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Related Concept Videos

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...
Protein Folding01:22

Protein Folding

Overview
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...
Protein and Protein Structure02:15

Protein and Protein Structure

Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...

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Updated: May 24, 2026

Microfluidic Mixers for Studying Protein Folding
12:42

Microfluidic Mixers for Studying Protein Folding

Published on: April 10, 2012

Protein folding is mechanistically robust.

Jeffrey K Weber1, Vijay S Pande

  • 1Department of Chemistry, Stanford University, Stanford, California, USA.

Biophysical Journal
|March 6, 2012
PubMed
Summary
This summary is machine-generated.

Markov state models (MSMs) reveal protein folding is mechanistically robust. This robustness suggests specific protein dynamics are stable, offering new insights into biophysical phenomena.

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Area of Science:

  • Computational Biology
  • Biophysics
  • Statistical Mechanics

Background:

  • Markov state models (MSMs) are valuable for simulating complex biological systems, particularly proteins.
  • MSMs represent protein dynamics on discrete-state energy landscapes, enabling efficient exploration of phase space.

Purpose of the Study:

  • To investigate the mechanistic robustness of protein folding using principles from MSMs.
  • To define 'mechanism' within the framework of Markovian models.

Main Methods:

  • Application of perturbation theory and parametric sloppiness to analyze MSM eigenspectra.
  • Introduction of a novel Bayesian metric for evaluating eigenspectrum robustness.

Main Results:

  • Demonstration that specific components of the MSM eigenspectrum exhibit resistance to perturbation.
  • Quantification of eigenspectrum robustness using the newly developed Bayesian metric.

Conclusions:

  • Protein folding exhibits significant mechanistic robustness.
  • The findings have implications for understanding biophysical phenomena and suggest new applications for MSMs.