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Nature 450, 625-626 (29 November 2007) | doi:10.1038/450625a; Published online 28 November 2007
Molecular motors: A step dissected
Zeynep Ökten1 & Manfred Schliwa1
Abstract
The motor protein kinesin 'walks' by alternately advancing its two motor structural domains. A cutting-edge, single-molecule fluorescence technique reveals further details of this stepping mechanism.
Suppose that walking required energy input in the form of, say, one Gummi bear for every step. In what position would you pop the next Gummi bear into your mouth?
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