Redox-Driven Proton Pumps of the Respiratory Chain
نویسندگان
چکیده
منابع مشابه
Redox-driven membrane-bound proton pumps.
In recent years, remarkable progress has been made in our understanding of the structure and function of membrane-bound proton transporters at the molecular level. Perhaps the most challenging and complex of these molecular machines are the haem–copper oxidases. These enzymes are designed to activate the kinetically stable O2 molecule, to prevent the release of potentially toxic oxygen intermed...
متن کاملThe cytochrome oxidase superfamily of redox-driven proton pumps.
Most respiratory oxidases of eukaryotic and prokaryotic organisms are members of a superfamily of enzymes that couple the redox energy available from the reduction of molecular oxygen to the mechanism of pumping protons across the membrane. The recent applications of site-directed mutagenesis and of a variety of spectroscopic techniques have allowed major advances in our understanding of the st...
متن کاملFörster mechanism of electron-driven proton pumps.
We examine a simple model of proton pumping through the inner membrane of mitochondria in the living cell. We demonstrate that the pumping process can be described using approaches of condensed matter physics. In the framework of this model, we show that the resonant Förster-type energy exchange due to electron-proton Coulomb interaction can provide a unidirectional flow of protons against an e...
متن کاملA nanomechanical device based on light-driven proton pumps.
In this paper, a hybrid device based on a microcantilever interfaced with bacteriorhodopsin (bR) is constructed. The microcantilever, on which the highly oriented bR film is self-assembled, undergoes controllable and reversible bending when the light-driven proton pump protein, bR, on the microcantilever surface is activated by visible light. Several control experiments are carried out to precl...
متن کاملResonant energy transfer in electron - driven proton pumps
1 Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198, Japan 2 CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan 3 Quantum Cat. Analytics, 1751 67 St. #E11, Brooklyn, New York 11204, USA 4 Department of Physics, Queens College, The City University of New York, Flushing, New York 11367, USA 5 Department of Eng...
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: Biophysical Journal
سال: 2018
ISSN: 0006-3495
DOI: 10.1016/j.bpj.2018.07.022