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Related Concept Videos

Intrinsically Disordered Proteins02:18

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Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Author Spotlight: Exploring Intrinsically Disordered Protein Dynamics Through NMR Relaxation Experiments
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From Immunogenic Peptides to Intrinsically Disordered Proteins.

H Jane Dyson1, Peter E Wright1

  • 1Department of Integrative Structural and Computational Biology, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037.

Israel Journal of Chemistry
|March 8, 2024
PubMed
Summary

Proteins can function without stable structures. Insights into peptide behavior revealed that intrinsic disorder in proteins offers distinct functional advantages in cellular processes.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Structural Biology

Background:

  • The role of mentors in scientific breakthroughs can be challenging to ascertain.
  • Early research in the 1980s focused on the conformations of immunogenic peptides in aqueous solutions.

Purpose of the Study:

  • To explore the genesis of the idea that proteins do not require stable folding to be functional.
  • To highlight the importance of intrinsic disorder in protein function.

Main Methods:

  • Review of historical research and collaborative work on peptide conformations.
  • Analysis of how peptide behavior informed theories on protein structure-function relationships.

Main Results:

  • Insights from peptide studies provided a foundation for understanding polypeptides in solution.
  • Proteins were found to be functional even when lacking stable, folded structures.
  • Intrinsic disorder confers a significant functional advantage in numerous cellular processes.

Conclusions:

  • The realization that proteins can be functional while disordered emerged from peptide research.
  • Intrinsic disorder is not a limitation but a key feature for protein functionality in cells.