Electron hopping through proteins.
Electron hopping through proteins.
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DOI:
10.1016/j.ccr.2012.03.032
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发表时间:
2012-11-01
影响因子:
20.6
通讯作者:
Gray HB
中科院分区:
文献类型:
--
作者:
Warren JJ;Ener ME;Vlček A Jr;Winkler JR;Gray HB
Biological redox machines require efficient transfer of electrons and holes for function. Reactions involving multiple tunneling steps, termed “hopping,” often promote charge separation within and between proteins that is essential for energy storage and conversion. Here we show how semiclassical electron transfer theory can be extended to include hopping reactions: graphical representations (called hopping maps) of the dependence of calculated two-step reaction rate constants on driving force are employed to account for flow in a rhenium-labeled azurin mutant as well as in two structurally characterized redox enzymes, DNA photolyase and MauG. Analysis of the 35 Å radical propagation in ribonucleotide reductases using hopping maps shows that all tyrosines and tryptophans on the radical pathway likely are involved in function. We suggest that hopping maps can facilitate the design and construction of artificial photosynthetic systems for the production of fuels and other chemicals.
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影响因子:
62.1
作者:
Dempsey, Jillian L.;Winkler, Jay R.;Gray, Harry B.
通讯作者:
Gray, Harry B.
影响因子:
2.9
作者:
Jiang, Wei;Hoffart, Lee M.;Martin Bollinger, J., Jr.
通讯作者:
Martin Bollinger, J., Jr.
影响因子:
56.9
作者:
BERATAN, DN;ONUCHIC, JN;GRAY, HB
通讯作者:
GRAY, HB
影响因子:
20.6
作者:
Hartings MR;Kurnikov IV;Dunn AR;Winkler JR;Gray HB;Ratner MA
通讯作者:
Ratner MA
影响因子:
2.8
作者:
Gray, Harry B.;Winkler, Jay R.
通讯作者:
Winkler, Jay R.