We will unveil operation principles of protein molecular machines. One of the representatives of protein molecular machines is linear and rotary molecular motors. Molecular motors generate mechanical forces and torques that drive their unidirectional motions from the energy of chemical reaction or the potential energy. We are studying linear [1-5] and rotary molecular motors [6-8]. Especially, we focus on new molecular motors such as chitinases, cellulases and V-ATPases.
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