Charge transfer through a fragment of the respiratory complex I and its regulation: an atomistic simulation approach.
Charge transfer through a fragment of the respiratory complex I and its regulation: an atomistic simulation approach.
复制标题
通过呼吸复合物 I 片段的电荷转移及其调节:原子模拟方法。
DOI:
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发表时间:
2018
期刊:
影响因子:
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通讯作者:
Thorsten Koslowski
中科院分区:
文献类型:
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作者:
Sehee Na;S. Jurkovic;T. Friedrich;Thorsten Koslowski
We simulate electron transfer within a fragment of the NADH:ubiquinone oxidoreductase (respiratory complex I) of the hyperthermophilic bacterium Aquifex aeolicus. We apply molecular dynamics simulations, thermodynamic integration, and a thermodynamic network least squares analysis to compute two key parameters of Marcus' theory of charge transfer, the thermodynamic driving force and the reorganization energy. Intramolecular contributions to the Gibbs free energy differences of electron and hydrogen transfer processes, ΔG, are accessed by calibrating against experimental redox titration data. This approach permits the computation of the interactions between the species NAD+, FMNH2, N1a-, and N3-, and the construction of a free energy surface for the flow of electrons within the fragment. We find NAD+ to be a strong candidate for the regulation of charge transfer.
影响因子:
56.9
作者:
Zickermann, Volker;Wirth, Christophe;Brandt, Ulrich
通讯作者:
Brandt, Ulrich
影响因子:
4.3
作者:
Medvedev, Emile S.;Couch, Vernon A.;Stuchebrukhov, Alexei A.
通讯作者:
Stuchebrukhov, Alexei A.