Continuum description of the cytoskeleton: ring formation in the cell cortex

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DOI http://dx.doi.org/10.1103/physrevlett.95.258103
Reference A. Zumdieck, M. Cosentino Lagomarsino, C. Tanase, K. Kruse, B.M. Mulder, M. Dogterom and F. Jülicher, Continuum description of the cytoskeleton: ring formation in the cell cortex, Phys.Rev.Lett. 95, Article number: 258103: 1-4 (2005)
Group Theory of Biomolecular Matter

Motivated by the formation of ringlike 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 that reveal a rich scenario of asymptotic behaviors and discuss the role of boundary conditions