Results 31 to 40 of about 965,220 (340)

Tyrosine dephosphorylation of H2AX modulates apoptosis and survival decisions. [PDF]

open access: yes, 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

Three DNA polymerases, recruited by different mechanisms, carry out NER repair synthesis in human cells [PDF]

open access: yes, 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

Human Holliday junction resolvase GEN1 uses a chromodomain for efficient DNA recognition and cleavage

open access: yeseLife, 2015
Holliday junctions (HJs) are key DNA intermediates in homologous recombination. They link homologous DNA strands and have to be faithfully removed for proper DNA segregation and genome integrity.
Shun-Hsiao Lee   +5 more
doaj   +1 more source

High-resolution mapping of heteroduplex DNA formed during UV-induced and spontaneous mitotic recombination events in yeast. [PDF]

open access: yes, 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

Compensatory metabolic networks in pancreatic cancers upon perturbation of glutamine metabolism

open access: yesNature Communications, 2017
Glutaminase inhibition (GLSi) has promising activity against certain cancers. Here, the authors show that GLSi has no effect on multiple mouse models of pancreatic cancer and characterize the metabolic pathways activated in response to GLSi whose ...
Douglas E. Biancur   +12 more
doaj   +1 more source

Oncogenic KRAS supports pancreatic cancer through regulation of nucleotide synthesis

open access: yesNature Communications, 2018
Pancreatic ductal adenocarcinoma (PDAC) cells display varying degrees of reliance on oncogenic KRAS. Here the authors show that KRAS-resistant PDAC cells maintain nucleotides synthesis through a KRAS-independent upregulation of the non-oxidative pentose ...
Naiara Santana-Codina   +10 more
doaj   +1 more source

Putative Role of the Futile Repair Initiated by Human Thymine-DNA Glycosylase in Formation of Programmed Strand Breaks in Neuronal Enhancers [PDF]

open access: yesBIO Web of Conferences
Enhancers are regulatory DNA elements that play a crucial role in controlling gene expression in specific cell types, including neurons. Enhancer activity is tightly regulated and involves the recruitment of various proteins and enzymes to facilitate the
Manapkyzy Diana   +2 more
doaj   +1 more source

lncRNA Sequencing Reveals Neurodegeneration-Associated FUS Mutations Alter Transcriptional Landscape of iPS Cells That Persists in Motor Neurons

open access: yesCells, 2023
Fused-in sarcoma (FUS) gene mutations have been implicated in amyotrophic lateral sclerosis (ALS). This study aimed to investigate the impact of FUS mutations (R521H and P525L) on the transcriptome of induced pluripotent stem cells (iPSCs) and iPSC ...
Vincent E. Provasek   +7 more
doaj   +1 more source

The Ability of Cyanobacterial Cells to Restore UV-B Radiation Induced Damage to Photosystem II is Influenced by Photolyase Dependent DNA Repair [PDF]

open access: yes, 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

DNA glycosylases: in DNA repair and beyond [PDF]

open access: yesChromosoma, 2011
The base excision repair machinery protects DNA in cells from the damaging effects of oxidation, alkylation, and deamination; it is specialized to fix single-base damage in the form of small chemical modifications. Base modifications can be mutagenic and/or cytotoxic, depending on how they interfere with the template function of the DNA during ...
Jacobs, A. L., Schar, P.
openaire   +7 more sources

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