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Dynamic New World: Refining Our View of Protein Structure, Function and Evolution.

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Proteins are not static; their flexibility is key to function and evolution. This review explores how protein dynamism challenges traditional views and redefines our understanding of protein structure and function.

Keywords:
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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Structural Biology

Background:

  • Traditional protein models assume a single, static structure dictates function.
  • Emerging evidence highlights the prevalence of structural dynamism in functional proteins.
  • This challenges established paradigms in molecular biology.

Purpose of the Study:

  • To review the historical understanding of protein structure and function.
  • To explore the implications of protein dynamism on protein sequence, structure, and evolution.
  • To suggest modifications to protein definitions to include intrinsically disordered proteins (IDPs).

Main Methods:

  • Literature review of historical and recent research on protein structure and dynamics.
  • Analysis of the relationship between protein dynamism and various functional aspects.
  • Synthesis of findings to propose a revised understanding of protein properties.

Main Results:

  • High structural dynamism is more common in functional proteins than previously thought.
  • Dynamism influences protein sequence, binding modes, promiscuity, and evolvability.
  • The concept of protein origination is illuminated by dynamic principles.

Conclusions:

  • Protein structure is not always static; flexibility is integral to function.
  • A dynamic view of proteins necessitates revising textbook definitions.
  • Incorporating intrinsically disordered proteins (IDPs) into broader protein definitions is crucial.