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Related Concept Videos

Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
Protein Diffusion in the Membrane01:24

Protein Diffusion in the Membrane

Proteins show rotational as well as lateral diffusion across the membrane. The lateral diffusion of proteins was confirmed through the cell fusion experiment where mouse and human cells were fused, resulting in hybrid cells. When the human and mouse cells fused, the specific membrane proteins on human and mouse cells were marked with the red and green-fluorescent markers, respectively. Initially, the red and green fluorescence was located on the respective hemisphere of the cell. As time...

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Related Experiment Video

Updated: May 7, 2026

Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web
09:51

Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web

Published on: July 16, 2017

Morphing methods to visualize coarse-grained protein dynamics.

Dahlia R Weiss1, Patrice Koehl

  • 1Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, USA.

Methods in Molecular Biology (Clifton, N.J.)
|September 25, 2013
PubMed
Summary
This summary is machine-generated.

Geometric morphing visualizes protein structure changes, but minimum energy path (MEP) interpolations reveal biologically relevant transition pathways between conformational states.

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Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
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Last Updated: May 7, 2026

Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web
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Published on: July 16, 2017

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
08:03

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy

Published on: April 13, 2022

Area of Science:

  • Structural Biology
  • Computational Biology
  • Biophysics

Background:

  • Morphing, originating in cinema, visualizes transformations between images.
  • Biologists utilize morphing to illustrate transitions between protein conformational states.
  • Existing morphing methods may not represent biologically accurate pathways.

Purpose of the Study:

  • To differentiate between geometric morphing and minimum energy path (MEP) interpolation.
  • To highlight the importance of MEPs in understanding protein conformational changes.
  • To emphasize the biological relevance of MEPs over purely visual representations.

Main Methods:

  • Reviewing the principles of geometric morphing in structural biology.
  • Analyzing the methodology behind minimum energy path (MEP) calculations.
  • Comparing the outputs and interpretations of both morphing techniques.

Main Results:

  • Geometric morphing creates visually appealing, but not necessarily biologically accurate, transition movies.
  • Minimum energy path (MEP) interpolations provide a pathway reflecting the true transition state between protein structures.
  • MEPs are crucial for understanding the energetic landscape of protein conformational changes.

Conclusions:

  • Geometric morphing serves as a visualization tool but lacks biological interpretability for pathways.
  • Minimum energy path (MEP) interpolation is essential for elucidating biologically relevant conformational transitions.
  • Accurate visualization of protein dynamics requires methods that consider the underlying energy landscape.