Buscar
Mostrando ítems 1-10 de 20
Artículo
Histone H3E73Q and H4E53A mutations cause recombinogenic DNA damage
(Shared Science Publishers OG, 2020)
The stability and function of eukaryotic genomes is closely linked to histones and to chromatin structure. The state of the chromatin not only affects the probability of DNA to undergo damage but also DNA repair. DNA damage ...
Artículo
The DNA damage response acts as a safeguardagainst harmful DNA–RNA hybrids ofdifferent origins
(EMBO Press, 2019-07-24)
Despite playing physiological roles in specific situations, DNA–RNA hybrids threat genome integrity. To investigate how cells do counteract spontaneous DNA–RNA hybrids, here we screen an siRNA library covering 240 human ...
Artículo
Break-induced RNA–DNA hybrids (BIRDHs) in homologous recombination: friend or foe?
(Wiley-Blackwell, 2023)
Double-strand breaks (DSBs) are the most harmful DNA lesions, with a strong impact on cell proliferation and genome integrity. Depending on cell cycle stage, DSBs are preferentially repaired by non-homologous end joining ...
Artículo
The need to regulate replication fork speed
(American Association for the Advancement of Science, 2017)
Artículo
Transcription-mediated replication hindrance: a major driver of genome instability
(Cold Spring Harbor Laboratory Press, 2019)
Genome replication involves dealing with obstacles that can result from DNA damage but also from chromatin alterations, topological stress, tightly bound proteins or non-B DNA structures such as R loops. Experimental ...
Artículo
A CDK-regulated chromatin segregase promoting chromosome replication
(Springer Nature, 2021)
The replication of chromosomes during S phase is critical for cellular and organismal function. Replicative stress can result in genome instability, which is a major driver of cancer. Yet how chromatin is made accessible ...
Artículo
DNA-RNA hybrids: The risks of DNA breakage during transcription
(Springer Nature, 2017)
Although R loops can occur at different genomic locations, the factors that determine their formation and frequency remain unclear. Emerging evidence indicates that DNA breaks stimulate DNA-RNA hybrid formation. Here, we ...
Artículo
Histone deacetylases facilitate the accurate repair of broken forks
(Taylor & Francis, 2020)
We have recently uncovered that loss of the yeast histone deacetylases Rpd3 (Reduced Potassium Dependency 3) and Hda1 (Histone DeAcetylase 3) affects the cohesion between sister chromatids thus impairing repair of DNA ...
Artículo
Harmful DNA:RNA hybrids are formed in cis and in a Rad51-independent manner
(eLife Sciences Publications, 2020)
DNA:RNA hybrids constitute a well-known source of recombinogenic DNA damage. The current literature is in agreement with DNA:RNA hybrids being produced co-transcriptionally by the invasion of the nascent RNA molecule ...
Artículo
Spontaneous DNA-RNA hybrids: differential impacts throughout the cell cycle
(Taylor & Francis, 2020)
A large body of research supports that transcription plays a major role among the many sources of replicative stress contributing to genome instability. It is therefore not surprising that the DNA damage response has a ...