RNase H enables efficient repair of R-loop induced DNA damage. [PDF]
, 2016 R-loops, three-stranded structures that form when transcripts hybridize to chromosomal DNA, are potent agents of genome instability. This instability has been explained by the ability of R-loops to induce DNA damage. Here, we show that persistent R-loops
Amon, Jeremy D, Koshland, Douglas
core +1 more source
Frontiers in Oncology, 2023 BackgroundXeroderma pigmentosum (XP), a rare disease with defects in DNA repair genes, has >1,000-fold increased risk of ultraviolet-induced skin cancers.
Elvelyn R. Fernandez +7 more
doaj +1 more source
High-resolution mapping of heteroduplex DNA formed during UV-induced and spontaneous mitotic recombination events in yeast. [PDF]
, 2017 In yeast, DNA breaks are usually repaired by homologous recombination (HR). An early step for HR pathways is formation of a heteroduplex, in which a single-strand from the broken DNA molecule pairs with a strand derived from an intact DNA molecule.
Dominska, Margaret +3 more
core +3 more sources
The Ability of Cyanobacterial Cells to Restore UV-B Radiation Induced Damage to Photosystem II is Influenced by Photolyase Dependent DNA Repair [PDF]
, 2013 Damage of DNA and Photosystem-II are among the most significant effects of UV-B irradiation in photosynthetic organisms. Both damaged DNA and Photosystem-II can be repaired, which represent important defense mechanisms against detrimental UV-B effects ...
Kós, Péter +4 more
core +1 more source
Molecular Determinant of DIDS Analogs Targeting RAD51 Activity
Molecules, 2021 RAD51 is the central protein in DNA repair by homologous recombination (HR), involved in several steps of this process. It is shown that overexpression of the RAD51 protein is correlated with increased survival of cancer cells to cancer treatments.
Denis Velic +6 more
doaj +1 more source
Tyrosine dephosphorylation of H2AX modulates apoptosis and survival decisions. [PDF]
, 2009 Life and death fate decisions allow cells to avoid massive apoptotic death in response to genotoxic stress. Although the regulatory mechanisms and signalling pathways controlling DNA repair and apoptosis are well characterized, the precise molecular ...
Cook, Peter J +5 more
core +2 more sources
The RecQ DNA Helicases in DNA Repair [PDF]
Annual Review of Genetics, 2010 The RecQ helicases are conserved from bacteria to humans and play a critical role in genome stability. In humans, loss of RecQ gene function is associated with cancer predisposition and/or premature aging. Recent experiments have shown that the RecQ helicases function during distinct steps during DNA repair; DNA end resection, displacement-loop (D-loop)
Bernstein, Kara +2 more
openaire +3 more sources
Three DNA polymerases, recruited by different mechanisms, carry out NER repair synthesis in human cells [PDF]
, 2010 Nucleotide excision repair (NER) is the most versatile DNA repair system that deals with the major UV photoproducts in DNA, as well as many other DNA adducts.
Cloney, Ross +13 more
core +3 more sources
RanBP2-Mediated SUMOylation Promotes Human DNA Polymerase Lambda Nuclear Localization and DNA Repair [PDF]
, 2020 Cellular DNA is under constant attack by a wide variety of agents, both endogenous and exogenous. To counteract DNA damage, human cells have a large collection of DNA repair factors. Among them, DNA polymerase lambda (Polλ) stands out for its versatility,
Cortés Ledesma, Felipe +4 more
core +1 more source