2021
PLK1 regulates the PrimPol damage tolerance pathway during the cell cycle
BAILEY, Laura J., Rebecca TEAGUE, Peter KOLESÁR, Lewis J. BAINBRIDGE, Howard D. LINDSAY et. al.Základní údaje
Originální název
PLK1 regulates the PrimPol damage tolerance pathway during the cell cycle
Autoři
BAILEY, Laura J., Rebecca TEAGUE, Peter KOLESÁR (703 Slovensko, domácí), Lewis J. BAINBRIDGE, Howard D. LINDSAY a Aidan J. DOHERTY (garant)
Vydání
Science Advances, New York, American Association for the Advancement of Science, 2021, 2375-2548
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10603 Genetics and heredity
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 14.957
Kód RIV
RIV/00216224:14310/21:00123896
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000730595900005
Klíčová slova anglicky
POLO-LIKE KINASE-1; MITOCHONDRIAL-DNA REPLICATION; FORK REVERSAL; POLYMERASE ETA; PHOSPHORYLATION; CATASTROPHE; BYPASS; REPAIR; DOMAIN; ROLES
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 21. 1. 2022 10:31, Mgr. Marie Šípková, DiS.
Anotace
V originále
Replication stress and DNA damage stall replication forks and impede genome synthesis. During S phase, damage tolerance pathways allow lesion bypass to ensure efficient genome duplication. One such pathway is repriming, mediated by Primase-Polymerase (PrimPol) in human cells. However, the mechanisms by which PrimPol is regulated are poorly understood. Here, we demonstrate that PrimPol is phosphorylated by Polo-like kinase 1 (PLK1) at a conserved residue between PrimPol's RPA binding motifs. This phosphorylation is differentially modified throughout the cell cycle, which prevents aberrant recruitment of PrimPol to chromatin. Phosphorylation can also be delayed and reversed in response to replication stress. The absence of PLK1-dependent regulation of PrimPol induces phenotypes including chromosome breaks, micronuclei, and decreased survival after treatment with camptothecin, olaparib, and UV-C. Together, these findings establish that deregulated repriming leads to genomic instability, highlighting the importance of regulating this damage tolerance pathway following fork stalling and throughout the cell cycle.
Návaznosti
LM2018127, projekt VaV |
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