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Bacterial pathogens depend on precise and efficient DNA replication to sustain infection. Two type II topoisomerases—DNA gyrase and topoisomerase IV—are critical to this process, as they resolve DNA supercoiling and unlink chromosomes during replication. Fluoroquinolones, synthetic derivatives of quinolones, exploit this mechanism by stabilizing the transient DNA–enzyme cleavage complex, preventing strand religation, and causing lethal double-strand breaks. These...
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Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
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Aminoglycosides constitute a highly potent class of bactericidal antibiotics that exert their antimicrobial effects by targeting the bacterial ribosome, specifically disrupting protein synthesis. These polycationic molecules consist of amino-modified sugars linked via glycosidic bonds to an aminocyclitol core such as 2-deoxystreptamine or streptamine. Their strong positive charges facilitate tight binding to the negatively charged phosphate backbone of ribosomal RNA (rRNA), primarily at the 16S...
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Nanomechanics of Drug-target Interactions and Antibacterial Resistance Detection
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DNA as a target for antimicrobials.

Albert Bolhuis1, Janice R Aldrich-Wright2

  • 1University of Bath, Department of Pharmacy and Pharmacology, UK.

Bioorganic Chemistry
|April 22, 2014
PubMed
Summary
This summary is machine-generated.

Antimicrobial resistance is a major healthcare threat. This review explores novel DNA-binding compounds as potential antimicrobial agents, addressing challenges and opportunities in combating infections.

Keywords:
AntibioticAntimicrobialDNAIntercalationMajor grooveMinor groove

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Area of Science:

  • Microbiology
  • Medicinal Chemistry
  • Genetics

Background:

  • Antimicrobial resistance (AMR) poses a significant global health risk.
  • The pipeline for novel antimicrobial drugs is critically low, risking a post-antibiotic era.
  • Developing antimicrobials targeting novel pathways is essential to overcome existing resistance.

Purpose of the Study:

  • To review existing DNA-binding compounds with antimicrobial potential.
  • To explore DNA as an underexplored target for novel antimicrobial drug discovery.
  • To discuss the opportunities and challenges associated with developing DNA-targeting antimicrobials.

Main Methods:

  • Literature review of DNA-binding compounds.
  • Analysis of the potential of DNA as a therapeutic target.
  • Discussion of resistance mechanisms and development strategies.

Main Results:

  • Several classes of DNA-binding compounds exhibit antimicrobial activity.
  • DNA offers a promising, yet underexplored, target for novel antimicrobial development.
  • Challenges include compound delivery, specificity, and potential for resistance.

Conclusions:

  • Novel antimicrobial discovery is crucial to combat the threat of resistance.
  • DNA-targeting agents represent a viable strategy for new antimicrobial development.
  • Further research is needed to optimize DNA-binding compounds for clinical application.