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T4 Bacteriophage and E. coli Interaction in the Murine Intestine: A Prototypical Model for Studying Host-Bacteriophage Dynamics In Vivo
08:46

T4 Bacteriophage and E. coli Interaction in the Murine Intestine: A Prototypical Model for Studying Host-Bacteriophage Dynamics In Vivo

Published on: January 26, 2024

S-layer-phage interaction in Clostridioides difficile

Robert P Fagan1, Jason S Wilson2, Per A Bullough1

  • 1Molecular Microbiology, School of Biosciences, University of Sheffield, Firth Court, Western Bank, Sheffield, S10 2TN, United Kingdom; Florey Institute of Infection, School of Biosciences, University of Sheffield, Firth Court, Western Bank, Sheffield S10 2TN, United Kingdom.

Current Opinion in Microbiology
|July 23, 2026
PubMed

Insights

Bacteriophage infection requires genome injection, a process hindered by bacterial S-layers. This review explores phage-S-layer interactions, crucial for understanding infection mechanisms in S-layer producing bacteria like Clostridioides difficile.

Area of Science:

  • Microbiology and Virology
  • Structural Biology
  • Bacterial Pathogenesis

Background:

  • Bacteriophage infection necessitates injecting the phage genome into the host bacterium's cytoplasm.
  • Phages must penetrate host cell envelopes, including cell walls and membranes.
  • S-layer producing bacteria present unique challenges for phage infection due to their outermost proteinaceous layer.

Purpose of the Study:

  • To review current knowledge on bacteriophage-S-layer interactions.
  • To highlight the limited understanding of early phage infection stages in S-layer bacteria.
  • To use Clostridioides difficile as a model for studying these interactions.

Main Methods:

  • Review of existing literature on phage-S-layer interactions.
  • Analysis of structural biology data, particularly cryo-electron microscopy (cryo-EM) findings.
  • Focus on the molecular mechanisms of phage entry into S-layer producing hosts.

Main Results:

  • Significant advances in understanding individual structures of S-layers and phages via cryo-EM.
  • A persistent gap in molecular-level understanding of the combined phage-S-layer system during infection.
  • Clostridioides difficile identified as a relevant model organism for this research area.

Conclusions:

  • Understanding phage-S-layer interactions is critical for deciphering phage infection pathways.
  • Further research integrating phage and S-layer structural data is needed.
  • Investigating these interactions in hosts like Clostridioides difficile can elucidate fundamental biological processes.

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