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Updated: May 2, 2026
14:59
Method for Measurement of Viral Fusion Kinetics at the Single Particle Level
Published on: September 7, 2009
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Single-Virus Microscopy of Biochemical Events in Viral Entry
Marcos Cervantes1, Steinar Mannsverk2, Tobin Hess3
1Department of Biomedical Engineering, University of Virginia, Box 800759, Charlottesville, Virginia 22908, United States.
JACS Au
|January 31, 2025
Summary
Single-virus microscopy reveals complex viral entry mechanisms. This technique quantizes viral binding and fusion, enhancing our understanding of enveloped virus-host interactions and entry kinetics.
Area of Science:
- Biophysics
- Virology
- Cell Biology
Background:
- Enveloped virus entry involves intricate viral-host protein interactions and membrane mechanics.
- Understanding these complex, heterogeneous events has been a significant challenge in virology.
Purpose of the Study:
- To review progress in single-virus microscopy for studying viral entry.
- To describe methods for robust measurement of virus-membrane interactions.
Main Methods:
- Utilizing single-virus microscopy to probe viral binding and fusion kinetics at the single-event level.
- Analyzing single-event distributions from individual viral particle measurements.
Main Results:
- Enables estimation of protein stoichiometry at fusion interfaces.
- Improves understanding of rate-limiting steps in viral fusion.
- Facilitates identification of biochemical regulators of viral entry.
Conclusions:
- Single-virus microscopy is a powerful, increasingly accessible technique for dissecting enveloped virus entry.
- This approach provides quantitative insights into virus-membrane interactions across diverse viruses and substrates.
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