Cooperative effects on the kinetics of ATP hydrolysis in collective molecular motors.
Within the framework of a two-state ratchet model, cooperative effects of collective molecular motors on the kinetics of adenosine triphosphate (ATP) hydrolysis have been studied in detail. We calculate the dependence of the rate of ATP consumption on the applied load. Features different from a single molecular motor have been found. We analyze two typical oscillations of collective molecular motors. The relations between the ATP concentration and oscillatory characteristics, such as frequency, amplitude, and the duty ratio, have been discussed.
Institute of Theoretical Physics, The Chinese Academy of Sciences, P. O. Box 2735, Beijing 100080, China.
Yaogen
Y
Shu
Hualin
H
Shi
D000222:Adaptation, Physiological / Q000502:physiology; D000255:Adenosine Triphosphate / Q000737:chemistry / Q000378:metabolism*; D001683:Biological Clocks / Q000502:physiology*; D003198:Computer Simulation; D003299:Cooperative Behavior; D004734:Energy Metabolism / Q000502:physiology*; D004735:Energy Transfer / Q000502:physiology*; D006868:Hydrolysis; D007700:Kinetics; D008954:Models, Biological; D008956:Models, Chemical; D020409:Molecular Motor Proteins / Q000737:chemistry / Q000502:physiology*; D009068:Movement / Q000502:physiology*; D013314:Stress, Mechanical
D020409:Molecular Motor Proteins; D000255:Adenosine Triphosphate