Molecular chaperones and selection against mutations
2008

Molecular Chaperones and Their Role in Mutation Selection

publication Evidence: moderate

Author Information

Author(s): Tomala Katarzyna, Korona Ryszard

Primary Institution: Institute of Environmental Sciences, Jagiellonian University

Hypothesis

How do molecular chaperones affect the selection against mutations in proteins?

Conclusion

Molecular chaperones may sometimes help mutated proteins but can also lead to their degradation, complicating their role in evolution.

Supporting Evidence

  • Chaperones can alleviate the effects of mutations in bacteria.
  • In eukaryotes, malfunctioning chaperones can worsen the effects of mutations.
  • Some chaperones may direct unstable proteins towards degradation instead of assisting their folding.

Takeaway

Molecular chaperones are like helpers for proteins, but sometimes they can also decide to throw away the ones that are broken.

Methodology

The review discusses various studies on the interactions of chaperones with mutated proteins in both bacteria and eukaryotes.

Potential Biases

Potential bias in interpreting the role of chaperones due to the complexity of their functions.

Limitations

The evidence for chaperones buffering mutations is limited and often context-dependent.

Digital Object Identifier (DOI)

10.1186/1745-6150-3-5

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