| Issue |
Europhys. Lett.
Volume 58, Number 3, May 2002
|
|
|---|---|---|
| Page(s) | 468 - 474 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2002-00662-4 | |
| Published online | 01 August 2002 | |
Walks of molecular motors in two and three dimensions
1
Institute for Theoretical Physics,
University of Amsterdam
Valckenierstraat 65, 1018 XE Amsterdam,
The Netherlands
2
Max-Planck Institute for Colloid- and
Interface Research, MPI KG
14424 Potsdam, Germany
Received:
10
September
2001
Accepted:
8
February
2002
Molecular motors interacting with cytoskeletal filaments undergo peculiar random walks consisting of alternating sequences of directed movements along the filaments and diffusive motion in the surrounding solution. An ensemble of motors is studied which interacts with a single filament in two and three dimensions. The time evolution of the probability distribution for the bound and unbound motors is determined analytically. The diffusion of the motors is strongly enhanced parallel to the filament. The analytical expressions are in excellent agreement with the results of Monte Carlo simulations.
PACS: 87.16.Nn – Motor proteins / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 05.60.-k – Transport processes
© EDP Sciences, 2002
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