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沙门氏菌Typhimurium的DUF1127含小蛋白YjiS的功能性表征

Elisa Venturini¹, Sandra Maaß², Thorsten Bischler³

¹Institute of Molecular Infection Biology (IMIB), University of Würzburg, D-97080 Würzburg, Germany.

|January 10, 2025

概括

沙门氏菌是一种沙门氏菌.

科学领域:

微生物学微生物学
细菌病原体的产生
分子生物学分子生物学

背景情况:

小细菌蛋白质至关重要,但很难研究.
一种小蛋白质YjiS在沙门氏菌细胞内感染期间被诱导.
了解YjiS的功能是沙门氏菌致病性的关键.

研究的目的:

描述沙门氏菌YjiS在宿主病原体相互作用中的作用.
为了研究YjiS在巨感染期间的分子机制.
为了识别YjiS的交互伙伴及其细胞本地化.

主要方法:

使用YjiS突变体进行沙门氏菌感染测定.
宿主和病原体的双重RNA测序 (RNA-seq).
细菌细胞分离和共免疫沉.
对 DUF1127 域进行分析.

主要成果:

YjiS延迟了沙门氏菌从巨细胞中脱离.
YjiS影响宿主氧化应激和细胞皮层反应.
YjiS定位在内膜上,并与SsrA/B系统相互作用.
缺少YjiS会增加细菌的运动性和鞭毛体表达.

结论:

沙门氏菌YjiS作为一种与膜相关的调节剂.
YjiS可以作为一个计时器来控制病原体的传播.
YjiS将细胞内毒性与细菌运动性联系起来.

关键词:

DUF1127 德国法兰克福沙门氏菌 Typhimurium 是一个类型.美国SsrA/B 这就是YjiS.共同免疫沉的发生.双重RNA-seqq 的情况.旗小旗旗的意思主体病原体相互作用巨细胞是一个巨细胞.质谱测量质谱测量质谱测量质谱测量质量测量质谱测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量小蛋白质是一种小蛋白质.

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