纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | TDH |
Uniprot No | P20132 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-328aa |
氨基酸序列 | MMSGEPLHVKTPIRDSMALSKMAGTSVYLKMDSAQPSGSFKIRGIGHFCKRWAKQGCAHFVCSSAGNAGMAAAYAARQLGVPATIVVPSTTPALTIERLKNEGATVKVVGELLDEAFELAKALAKNNPGWVYIPPFDDPLIWEGHASIVKELKETLWEKPGAIALSVGGGGLLCGVVQGLQEVGWGDVPVIAMETFGAHSFHAATTAGKLVSLPKITSVAKALGVKTVGAQALKLFQEHPIFSEVISDQEAVAAIEKFVDDEKILVEPACGAALAAVYSHVIQKLQLEGNLRTPLPSLVVIVCGGSNISLAQLRALKEQLGMTNRLPK |
预测分子量 | 42.1 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3篇与TDH(耐热直接溶血素)重组蛋白相关的文献摘要示例:
1. **《Expression and Purification of Recombinant Thermostable Direct Hemolysin from Vibrio parahaemolyticus》**
- **作者**: Yamamoto, K., et al.
- **摘要**: 本研究在大肠杆菌中成功表达并纯化了重组TDH蛋白,通过优化诱导条件提高可溶性表达。纯化后的蛋白保留了天然溶血活性,为后续致病机制研究提供了工具。
2. **《Structural Analysis of Recombinant TDH by X-ray Crystallography》**
- **作者**: Zhang, Y., et al.
- **摘要**: 利用重组TDH蛋白解析了其三维晶体结构,揭示了溶血活性关键结构域,并发现钙离子结合位点对其热稳定性的调控作用,为抑制药物设计提供结构基础。
3. **《Development of a TDH-Specific ELISA Using Recombinant Antigen》**
- **作者**: Lee, S.H., et al.
- **摘要**: 开发基于重组TDH蛋白的高灵敏度ELISA检测方法,可特异性识别副溶血性弧菌感染样本中的TDH抗体,显著提升临床诊断效率。
注:以上文献为示例性内容,实际引用时需查询具体数据库(如PubMed/Google Scholar)获取真实发表信息。
**Background of TDH Recombinant Protein**
TDH (thermostable direct hemolysin) is a key virulence factor produced by *Vibrio parahaemolyticus*, a Gram-negative bacterium commonly associated with seafood-borne gastroenteritis. First identified in the 1960s, TDH is a pore-forming toxin that disrupts host cell membranes, leading to cell lysis, inflammation, and diarrhea. Its thermostability allows it to retain activity even after cooking, contributing to its role in foodborne illness. The *tdh* gene, encoding this toxin, is often used as a marker to identify pathogenic strains of *V. parahaemolyticus*.
Recombinant TDH protein is produced through genetic engineering, typically by cloning the *tdh* gene into expression systems like *E. coli*. This approach enables large-scale, purified TDH production while avoiding risks associated with handling live pathogenic bacteria. Recombinant TDH retains the biological and antigenic properties of the native toxin, making it invaluable for research and diagnostics.
Studies on recombinant TDH focus on understanding its structure-function relationships, mechanisms of cytotoxicity, and its role in bacterial pathogenesis. It is widely used to develop detection assays, such as ELISA, and to generate antibodies for diagnosing *V. parahaemolyticus* infections. Additionally, recombinant TDH serves as a critical antigen in vaccine development and a tool for screening potential inhibitors targeting its hemolytic activity.
Despite its pathogenic role, TDH’s unique properties have spurred interest in biotechnological applications, including its use as a model for studying pore-forming toxins. Ongoing research aims to balance its utility in diagnostics and therapeutics with strategies to mitigate its harmful effects during infections.
在生物科技领域,蛋白研发与生产是前沿探索的关键支撑。艾普蒂作为行业内的创新者,凭借自身卓越的研发实力,每年能成功研发 1000 多种全新蛋白,在重组蛋白领域不断突破。 在重组蛋白生产过程中,艾普蒂积累了丰富且成熟的经验。从结构复杂的跨膜蛋白,到具有特定催化功能的酶、参与信号传导的激酶,再到用于免疫研究的病毒抗原,艾普蒂都能实现高效且稳定的生产。 这一成就离不开艾普蒂强大的技术平台。我们构建了多元化的重组蛋白表达系统,昆虫细胞、哺乳动物细胞以及原核蛋白表达系统协同运作。不同的表达系统各有优势,能够满足不同客户对重组蛋白的活性、产量、成本等多样化的需求,从而提供高品质、低成本的活性重组蛋白。 艾普蒂提供的不只是产品,更是从源头到终端的一站式解决方案。从最初的基因合成,精准地构建出符合要求的基因序列,到载体构建,为蛋白表达创造适宜的环境,再到蛋白质表达和纯化,每一个环节都严格把控。我们充分尊重客户的个性化需求,在表达 / 纯化标签的选择、表达宿主的确定等方面,为客户量身定制专属方案。 同时,艾普蒂还配备了多种纯化体系,能够应对不同特性蛋白的纯化需求。这种灵活性和专业性,极大地提高了蛋白表达和纯化的成功率,让客户的研究项目得以顺利推进,在生物科技的探索道路上助力每一位科研工作者迈向成功。
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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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