Mechanisms of DNA damage, repair, and mutagenesis

N Chatterjee, GC Walker - Environmental and molecular …, 2017 - Wiley Online Library
Living organisms are continuously exposed to a myriad of DNA damaging agents that can
impact health and modulate disease‐states. However, robust DNA repair and damage …

Repeat instability during DNA repair: Insights from model systems

K Usdin, NCM House… - Critical reviews in …, 2015 - Taylor & Francis
The expansion of repeated sequences is the cause of over 30 inherited genetic diseases,
including Huntington disease, myotonic dystrophy (types 1 and 2), fragile X syndrome, many …

Transient RNA-DNA hybrids are required for efficient double-strand break repair

C Ohle, R Tesorero, G Schermann, N Dobrev, I Sinning… - Cell, 2016 - cell.com
RNA-DNA hybrids are a major internal cause of DNA damage within cells, and their
degradation by RNase H enzymes is important for maintaining genomic stability. Here, we …

Reduced mutation rate in exons due to differential mismatch repair

J Frigola, R Sabarinathan, L Mularoni, F Muiños… - Nature …, 2017 - nature.com
While recent studies have identified higher than anticipated heterogeneity of mutation rate
across genomic regions, mutations in exons and introns are assumed to be generated at the …

Structural and functional specificity of H3K36 methylation

UTF Lam, BKY Tan, JJX Poh, ES Chen - Epigenetics & Chromatin, 2022 - Springer
The methylation of histone H3 at lysine 36 (H3K36me) is essential for maintaining genomic
stability. Indeed, this methylation mark is essential for proper transcription, recombination …

[HTML][HTML] Redox regulation of genome stability by effects on gene expression, epigenetic pathways and DNA damage/repair

Y Mikhed, A Görlach, UG Knaus, A Daiber - Redox biology, 2015 - Elsevier
Reactive oxygen and nitrogen species (eg H 2 O 2, nitric oxide) confer redox regulation of
essential cellular signaling pathways such as cell differentiation, proliferation, migration and …

Chromatin dynamics after DNA damage: the legacy of the access–repair–restore model

SE Polo, G Almouzni - DNA repair, 2015 - Elsevier
Eukaryotic genomes are packaged into chromatin, which is the physiological substrate for all
DNA transactions, including DNA damage and repair. Chromatin organization imposes …

[HTML][HTML] Post-translational modifications of PCNA in control of DNA synthesis and DNA damage tolerance-the implications in carcinogenesis

S Zhang, T Zhou, Z Wang, F Yi, C Li… - … Journal of Biological …, 2021 - ncbi.nlm.nih.gov
The faithful DNA replication is a critical event for cell survival and inheritance. However,
exogenous or endogenous sources of damage challenge the accurate synthesis of DNA …

MRX increases chromatin accessibility at stalled replication forks to promote nascent DNA resection and cohesin loading

A Delamarre, A Barthe, C de la Roche Saint-André… - Molecular cell, 2020 - cell.com
The recovery of stalled replication forks depends on the controlled resection of nascent DNA
and on the loading of cohesin. These processes operate in the context of nascent chromatin …

Regulation of nuclear mechanics and the impact on DNA damage

Á Dos Santos, CP Toseland - International Journal of Molecular Sciences, 2021 - mdpi.com
In eukaryotic cells, the nucleus houses the genomic material of the cell. The physical
properties of the nucleus and its ability to sense external mechanical cues are tightly linked …