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Mostrando ítems 1-10 de 23
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
Genome-wide analysis of factors affecting transcription elongation and DNA repair: a new role for PAF and Ccr4-not in transcription-coupled repair
(Public Library of Science, 2009)
RNA polymerases frequently deal with a number of obstacles during transcription elongation that need to be removed for transcription resumption. One important type of hindrance consists of DNA lesions, which are removed ...
Artículo
Molecular evidence that the eukaryotic THO/TREX complex is required for efficient transcription elongation
(American Society for Biochemistry and Molecular Biology Inc., 2003)
THO/TREX is a conserved eukaryotic complex formed by the core THO complex plus proteins involved in mRNA metabolism and export such as Sub2 and Yra1. Mutations in any of the THO/TREX structural genes cause pleiotropic ...
Artículo
A genome-wide function of THSC/TREX-2 at active genes prevents transcription–replication collisions
(Oxford University Press, 2014)
The THSC/TREX-2 complex of Saccharomyces cerevisiae mediates the anchoring of transcribed genes to the nuclear pore, linking transcription elongation with mRNA export and genome stability, as shown for specific reporters. ...
Artículo
The Fanconi Anemia Pathway Protects Genome Integrity from R-loops
(Public Library of Science, 2015)
Co-transcriptional RNA-DNA hybrids (R loops) cause genome instability. To prevent harmful R loop accumulation, cells have evolved specific eukaryotic factors, one being the BRCA2 double-strand break repair protein. As BRCA2 ...
Artículo
C. elegans THSC/TREX-2 deficiency causes replication stress and genome instability
(The Company of Biologists, 2021)
Transcription is an essential process of DNA metabolism, yet it makes DNA more susceptible to DNA damage. THSC/TREX-2 is a conserved eukaryotic protein complex with a key role in mRNP biogenesis and maturation that prevents ...
Artículo
An hpr1 point mutation that impairs transcription and mRNP biogenesis without increasing recombination
(American Society for Microbiology, 2006)
THO/TREX, a conserved eukaryotic protein complex, is a key player at the interface between transcription and mRNP metabolism. The lack of a functional THO complex impairs transcription, leads to transcriptiondependent ...
Artículo
The stress-activated protein kinase Hog1 mediates S phase delay in response to osmostress
(American Society for Cell Biology, 2009)
Control of cell cycle progression by stress-activated protein kinases (SAPKs) is essential for cell adaptation to extracellular stimuli. Exposure of yeast to osmostress activates the Hog1 SAPK, which modulates cell cycle ...
Artículo
The yeast and human FACT chromatin-reorganizing complexes resolve R-loop-mediated transcription-replication conflicts
(Cold Spring Harbor Laboratory Press, 2014)
FACT (facilitates chromatin transcription) is a chromatin-reorganizing complex that swaps nucleosomes around the RNA polymerase during transcription elongation and has a role in replication that is not fully understood ...
Artículo
DDX47, MeCP2, and other functionally heterogeneous factors protect cells from harmful R loops
(Elsevier, 2023)
Unscheduled R loops can be a source of genome instability, a hallmark of cancer cells. Although targeted proteomic approaches and cellular analysis of specific mutants have uncovered factors potentially involved in R-loop ...