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Tetracycline-Inactivating Enzymes
Jana L Markley1, Timothy A Wencewicz1
1Department of Chemistry, Washington University in St. Louis, St. Louis, MO, United States.
Abstract:
Tetracyclines have been foundational antibacterial agents for more than 70 years. Renewed interest in tetracycline antibiotics is being driven by advancements in tetracycline synthesis and strategic scaffold modifications designed to overcome established clinical resistance mechanisms including efflux and ribosome protection. Emerging new resistance mechanisms, including enzymatic antibiotic inactivation, threaten recent progress on bringing these next-generation tetracyclines to the clinic. Here we review the current state of knowledge on the structure, mechanism, and inhibition of tetracycline-inactivating enzymes.
Insights
New tetracycline antibiotics face threats from emerging enzymatic inactivation resistance. This review covers the structure, mechanism, and inhibition of these enzymes, crucial for next-generation antibiotic development.
Area of Science:
- Antibiotic resistance
- Medicinal chemistry
- Enzymology
Background:
- Tetracyclines are established antibacterial agents with a long history.
- Advancements in synthesis and scaffold modification aim to overcome existing resistance.
- Emerging resistance mechanisms, like enzymatic inactivation, pose a significant threat to new tetracyclines.
Purpose of the Study:
- To review the current understanding of tetracycline-inactivating enzymes.
- To discuss the structure and mechanism of these enzymes.
- To explore strategies for inhibiting tetracycline-inactivating enzymes.
Main Methods:
- Literature review of scientific publications.
- Analysis of enzyme structures and mechanisms.
- Synthesis of information on inhibition strategies.
Main Results:
- Tetracycline-inactivating enzymes represent a growing challenge to next-generation tetracyclines.
- Understanding enzyme structure and mechanism is key to developing inhibitors.
- Several strategies for enzyme inhibition are being explored.
Conclusions:
- Inhibition of tetracycline-inactivating enzymes is critical for the clinical success of new tetracycline antibiotics.
- Further research into enzyme mechanisms and inhibitor development is necessary.
- Combating enzymatic inactivation is essential for preserving the utility of tetracyclines.
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