J 2010

Rad52 SUMOylation affects the efficiency of the DNA repair

ALTMANNOVÁ, Veronika, Nadine ECKERT-BOULET, Milica ARNERIC, Peter KOLESÁR, Radka CHALOUPKOVÁ et. al.

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

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

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
Změněno: 6/1/2011 09:15, doc. Mgr. Lumír Krejčí, Ph.D.

Abstract

V originále

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.

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 project
Name: Štěpení replikačních-rekombinačních DNA meziproduktů a jejich úloha při nestabilitě genomu
Investor: Czech Science Foundation
GD203/09/H046, research and development project
Name: Biochemie na rozcestí mezi in silico a in vitro
Investor: Czech Science Foundation
LC06030, research and development project
Name: Biomolekulární centrum
Investor: Ministry of Education, Youth and Sports of the CR, Biomolecular centre
ME10048, research and development project
Name: 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