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. 2008 Jan 28;94(8):3115–3125. doi: 10.1529/biophysj.107.120014

FIGURE 2.

FIGURE 2

Outcomes of GFP-labeled single motor complexes on encountering a microtubule intersection from an overpass or an underpass. (A) Actions of single molecules of kinesin-GFP when encountering an intersection from the underpass (dark red) or overpass (light red) (mean ± SE; n > 60). Kinesin motors mostly pass and dissociate at intersections. (B) Actions of single molecules of dynein-dynactin-GFP when encountering an intersection from the underpass (dark blue) or overpass (light blue) (mean ± SE; n > 30). For dynein-dynactin, all five actions are about equally likely when a complex approaches from an overpass or underpass microtubule.