How RNA transcripts coordinate DNA recombination and repair.
How RNA transcripts coordinate DNA recombination and repair.
复制标题
DOI:
10.1038/s41467-018-03483-7
复制
发表时间:
2018-03-15
影响因子:
16.6
通讯作者:
Pomerantz RT
中科院分区:
文献类型:
--
作者:
McDevitt S;Rusanov T;Kent T;Chandramouly G;Pomerantz RT
Genetic studies in yeast indicate that RNA transcripts facilitate homology-directed DNA repair in a manner that is dependent on RAD52. The molecular basis for so-called RNA−DNA repair, however, remains unknown. Using reconstitution assays, we demonstrate that RAD52 directly cooperates with RNA as a sequence-directed ribonucleoprotein complex to promote two related modes of RNA−DNA repair. In a RNA-bridging mechanism, RAD52 assembles recombinant RNA−DNA hybrids that coordinate synapsis and ligation of homologous DNA breaks. In an RNA-templated mechanism, RAD52-mediated RNA−DNA hybrids enable reverse transcription-dependent RNA-to-DNA sequence transfer at DNA breaks that licenses subsequent DNA recombination. Notably, we show that both mechanisms of RNA−DNA repair are promoted by transcription of a homologous DNA template in trans. In summary, these data elucidate how RNA transcripts cooperate with RAD52 to coordinate homology-directed DNA recombination and repair in the absence of a DNA donor, and demonstrate a direct role for transcription in RNA−DNA repair. Homologous recombination (HR) typically uses DNA as a donor template to accurately repair DNA breaks. Here, the authors elucidate two mechanisms by which RAD52 uses RNA as a template for HR: one involving RNA-mediated synapsis of a homologous DNA break, and the other involving reverse transcriptase dependent RNA-to-DNA sequence transfer at DNA breaks.
登录
查看更多内容
影响因子:
64.8
作者:
Keskin H;Shen Y;Huang F;Patel M;Yang T;Ashley K;Mazin AV;Storici F
通讯作者:
Storici F
影响因子:
4.6
作者:
Ono R;Ishii M;Fujihara Y;Kitazawa M;Usami T;Kaneko-Ishino T;Kanno J;Ikawa M;Ishino F
通讯作者:
Ishino F
影响因子:
--
作者:
Chandramouly G;McDevitt S;Sullivan K;Kent T;Luz A;Glickman JF;Andrake M;Skorski T;Pomerantz RT
通讯作者:
Pomerantz RT
DOI:
10.1016/s0006-291x(02)02353-7
发表时间:
2002-10-11
影响因子:
3.1
作者:
Liu, JM;Meng, XB;Shen, ZY
通讯作者:
Shen, ZY
DOI:
10.1016/j.mrfmmm.2011.03.016
发表时间:
2011-12-01
影响因子:
2.3
作者:
Shen, Ying;Nandi, Pavan;Storici, Francesca
通讯作者:
Storici, Francesca