Results 1 to 10 of about 1,052,021 (239)

Single Cell Analysis of Human RAD18-Dependent DNA Post-Replication Repair by Alkaline Bromodeoxyuridine Comet Assay [PDF]

open access: yes, 2013
Damage to DNA can block replication progression resulting in gaps in the newly synthesized DNA. Cells utilize a number of post-replication repair (PRR) mechanisms such as the RAD18 controlled translesion synthesis or template switching to overcome the ...
Downes, C. Stephen   +4 more
core   +10 more sources

MTBP phosphorylation controls DNA replication origin firing

open access: yesScientific Reports, 2021
Faithful genome duplication requires regulation of origin firing to determine loci, timing and efficiency of replisome generation. Established kinase targets for eukaryotic origin firing regulation are the Mcm2-7 helicase, Sld3/Treslin/TICRR and Sld2 ...
Pedro Ferreira   +12 more
doaj   +1 more source

The structural basis of Cdc7-Dbf4 kinase dependent targeting and phosphorylation of the MCM2-7 double hexamer

open access: yesNature Communications, 2022
Here the authors describe multiple structures of the replicative helicase MCM2-7 in complex with Dbf4-dependent kinase (DDK). These structures reveal why the kinase specifically recognizes the MCM2-7 double-hexamer over the single-hexamer and explain how
Almutasem Saleh   +9 more
doaj   +1 more source

The Contribution of Lysosomes to DNA Replication

open access: yesCells, 2021
Lysosomes, acidic, membrane-bound organelles, are not only the core of the cellular recycling machinery, but they also serve as signaling hubs regulating various metabolic pathways. Lysosomes maintain energy homeostasis and provide pivotal substrates for
Joanna Maria Merchut-Maya   +1 more
doaj   +1 more source

Adenovirus DNA Replication [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2013
Adenoviruses have attracted much attention as probes to study biological processes such as DNA replication, transcription, splicing, and cellular transformation. More recently these viruses have been used as gene-transfer vectors and oncolytic agents.
Hoeben, R.C., Uil, T.G.
openaire   +3 more sources

DNA Replication Fidelity [PDF]

open access: yesAnnual Review of Biochemistry, 2000
▪ Abstract  DNA replication fidelity is a key determinant of genome stability and is central to the evolution of species and to the origins of human diseases. Here we review our current understanding of replication fidelity, with emphasis on structural and biochemical studies of DNA polymerases that provide new insights into the importance of hydrogen
T A, Kunkel, K, Bebenek
openaire   +2 more sources

Cryo-EM structures reveal that RFC recognizes both the 3′- and 5′-DNA ends to load PCNA onto gaps for DNA repair

open access: yeseLife, 2022
RFC uses ATP to assemble PCNA onto primed sites for replicative DNA polymerases δ and ε. The RFC pentamer forms a central chamber that binds 3′ ss/ds DNA junctions to load PCNA onto DNA during replication.
Fengwei Zheng   +4 more
doaj   +1 more source

The structure of ORC–Cdc6 on an origin DNA reveals the mechanism of ORC activation by the replication initiator Cdc6

open access: yesNature Communications, 2021
Eukaryotic DNA replication is mediated by many proteins which are tightly regulated for an efficient firing of replication at each cell cycle. Here the authors report a cryo-EM structure of the yeast ORC–Cdc6 bound to an 85-bp ARS1 origin DNA revealing ...
Xiang Feng   +5 more
doaj   +1 more source

Unscheduled DNA replication in G1 causes genome instability and damage signatures indicative of replication collisions

open access: yesNature Communications, 2022
Reusswig et al. use engineered systems to force DNA replication in the G1 phase of the cell cycle. This unscheduled G1 replication shows hallmarks of S phase replication, but leads to over-replication and DNA breaks from replication collisions.
Karl-Uwe Reusswig   +7 more
doaj   +1 more source

Structures of 9-1-1 DNA checkpoint clamp loading at gaps from start to finish and ramification on biology

open access: yesCell Reports, 2023
Summary: Rad24-RFC (replication factor C) loads the 9-1-1 checkpoint clamp onto the recessed 5′ ends by binding a 5′ DNA at an external surface site and threading the 3′ single-stranded DNA (ssDNA) into 9-1-1. We find here that Rad24-RFC loads 9-1-1 onto
Fengwei Zheng   +4 more
doaj   +1 more source

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