Condensation of actin filaments pushing against a barrier

Details Condensation of actin filaments pushing against a barrier Condensation of actin filaments pushing against a barrier

2011-01-06

arxiv.org/abs/1101.1180v4

Physics

Condensed Matter

Statistical Mechanics

21 pages, 6 figures: Combined figures, fixed typos, added extra material, altered symbolism to avoid confusion. Accepted by Ne

Scientific paper

We develop a model to describe the force generated by the polymerization of an array of parallel biofilaments. The filaments are assumed to be coupled only through mechanical contact with a movable barrier. We calculate the filament density distribution and the force-velocity relation with a mean-field approach combined with simulations. We identify two regimes: a non-condensed regime at low force in which filaments are spread out spatially, and a condensed regime at high force in which filaments accumulate near the barrier. We confirm a result previously known from other related studies, namely that the stall force is equal to N times the stall force of a single filament. In the model studied here, the approach to stalling is very slow, and the velocity is practically zero at forces significantly lower than the stall force.

Affiliated with

Also associated with

No associations

Rating

Condensation of actin filaments pushing against a barrier does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Condensation of actin filaments pushing against a barrier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Condensation of actin filaments pushing against a barrier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-399165