Continuum Description of the Cytoskeleton: Ring Formation in the Cell Cortex

Details Continuum Description of the Cytoskeleton: Ring Formation in the Cell Cortex Continuum Description of the Cytoskeleton: Ring Formation in the Cell Cortex

2005-10-27

arxiv.org/abs/q-bio/0510050v1

Biology

Quantitative Biology

Subcellular Processes

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.95.258103

Motivated by the formation of ring-like filament structures in the cortex of plant and animal cells, we study the dynamics of a two-dimensional layer of cytoskeletal filaments and motor proteins near a surface by a general continuum theory. As a result of active processes, dynamic patterns of filament orientation and density emerge via instabilities. We show that self-organization phenomena can lead to the formation of stationary and oscillating rings. We present state diagrams which reveal a rich scenario of asymptotic behaviors and discuss the role of boundary conditions.

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