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Updated: Jul 3, 2026
14:04
Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
Published on: May 8, 2013
Factors affecting methicillin resistance in Staphylococcus aureus.
1Institute of Medical Microbiology, University of Zürich, Gloriastr. 32, Postfach CH 8028 Zürich, Switzerland.
International Journal of Antimicrobial Agents
|September 1, 1995
Summary
Methicillin resistance in staphylococci is mainly caused by PBP2
Area of Science:
- Microbiology
- Molecular Biology
- Genetics
Background:
- Methicillin resistance in staphylococci is a significant clinical concern.
- The primary mechanism involves the production of an alternative penicillin-binding protein, PBP2', with low affinity for beta-lactam antibiotics.
Purpose of the Study:
- To investigate the factors influencing methicillin resistance levels in staphylococci.
- To understand the relationship between PBP2' expression and observed resistance phenotypes.
Main Methods:
- Analysis of PBP2' expression regulation.
- Investigation of strain-specific genetic elements potentially modulating resistance.
Main Results:
- PBP2' expression is regulated by its own element and shares induction systems with beta-lactamases.
- Methicillin resistance levels do not directly correlate with PBP2' production quantity.
Conclusions:
- The genetic background of the staphylococcal strain plays a crucial role in determining high-level methicillin resistance.
- Key genetic factors contributing to high-level methicillin resistance remain uncharacterized.
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