Figure 6: Average forces on actin filaments as a function of the number of motors bound to the filament.

(Left) The average force <F> (over 10 realizations) of the traces of the beads attached to the barbed-end of the actin filaments as a function of the average number of actin-bound motors, N, on a diffusive surface obtained from the simulations. An increasing percentage of non-diffusing motors (m = 1%, 5%) that dynamically interact with the surface results in an increase in the average force. The dependence of the average force on the number of motors when they are rigidly attached to a non-diffusing nitrocellulose (NC) surface is also shown. Error bars show standard deviation. (Right) Average force values and standard deviations obtained from experimental data at the indicated protein concentrations are shown.