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. 2013 Aug 12;110(35):14132–14137. doi: 10.1073/pnas.1302736110

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Fig. 3. — Filament reorganization mechanisms. (A) Repulsive direction: a filament preferentially reorients away from a direction either to minimize physical curvature or minimize interactions. (B–D) Polar flow reorientation: rather than aligning nematically with flow shear, filaments can align in a polar fashion with flow itself. Alignment with the plus end downstream is stable (B), but hydrodynamic drag on vesicles bound to the filament competes with friction from wall restriction when the motor is not free to walk downstream (C and D).

Inline graphic — Filament reorganization mechanisms. (A) Repulsive direction: a filament preferentially reorients away from a direction either to minimize physical curvature or minimize interactions. (B–D) Polar flow reorientation: rather than aligning nematically with flow shear, filaments can align in a polar fashion with flow itself. Alignment with the plus end downstream is stable (B), but hydrodynamic drag on vesicles bound to the filament competes with friction from wall restriction when the motor is not free to walk downstream (C and D).