dorsal/arxiv
View SchemaCollective dynamics of molecular motors pulling on fluid membranes
| Authors | O. Campas, Y. Kafri, K. B. Zeldovich, J. Casademunt, J. -F. Joanny |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0512018 |
| URL | https://arxiv.org/abs/q-bio/0512018 |
| DOI | 10.1103/PhysRevLett.97.038101 |
| Journal | Phys. Rev. Lett. 97, 038101 (2006) |
Abstract
The collective dynamics of $N$ weakly coupled processive molecular motors are considered theoretically. We show, using a discrete lattice model, that the velocity-force curves strongly depend on the effective dynamic interactions between motors and differ significantly from a simple mean field prediction. They become essentially independent of $N$ if it is large enough. For strongly biased motors such as kinesin this occurs if $N\gtrsim 5$. The study of a two-state model shows that the existence of internal states can induce effective interactions.
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"abstract": "The collective dynamics of $N$ weakly coupled processive molecular motors are\nconsidered theoretically. We show, using a discrete lattice model, that the\nvelocity-force curves strongly depend on the effective dynamic interactions\nbetween motors and differ significantly from a simple mean field prediction.\nThey become essentially independent of $N$ if it is large enough. For strongly\nbiased motors such as kinesin this occurs if $N\\gtrsim 5$. The study of a\ntwo-state model shows that the existence of internal states can induce\neffective interactions.",
"arxiv_id": "q-bio/0512018",
"authors": [
"O. Campas",
"Y. Kafri",
"K. B. Zeldovich",
"J. Casademunt",
"J. -F. Joanny"
],
"categories": [
"q-bio.SC",
"physics.bio-ph"
],
"doi": "10.1103/PhysRevLett.97.038101",
"journal_ref": "Phys. Rev. Lett. 97, 038101 (2006)",
"title": "Collective dynamics of molecular motors pulling on fluid membranes",
"url": "https://arxiv.org/abs/q-bio/0512018"
},
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