Walking a tightrope: the complex balancing act of R-loops in genome stability

JR Brickner, JL Garzon, KA Cimprich - Molecular cell, 2022 - cell.com
Although transcription is an essential cellular process, it is paradoxically also a well-
recognized cause of genomic instability. R-loops, non-B DNA structures formed when …

Behind the stoNE wall: A fervent activity for nuclear lipids

K Samardak, J Bâcle, M Moriel-Carretero - Biochimie, 2024 - Elsevier
The four main types of biomolecules are nucleic acids, proteins, carbohydrates and lipids.
The knowledge about their respective interactions is as important as the individual …

[HTML][HTML] A DNA replication fork-centric view of the budding yeast DNA damage response

AW McClure, B Canal, JFX Diffley - Dna Repair, 2022 - Elsevier
The DNA damage response (DDR) checkpoint is activated when DNA is damaged or when
DNA replication forks stall. The DDR checkpoint plays a critical role in preserving the …

A DNA damage–induced phosphorylation circuit enhances Mec1ATR Ddc2ATRIP recruitment to Replication Protein A

LA Yates, EA Tannous, RM Morgan… - Proceedings of the …, 2023 - National Acad Sciences
The cell cycle checkpoint kinase Mec1ATR and its integral partner Ddc2ATRIP are vital for
the DNA damage and replication stress response. Mec1–Ddc2 “senses” single-stranded …

Hydroxyurea and inactivation of checkpoint kinase MEC1 inhibit transcription termination and pre-mRNA cleavage at polyadenylation sites in budding yeast

P Kaur, S Nagar, R Mehta, K Sahadeo, A Vancura - Scientific Reports, 2023 - nature.com
The DNA damage response (DDR) is an evolutionarily conserved process essential for cell
survival. The transcription changes triggered by DDR depend on the nature of DNA damage …

RNase H2 degrades toxic RNA: DNA hybrids behind stalled forks to promote replication restart

J Heuzé, S Kemiha, A Barthe, AT Vilarrubias… - The EMBO …, 2023 - embopress.org
R‐loops represent a major source of replication stress, but the mechanism by which these
structures impede fork progression remains unclear. To address this question, we monitored …

[HTML][HTML] DNA repair Special Issue Cutting Edge Perspectives 2023 Phosphoregulation of the checkpoint kinase Mec1ATR

LA Yates, X Zhang - DNA repair, 2023 - Elsevier
Yeast Mec1, and its mammalian ortholog, Ataxia-Telangiectasia and Rad3-related, are giant
protein kinases central to replication stress and double strand DNA break repair. Mec1 ATR …

[HTML][HTML] On the edge: how nuclear pore complexes rule genome stability

MN Simon, K Dubrana, B Palancade - Current Opinion in Genetics & …, 2024 - Elsevier
Nuclear organization has emerged as a critical layer in the coordination of DNA repair
activities. Distinct types of DNA lesions have notably been shown to relocate at the vicinity of …

Maintaining transcriptional homeostasis during cell cycle

L Ramos-Alonso, P Chymkowitch - Transcription, 2024 - Taylor & Francis
The preservation of gene expression patterns that define cellular identity throughout the cell
division cycle is essential to perpetuate cellular lineages. However, the progression of cells …

[HTML][HTML] Impact of R-loops on oncogene-induced replication stress in cancer cells

J Heuzé, YL Lin, A Lengronne… - Comptes …, 2023 - comptes-rendus.academie-sciences …
Replication stress is an alteration in the progression of replication forks caused by a variety
of events of endogenous or exogenous origin. In precancerous lesions, this stress is …