article Open Access (hybrid) EN 2023-08-22

An antibiotic from an uncultured bacterium binds to an immutable target

Abstract

Antimicrobial resistance is a leading mortality factor worldwide. Here, we report the discovery of clovibactin, an antibiotic isolated from uncultured soil bacteria. Clovibactin efficiently kills drug-resistant Gram-positive bacterial pathogens without detectable resistance. Using biochemical assays, solid-state nuclear magnetic resonance, and atomic force microscopy, we dissect its mode of action. Clovibactin blocks cell wall synthesis by targeting pyrophosphate of multiple essential peptidoglycan precursors (C 55 PP, lipid II, and lipid III WTA ). Clovibactin uses an unusual hydrophobic interface to tightly wrap around pyrophosphate but bypasses the variable structural elements of precursors, accounting for the lack of resistance. Selective and efficient target binding is achieved by the sequestration of precursors into supramolecular fibrils that only form on bacterial membranes that contain lipid-anchored pyrophosphate groups. This potent antibiotic holds the promise of enabling the design of improved therapeutics that kill bacterial pathogens without resistance development.

Topics

Genomics and Phylogenetic Studies 1.00 Bacteriophages and microbial interactions 1.00 Bacterial Genetics and Biotechnology 0.99

Field: Biochemistry, Genetics and Molecular Biology · Subfield: Molecular Biology

Keywords

Lipid II,Biology,Bacterial cell structure,Peptidoglycan,Pyrophosphate,Bacteria,Antibiotics,Antibiotic resistance,Antimicrobial,Microbiology

MeSH Terms

Anti-Bacterial AgentsAnti-Bacterial AgentsAnti-Bacterial AgentsAnti-Bacterial AgentsAnti-Bacterial AgentsAnti-Bacterial AgentsAnti-Bacterial AgentsAnti-Bacterial Agents

UN Sustainable Development Goals

  • Good health and well-being (0.83)

All Available Versions

  • PDF Landing page — Cell publishedVersion cc-by
  • Landing page — PubMed publishedVersion
  • Landing page — University of Groningen research database (University of Groningen / Centre for Information Technology) publishedVersion cc-by
  • Landing page — Utrecht University Repository (Utrecht University) submittedVersion other-oa
  • Landing page — Florence Research (University of Florence) submittedVersion other-oa

Citations by Year

2026202520242023
2959478
12.87
FWCI
99%
Normalized Pctile
75
References
30
Authors

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