Related Experiment Video
Updated: May 25, 2026
13:52
Coupled Assays for Monitoring Protein Refolding in Saccharomyces cerevisiae
Published on: July 9, 2013
Aggregate reactivation mediated by the Hsp100 chaperones.
Michal Zolkiewski1, Ting Zhang, Maria Nagy
1Department of Biochemistry, Kansas State University, Manhattan, 66506, USA. michalz@ksu.edu
Archives of Biochemistry and Biophysics
|February 7, 2012
Summary
The Hsp100 family of molecular chaperones, including bacterial ClpB and yeast Hsp104, can reactivate aggregated proteins. This review details their AAA+ ATPase mechanism and co-chaperone roles in protein disaggregation.
Area of Science:
- Molecular Biology
- Biochemistry
- Protein Folding
Background:
- Protein aggregation is implicated in various diseases.
- Molecular chaperones assist in protein folding and preventing aggregation.
- The Hsp100 family possesses unique protein disaggregation capabilities.
Purpose of the Study:
- To review the mechanistic model of Hsp100-mediated protein disaggregation.
- To explain the structural basis of Hsp100's disaggregation function.
- To elucidate the role of co-chaperones in Hsp100 reactions.
Main Methods:
- Literature review of Hsp100 family chaperones.
- Analysis of structural and mechanistic data.
- Integration of findings on Hsp70 and Hsp40 co-chaperone interactions.
Main Results:
- Hsp100 chaperones are AAA+ ATPases crucial for protein disaggregation.
- Their function is linked to Hsp70 and Hsp40 co-chaperones.
- Structural features of Hsp100 facilitate the resolubilization of aggregated proteins.
Conclusions:
- Hsp100 chaperones are essential protein quality control machines.
- Understanding their mechanism provides insights into protein homeostasis.
- Further research on co-chaperone interactions can reveal therapeutic targets.
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