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Incomplete LPS Core-Specific Felix01-Like Virus vB_EcoM_VpaE1
Eugenijus Šimoliūnas1, Monika Vilkaitytė2, Laura Kaliniene3
1Department of Molecular Microbiology and Biotechnology, Institute of Biochemistry, Vilnius University, Vilnius LT-08662, Lithuania. eugenijus.simoliunas@bchi.vu.lt.
Viruses
|December 4, 2015
Summary
A novel coliphage, vB_EcoM_VpaE1, infects rough Escherichia coli strains lacking O-antigen. This discovery offers potential for controlling resistant bacterial strains and advancing phage-based diagnostics and therapeutics.
Area of Science:
- Microbiology
- Virology
- Bacteriophage Research
Background:
- Bacteriophages are crucial for understanding virus-host interactions.
- Phage host-specificity is key for applications in diagnostics, therapeutics, and molecular biology.
Purpose of the Study:
- To isolate and characterize a novel coliphage, vB_EcoM_VpaE1, with unique host specificity.
- To investigate the potential of vB_EcoM_VpaE1 for controlling resistant bacterial strains.
Main Methods:
- Morphological, genomic, and proteomic analyses were performed.
- Infection assays were conducted on various Escherichia coli strains, including those with truncated lipopolysaccharide (LPS).
- Replication temperature range was determined.
Main Results:
- vB_EcoM_VpaE1 belongs to the Felix01likevirus genus (Myoviridae family).
- Unlike related phages, vB_EcoM_VpaE1 infects O-antigen-deficient E. coli strains with incomplete LPS, including those with inner-core oligosaccharide.
- The phage replicates effectively across a wide temperature range (9–49 °C).
Conclusions:
- vB_EcoM_VpaE1 demonstrates potential for controlling rough E. coli strains.
- Its robust receptor-recognizing proteins are valuable for glycan analysis, bacterial diagnostics, and antimicrobial therapeutics.
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