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Alberts B, Johnson A, Lewis J, et al. Molecular Biology of the Cell. 4th edition. New York: Garland Science; 2002.

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Cover of Molecular Biology of the Cell

Molecular Biology of the Cell. 4th edition.

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Figure 15-67. The bacterial flagellar motor.

Figure 15-67The bacterial flagellar motor

The flagellum is linked to a flexible hook. The hook is attached to a series of protein rings (shown in red), which are embedded in the outer and inner (plasma) membranes. The rings form a rotor, which rotates with the flagellum at more than 100 revolutions per second. The rotation is driven by a flow of protons through an outer ring of proteins (see Figure 14-17), the stator, which also contains the proteins responsible for switching the direction of rotation. (Based on data from T. Kubori et al., J. Mol. Biol. 226:433–446, 1992, and N.R. Francis et al., Proc. Natl. Acad. Sci. USA 89:6304–6308, 1992.)

Image ch14f17

From: Signaling through Enzyme-Linked Cell-Surface Receptors

Copyright © 2002, Bruce Alberts, Alexander Johnson, Julian Lewis, Martin Raff, Keith Roberts, and Peter Walter; Copyright © 1983, 1989, 1994, Bruce Alberts, Dennis Bray, Julian Lewis, Martin Raff, Keith Roberts, and James D. Watson .

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