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Recombinant Human MHCDQb1 protein

  • 中文名: Ⅱ类主要组织相容性复合体DQβ1(MHCDQb1)重组蛋白
  • 别    名: MHCDQb1;
货号: PA2000-548
Price: ¥询价
数量:
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产品详情

纯度>90%SDS-PAGE.
种属Human
靶点MHCDQb1
Uniprot NoP
内毒素< 0.01EU/μg
表达宿主E.coli
表达区间aa
氨基酸序列N
预测分子量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MHCDQb1(或HLA-DQB1)重组蛋白研究的示例性参考文献。请注意,以下内容为假设性示例,建议通过学术数据库检索真实文献:

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1. **文献名称**: "Expression and structural characterization of recombinant HLA-DQb1 for antigen presentation studies"

**作者**: Tanaka, K. et al.

**摘要**: 本研究利用杆状病毒-昆虫细胞系统表达了重组HLA-DQB1蛋白,并通过亲和层析纯化。利用X射线晶体学解析了其三维结构,揭示了其与自身抗原肽的结合模式,为1型糖尿病等自身免疫疾病的机制研究提供依据。

2. **文献名称**: "Recombinant HLA-DQB1*05:01 production and its role in celiac disease pathogenesis"

**作者**: Rossi, M. & Fernández, A.

**摘要**: 作者在HEK293哺乳动物细胞中重组表达了HLA-DQB1*05:01蛋白,验证其与麦胶蛋白肽段的结合能力,证实该亚型在乳糜泻患者中的异常抗原呈递作用,为开发肽阻断疗法奠定基础。

3. **文献名称**: "High-yield purification of recombinant MHC class II DQb1 for T cell receptor interaction assays"

**作者**: Chen, L. et al.

**摘要**: 报道了一种基于大肠杆菌的重组DQb1胞外域高效表达与纯化策略,通过体外复性获得功能性蛋白,成功用于多发性硬化症患者T细胞受体的特异性检测,推动个性化免疫诊断工具开发。

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**建议检索策略**:

- 在PubMed或Google Scholar中搜索关键词:`"HLA-DQB1 recombinant"`、`"MHC class II DQb1 expression"`、`"recombinant DQb1 purification"`。

- 筛选涉及**蛋白表达纯化**、**结构功能分析**或**疾病机制**研究的文献。

- 关注《Journal of Immunology》《Protein Expression and Purification》等期刊的相关论文。

背景信息

MHCDQb1 recombinant protein is a engineered molecule derived from the major histocompatibility complex (MHC) class II DQ beta chain, a critical component in antigen presentation and immune response regulation. MHC class II molecules, primarily expressed on antigen-presenting cells (APCs), bind exogenous peptide antigens and present them to CD4+ T cells, initiating adaptive immunity. The DQ heterodimer consists of alpha (DQA) and beta (DQB) chains, with polymorphisms in the DQB1 gene linked to autoimmune diseases like type 1 diabetes, celiac disease, and multiple sclerosis. MHCDQb1 typically refers to the recombinant form of the DQB1 chain or its functional domains, often produced in expression systems (e.g., mammalian, insect, or bacterial cells) for research applications.

This protein is widely used to study HLA-DQ-restricted antigen presentation, T cell receptor interactions, and autoimmune mechanisms. Its recombinant nature allows precise control over structural features, such as peptide-binding grooves or polymorphic regions, enabling investigations into allele-specific immune responses. Researchers also employ MHCDQb1 in vaccine development, epitope mapping, and diagnostics for HLA-associated diseases. Additionally, it serves as a tool to explore therapeutic strategies, including blocking pathogenic T cell activation or engineering antigen-specific tolerance.

The production of MHCDQb1 often involves codon-optimized gene sequences, affinity tags (e.g., His-tag), and purification protocols ensuring high stability and bioactivity. Its utility underscores the importance of MHC class II diversity in both health and disease, offering insights into personalized immunotherapies and precision medicine approaches.

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