Abstract We propose a two-dimensional model for a complete description of the dynamics of molecular motors, including both the processive movement along track filaments and the dissociation from the filaments. Theoretical results on the distributions of the run length and dwell time at a given adenosine triphosphate (ATP) concentration, the dependences of mean run length, mean dwell time and mean velocity on ATP concentration and load are in good agreement with the previous experimental results.
Received: 09 September 2003
Revised: 18 March 2004
Accepted manuscript online:
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