Dynamic Processing of a Common Oxidative DNA Lesion by the First Two Enzymes of the Base Excision Repair Pathway.
Dynamic Processing of a Common Oxidative DNA Lesion by the First Two Enzymes of the Base Excision Repair Pathway.
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DOI:
10.1016/j.jmb.2021.166811
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发表时间:
2021-03-05
影响因子:
5.6
通讯作者:
Suo Z
中科院分区:
文献类型:
--
作者:
Raper AT;Maxwell BA;Suo Z
Base excision repair (BER) is the primary pathway by which eukaryotic cells resolve single base damage. One common example of single base damage is 8-oxo-7,8-dihydro-2′-deoxoguanine (8-oxoG). High incidence and mutagenic potential of 8-oxoG necessitate rapid and efficient DNA repair. How BER enzymes coordinate their activities to resolve 8-oxoG damage while limiting cytotoxic BER intermediates from propagating genomic instability remains unclear. Here we use single-molecule Förster resonance energy transfer (smFRET) and ensemble-level techniques to characterize the activities and interactions of consecutive BER enzymes important for repair of 8-oxoG. In addition to characterizing the damage searching and processing mechanisms of human 8-oxoguanine glycosylase 1 (hOGG1), our data support the existence of a ternary complex between hOGG1, the damaged DNA substrate, and human AP endonuclease 1 (APE1). Our results indicate that hOGG1 is actively displaced from its abasic site containing product by protein-protein interactions with APE1 to ensure timely repair of damaged DNA.
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影响因子:
11.4
作者:
Kubota, Y;Nash, RA;Lindahl, T
通讯作者:
Lindahl, T
影响因子:
16.8
作者:
通讯作者:
--
DOI:
10.1038/nsb902
发表时间:
2003-03-01
期刊:
NATURE STRUCTURAL BIOLOGY
影响因子:
--
作者:
Fromme, JC;Bruner, SD;Verdine, GL
通讯作者:
Verdine, GL
影响因子:
3.8
作者:
Jansen, Jacob G.;Tsaalbi-Shtylik, Anastasia;de Wind, Niels
通讯作者:
de Wind, Niels
影响因子:
5.6
作者:
Brown, Jessica A.;Duym, Wade W.;Suo, Zucai
通讯作者:
Suo, Zucai