Studies on Escherichia coli HflKC suggest the presence of an unidentified λ factor that influences the lysis-lysogeny switch
2011
Unidentified Factor Influences Lysis-Lysogeny Switch in E. coli
publication
Evidence: moderate
Author Information
Author(s): Bandyopadhyay Kaustav, Parua Pabitra K, Datta Ajit B, Parrack Pradeep
Primary Institution: Bose Institute
Hypothesis
Does lysogeny necessarily correlate with the stabilization of CII?
Conclusion
A yet unidentified CII-stabilizing factor in λ may influence the lysis-lysogeny decision in ΔhflKC cells.
Supporting Evidence
- CII is stabilized in ΔhflKC cells even without infection by λ.
- Turbid plaques were produced when a ΔhflKC host was infected by a cIII-defective phage.
- An increase in lysogeny occurs upon deletion or overexpression of HflKC.
Takeaway
When a virus infects bacteria, it can either destroy them or live inside them. This study found that a special factor helps the virus decide to live inside the bacteria, even when some parts are missing.
Methodology
The study involved experiments with plasmids, bacterial strains, and phages to analyze the stability of CII protein under various conditions.
Digital Object Identifier (DOI)
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