PMID- 36191190 OWN - NLM STAT- MEDLINE DCOM- 20221005 LR - 20221027 IS - 1091-6490 (Electronic) IS - 0027-8424 (Print) IS - 0027-8424 (Linking) VI - 119 IP - 41 DP - 2022 Oct 11 TI - Elongation factor P modulates Acinetobacter baumannii physiology and virulence as a cyclic dimeric guanosine monophosphate effector. PG - e2209838119 LID - 10.1073/pnas.2209838119 [doi] LID - e2209838119 AB - Cyclic diguanosine monophosphate (c-di-GMP) is widely used by bacteria to control biological functions in response to diverse signals or cues. A previous study showed that potential c-di-GMP metabolic enzymes play a role in the regulation of biofilm formation and motility in Acinetobacter baumannii. However, it was unclear whether and how A. baumannii cells use c-di-GMP signaling to modulate biological functions. Here, we report that c-di-GMP is an important intracellular signal in the modulation of biofilm formation, motility, and virulence in A. baumannii. The intracellular level of c-di-GMP is principally controlled by the diguanylate cyclases (DGCs) A1S_1695, A1S_2506, and A1S_3296 and the phosphodiesterase (PDE) A1S_1254. Intriguingly, we revealed that A1S_2419 (an elongation factor P [EF-P]), is a novel c-di-GMP effector in A. baumannii. Response to a c-di-GMP signal boosted A1S_2419 activity to rescue ribosomes from stalling during synthesis of proteins containing consecutive prolines and thus regulate A. baumannii physiology and pathogenesis. Our study presents a unique and widely conserved effector that controls bacterial physiology and virulence by sensing the second messenger c-di-GMP. FAU - Guo, Quan AU - Guo Q AUID- ORCID: 0000-0002-0615-7311 AD - School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China. FAU - Cui, Binbin AU - Cui B AD - School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China. FAU - Wang, Mingfang AU - Wang M AD - School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China. FAU - Li, Xia AU - Li X AD - School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China. FAU - Tan, Huihui AU - Tan H AUID- ORCID: 0000-0001-8182-5706 AD - School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China. FAU - Song, Shihao AU - Song S AD - School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China. FAU - Zhou, Jianuan AU - Zhou J AD - Integrative Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China. FAU - Zhang, Lian-Hui AU - Zhang LH AD - Integrative Microbiology Research Center, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China. FAU - Deng, Yinyue AU - Deng Y AUID- ORCID: 0000-0003-1511-0870 AD - School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221003 PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (Bacterial Proteins) RN - 0 (Escherichia coli Proteins) RN - 0 (Peptide Elongation Factors) RN - 0 (factor EF-P) RN - 85-32-5 (Guanosine Monophosphate) RN - EC 3.1.4.- (Phosphoric Diester Hydrolases) RN - EC 4.6.- (Phosphorus-Oxygen Lyases) RN - H2D2X058MU (Cyclic GMP) SB - IM MH - *Acinetobacter baumannii/metabolism MH - Bacterial Proteins/genetics/metabolism MH - Biofilms MH - Cyclic GMP/metabolism MH - *Escherichia coli Proteins/metabolism MH - Gene Expression Regulation, Bacterial MH - Guanosine Monophosphate MH - Peptide Elongation Factors MH - Phosphoric Diester Hydrolases/metabolism MH - Phosphorus-Oxygen Lyases/genetics/metabolism MH - Virulence PMC - PMC9564936 OTO - NOTNLM OT - Acinetobacter baumannii OT - c-di-GMP OT - elongation factor P OT - pathogenicity OT - physiology COIS- The authors declare no competing interest. EDAT- 2022/10/04 06:00 MHDA- 2022/10/06 06:00 PMCR- 2022/10/03 CRDT- 2022/10/03 15:22 PHST- 2022/10/03 15:22 [entrez] PHST- 2022/10/04 06:00 [pubmed] PHST- 2022/10/06 06:00 [medline] PHST- 2022/10/03 00:00 [pmc-release] AID - 202209838 [pii] AID - 10.1073/pnas.2209838119 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 2022 Oct 11;119(41):e2209838119. doi: 10.1073/pnas.2209838119. Epub 2022 Oct 3.