Journal
DNA REPAIR
Volume 42, Issue -, Pages 11-25Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.dnarep.2016.04.001
Keywords
Homologous recombination; Rad52; Rad59; Srs2; Rad51; SUMOylation
Categories
Funding
- Danish Agency for Science, Technology and Innovation
- Villum Kann Rasmussen Foundation
- Lundbeck Foundation
- European Research Council (ERC)
- Fundacao para a Ciencia e Tecnologia (FCT)
- Czech Science Foundation [GACR 13-26629S, 207/12/2323]
- European Regional Development Fund (Project FNUSA-ICRC) [CZ.1.05/1.1.00/02.0123]
- Employment of Newly Graduated Doctors of Science for Scientific Excellence - European Social Fund [CZ.1.07/2.3.00/30.0009]
- Faculty of Medicine, Masaryk University
- NIH grant [GM080670]
- American Cancer Society [RSG-12-013-01-CCG]
- Leukemia and Lymphoma Society Scholar Award
- Villum Fonden [00011407] Funding Source: researchfish
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Homologous recombination (HR) is essential for maintenance of genome stability through double-strand break (DSB) repair, but at the same time HR can lead to loss of heterozygosity and uncontrolled recombination can be genotoxic. The post-translational modification by SUMO (small ubiquitin-like modifier) has been shown to modulate recombination, but the exact mechanism of this regulation remains unclear. Here we show that SUMOylation stabilizes the interaction between the recombination mediator Rad52 and its paralogue Rad59 in Saccharomyces cerevisiae. Although Rad59 SUMOylation is not required for survival after genotoxic stress, it affects the outcome of recombination to promote conservative DNA repair. In some genetic assays, Rad52 and Rad59 SUMOylation act synergistically. Collectively, our data indicate that the described SUMO modifications affect the balance between conservative and non-conservative mechanisms of HR. (C) 2016 Elsevier B.V. All rights reserved.
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