Life · life
Bacterial flagellar motor
Motor · H
- Numbers
- Up to a few hundred revolutions a second in E. coli, and over a thousand in some species.
- Kind
- Motor
Function
An electric motor built from protein: a rotor, a ring of stator units, and a drive shaft turning a helical filament like a propeller. It is driven by protons falling across the membrane, and it can reverse in under a millisecond, which is how a bacterium changes direction.
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