Electric field modulated redox-driven protonation and hydration energetics in energy converting enzymes†
Electric field modulated redox-driven protonation and hydration energetics in energy converting enzymes†
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能量转换酶中电场调制的氧化还原驱动的质子化和水合能量学 –
DOI:
10.1039/c9cc01135h
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Ville R. I. Kaila
中科院分区:
文献类型:
--
作者:
Patricia Saura;D. Frey;A. P. Gamiz;Ville R. I. Kaila
Biological energy conversion is catalysed by proton-coupled electron transfer (PCET) reactions that form the chemical basis of respiratory and photosynthetic enzymes. Despite recent advances in structural, biophysical, and computational experiments, the mechanistic principles of these reactions still remain elusive. Based on common functional features observed in redox enzymes, we study here generic mechanistic models for water-mediated long-range PCET reactions. We show how a redox reaction within a buried protein environment creates an electric field that induces hydration changes between the proton acceptor and donor groups, and in turn, lowers the reaction barrier and increases the thermodynamic driving forces for the water-mediated PCET process. We predict linear free energy relationships, and discuss the proposed mechanism in context of PCET in cytochrome c oxidase.
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影响因子:
16.6
作者:
Fried SD;Boxer SG
通讯作者:
Boxer SG
DOI:
10.1016/j.bbabio.2018.06.001
发表时间:
2018-09
期刊:
Biochimica et biophysica acta. Bioenergetics
影响因子:
--
作者:
Di Luca A;Mühlbauer ME;Saura P;Kaila VRI
通讯作者:
Kaila VRI
DOI:
10.1098/rsif.2017.0916
发表时间:
2018-04
期刊:
Journal of the Royal Society, Interface
影响因子:
--
作者:
Kaila VRI
通讯作者:
Kaila VRI
影响因子:
62.1
作者:
Warren, Jeffrey J.;Tronic, Tristan A.;Mayer, James M.
通讯作者:
Mayer, James M.
DOI:
10.1073/pnas.1503761112
发表时间:
2015
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
作者:
Sharma V;Belevich G;Gamiz-Hernandez AP;Vattulainen I;Wikström M;Hummer G;Kaila VRI
通讯作者:
Kaila VRI