Dynamic and coordinating domain motions in the active subunits of the F1-ATPase molecular motor

2006 ◽  
Vol 1764 (10) ◽  
pp. 1553-1560 ◽  
Author(s):  
Ming S. Liu ◽  
B.D. Todd ◽  
Richard J. Sadus
Keyword(s):  
Molecular Motor ◽  
F1 Atpase ◽  
Domain Motions ◽  
Active Subunits

POWER AND EFFICIENCY OF F1-ATPase MOLECULAR MOTOR

2012 ◽  
Vol 11 (01) ◽  
pp. 1240003
Author(s):  
J. M. SANCHO ◽  
RUBEN PEREZ-CARRASCO
Keyword(s):  
Experimental Data ◽  
Angular Velocity ◽  
Molecular Motor ◽  
Transition Rates ◽  
Motor Power ◽  
F1 Atpase ◽  
Flashing Ratchet ◽  
Model Predictions ◽  
Good Agreement ◽  
Ratchet Potential

We present the study of the energetics of the F1-ATPase rotatory molecular motor. The dynamics of this machine are described by a overdamped Langevin equation with a dichotomous flashing ratchet potential whose transition rates are controlled by an analysis of the chemical and physical steps. The model predictions on the observable angular velocity are in good agreement with the experimental data. Inspired by these results we extend our approach to study the energetics of this motor. Power and efficiency are analyzed for different experimental situations which can be tested in experiments.

scholarly journals 1P176 Observation of the rotation of F1-ATPase(11.Molecular motor,Poster,The 51st Annual Meeting of the Biophysical Society of Japan)

2013 ◽  
Vol 53 (supplement1-2) ◽  
pp. S135
Author(s):  
Yohsuke Kikuchi ◽  
Takahiro Nakayama ◽  
Shoichi Toyabe ◽  
Eiroh Muneyuki
Keyword(s):  
Annual Meeting ◽  
Molecular Motor ◽  
F1 Atpase ◽  
Biophysical Society
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