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Navigating the complexities of multi-domain protein folding.

Nandakumar Rajasekaran1, Christian M Kaiser2

  • 1CMDB Graduate Program, Johns Hopkins University, Baltimore, MD, United States.

Current Opinion in Structural Biology
|March 3, 2024
PubMed
Summary

Protein complexity grows through polypeptide chains, posing folding challenges. This review explores co-translational processes and chaperone roles in multi-domain protein folding.

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Area of Science:

  • Molecular Biology
  • Evolutionary Biology
  • Biochemistry

Background:

  • Proteome complexity has increased over evolutionary time, driving biological diversification.
  • This complexity arises from combining limited structural units into long polypeptides.
  • Multi-domain protein folding presents unique challenges compared to small, single-domain proteins.

Purpose of the Study:

  • To review recent experimental advancements in understanding multi-domain protein folding.
  • To highlight the distinct folding mechanisms of multi-domain proteins.
  • To discuss the roles of co-translational processes and chaperones in protein folding.

Main Methods:

  • Review of recent experimental literature.
  • Analysis of co-translational folding mechanisms.
  • Investigation of chaperone-assisted protein folding.

Main Results:

  • Multi-domain protein folding is distinct from single-domain protein folding.
  • Co-translational processes are crucial for the proper folding of nascent polypeptides.
  • Chaperone interactions play a significant role in guiding and stabilizing protein structures.

Conclusions:

  • Understanding multi-domain protein folding is key to comprehending proteome complexity.
  • Co-translational folding and chaperone activity are essential regulatory mechanisms.
  • Continued research is vital for elucidating the intricacies of protein biogenesis.