Mechanical Coupling in Myosin V: A Simulation Study
نویسندگان
چکیده
منابع مشابه
Mechanical coupling in myosin V: a simulation study.
Myosin motor function depends on the interaction between different domains that transmit information from one part of the molecule to another. The interdomain coupling in myosin V is studied with restrained targeted molecular dynamics using an all-atom representation in explicit solvent. To elucidate the origin of the conformational change due to the binding of ATP, targeting forces are applied...
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Myosin-V is a mechanical ratchet.
Myosin-V is a linear molecular motor that hydrolyzes ATP to move processively toward the plus end of actin filaments. Motion of this motor under low forces has been studied recently in various single-molecule assays. In this paper we show that myosin-V reacts to high forces as a mechanical ratchet. High backward loads can induce rapid and processive backward steps along the actin filament. This...
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The molecular motor myosin V has been studied extensively both in bulk and single molecule experiments. Based on the chemical states of the motor, we construct a systematic network theory that includes experimental observations about the stepping behavior of myosin V. We utilize constraints arising from nonequilibrium thermodynamics to determine motor parameters and demonstrate that the motor b...
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ژورنال
عنوان ژورنال: Journal of Molecular Biology
سال: 2010
ISSN: 0022-2836
DOI: 10.1016/j.jmb.2009.10.029