纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | TLR5 |
Uniprot No | O60602 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 517-634aa |
氨基酸序列 | LPPGVFSHLTALRGLSLNSNRLTVLSHNDLPANLEILDISRNQLLAPNPD VFVSLSVLDITHNKFICECELSTFINWLNHTNVTIAGPPADIYCVYPDSF SGVSLFSLSTEGCDEEEV |
预测分子量 | 39 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TLR5重组蛋白的3篇代表性文献及其摘要概括:
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1. **文献名称**:*Structural Basis of TLR5-Flagellin Recognition and Signaling*
**作者**:Alexei V. Letarsec et al.
**摘要**:通过X射线晶体学解析了TLR5重组蛋白与细菌鞭毛蛋白(flagellin)的复合物结构,揭示了TLR5通过其N端结构域特异性识别flagellin的D1结构域,阐明了TLR5激活的分子机制。
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2. **文献名称**:*Recombinant TLR5 Agonist as a Potent Vaccine Adjuvant*
**作者**:Kai-Lin Hong et al.
**摘要**:研究证明重组TLR5蛋白与flagellin片段结合后,可显著增强抗原呈递细胞(APC)的活化,并促进Th1/Th17免疫应答,提出其作为新型疫苗佐剂的潜在应用价值。
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3. **文献名称**:*TLR5-Dependent Regulation of Intestinal Inflammation*
**作者**:Jennifer K. Grenz et al.
**摘要**:利用重组TLR5蛋白和小鼠模型,发现TLR5通过调控肠道上皮细胞NF-κB通路维持黏膜屏障完整性,其功能失调与炎症性肠病(IBD)的发病机制密切相关。
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**备注**:以上文献信息为虚拟示例,实际研究需通过PubMed或Web of Science等平台检索。建议结合关键词“TLR5 recombinant protein”或“TLR5 signaling”查找近期高引用论文。
**Background of TLR5 Recombinant Protein**
Toll-like receptor 5 (TLR5) is a transmembrane protein belonging to the Toll-like receptor family, which plays a pivotal role in the innate immune system by detecting pathogen-associated molecular patterns (PAMPs). Specifically, TLR5 recognizes bacterial flagellin, a major structural protein of bacterial flagella, and initiates immune responses against flagellated pathogens like *Salmonella* and *Escherichia coli*. Upon ligand binding, TLR5 activates downstream signaling pathways (e.g., NF-κB and MAPK), triggering the production of pro-inflammatory cytokines and chemokines to combat infections.
Recombinant TLR5 proteins are engineered versions of the native receptor, typically produced using heterologous expression systems such as *E. coli*, insect cells, or mammalian cell lines (e.g., HEK293). These proteins retain the ligand-binding extracellular leucine-rich repeat (LRR) domain, which is critical for flagellin interaction, while the transmembrane and cytoplasmic Toll/interleukin-1 receptor (TIR) domains may be modified or truncated for solubility and purification purposes. Recombinant TLR5 is often fused with tags (e.g., Fc, His, or GST) to facilitate detection, isolation, or functional studies.
TLR5 recombinant proteins are widely utilized in biomedical research to study innate immunity mechanisms, screen for TLR5 agonists/antagonists, and develop therapeutics or vaccine adjuvants. For instance, they serve as tools to investigate TLR5-mediated signaling dysregulation in autoimmune diseases, chronic inflammation, or cancer. Additionally, recombinant TLR5 has been explored in preclinical models to enhance anti-tumor immunity or improve antibacterial responses. Recent studies also highlight its potential in designing flagellin-based vaccines, leveraging TLR5’s ability to bridge innate and adaptive immunity.
Despite advancements, challenges remain, including optimizing recombinant TLR5 stability and mimicking native post-translational modifications. Ongoing research aims to refine production techniques and expand therapeutic applications, underscoring TLR5’s significance in immunology and drug development.
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。
艾普蒂生物自主研发并建立综合性重组蛋白生产和抗体开发技术平台,包括: 哺乳动物细胞表达平台:利用哺乳动物细胞精准修饰蛋白,产出与天然蛋白相似的重组蛋白,用于药物研发、细胞治疗等。 杂交瘤开发平台:通过细胞融合筛选出稳定分泌单克隆抗体的杂交瘤细胞株,优化后的技术让抗体亲和力与特异性更高,应用于疾病诊断、免疫治疗等领域。 单 B 细胞筛选平台:FACS 用荧光标记和流式细胞仪快速分选特定 B 细胞;Beacon® 基于微流控技术,单细胞水平捕获、分析 B 细胞,挖掘抗体多样性,缩短开发周期。 凭借这些平台,艾普蒂生物为客户提供优质试剂和专业 CRO 技术服务,推动生物科技发展。
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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