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Related Concept Videos

Protein Folding01:22

Protein Folding

Overview
Protein Folding01:22

Protein Folding

Overview
Protein Folding01:25

Protein Folding

Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Molecular Chaperones and Protein Folding03:00

Molecular Chaperones and Protein Folding

The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
Molecular Chaperones and Protein Folding03:00

Molecular Chaperones and Protein Folding

The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to form...

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Related Experiment Video

Updated: Jun 4, 2026

Microfluidic Mixers for Studying Protein Folding
12:42

Microfluidic Mixers for Studying Protein Folding

Published on: April 10, 2012

Challenges in protein folding simulations: Timescale, representation, and analysis.

Lydia Freddolino1, Christopher B Harrison1, Yanxin Liu1,2

  • 1Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL 61801.

Nature Physics
|February 8, 2011
PubMed
Summary

Molecular dynamics simulations provide high-resolution data on protein folding, overcoming experimental limitations. Recent advances in technology and theory are improving the accuracy and sampling of these simulations for better insights into folding mechanisms.

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Last Updated: Jun 4, 2026

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Area of Science:

  • Biophysics
  • Computational Biology
  • Structural Biology

Background:

  • Experimental protein folding studies often yield low-resolution data with insufficient temporal detail.
  • Molecular dynamics (MD) simulations offer high-resolution spatial and temporal insights into protein folding.
  • Current limitations in MD simulations include force field accuracy and inadequate sampling for mechanism elucidation.

Purpose of the Study:

  • To review progress in simulating common protein folding model systems.
  • To discuss how technological and theoretical advancements address current shortcomings in protein folding simulations.

Main Methods:

  • Review of recent computational studies on protein folding.
  • Analysis of advancements in simulation technologies and theoretical approaches.

Main Results:

  • Progress has been made in simulating three common protein folding model systems.
  • Emerging technologies and theories are enhancing the capabilities of MD simulations for protein folding.

Conclusions:

  • MD simulations are a powerful complementary tool to experimental methods for studying protein folding.
  • Ongoing advancements are improving the reliability and scope of computational approaches to protein folding mechanisms.