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Folding while bound to chaperones.

Scott Horowitz1, Philipp Koldewey2, Frederick Stull3

  • 1Department of Chemistry & Biochemistry and the Knoebel Institute for Healthy Aging, University of Denver, 2155 E. Wesley Avenue, Denver, CO 80208, USA.

Current Opinion in Structural Biology
|July 23, 2017
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Summary
This summary is machine-generated.

Molecular chaperones prevent protein aggregation and aid folding. This review explores how proteins fold while bound to chaperones like Spy, GroEL, and SecB, discussing biological significance.

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Area of Science:

  • Molecular biology
  • Protein biochemistry

Background:

  • Chaperones are crucial for preventing protein aggregation and facilitating proper protein folding.
  • Understanding the precise mechanisms by which chaperones assist protein folding is a fundamental question in molecular biology.
  • The concept of proteins folding while associated with chaperones, initially observed with GroEL and SecB, has been recently revisited with the chaperone Spy.

Purpose of the Study:

  • To review and discuss the phenomenon of proteins folding while bound to chaperones.
  • To highlight the key features observed in cases where folding occurs during chaperone association.
  • To speculate on the biological importance and potential prevalence of this mechanism across different chaperones.

Main Methods:

  • Literature review of studies on chaperones Spy, GroEL, and SecB.
  • Analysis of reported observations of protein folding occurring during chaperone binding.
  • Comparative discussion of the characteristics of chaperone-assisted folding.

Main Results:

  • Proteins have been observed to fold while bound to specific chaperones, including GroEL, SecB, and Spy.
  • The chaperone Spy has recently renewed interest in the phenomenon of "folding while bound."
  • Distinct features characterize the folding process when it occurs in association with these chaperones.

Conclusions:

  • Folding while bound is a significant, albeit perhaps underappreciated, mechanism in chaperone-assisted protein folding.
  • Further research is warranted to elucidate the broader biological roles and occurrence of this folding mechanism across the chaperone superfamily.