Oxygen Activation and Energy Conservation by Cytochrome c Oxidase

M Wikström, K Krab, V Sharma - Chemical reviews, 2018 - ACS Publications
This review focuses on the type A cytochrome c oxidases (C c O), which are found in all
mitochondria and also in several aerobic bacteria. C c O catalyzes the respiratory reduction …

Copper active sites in biology

EI Solomon, DE Heppner, EM Johnston… - Chemical …, 2014 - ACS Publications
On the basis of its generally accessible I/II redox couple and bioavailability, copper plays a
wide variety of roles in nature that mostly involve electron transfer (ET), O 2 binding …

Structural insights into functional properties of the oxidized form of cytochrome c oxidase

I Ishigami, RG Sierra, Z Su, A Peck, C Wang… - Nature …, 2023 - nature.com
Cytochrome c oxidase (C c O) is an essential enzyme in mitochondrial and bacterial
respiration. It catalyzes the four-electron reduction of molecular oxygen to water and …

Synthetic Fe/Cu complexes: toward understanding heme-copper oxidase structure and function

SM Adam, GB Wijeratne, PJ Rogler, DE Diaz… - Chemical …, 2018 - ACS Publications
Heme-copper oxidases (HCOs) are terminal enzymes on the mitochondrial or bacterial
respiratory electron transport chain, which utilize a unique heterobinuclear active site to …

Long-range charge transfer mechanism of the III2IV2 mycobacterial supercomplex

D Riepl, AP Gamiz-Hernandez, T Kovalova… - Nature …, 2024 - nature.com
Aerobic life is powered by membrane-bound redox enzymes that shuttle electrons to oxygen
and transfer protons across a biological membrane. Structural studies suggest that these …

Adaptation of aerobic respiration to low O2 environments

H Han, J Hemp, LA Pace, H Ouyang… - Proceedings of the …, 2011 - National Acad Sciences
Aerobic respiration in bacteria, Archaea, and mitochondria is performed by oxygen
reductase members of the heme-copper oxidoreductase superfamily. These enzymes are …

Electric fields control water-gated proton transfer in cytochrome c oxidase

P Saura, D Riepl, DM Frey… - Proceedings of the …, 2022 - National Acad Sciences
Aerobic life is powered by membrane-bound enzymes that catalyze the transfer of electrons
to oxygen and protons across a biological membrane. Cytochrome c oxidase (C c O) …

Role of protonation states in the stability of molecular dynamics simulations of high-resolution membrane protein structures

J Lasham, A Djurabekova, V Zickermann… - The Journal of …, 2024 - ACS Publications
Classical molecular dynamics (MD) simulations provide unmatched spatial and time
resolution of protein structure and function. However, the accuracy of MD simulations often …

Characterizing the proton loading site in cytochrome c oxidase

J Lu, MR Gunner - Proceedings of the National Academy of …, 2014 - National Acad Sciences
Cytochrome c oxidase (CcO) uses the energy released by reduction of O2 to H2O to drive
eight charges from the high pH to low pH side of the membrane, increasing the …

Network analysis of a proposed exit pathway for protons to the P-side of cytochrome c oxidase

X Cai, K Haider, J Lu, S Radic, CY Son, Q Cui… - … et Biophysica Acta (BBA …, 2018 - Elsevier
Abstract Cytochrome c Oxidase (CcO) reduces O 2, the terminal electron acceptor, to water
in the aerobic, respiratory electron transport chain. The energy released by O 2 reductions is …