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Tetratricopeptide Repeat Motifs in the World of Bacterial Pathogens: Role in Virulence Mechanisms

机译:细菌病原体世界中的四肽重复基序:在毒力机制中的作用。

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The tetratricopeptide repeat (TPR) structural motif is known to occur in a wide variety of proteins present in prokaryotic and eukaryotic organisms. The TPR motif represents an elegant module for the assembly of various multiprotein complexes, and thus, TPR-containing proteins often play roles in vital cell processes. As the TPR profile is well defined, the complete TPR protein repertoire of a bacterium with a known genomic sequence can be predicted. This provides a tremendous opportunity for investigators to identify new TPR-containing proteins and study them in detail. In the past decade, TPR-containing proteins of bacterial pathogens have been reported to be directly related to virulence-associated functions. In this minireview, we summarize the current knowledge of the TPR-containing proteins involved in virulence mechanisms of bacterial pathogens while highlighting the importance of TPR motifs for the proper functioning of class II chaperones of a type III secretion system in the pathogenesis of Yersinia, Pseudomonas, and Shigella.
机译:已知四三肽重复(TPR)结构基序出现在原核生物和真核生物中存在的多种蛋白质中。 TPR基序代表各种多蛋白复合物装配的优雅模块,因此,含TPR的蛋白质通常在重要的细胞过程中发挥作用。由于TPR谱图定义明确,因此可以预测具有已知基因组序列的细菌的完整TPR蛋白库。这为研究人员提供了巨大的机会来鉴定新的含TPR的蛋白质并对其进行详细研究。在过去的十年中,据报道细菌病原体中含有TPR的蛋白质与毒力相关的功能直接相关。在此小型审查中,我们总结了细菌病原体毒力机制中涉及的含TPR的蛋白质的当前知识,同时强调了TPR图案对于III型分泌系统II类分子伴侣在耶尔森氏菌,假单胞菌发病中的正常运行的重要性。和志贺氏菌。

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