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Author Spotlight: Advancing Antibiotic Resistance Research Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System
Published on: January 5, 2024
Major facilitator superfamily efflux pumps in human pathogens: Role in multidrug resistance and beyond
Manjusha Lekshmi1, Anely Ortiz-Alegria2, Sanath Kumar1
1QC Laboratory, Post Harvest Technology, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai 400061, India.
Abstract:
The major facilitator superfamily (MFS) of proteins constitutes a large group of related solute transporters found across all known living taxa of organisms. The transporters of the MFS contain an extremely diverse array of substrates, including ions, molecules of intermediary metabolism, and structurally different antimicrobial agents. First discovered over 30 years ago, the MFS represents an important collection of integral membrane transporters. Bacterial microorganisms expressing multidrug efflux pumps belonging to the MFS are considered serious pathogens, accounting for alarming morbidity and mortality numbers annually. This review article considers recent advances in the structure-function relationships, the transport mechanism, and modulation of MFS multidrug efflux pumps within the context of drug resistance mechanisms of bacterial pathogens of public health concerns.
Insights
The major facilitator superfamily (MFS) transports diverse molecules across cell membranes. MFS multidrug efflux pumps in bacteria contribute to drug resistance and pose significant public health threats.
Area of Science:
- Biochemistry
- Molecular Biology
- Microbiology
Background:
- The Major Facilitator Superfamily (MFS) comprises a vast group of integral membrane solute transporters present in all life forms.
- MFS transporters exhibit broad substrate specificity, including ions, metabolites, and antimicrobial agents.
- MFS-based multidrug efflux pumps in bacteria are critical virulence factors and contribute to antimicrobial resistance.
Purpose of the Study:
- To review recent advancements in understanding the structure-function relationships of MFS multidrug efflux pumps.
- To explore the transport mechanisms employed by MFS multidrug efflux pumps.
- To discuss the modulation of MFS multidrug efflux pumps in the context of bacterial drug resistance.
Main Methods:
- Literature review of recent research on MFS proteins.
- Analysis of structure-function data for MFS transporters.
- Examination of studies on MFS pump transport mechanisms and modulation.
Main Results:
- MFS proteins are crucial for cellular transport across diverse organisms.
- MFS multidrug efflux pumps play a significant role in bacterial pathogenesis and drug resistance.
- Recent studies have elucidated key aspects of MFS pump structure, function, and regulation.
Conclusions:
- MFS multidrug efflux pumps are important targets for combating bacterial infections.
- Understanding MFS pump mechanisms is vital for developing strategies to overcome antimicrobial resistance.
- Continued research into MFS proteins is essential for addressing public health challenges posed by drug-resistant pathogens.
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