Charge Transfer between [4Fe4S] Proteins and DNA Is Unidirectional: Implications for Biomolecular Signaling.
Charge Transfer between [4Fe4S] Proteins and DNA Is Unidirectional: Implications for Biomolecular Signaling.
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[4Fe4S] 蛋白质和 DNA 之间的电荷转移是单向的:对生物分子信号传导的影响。
DOI:
10.1016/j.chempr.2018.09.026
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发表时间:
2019
期刊:
影响因子:
23.5
通讯作者:
Migliore,Agostino
中科院分区:
文献类型:
--
作者:
Teo,RuijieD;Rousseau,BenjaminJG;Smithwick,ElizabethR;DiFelice,Rosa;Beratan,DavidN;Migliore,Agostino
Recent experiments suggest that DNA-mediated charge transport might enable signaling between the [4Fe4S] clusters in the C-terminal domains of human DNA primase and polymerase α, as well as the signaling between other replication and repair high-potential [4Fe4S] proteins. Our theoretical study demonstrates that the redox signaling cannot be accomplished exclusively by DNA-mediated charge transport because part of the charge-transfer chain has an unfavorable free energy profile. We show that hole or excess electron transfer between a [4Fe4S] cluster and a nucleic acid duplex through a protein medium can occur within microseconds in one direction while it is kinetically hindered in the opposite direction. We present a set of signaling mechanisms that may occur with the assistance of oxidants or reductants, using the allowed charge-transfer processes. These mechanisms would enable the coordinated action of [4Fe4S] proteins on DNA, engaging the [4Fe4S] oxidation state dependence of the protein-DNA binding affinity.
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DOI:
10.1021/jp904295q
发表时间:
2009-07-16
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
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通讯作者:
Di Felice R
DOI:
10.1016/s0005-2728(00)00069-4
发表时间:
2000-05
期刊:
Biochimica et biophysica acta
影响因子:
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作者:
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Cecilia Tommos;Gerald T. Babcock
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3
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Olson, Arthur J.
DOI:
10.1016/j.bbagen.2013.04.038
发表时间:
2014-02
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Kim G;Weiss SJ;Levine RL
通讯作者:
Levine RL
影响因子:
15
作者:
Tse ECM;Zwang TJ;Barton JK
通讯作者:
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