The Role of Replication-Associated Repair Factors on R-Loops.
The Role of Replication-Associated Repair Factors on R-Loops.
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DOI:
10.3390/genes8070171
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发表时间:
2017-06-27
期刊:
影响因子:
3.5
通讯作者:
Gómez-González B
中科院分区:
文献类型:
--
作者:
Bhatia V;Herrera-Moyano E;Aguilera A;Gómez-González B
The nascent RNA can reinvade the DNA double helix to form a structure termed the R-loop, where a single-stranded DNA (ssDNA) is accompanied by a DNA-RNA hybrid. Unresolved R-loops can impede transcription and replication processes and lead to genomic instability by a mechanism still not fully understood. In this sense, a connection between R-loops and certain chromatin markers has been reported that might play a key role in R-loop homeostasis and genome instability. To counteract the potential harmful effect of R-loops, different conserved messenger ribonucleoprotein (mRNP) biogenesis and nuclear export factors prevent R-loop formation, while ubiquitously-expressed specific ribonucleases and DNA-RNA helicases resolve DNA-RNA hybrids. However, the molecular events associated with R-loop sensing and processing are not yet known. Given that R-loops hinder replication progression, it is plausible that some DNA replication-associated factors contribute to dissolve R-loops or prevent R-loop mediated genome instability. In support of this, R-loops accumulate in cells depleted of the BRCA1, BRCA2 or the Fanconi anemia (FA) DNA repair factors, indicating that they play an active role in R-loop dissolution. In light of these results, we review our current view of the role of replication-associated DNA repair pathways in preventing the harmful consequences of R-loops.
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影响因子:
64.8
作者:
Ray Chaudhuri A;Callen E;Ding X;Gogola E;Duarte AA;Lee JE;Wong N;Lafarga V;Calvo JA;Panzarino NJ;John S;Day A;Crespo AV;Shen B;Starnes LM;de Ruiter JR;Daniel JA;Konstantinopoulos PA;Cortez D;Cantor SB;Fernandez-Capetillo O;Ge K;Jonkers J;Rottenberg S;Sharan SK;Nussenzweig A
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Nussenzweig A
影响因子:
3.5
作者:
Chang EY;Stirling PC
通讯作者:
Stirling PC
DOI:
10.1016/j.tig.2016.10.002
发表时间:
2016-12
期刊:
Trends in genetics : TIG
影响因子:
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作者:
Chédin F
通讯作者:
Chédin F
影响因子:
16.8
作者:
Chen PB;Chen HV;Acharya D;Rando OJ;Fazzio TG
通讯作者:
Fazzio TG
影响因子:
56.9
作者:
Daniels, MJ;Wang, YM;Venkitaraman, AR
通讯作者:
Venkitaraman, AR