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Genetic insights into Staphylococcus aureus resistance: exploring AMR genes and molecular interactions
Prasanna Kumar Selvam1,2, Santhosh Mudipalli Elavarasu3, George Priya Doss C3
1Manipal Academy of Higher Education (MAHE), Manipal, India.
Abstract:
Antimicrobial resistance (AMR) among microorganisms remains a significant global concern in this century, posing an ongoing challenge for humanity. To solve this issue effectively, it is crucial to understand the genes responsible for AMR and how they create resistance. Staphylococcus aureus, which has AMR genes imparting resistance against numerous antibiotics, was the main subject of our investigation. We conducted a phylogenetic investigation to explore the evolutionary history of the gene network comprising rpl, rpoC, parE, and gyrB, providing insights into their genetic relationships and evolutionary connections. A gene interaction network with 46 functional partners was built and examined from the STRING Database and Cytoscape to increase our understanding. According to Cluego's enrichment analysis, 20 genes are significantly involved in biological processes, as are 14 genes in cellular components and 16 genes in molecular functions. RpoB, RpoC, FusA, RplI, and RpsL had the most interactions by Cytohubba when the degree and closeness of the network were studied, according to the gene interaction network analysis. Understanding the molecular basis of AMR requires analysis of the enriched pathways and Gene Ontologies (GO). The proposed study may also help researchers find new ways to battle the multidrug resistance of Staphylococcus aureus.
Insights
Antimicrobial resistance (AMR) in Staphylococcus aureus is a global challenge. This study analyzed key genes and their interactions, revealing crucial pathways for developing new strategies against multidrug resistance.
Area of Science:
- Microbiology
- Genetics
- Bioinformatics
Background:
- Antimicrobial resistance (AMR) is a critical global health threat.
- Understanding the genetic basis of AMR in pathogens like Staphylococcus aureus is essential for developing effective treatments.
Purpose of the Study:
- To investigate the evolutionary history and genetic relationships of key AMR-associated genes in Staphylococcus aureus.
- To construct and analyze a gene interaction network to identify central players in AMR.
Main Methods:
- Phylogenetic analysis of the rpl, rpoC, parE, and gyrB gene network.
- Gene interaction network construction using STRING Database and Cytoscape.
- Enrichment analysis (Cluego) and network analysis (Cytohubba) to identify significant genes and pathways.
Main Results:
- A gene interaction network of 46 functional partners was established.
- Enrichment analysis identified significant genes involved in biological processes, cellular components, and molecular functions.
- RpoB, RpoC, FusA, RplI, and RpsL were identified as highly interactive genes within the network.
Conclusions:
- The study provides insights into the molecular basis of AMR in Staphylococcus aureus.
- Identifying key genes and pathways can aid in developing novel therapeutic strategies against multidrug-resistant strains.
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