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News and Views
Nature 431, 1047 (28 October 2004) | doi:10.1038/4311047b; Published online 27 October 2004
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Molecular motors: Smooth coupling in Salmonella
Christopher Surridge
Bacteria such as Salmonella typhimurium move by the action of their flagella. Depending on the direction of rotation, flagella either act singly, causing uncoordinated tumbling, or clump together into a single helical propeller for straight-line swimming.
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