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  A bistable mechanism for directional sensing

Beta, C., Amselem, G., & Bodenschatz, E. (2008). A bistable mechanism for directional sensing. New Journal of Physics, 10(8), 083015-1-083015-20. doi:10.1088/1367-2630/10/8/083015.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1363-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1364-2
Genre: Journal Article

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 Creators:
Beta, Carsten1, Author              
Amselem, Gabriel1, Author              
Bodenschatz, Eberhard1, Author              
Affiliations:
1Laboratory for Fluid Dynamics, Pattern Formation and Biocomplexity, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063287              

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 Abstract: We present a generic mechanism for directional sensing in eukaryotic cells that is based on bistable dynamics. As the key feature of this modeling approach, the velocity of trigger waves in the bistable sensing system changes its sign across cells that are exposed to an external chemoattractant gradient. This is achieved by combining a two-component activator/inhibitor system with a bistable switch that induces an identical symmetry breaking for arbitrary gradient input signals. A simple kinetic example is designed to illustrate the dynamics of a bistable directional sensing mechanism in numerical simulations.

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Language(s): eng - English
 Dates: 2008-08-14
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 412041
DOI: 10.1088/1367-2630/10/8/083015
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Title: New Journal of Physics
  Alternative Title : NJP
Source Genre: Journal
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Pages: - Volume / Issue: 10 (8) Sequence Number: - Start / End Page: 083015-1 - 083015-20 Identifier: -