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Updated: Jan 15, 2026
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Three-dimensional Imaging of Bacterial Cells for Accurate Cellular Representations and Precise Protein Localization
Published on: October 29, 2019
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Spatial landscape and flux for exploring protein pattern formation in rod-shaped bacteria
DingGe Wu1,2, Jie Su2, Jin Wang1,2,3
1Postgraduate Training Base Alliance, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
The Journal of Chemical Physics
|October 6, 2025
Summary
Scientists used nonequilibrium landscape-flux theory to understand how Min proteins form spatial patterns for bacterial cell division. They found that flux drives pattern switching, offering insights into biological pattern dynamics and cell division timing.
Area of Science:
- Biophysics
- Cell Biology
- Systems Biology
Background:
- Spatial patterns of biomacromolecules, like Min proteins in bacteria, are crucial for cellular processes such as symmetric cell division.
- Understanding the mechanisms of spatial pattern formation and transitions is key to comprehending fundamental biological functions.
Purpose of the Study:
- To investigate the physical mechanisms governing the formation, stability, and transitions of spatial patterns in the bacterial Min protein system.
- To apply nonequilibrium landscape-flux theory and mode expansion to analyze these dynamic patterns.
Main Methods:
- Utilized nonequilibrium landscape-flux theory to quantify the potential landscape in mode space.
- Employed the mode expansion method to analyze spatial patterns.
- Analyzed the role of nonequilibrium flux in driving pattern transitions.
Main Results:
- Identified distinct stable spatial patterns as potential wells, offering a global view of system stability.
- Demonstrated that nonequilibrium flux drives spatial pattern switching with changes in cell length or detachment rates.
- Observed peaks in flux and entropy production near phase boundaries, indicating critical transitions.
Conclusions:
- Spatial landscape topography and flux dynamics collectively regulate protein pattern formation, stability, and switching.
- Established a framework linking nonequilibrium physics to biological functions, applicable to understanding cell division.
- The framework may enable early warning signal detection for cell division.
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