Inhibition of Bacterial Conjugation by Phage M13 and Its Protein g3p
Author Information
Author(s): Lin Abraham, Jimenez Jose, Derr Julien, Vera Pedro, Manapat Michael L., Esvelt Kevin M., Villanueva Laura, Liu David R., Chen Irene A.
Primary Institution: Harvard University
Hypothesis
Can phage M13 and its protein g3p inhibit bacterial conjugation?
Conclusion
Phage M13 and its protein g3p can effectively inhibit bacterial conjugation, potentially slowing the spread of antibiotic resistance.
Supporting Evidence
- Phage M13 was shown to inhibit conjugation by occluding the conjugative pilus.
- Exogenous addition of g3p-N inhibited conjugation at low nanomolar concentrations.
- Infected cells exhibited reduced donor ability due to decreased piliation.
Takeaway
This study shows that a virus called phage M13 can stop bacteria from sharing their antibiotic resistance genes, which is important for fighting infections.
Methodology
The study involved mixing F+ and F− bacterial cells and measuring the rate of conjugation in the presence of phage M13 and its protein g3p.
Limitations
The study primarily focuses on a specific model of conjugation and may not account for all environmental factors affecting conjugation in natural settings.
Digital Object Identifier (DOI)
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