molecular motor

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Molecules capable of generating torque or movement of other molecules. The smallest known molecular motors are the ATPases responsible for the rotation of bacterial flagellae. The only known enzyme component that must rotate to perform its catalytic function is the F1-ATPase subunit of the ATP synthase holoenzyme that spans the membranes of mitochondria. F1-ATPase is less than one-tenth the size of the motors that drive bacterial flagellae. See motor proteins.

Subjects: Genetics and Genomics.

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