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  • Title: Chemomechanical coupling mechanism of F(1)-ATPase: catalysis and torque generation.
    Author: Watanabe R, Noji H.
    Journal: FEBS Lett; 2013 Apr 17; 587(8):1030-5. PubMed ID: 23395605.
    Abstract:
    F1-ATPase (F1), a rotary motor protein driven by ATP hydrolysis, is unique with respect to its high efficiency and reversibility in converting chemical energy into mechanical work. Single-molecule studies have improved our understanding about the energy-conversion mechanism of F1 and the chemomechanical-coupling scheme under ATP hydrolysis conditions. A novel single-molecule technique was recently established to estimate the free-energy change of F1 during catalysis at elementary-step resolution, advancing our understanding about the energy-conversion mechanism of ATP hydrolysis and synthesis. The energy conversion mechanism of F1 elucidated from single-molecule studies provides us with important insights into the operating principles underlying molecular motors.
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