Looping out of control: R-loops in transcription-replication conflict

C Kumar, D Remus - Chromosoma, 2024 - Springer
Transcription-replication conflict is a major cause of replication stress that arises when
replication forks collide with the transcription machinery. Replication fork stalling at sites of …

An updated perspective on the polymerase division of labor during eukaryotic DNA replication

TA Guilliam, JTP Yeeles - Critical reviews in biochemistry and …, 2020 - Taylor & Francis
In eukaryotes three DNA polymerases (Pols), α, δ, and ε, are tasked with bulk DNA synthesis
of nascent strands during genome duplication. Most evidence supports a model where Pol α …

The interplay of RNA: DNA hybrid structure and G-quadruplexes determines the outcome of R-loop-replisome collisions

C Kumar, S Batra, JD Griffith, D Remus - Elife, 2021 - elifesciences.org
R-loops are a major source of genome instability associated with transcription-induced
replication stress. However, how R-loops inherently impact replication fork progression is …

Synergism between CMG helicase and leading strand DNA polymerase at replication fork

Z Xu, J Feng, D Yu, Y Huo, X Ma, WH Lam, Z Liu… - Nature …, 2023 - nature.com
The replisome that replicates the eukaryotic genome consists of at least three engines: the
Cdc45-MCM-GINS (CMG) helicase that separates duplex DNA at the replication fork and …

The fork protection complex recruits FACT to reorganize nucleosomes during replication

B Safaric, E Chacin, MJ Scherr, L Rajappa… - Nucleic acids …, 2022 - academic.oup.com
Chromosome replication depends on efficient removal of nucleosomes by accessory factors
to ensure rapid access to genomic information. Here, we show this process requires …

Revisiting the BRCA-pathway through the lens of replication gap suppression:“Gaps determine therapy response in BRCA mutant cancer”

SB Cantor - DNA repair, 2021 - Elsevier
The toxic lesion emanating from chemotherapy that targets the DNA was initially debated,
but eventually the DNA double strand break (DSB) ultimately prevailed. The reasoning was …

Rad53 checkpoint kinase regulation of DNA replication fork rate via Mrc1 phosphorylation

AW McClure, JFX Diffley - Elife, 2021 - elifesciences.org
The Rad53 DNA checkpoint protein kinase plays multiple roles in the budding yeast cell
response to DNA replication stress. Key amongst these is its enigmatic role in safeguarding …

The TIMELESS effort for timely DNA replication and protection

JA Patel, H Kim - Cellular and Molecular Life Sciences, 2023 - Springer
Accurate replication of the genome is fundamental to cellular survival and tumor prevention.
The DNA replication fork is vulnerable to DNA lesions and damages that impair replisome …

Changes in the architecture and abundance of replication intermediates delineate the chronology of DNA damage tolerance pathways at UV-stalled replication forks …

Y Benureau, C Pouvelle, P Dupaigne… - Nucleic Acids …, 2022 - academic.oup.com
DNA lesions in S phase threaten genome stability. The DNA damage tolerance (DDT)
pathways overcome these obstacles and allow completion of DNA synthesis by the use of …

Toxic R-loops: Cause or consequence of replication stress?

S Kemiha, J Poli, YL Lin, A Lengronne, P Pasero - DNA repair, 2021 - Elsevier
Transcription-replication conflicts (TRCs) represent a potential source of endogenous
replication stress (RS) and genomic instability in eukaryotic cells but the mechanisms that …