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A high molecular weight lipopolysaccharide specific bacteriophage for Klebsiella pneumoniae

V J Benedí1, B Ciurana, J M Tomás

  • 1Departamento de Microbiología, Facultad de Biología, Universidad de Barcelona, Spain.

Canadian Journal of Microbiology
|July 1, 1988
PubMed

Insights

High-molecular weight lipopolysaccharide from Klebsiella pneumoniae is the receptor for bacteriophage FC3-1. This finding provides a new method for identifying phage receptors on bacteria.

Area of Science:

  • Microbiology
  • Virology
  • Bacteriology

Background:

  • Bacteriophages are viruses that infect bacteria.
  • Understanding bacteriophage-host interactions is crucial for phage therapy and microbial ecology.
  • Lipopolysaccharide (LPS) is a major component of the outer membrane of Gram-negative bacteria and often serves as a receptor for bacteriophages.

Purpose of the Study:

  • To identify the specific receptor on Klebsiella pneumoniae for bacteriophage FC3-1.
  • To develop a generalizable methodology for identifying bacteriophage receptors on host bacteria.

Main Methods:

  • Isolation and purification of high-molecular weight lipopolysaccharide (O antigen enriched fraction) from Klebsiella pneumoniae.
  • Characterization of the lipopolysaccharide component involved in bacteriophage FC3-1 binding and infection.

Main Results:

  • High-molecular weight lipopolysaccharide (O antigen enriched fraction) from Klebsiella pneumoniae was identified as the specific receptor for bacteriophage FC3-1.
  • The developed methodology proved effective for identifying the LPS component mediating phage reception.

Conclusions:

  • The O antigen of Klebsiella pneumoniae lipopolysaccharide is essential for bacteriophage FC3-1 recognition and infection.
  • The methodology employed is adaptable for discovering receptors for other bacteriophage-host systems.

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