Zobrazeno 1 - 5
of 5
pro vyhledávání: ''
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. (1):98-108
Cytochrome c oxidase is the terminal enzyme in the electron transfer chain. It reduces oxygen to water and harnesses the released energy to translocate protons across the inner mitochondrial membrane. The mechanism by which the oxygen chemistry is co
Autor:
Michelle A. Yu, Tsuyoshi Egawa, Myat T. Lin, Syun Ru Yeh, Denis L. Rousseau, Jonathan P. Hosler, Krithika Ganesan, Robert B. Gennis
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. (10):1342-1348
Both the aa(3)-type cytochrome c oxidase from Rhodobacter sphaeroides (RsCcO(aa3)) and the closely related bo(3)-type ubiquinol oxidase from Escherichia coli (EcQO(bo3)) possess a proton-conducting D-channel that terminates at a glutamic acid, E286,
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. (9):1129-1139
We have developed theory and the computational scheme for the analysis of the kinetics of the membrane potential generated by cytochrome c oxidase upon single electron injection into the enzyme. The theory allows one to connect the charge motions ins
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. (7):779-787
Oxidative redox titrations of the mitochondrial cytochromes were performed in near-anoxic RAW 264.7 cells by inhibiting complex I. Cytochrome oxidation changes were measured with multi-wavelength spectroscopy and the ambient redox potential was calcu
Publikováno v:
Biochimica et Biophysica Acta-Bioenergetics
Biochim.Biophys.Acta Bioenerg.
Biochim.Biophys.Acta Bioenerg.
The dioxygen reduction mechanism in cytochrome oxidases relies on proton control of the electron transfer events that drive the process. Proton delivery and proton channels in the protein that are relevant to substrate reduction and proton pumping ar