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Flavobacterium gliding model. A Flavobacterium cell with two gliding motors attached to a baseplate mounted on a looped track (bottom). Two SprB filaments are attached to the baseplate and move with it. If either of these filaments adheres to the substratum, the cell glides. Shearing shortens the filaments and disrupts the baseplate, so that each filament is driven by a different motor. If one filament adheres to the substratum, the cell body spins about the axis of the motor.
