Topoisomerase II-Induced Chromosome Breakage and Translocation Is Determined by Chromosome Architecture and Transcriptional Activity.
Topoisomerase II-Induced Chromosome Breakage and Translocation Is Determined by Chromosome Architecture and Transcriptional Activity.
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DOI:
10.1016/j.molcel.2019.04.030
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发表时间:
2019-07-25
期刊:
影响因子:
16
通讯作者:
Nussenzweig A
中科院分区:
文献类型:
--
作者:
Canela A;Maman Y;Huang SN;Wutz G;Tang W;Zagnoli-Vieira G;Callen E;Wong N;Day A;Peters JM;Caldecott KW;Pommier Y;Nussenzweig A
Topoisomerase II (TOP2) relieves torsional stress by forming transient cleavage complex intermediates (TOP2ccs) that contain TOP2-linked DNA breaks (DSBs). While TOP2ccs are normally reversible, they can be “trapped” by chemotherapeutic drugs such as etoposide and subsequently converted into irreversible TOP2-linked DSBs. Here, we have quantified etoposide-induced trapping of TOP2ccs, their conversion into irreversible TOP2-linked DSBs, and their processing during DNA repair genome-wide, as a function of time. We find that while TOP2 chromatin localization and trapping is independent of transcription, it requires pre-existing binding of cohesin to DNA. In contrast, the conversion of trapped TOP2ccs to irreversible DSBs during DNA repair is accelerated 2-fold at transcribed loci relative to non-transcribed loci. This conversion is dependent on proteasomal degradation and TDP2 phosphodiesterase activity. Quantitative modeling shows that only two features of pre-existing chromatin structure—namely, cohesin binding and transcriptional activity—can be used to predict the kinetics of TOP2-induced DSBs.
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DOI:
10.1093/bioinformatics/btr064
发表时间:
2011-04-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Grant CE;Bailey TL;Noble WS
通讯作者:
Noble WS
影响因子:
64.5
作者:
Haarhuis JHI;van der Weide RH;Blomen VA;Yáñez-Cuna JO;Amendola M;van Ruiten MS;Krijger PHL;Teunissen H;Medema RH;van Steensel B;Brummelkamp TR;de Wit E;Rowland BD
通讯作者:
Rowland BD
影响因子:
14.9
作者:
Kiianitsa K;Maizels N
通讯作者:
Maizels N
影响因子:
14.8
作者:
Hu J;Meyers RM;Dong J;Panchakshari RA;Alt FW;Frock RL
通讯作者:
Frock RL
影响因子:
4.5
作者:
Gómez-Herreros F;Romero-Granados R;Zeng Z;Alvarez-Quilón A;Quintero C;Ju L;Umans L;Vermeire L;Huylebroeck D;Caldecott KW;Cortés-Ledesma F
通讯作者:
Cortés-Ledesma F