Related Experiment Video
Updated: Jul 8, 2025
08:50
The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton
Published on: March 10, 2023
796
Length control emerges from cytoskeletal network geometry
Shane G McInally1, Alexander J B Reading2, Aldric Rosario3
1Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, MA, 01609, USA.
Biorxiv : the Preprint Server for Biology
|December 11, 2023
Summary
Yeast cells control actin cable length through filament organization, not feedback. This emergent property allows cables to scale with cell size by adjusting formin activity.
Area of Science:
- Cell biology
- Biophysics
- Cytoskeletal dynamics
Background:
- Cytoskeletal networks, crucial for cell function, are organized into higher-order structures.
- Previous research focused on filament turnover feedback for cytoskeletal assembly control.
- Actin cables in yeast are vital higher-order structures with poorly understood length regulation.
Conclusions:
- A new paradigm for cytoskeletal higher-order structure control is proposed.
- Emergent properties of filament organization are key to actin cable length regulation.
- Cell size directly influences actin cable length through formin activity modulation.
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