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 …

Sensing R-loop-associated DNA damage to safeguard genome stability

C Rinaldi, P Pizzul, MP Longhese… - Frontiers in Cell and …, 2021 - frontiersin.org
DNA transcription and replication are two essential physiological processes that can turn
into a threat for genome integrity when they compete for the same DNA substrate. During …

The SWI/SNF chromatin remodeling complex helps resolve R-loop-mediated transcription–replication conflicts

A Bayona-Feliu, S Barroso, S Muñoz, A Aguilera - Nature genetics, 2021 - nature.com
ATP-dependent chromatin remodelers are commonly mutated in human cancer. Mammalian
SWI/SNF complexes comprise three conserved multisubunit chromatin remodelers (cBAF …

Elongating RNA polymerase II and RNA: DNA hybrids hinder fork progression and gene expression at sites of head-on replication-transcription collisions

L Zardoni, E Nardini, A Brambati, C Lucca… - Nucleic Acids …, 2021 - academic.oup.com
Uncoordinated clashes between replication forks and transcription cause replication stress
and genome instability, which are hallmarks of cancer and neurodegeneration. Here, we …

[HTML][HTML] DDX47, MeCP2, and other functionally heterogeneous factors protect cells from harmful R loops

E Marchena-Cruz, LP Camino, J Bhandari, S Silva… - Cell Reports, 2023 - cell.com
Unscheduled R loops can be a source of genome instability, a hallmark of cancer cells.
Although targeted proteomic approaches and cellular analysis of specific mutants have …

The dark side of RNA: DNA hybrids

A Brambati, L Zardoni, E Nardini, A Pellicioli… - … Research/Reviews in …, 2020 - Elsevier
RNA: DNA hybrids form when nascent transcripts anneal to the DNA template strand or any
homologous DNA region. Co-transcriptional RNA: DNA hybrids, organized in R-loop …

Saccharomyces cerevisiae employs complex regulation strategies to tolerate low pH stress during ethanol production

Y Wu, B Li, B Miao, C Xie, YQ Tang - Microbial Cell Factories, 2022 - Springer
Background Industrial bioethanol production may involve a low pH environment caused by
inorganic acids, improving the tolerance of Saccharomyces cerevisiae to a low pH …

The circular logic of mRNA homeostasis

AR Bryll, CL Peterson - Transcription, 2023 - Taylor & Francis
Eukaryotic cells rely upon dynamic, multifaceted regulation at each step of RNA biogenesis
to maintain mRNA pools and ensure normal protein synthesis. Studies in budding yeast …

R-Loops and its chro-Mates: the strange case of Dr. Jekyll and Mr. Hyde

S Uruci, CSY Lo, D Wheeler, N Taneja - International Journal of …, 2021 - mdpi.com
Since their discovery, R-loops have been associated with both physiological and
pathological functions that are conserved across species. R-loops are a source of replication …

A ride through the epigenetic landscape: aging reversal by reprogramming

LP de Lima Camillo, RBA Quinlan - GeroScience, 2021 - Springer
Aging has become one of the fastest-growing research topics in biology. However, exactly
how the aging process occurs remains unknown. Epigenetics plays a significant role, and …