Figure 8.

Results of simulations showing the ratio of band width at 500 s over initial band width versus unconnected filament turnover time t_turn and initial band width. Each point is an average of 100 simulations; error bars represent one standard deviation. (A) Ratio of band width versus t_turn for parameter values corresponding to pure SCPR, and SCPR with the alignment mechanism. Two sets of alignment parameters are shown, corresponding to points A and B in figure 4. All other parameters were fixed to the values described in the main text. Changes in t_turn influence the average filament length of unconnected filaments, t_turnv_pol, where v_pol = 0.2 μm s⁻¹. For small values of t_turn, the band of nodes fails to condense and small aggregates form. The behavior is similar for all three cases. Note that the case of ‘point B’ leads to wider bands compared to the other two cases (see figure 6). (B) Ratio of band width versus initial width, as in panel (A). The number of nodes was changed in proportion to the initial width such that the average density of nodes remained unchanged. Very wide bands fail to condense to rings and the behavior is similar for all three cases.