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A‐to‐I RNA Editing in Klebsiella pneumoniae Regulates Quorum Sensing and Affects Cell Growth and Virulence.

A‐to‐I RNA Editing in Klebsiella pneumoniae Regulates Quorum Sensing and Affects Cell Growth and Virulence.

Authors :
Yang, Xin‐Zhuang
Sun, Tian‐Shu
Jia, Pei‐Yao
Li, Sheng‐Jie
Li, Xiao‐Gang
Shi, Yanan
Li, Xue
Gao, Haotian
Yin, Huabing
Jia, Xin‐Miao
Yang, Qiwen
Source :
Advanced Science; 6/13/2023, Vol. 10 Issue 17, p1-10, 10p
Publication Year :
2023

Abstract

Millions of adenosine (A) to inosine (I) RNA editing events are reported and well‐studied in eukaryotes; however, many features and functions remain unclear in prokaryotes. By combining PacBio Sequel, Illumina whole‐genome sequencing, and RNA Sequencing data of two Klebsiella pneumoniae strains with different virulence, a total of 13 RNA editing events are identified. The RNA editing event of badR is focused, which shows a significant difference in editing levels in the two K. pneumoniae strains and is predicted to be a transcription factor. A hard‐coded Cys is mutated on DNA to simulate the effect of complete editing of badR. Transcriptome analysis identifies the cellular quorum sensing (QS) pathway as the most dramatic change, demonstrating the dynamic regulation of RNA editing on badR related to coordinated collective behavior. Indeed, a significant difference in autoinducer 2 activity and cell growth is detected when the cells reach the stationary phase. Additionally, the mutant strain shows significantly lower virulence than the WT strain in the Galleria mellonella infection model. Furthermore, RNA editing regulation of badR is highly conserved across K. pneumoniae strains. Overall, this work provides new insights into posttranscriptional regulation in bacteria. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21983844
Volume :
10
Issue :
17
Database :
Complementary Index
Journal :
Advanced Science
Publication Type :
Academic Journal
Accession number :
164306695
Full Text :
https://doi.org/10.1002/advs.202206056