Hidden Stochastic Nature of a Single Bacterial Motor

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Hidden Stochastic Nature of a Single Bacterial Motor

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Title: Hidden Stochastic Nature of a Single Bacterial Motor
Author: Cluzel, Philippe; Park, Heungwon; Emonet, Thierry; Korobkova, Ekaterina A.

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Citation: Korobkova, Ekaterina A., Thierry Emonet, Heungwon Park, and Philippe Cluzel. 2006. Hidden stochastic nature of a single bacterial motor. Physical Review Letters 96, no. 5: 058105.
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Abstract: The rotary flagellar motor of Escherichia coli bacterium switches stochastically between the clockwise (CW) and counterclockwise (CCW) direction. We found that the CW and CCW intervals could be described by a gamma distribution, suggesting the existence of hidden Markov steps preceding each motor switch. Power spectra of time series of switching events exhibited a peaking frequency instead of the Lorentzian profile expected from standard kinetic two-state models. Our analysis indicates that the number of hidden steps may be a key dynamical parameter underlying the switching process in a single bacterial motor as well as in large cooperative molecular systems.
Published Version: http://dx.doi.org/10.1103/PhysRevLett.96.058105
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:11688765
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