Periplasmic chaperone FkpA is essential for imported colicin M toxicity
2008
FkpA Chaperone is Essential for Colicin M Toxicity
publication
Evidence: high
Author Information
Author(s): Hullmann Julia, Patzer Silke I, Römer Christin, Hantke Klaus, Braun Volkmar
Primary Institution: University of Tübingen
Hypothesis
The periplasmic chaperone FkpA is required for the activity of imported colicin M.
Conclusion
FkpA is essential for the activity of imported colicin M, as mutants lacking FkpA are resistant to colicin M.
Supporting Evidence
- FkpA mutants were found to be insensitive to colicin M.
- Complementation with wild-type fkpA restored sensitivity to colicin M.
- FkpA was shown to assist in the refolding of denatured colicin M.
Takeaway
FkpA helps colicin M, a protein that can kill bacteria, to work properly after it enters the bacteria.
Methodology
The study involved isolating and characterizing E. coli mutants to assess their sensitivity to colicin M and the role of FkpA in this process.
Limitations
The study primarily focuses on colicin M and may not generalize to other colicins or chaperones.
Digital Object Identifier (DOI)
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