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Regulation of bacterial stringent response by an evolutionarily conserved ribosomal protein L11 methylation

Journal Article · · mBio (Online)
 [1];  [2];  [2];  [3];  [2];  [2];  [3];  [3];  [4];  [3];  [1];  [2]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States)
  2. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  3. Loyola University Chicago, Maywood, IL (United States)
  4. Brigham Young Univ., Provo, UT (United States)
Lysine and arginine methylation is an important regulator of enzyme activity and transcription in eukaryotes. However, little is known about this covalent modification in bacteria. In this work, we investigated the role of methylation in bacteria. By reanalyzing a large phyloproteomics data set from 48 bacterial strains representing six phyla, we found that almost a quarter of the bacterial proteome is methylated. Many of these methylated proteins are conserved across diverse bacterial lineages, including those involved in central carbon metabolism and translation. Among the proteins with the most conserved methylation sites is ribosomal protein L11 (bL11). bL11 methylation has been a mystery for five decades, as the deletion of its methyltransferase PrmA causes no cell growth defects. Comparative proteomics analysis combined with inorganic polyphosphate and guanosine tetra/pentaphosphate assays of the ΔprmA mutant in Escherichia coli revealed that bL11 methylation is important for stringent response signaling. In the stationary phase, we found that the ΔprmA mutant has impaired guanosine tetra/pentaphosphate production. This leads to a reduction in inorganic polyphosphate levels, accumulation of RNA and ribosomal proteins, and an abnormal polysome profile. Overall, our investigation demonstrates that the evolutionarily conserved bL11 methylation is important for stringent response signaling and ribosomal activity regulation and turnover.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2527256
Report Number(s):
PNNL-SA--186921
Journal Information:
mBio (Online), Journal Name: mBio (Online) Journal Issue: 10 Vol. 15; ISSN 2150-7511
Publisher:
American Society for Microbiology (ASM)Copyright Statement
Country of Publication:
United States
Language:
English

References (45)

Live‐Cell Imaging of Guanosine Tetra‐ and Pentaphosphate (p)ppGpp with RNA‐based Fluorescent Sensors** journal October 2021
PRMT5 promotes ovarian cancer growth through enhancing Warburg effect by methylating ENO1 journal March 2023
The functional diversity of protein lysine methylation journal April 2014
The antibiotic thiostrepton inhibits a functional transition within protein L11 at the ribosomal GTPase centre journal February 1998
Localization of L11 protein on the ribosome and elucidation of its involvement in EF-G-dependent translocation journal August 2001
Data Conversion with ProteoWizard msConvert book January 2017
Limitation of Ribosomal Protein L11 Availability in vivo Affects Translation Termination journal May 2002
PRMT6 promotes tumorigenicity and cisplatin response of lung cancer through triggering 6PGD/ENO1 mediated cell metabolism journal January 2023
Ribosomal protein methyltransferases in the yeast Saccharomyces cerevisiae : Roles in ribosome biogenesis and translation journal February 2016
N6-Methylated Adenosine in RNA: From Bacteria to Humans journal May 2016
Emerging roles of RNA modifications in bacteria journal April 2016
Multiple-Site Trimethylation of Ribosomal Protein L11 by the PrmA Methyltransferase journal July 2008
Historical review: the field of protein methylation journal March 2007
Interaction of IF2 with the Ribosomal GTPase-Associated Center during 70S Initiation Complex Formation journal May 2009
ɛ-N-Methyl-lysine in Bacterial Flagellar Protein journal July 1959
MS-GF+ makes progress towards a universal database search tool for proteomics journal October 2014
Proteome-wide enrichment of proteins modified by lysine methylation journal December 2013
Post-translational modifications in signal integration journal May 2010
Streptomycin interferes with conformational coupling between codon recognition and GTPase activation on the ribosome journal March 2004
Protein post-translational modifications in bacteria journal September 2019
Reading, writing and erasing mRNA methylation journal September 2019
Histone lysine methyltransferases in biology and disease journal October 2019
Global lysine methylome profiling using systematically characterized affinity reagents journal January 2023
Guanosine Tetra- and Pentaphosphate Promote Accumulation of Inorganic Polyphosphate in Escherichia coli journal August 1997
Immunoaffinity Enrichment and Mass Spectrometry Analysis of Protein Methylation journal October 2013
The rapid generation of mutation data matrices from protein sequences journal January 1992
Predicting functionally important residues from sequence conservation journal May 2007
Correcting systematic bias and instrument measurement drift with mzRefinery: Fig. 1. journal August 2015
A flexible loop in yeast ribosomal protein L11 coordinates P-site tRNA binding journal August 2010
Dual Targeting of the Protein Methyltransferase PrmA Contributes to Both Chloroplastic and Mitochondrial Ribosomal Protein L11 Methylation in Arabidopsis journal June 2015
Chlamydial SET domain protein functions as a histone methyltransferase journal February 2007
Ribosomal protein methylation in Escherichia coli: the gene prmA, encoding the ribosomal protein L11 methyltransferase, is dispensable journal December 1994
The global, ppGpp-mediated stringent response to amino acid starvation in Escherichia coli journal June 2008
Role of Inorganic Polyphosphate in Promoting Ribosomal Protein Degradation by the Lon Protease in E. coli journal July 2001
Inorganic Polyphosphate Accumulation in Escherichia coli Is Regulated by DksA but Not by (p)ppGpp journal February 2019
Species-Specific Interactions of Arr with RplK Mediate Stringent Response in Bacteria journal March 2018
Inorganic Polyphosphate in Escherichia coli: the Phosphate Regulon and the Stringent Response journal April 1998
Involvement of the N Terminus of Ribosomal Protein L11 in Regulation of the RelA Protein of Escherichia coli journal November 2001
Thermus thermophilus L11 Methyltransferase, PrmA, Is Dispensable for Growth and Preferentially Modifies Free Ribosomal Protein L11 Prior to Ribosome Assembly journal September 2004
Methylation of Ribosomal Proteins in Escherichia coli journal November 1974
Ancient Regulatory Role of Lysine Acetylation in Central Metabolism journal November 2017
Regulation of Translation by Lysine Acetylation in Escherichia coli journal June 2022
Regulation of bacterial stringent response by an evolutionarily conserved ribosomal protein L11 methylation journal October 2024
Methylated nucleosides in tRNA and tRNA methyltransferases journal May 2014
Molecular Basis of Stationary Phase Survival and Applications journal October 2017