[ABC transporter proteins in multidrug resistance of microorganisms]
1Univerzita Komenského v Bratislave, Prírodovedecká fakulta, Katedra mikrobiológie a virologie, Bratislava.
Abstract:
The ABC (ATP binding cassette) transporter family includes membrane proteins that can transport a wide variety of substrates across biological membranes. These proteins play an essential role in the protection of cells from toxic compounds/metabolites. Their overexpression which leads to the development of multidrug resistance (MDR) in pathogens and enables cancer cells to survive chemotherapy is of major concern for human health. Mutations in ABC transporters are implicated in a number of Mendelian disorders such as cystic fibrosis, adrenoleukodystrophy and cholesterol and bile transport defects. In microbial cells, several homologues of human ABC transporters were identified. Their further molecular biological study can contribute to better understanding and treatment of MDR or diseases caused by dysfunction of ABC transporter proteins. A review is presented of the state of the art in ABC transporter proteins in both prokaryotic and eucaryotic cells. The role of microbial ABC transporters in the development of drug resistance is analyzed.
Insights
ATP binding cassette (ABC) transporters are crucial membrane proteins. Understanding microbial ABC transporters aids in combating multidrug resistance and related diseases.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- ATP binding cassette (ABC) transporters are vital membrane proteins involved in substrate transport across cell membranes.
- These transporters protect cells from toxic compounds but their overexpression causes multidrug resistance (MDR) in pathogens and cancer cells.
- Dysfunctional ABC transporters are linked to Mendelian disorders like cystic fibrosis and cholesterol transport defects.
Purpose of the Study:
- To review the current understanding of ABC transporter proteins in prokaryotic and eukaryotic cells.
- To analyze the role of microbial ABC transporters in the development of drug resistance.
- To highlight the significance of studying microbial ABC transporters for human health.
Main Methods:
- Literature review of existing research on ABC transporters.
- Analysis of the role of microbial ABC transporters in drug resistance mechanisms.
- Synthesis of information on ABC transporter functions in prokaryotic and eukaryotic systems.
Main Results:
- Identified numerous human ABC transporter homologues in microbial cells.
- Detailed the essential role of ABC transporters in cellular protection and disease pathogenesis.
- Provided an overview of the state-of-the-art in ABC transporter research across different organisms.
Conclusions:
- Microbial ABC transporters are critical targets for understanding and potentially treating multidrug resistance.
- Further research into microbial ABC transporters can offer insights into human diseases and therapeutic strategies.
- ABC transporters represent a significant area of study with broad implications for medicine and biology.
Related Concept Videos
ABC Transporters: Exporter
ABC Transporters: Importer
In bacteria, based on the number of transmembrane helices and the chemical nature of their substrates, the ABC importers can be divided into three types:
Carrier-Mediated Transport
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
Membrane Transporters
Transporters are mainly composed of alpha-helices, built from bundles of ten or more helices traversing the plasma membrane. The solute-binding sites are located midway, where some of the helices are broken or distorted, making space for the binding site through...
Pharmacogenetics of Drug Transporters: P-Glycoprotein and Solute Carrier Transporters
Hepatic Drug Clearance: Role of Transporters


