Concerted Mechanism of Rotary Motor F1, Using Hybrid Enzymes
نویسندگان
چکیده
منابع مشابه
F1-ATPase: A Rotary Motor Made of a Single Molecule
synthesis/hydrolysis of ATP in F 1 ? Almost 20 years ago Paul Boyer made a radical proposal that the two reactions are mechanically coupled by rotation of a common shaft penetrating F 0 and F 1 (see Boyer, 1997). Part of his * Department of Physics reasoning was that F1 contains three catalytic sites, one Faculty of Science and Technology on each , which participate on average equally in ATP K...
متن کاملF1-ATPase: a highly coupled reversible rotary motor.
F1 (F1-ATPase) is a highly coupled rotary molecular motor and hydrolyses three ATP molecules per turn (3 ATP/turn). Recently, we have developed femtolitre reaction chamber arrays for highly sensitive measurement of biological reactions. By combining this technique with the rotating magnetic tweezers, the coupling ratio of the reverse reaction, ATP synthesis catalysed by single F1 molecules, has...
متن کاملA Novel Rotary Piezoelectric Motor Using First Bending Hybrid Transducers
We report a novel rotary piezoelectric motor using bending transducers in this work. Three transducers are used to drive a disk-shaped rotor together by the elliptical movements of their driving tips; these motions are produced by the hybrid of two first bending vibration modes. The proposed piezoelectric transducer has a simple structure as it only contains an aluminum alloy beam and four piec...
متن کاملVibration Torque Measurement and Mechanism Analysis of Rotary Stepping Motor
Vibration torque are existence obviously during operation of stepping motor, it is a periodic structure vibration problem. In this paper, the actual vibration torque testing of stepper motor is executed through a selfmade vibration torque sensor, the experimental results show that the stepping motor vibration torque of single three shot operation is more bigger than the six shot, and obvious re...
متن کاملF1 rotary motor of ATP synthase is driven by the torsionally-asymmetric drive shaft
F1F0 ATP synthase (ATPase) either facilitates the synthesis of ATP in a process driven by the proton moving force (pmf), or uses the energy from ATP hydrolysis to pump protons against the concentration gradient across the membrane. ATPase is composed of two rotary motors, F0 and F1, which compete for control of their shared γ -shaft. We present a self-consistent physical model of F1 motor as a ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Seibutsu Butsuri
سال: 2009
ISSN: 0582-4052,1347-4219
DOI: 10.2142/biophys.49.080