ALTMANNOVÁ, Veronika, Nadine ECKERT-BOULET, Milica ARNERIC, Peter KOLESÁR, Radka CHALOUPKOVÁ, Jiří DAMBORSKÝ, Patrick SUNG, Xiaolan ZHAO, Michael LISBY and Lumír KREJČÍ. Rad52 SUMOylation affects the efficiency of the DNA repair. Nucleic Acids Research. Oxford University Press, 2010, vol. 38, No 6, 9 pp. ISSN 0305-1048.
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Basic information
Original name Rad52 SUMOylation affects the efficiency of the DNA repair
Name in Czech SUMOylace Rad52 ovlivňuje opravu DNA
Authors ALTMANNOVÁ, Veronika (203 Czech Republic, belonging to the institution), Nadine ECKERT-BOULET (208 Denmark), Milica ARNERIC (840 United States of America), Peter KOLESÁR (203 Czech Republic, belonging to the institution), Radka CHALOUPKOVÁ (203 Czech Republic, belonging to the institution), Jiří DAMBORSKÝ (203 Czech Republic, belonging to the institution), Patrick SUNG (840 United States of America), Xiaolan ZHAO (840 United States of America), Michael LISBY (208 Denmark) and Lumír KREJČÍ (203 Czech Republic, guarantor, belonging to the institution).
Edition Nucleic Acids Research, Oxford University Press, 2010, 0305-1048.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 7.836
RIV identification code RIV/00216224:14310/10:00043447
Organization unit Faculty of Science
UT WoS 000280922400022
Keywords in English DNA repair; DNA damage; replication; genomic instability
Tags International impact, Reviewed
Changed by Changed by: doc. Mgr. Lumír Krejčí, Ph.D., učo 18098. Changed: 6/1/2011 09:15.
Abstract
Homologous recombination (HR) plays a vital role in DNA metabolic processes including meiosis, DNA repair, DNA replication, and rDNA homeostasis. HR defects can lead to pathological outcomes, including genetic diseases and cancer. Recent studies suggest that the post-translational modification by the small ubiquitin-like modifier (SUMO) protein plays an important role in mitotic and meiotic recombination. However, the precise role of SUMOylation during recombination is still unclear. Here, we characterize the effect of SUMOylation on the biochemical properties of the Saccharomyces cerevisiae recombination mediator protein Rad52. Interestingly, Rad52 SUMOylation is enhanced by ssDNA, and we show that SUMOylation of Rad52 also inhibits its DNA binding and annealing activities. The biochemical effects of SUMO modification in vitro are accompanied by a shorter duration of spontaneous Rad52 foci in vivo and a shift in spontaneous mitotic recombination from single-strand annealing to gene conversion events in the SUMO-deficient Rad52 mutants. Taken together, our results highlight the importance of Rad52 SUMOylation as part of a quality control mechanism regulating the efficiency of recombination and DNA repair.
Abstract (in Czech)
Homologní rekombinace (HR) hraje klíčovou úlohu v metabolsmu DNA, zahrnující meiósu, DNA opravu, DNA replikaci a rovnováhu rDNA. Defekty v HR vedou k patologickým výstupúm jako jsou geneticky podmíněná onemocnění a rakovina. Nedavné výsledky naznačují, že post-translační modifikace SUMOproteinem hraje důležitou roli během mitotické a meiotické rekombinaci. Nicméně přesná úloha SUMOylace během rekombinace neni doposud objasněna. Charakterizovali jsme efekt SUMOylaca na biochemické vlastnosti proteinu Rad52.
Links
GA301/09/1917, research and development projectName: Štěpení replikačních-rekombinačních DNA meziproduktů a jejich úloha při nestabilitě genomu
Investor: Czech Science Foundation
GD203/09/H046, research and development projectName: Biochemie na rozcestí mezi in silico a in vitro
Investor: Czech Science Foundation
LC06030, research and development projectName: Biomolekulární centrum
Investor: Ministry of Education, Youth and Sports of the CR, Biomolecular centre
ME10048, research and development projectName: Vliv post-translačních modifikací na DNA opravu a rekombinaci.
Investor: Ministry of Education, Youth and Sports of the CR, Research and Development Programme KONTAKT (ME)
MSM0021622413, plan (intention)Name: Proteiny v metabolismu a při interakci organismů s prostředím
Investor: Ministry of Education, Youth and Sports of the CR, Proteins in metabolism and interaction of organisms with the environment
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