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The membrane-bound enzyme cytochrome c oxidase, the terminal member in the respiratory chain, converts oxygen into water and generates an electrochemical gradient by coupling the electron transfer to proton pumping across the membrane. Here we have investigated the dynamics of an excess proton and the surrounding protein environment near the active sites. The multi-state empirical valence bond (MS-EVB)...
The molecular mechanism for proton conduction in the D-pathway of Cytochrome c Oxidase (CcO) is investigated through the free energy profile, i.e., potential of mean force (PMF) calculations of both the native enzyme and the N98D mutant. The multistate empirical valence bond (MS-EVB) model was applied to simulate the interaction of an excess proton with the channel environment. In the study of the...
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