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Nonequilibrium-driven motion in actin networks: comet tails and moving beads
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Burroughs, Nigel John and Marenduzzo, Davide (2007) Nonequilibrium-driven motion in actin networks: comet tails and moving beads. Physical Review Letters, Vol.98 (No.23). Article: 238302. doi:10.1103/PhysRevLett.98.238302 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.98.238302
Abstract
We present 3D dynamic Monte-Carlo simulations of the growth of an actin network close to an obstacle coated with Wiskott-Aldrich syndrome protein (WASP), an inducer of actin branching. Our simulations incorporate both elasticity and relaxation of the actin tail, thus allowing for local network compression. Whilst steady state motility derives mainly from polymerization at the leading edge, nonthermal stored elastic energy and retrograde flow are observed in a thin slab of material close to the obstacle. We observe a crossover from steady to hopping bead motion as the branching rate is decreased.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 8 June 2007 | ||||
Dates: |
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Volume: | Vol.98 | ||||
Number: | No.23 | ||||
Number of Pages: | 4 | ||||
Page Range: | Article: 238302 | ||||
DOI: | 10.1103/PhysRevLett.98.238302 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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