ArticlePloS one2015
Significance of four methionine sulfoxide reductases in Staphylococcus aureus.
Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 44 citations in OpenAlex.
- Role of ClpX and MsrA/B in the Oxidative and Cell Wall Stress Response in Bacillus anthracis Sterne.MicrobiologyOpen · 2026Article
- An integrated Msr-antioxidase-host gene circuit maintains redox homeostasis in legume-rhizobium symbiosis.Frontiers in plant science · 2026Article
- What Do We Know AboutToxics · 2025Review
- Loratadine Combats Methicillin-ResistantACS infectious diseases · 2024Article
- Comparative proteomic analysis of vancomycin-sensitive and vancomycin-intermediate resistant Staphylococcus aureus.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2024Article
- Antibiofilm and staphyloxanthin inhibitory potential of terbinafine against Staphylococcus aureus: in vitro and in vivo studies.Annals of clinical microbiology and antimicrobials · 2022Article
- Hypoxia Tolerance Declines with Age in the Absence of Methionine Sulfoxide Reductase (MSR) inAntioxidants (Basel, Switzerland) · 2021Article
- Staphylococcus aureus Peptide Methionine Sulfoxide Reductases Protect from Human Whole-Blood Killing.Infection and immunity · 2021Article
- Novel Soil-Derived Beta-Lactam, Chloramphenicol, Fosfomycin and Trimethoprim Resistance Genes Revealed by Functional Metagenomics.Antibiotics (Basel, Switzerland) · 2021Article
- Methionine Redox Homeostasis in Protein Quality Control.Frontiers in molecular biosciences · 2021Review
- Methionine Availability in the Arthropod Intestine Is Elucidated through Identification of Vibrio cholerae Methionine Acquisition Systems.Applied and environmental microbiology · 2020Article
- Modeling of Effective Antimicrobials to ReduceToxins · 2020Article
- Role of the LytSR Two-Component Regulatory System inFrontiers in microbiology · 2020Article
- Impact of Deficiencies in Branched-Chain Fatty Acids and Staphyloxanthin inBioMed research international · 2019Article
- Role of SigB and Staphyloxanthin in Radiation Survival of Staphylococcus aureus.Current microbiology · 2019Article
- TheFrontiers in immunology · 2019Article
- In Vivo Effects of Methionine Sulfoxide Reductase Deficiency inAntioxidants (Basel, Switzerland) · 2018Article
- The Role of Methionine Sulfoxide Reductases in Oxidative Stress Tolerance and Virulence ofAntioxidants (Basel, Switzerland) · 2018Review
- Genome Structure of the Opportunistic PathogenFrontiers in microbiology · 2018Article
- Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
Abstract
Staphylococcus aureus is a major human pathogen and emergence of antibiotic resistance in clinical staphylococcal isolates raises concerns about our ability to control these infections. Cell wall-active antibiotics cause elevated synthesis of methionine sulfoxide reductases (Msrs: MsrA1 and MsrB) in S. aureus. MsrA and MsrB enzymes reduce S-epimers and R-epimers of methionine sulfoxide, respectively, that are generated under oxidative stress. In the S. aureus chromosome, there are three msrA genes (msrA1, msrA2 and msrA3) and one msrB gene. To understand the precise physiological roles of Msr proteins in S. aureus, mutations in msrA1, msrA2 and msrA3 and msrB genes were created by site-directed mutagenesis. These mutants were combined to create a triple msrA (msrA1, msrA2 and msrA3) and a quadruple msrAB (msrA1, msrA2, msrA3, msrB) mutant. These mutants were used to determine the roles of Msr proteins in staphylococcal growth, antibiotic resistance, adherence to human lung epithelial cells, pigment production, and survival in mice relative to the wild-type strains. MsrA1-deficient strains were sensitive to oxidative stress conditions, less pigmented and less adherent to human lung epithelial cells, and showed reduced survival in mouse tissues. In contrast, MsrB-deficient strains were resistant to oxidants and were highly pigmented. Lack of MsrA2 and MsrA3 caused no apparent growth defect in S. aureus. In complementation experiments with the triple and quadruple mutants, it was MsrA1 and not MsrB that was determined to be critical for adherence and phagocytic resistance of S. aureus. Overall, the data suggests that MsrA1 may be an important virulence factor and MsrB probably plays a balancing act to counter the effect of MsrA1 in S. aureus.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.