Shear Stress Transmission Model for the Flagellar Rotary Motor

doi:10.3390/ijms9091595

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Int. J. Mol. Sci. 2008, 9(9), 1595-1620; doi:10.3390/ijms9091595

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Shear Stress Transmission Model for the Flagellar Rotary Motor

Toshio Mitsui ¹^,* and Hiroyuki Ohshima ²

¹ Nakasuji-Yamate 3-6-24, Takarazuka, 665-0875, Japan
² Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan

^* Author to whom correspondence should be addressed.

Received: 23 May 2008; in revised form: 28 July 2008 / Accepted: 8 August 2008 / Published: 1 September 2008

This article belongs to the special issue Muscle Contraction Mechanism, Motor Proteins Function and Molecular Aspects of Water

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Abstract: Most bacteria that swim are propelled by flagellar filaments, which are driven by a rotary motor powered by proton flux. The mechanism of the flagellar motor is discussed by reforming the model proposed by the present authors in 2005. It is shown that the mean strength of Coulomb field produced by a proton passing the channel is very strong in the Mot assembly so that the Mot assembly can be a shear force generator and induce the flagellar rotation. The model gives clear calculation results in agreement with experimental observations, e g., for the charasteristic torque-velocity relationship of the flagellar rotation.

Keywords: Flagellar rotary motor; model for flagellar motor; proton-induced electric field in membrane; permanent electric dipole; viscoelasticity; motor driven by shear force; rotation velocity vs. proton deriving force; torque-velocity relation

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MDPI and ACS Style

Mitsui, T.; Ohshima, H. Shear Stress Transmission Model for the Flagellar Rotary Motor. Int. J. Mol. Sci. 2008, 9, 1595-1620.

AMA Style

Mitsui T., Ohshima H. Shear Stress Transmission Model for the Flagellar Rotary Motor. International Journal of Molecular Sciences. 2008; 9(9):1595-1620.

Chicago/Turabian Style

Mitsui, Toshio; Ohshima, Hiroyuki. 2008. "Shear Stress Transmission Model for the Flagellar Rotary Motor." Int. J. Mol. Sci. 9, no. 9: 1595-1620.

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