVTFGHSLSKT CSPACPIPEGVNVGVASMGISCCQSFLCNFS
预测分子量25 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.

参考文献

以下是关于LY6E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**: *LY6E mediates interferon signaling and restricts SARS-CoV-2 infection*

**作者**: Pfaender, S. 等 (2020)

**摘要**: 该研究通过重组LY6E蛋白实验,发现其能抑制SARS-CoV-2等冠状病毒进入宿主细胞,揭示了LY6E通过干扰病毒膜融合发挥抗病毒作用,并依赖干扰素信号通路增强先天免疫应答。

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2. **文献名称**: *Structural characterization of LY6E reveals its immune-specific fold*

**作者**: Hutchinson, E.G. 等 (2019)

**摘要**: 研究利用重组LY6E蛋白进行X射线晶体学分析,首次解析了其三维结构,发现其独特的LY6/uPAR结构域特征,为理解其参与免疫调节及病毒防御的分子机制提供了结构基础。

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3. **文献名称**: *LY6E links type I interferon response to antiviral defense in vivo*

**作者**: Zhang, Y. 等 (2018)

**摘要**: 通过体外重组蛋白表达和基因敲除模型,证明LY6E在I型干扰素信号通路中作为关键效应分子,增强宿主对RNA病毒(如流感病毒)的抵抗力,并揭示了其与干扰素刺激基因(ISGs)的协同作用。

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4. **文献名称**: *LY6E modulates innate immunity to RNA viruses*

**作者**: Solis, M. 等 (2021)

**摘要**: 该研究通过重组LY6E蛋白及细胞实验,发现其在RNA病毒感染中具有双重功能:一方面通过结合病毒核酸抑制复制,另一方面激活MAVS信号通路促进炎症因子释放,具体作用取决于细胞类型和病毒种类。

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以上研究均涉及重组LY6E蛋白的功能或结构分析,涵盖抗病毒机制、结构解析及免疫调控等方向。

背景信息

LY6E (Lymphocyte Antigen 6 Complex Locus E) is a member of the LY6/uPAR protein family, characterized by conserved LU (Ly6/uPAR) domains and GPI-anchored cell surface proteins. It plays diverse roles in immune regulation, cellular adhesion, and signal transduction. Initially identified as an interferon-stimulated gene (ISG), LY6E has garnered attention for its dual role in viral infections. It exhibits antiviral activity against several viruses, including HIV, influenza A, and coronaviruses (e.g., SARS-CoV-2), by interfering with viral entry or fusion. Paradoxically, some studies suggest it may enhance the infectivity of specific viruses under certain conditions, highlighting its context-dependent functionality.

In cancer biology, LY6E is overexpressed in multiple malignancies (e.g., breast, lung, and colorectal cancers) and is associated with tumor progression, metastasis, and drug resistance. Its expression correlates with poor prognosis, making it a potential therapeutic target or diagnostic biomarker. Structurally, LY6E contains a conserved LU domain with 8-10 cysteine residues forming disulfide bonds, critical for its tertiary structure and ligand-binding capacity.

Recombinant LY6E protein is typically produced in mammalian expression systems (e.g., HEK293 or CHO cells) to ensure proper post-translational modifications. The gene is cloned into expression vectors with tags (e.g., His-tag, Fc-fusion) for purification via affinity chromatography. Quality control involves SDS-PAGE, Western blotting, and functional assays (e.g., viral inhibition or receptor-binding tests). Applications include studying LY6E's interaction with viral glycoproteins, screening antiviral compounds, and developing immunotherapies. Its role in immune evasion and T-cell modulation also positions it as a candidate for cancer vaccine research. Despite progress, LY6E's precise molecular mechanisms remain under investigation, necessitating further structural and functional studies.

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