MSK
Search
- Page Path
- HOME > Search
Journal Article
- Function of Rhs proteins in porcine extraintestinal pathogenic Escherichia coli PCN033
- Wenjia Lu , Jia Tan , Hao Lu , Gaoyan Wang , Wenqi Dong , Chenchen Wang , Xiaodan Li , Chen Tan
- J. Microbiol. 2021;59(9):854-860. Published online August 12, 2021
- DOI: https://doi.org/10.1007/s12275-021-1189-2
- 52 View
- 0 Download
- 4 Web of Science
- 4 Crossref
-
Abstract
- Extraintestinal pathogenic Escherichia coli (ExPEC) is an important zoonotic pathogen that places severe burdens on public health and animal husbandry. There are many pathogenic factors in E. coli. The type VI secretion system (T6SS) is a nano-microbial weapon that can assemble quickly and inject toxic effectors into recipient cells when danger is encountered. T6SSs are encoded in the genomes of approximately 25% of sequenced Gram-negative bacteria. When these bacteria come into contact with eukaryotic cells or prokaryotic microbes, the T6SS assembles and secretes associated effectors. In the porcine ExPEC strain PCN033, we identified four classic rearrangement hotspot (Rhs) genes. We determined the functions of the four Rhs proteins through mutant construction and protein expression. Animal infection experiments showed that the Δrhs-1CT, Δrhs-2CT, Δrhs-3CT, and Δrhs-4CT caused a significant decrease in the multiplication ability of PCN033 in vivo. Cell infection experiments showed that the Rhs protein is involved in anti-phagocytosis activities and bacterial adhesion and invasion abilities. The results of this study demonstrated that rhs1, rhs3, and rh4 plays an important role in the interaction between PCN033 and host cell. Rhs2 has contribution to cell and mice infection. This study helps to elucidate the pathogenic mechanism governing PCN033 and may help to establish a foundation for further research seeking to identify potential T6SS effectors.
-
Citations
Citations to this article as recorded by
- Molecular characterization of the integrative and conjugative elements harbouring multidrug resistance genes in Glaesserella parasuis
Yongliang Che, Renjie Wu, Hongjie Li, Longbai Wang, Xuemin Wu, Qiuyong Chen, Rujing Chen, Lunjiang Zhou
Veterinary Microbiology.2024; 291: 110014. CrossRef -
Genome-wide identification of genes critical for
in vivo
fitness of multi-drug resistant porcine extraintestinal pathogenic
Escherichia coli
by transposon-directed insertion site sequencing usin
Fan Yin, Yan Hu, Zixuan Bu, Yuying Liu, Hui Zhang, Yawen Hu, Ying Xue, Shaowen Li, Chen Tan, Xiabing Chen, Lu Li, Rui Zhou, Qi Huang
Virulence.2023;[Epub] CrossRef - Dual RNA-Seq of Flavobacterium psychrophilum and Its Outer Membrane Vesicles Distinguishes Genes Associated with Susceptibility to Bacterial Cold-Water Disease in Rainbow Trout (Oncorhynchus mykiss)
Pratima Chapagain, Ali Ali, Mohamed Salem
Pathogens.2023; 12(3): 436. CrossRef - Distribution and diversity of type VI secretion system clusters in Enterobacter bugandensis and Enterobacter cloacae
Amy J. G. Anderson, Becca Morrell, Guillermo Lopez Campos, Miguel A. Valvano
Microbial Genomics .2023;[Epub] CrossRef
- Molecular characterization of the integrative and conjugative elements harbouring multidrug resistance genes in Glaesserella parasuis
First
Prev
TOP
