Yang, X.‐Z. et al. (2023) A‐to‐I RNA editing in Klebsiella pneumoniae regulates quorum sensing and affects cell growth and virulence. Advanced Science, 10(17), 2206056. (doi: 10.1002/advs.202206056) (PMID:37083223) (PMCID:PMC10265045)
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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.
| Item Type: | Articles |
|---|---|
| Additional Information: | The authors acknowledge the Beijing Natural Science Foundation (5232026), National Natural Science Foundation of China (32000463), (81801989), (82272380), the National Key Research and Development Program of China (2021YFC2301002), and National High Level Hospital Clinical Research Funding Grant (2022-PUMCH-B-028), (2022-PUMCH-C-060) for financial support. |
| Keywords: | Cell growth, badR, Klebsiella pneumoniae, RNA editing regulation, virulence. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Yin, Professor Huabing |
| Authors: | Yang, X.‐Z., Sun, T.‐S., Jia, P.‐Y., Li, S.‐J., Li, X.‐G., Shi, Y., Li, X., Gao, H., Yin, H., Jia, X.‐M., and Yang, Q. |
| College/School: | College of Science and Engineering > School of Engineering > Biomedical Engineering |
| Journal Name: | Advanced Science |
| Publisher: | Wiley |
| ISSN: | 2198-3844 |
| ISSN (Online): | 2198-3844 |
| Published Online: | 21 April 2023 |
| Copyright Holders: | Copyright © 2023 The Authors |
| First Published: | First published in Advanced Science 10(17):2206056 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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