2014
Sumoylation of the Rad1 nuclease promotes DNA repair and regulates its DNA association
SARANGI, Prabha, Zdenka BARTOŠOVÁ, Veronika ALTMANNOVÁ, Cory HOLLAND, Melita CHAVDAROVA et. al.Základní údaje
Originální název
Sumoylation of the Rad1 nuclease promotes DNA repair and regulates its DNA association
Autoři
SARANGI, Prabha (840 Spojené státy), Zdenka BARTOŠOVÁ (703 Slovensko, domácí), Veronika ALTMANNOVÁ (203 Česká republika, domácí), Cory HOLLAND (840 Spojené státy), Melita CHAVDAROVA (807 Severní Makedonie, domácí), Sang Eun LEE (840 Spojené státy), Lumír KREJČÍ (203 Česká republika, garant, domácí) a Xiaolan ZHAO (840 Spojené státy)
Vydání
Nucleic Acids Research, Oxford University Press, 2014, 0305-1048
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 9.112
Kód RIV
RIV/00216224:14110/14:00073652
Organizační jednotka
Lékařská fakulta
UT WoS
000338768100030
Klíčová slova anglicky
NUCLEOTIDE EXCISION-REPAIR; TRANSCRIPTION FACTOR TFIIH; SACCHAROMYCES-CEREVISIAE; IN-VIVO; HOMOLOGOUS RECOMBINATION; BUDDING YEAST; RAD1-RAD10 NUCLEASE; DAMAGE RECOGNITION; SUMO MODIFICATION; STRAND BREAKS
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 9. 9. 2014 17:29, Ing. Mgr. Věra Pospíšilíková
Anotace
V originále
The Saccharomyces cerevisiae Rad1-Rad10 complex is a conserved, structure-specific endonuclease important for repairing multiple types of DNA lesions. Upon recruitment to lesion sites, Rad1-Rad10 removes damaged sequences, enabling subsequent gap filling and ligation. Acting at mid-steps of repair, the association and dissociation of Rad1-Rad10 with DNA can influence repair efficiency. We show that genotoxin-enhanced Rad1 sumoylation occurs after the nuclease is recruited to lesion sites. A single lysine outside Rad1's nuclease and Rad10-binding domains is sumoylated in vivo and in vitro. Mutation of this site to arginine abolishes Rad1 sumoylation and impairs Rad1-mediated repair at high doses of DNA damage, but sustains the repair of a single double-stranded break. The timing of Rad1 sumoylation and the phenotype bias toward high lesion loads point to a post-incision role for sumoylation, possibly affecting Rad1 dissociation from DNA. Indeed, biochemical examination shows that sumoylation of Rad1 decreases the complex's affinity for DNA without affecting other protein properties. These findings suggest a model whereby sumoylation of Rad1 promotes its disengagement from DNA after nuclease cleavage, allowing it to efficiently attend to large numbers of DNA lesions.
Návaznosti
EE2.3.30.0009, projekt VaV |
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GAP207/12/2323, projekt VaV |
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GA13-26629S, projekt VaV |
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