Distributions of predicted centrosome orientations for the indicated microtubule number (rows) and length (columns).

<p>α = 0 means the ideal functional orientation centrosome-down, and α = 180° means the opposite, non-functional orientation with the centrosome away from the stimulatory substrate. Numbers with arrows indicate histogram bins, sample microtubule cytoskeletons from which are shown in the correspondingly labeled parts of <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0003861#pone-0003861-g004" target="_blank">Fig. 4</a>.