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 …

R-loops as Janus-faced modulators of DNA repair

A Marnef, G Legube - Nature cell biology, 2021 - nature.com
R-loops are non-B DNA structures with intriguing dual consequences for gene expression
and genome stability. In addition to their recognized roles in triggering DNA double-strand …

Exportin 4 depletion leads to nuclear accumulation of a subset of circular RNAs

L Chen, Y Wang, J Lin, Z Song, Q Wang… - Nature …, 2022 - nature.com
Numerous RNAs are exported from the nucleus, abnormalities of which lead to cellular
complications and diseases. How thousands of circular RNAs (circRNAs) are exported from …

Impact of spliceosome mutations on RNA splicing in myelodysplasia: dysregulated genes/pathways and clinical associations

A Pellagatti, RN Armstrong, V Steeples… - Blood, The Journal …, 2018 - ashpublications.org
Abstract SF3B1, SRSF2, and U2AF1 are the most frequently mutated splicing factor genes in
the myelodysplastic syndromes (MDS). We have performed a comprehensive and …

RNA biogenesis and RNA metabolism factors as R-loop suppressors: a hidden role in genome integrity

R Luna, B Gómez-González… - Genes & …, 2024 - genesdev.cshlp.org
Genome integrity relies on the accuracy of DNA metabolism, but as appreciated for more
than four decades, transcription enhances mutation and recombination frequencies. More …

A R-loop sensing pathway mediates the relocation of transcribed genes to nuclear pore complexes

A Penzo, M Dubarry, C Brocas, M Zheng… - Nature …, 2023 - nature.com
Nuclear pore complexes (NPCs) have increasingly recognized interactions with the
genome, as exemplified in yeast, where they bind transcribed or damaged chromatin. By …

GBPL3 localizes to the nuclear pore complex and functionally connects the nuclear basket with the nucleoskeleton in plants

Y Tang, MI Ho, BH Kang, Y Gu - PLoS biology, 2022 - journals.plos.org
The nuclear basket (NB) is an essential structure of the nuclear pore complex (NPC) and
serves as a dynamic and multifunctional platform that participates in various critical nuclear …

Efficient pre-mRNA cleavage prevents replication-stress-associated genome instability

F Teloni, J Michelena, A Lezaja, S Kilic, C Ambrosi… - Molecular cell, 2019 - cell.com
Cellular mechanisms that safeguard genome integrity are often subverted in cancer. To
identify cancer-related genome caretakers, we employed a convergent multi-screening …

DNA-RNA hybrids at DSBs interfere with repair by homologous recombination

P Ortega, JA Mérida-Cerro, AG Rondón… - Elife, 2021 - elifesciences.org
DNA double-strand breaks (DSBs) are the most harmful DNA lesions and their repair is
crucial for cell viability and genome integrity. The readout of DSB repair may depend on …

Yra1-bound RNA–DNA hybrids cause orientation-independent transcription–replication collisions and telomere instability

M García-Rubio, P Aguilera… - Genes & …, 2018 - genesdev.cshlp.org
R loops are an important source of genome instability, largely due to their negative impact
on replication progression. Yra1/ALY is an abundant RNA-binding factor conserved from …