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Mostrando ítems 1-10 de 22
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 ...
Tesis Doctoral
Control metabólico de la sensibilidad a TRAIL en células epiteliales de mama : papel de AMPK
(2009)
La apoptosis es el mecanismo por el cual las células son eliminadas del organismo tras una serie de procesos bioquímicos controlados, en ausencia de procesos inflamatorios que dañen a los tejidos circundantes. El ligando ...
Artículo
The S-phase checkpoint is required to respond to R-loops accumulated in THO mutants
(American Society for Microbiology, 2009)
Cotranscriptional R-loops are formed in yeast mutants of the THO complex, which functions at the interface between transcription and mRNA export. Despite the relevance of R-loops in transcription-associated recombination, the ...
Artículo
Roles of the outer membrane protein asmA of Salmonella enterica in the control of marRAB expression and invasion of epithelial cells
(American Society for Microbiology, 2009)
A genetic screen for suppressors of bile sensitivity in DNA adenine methylase (dam) mutants of Salmonella enterica serovar Typhimurium yielded insertions in an uncharacterized locus homologous to the Escherichia coli asmA ...
Artículo
Phycomyces MADB interacts with MADA to form the primary photoreceptor complex for fungal phototropism
(National Academy of Sciences, 2009)
The fungus Phycomyces blakesleeanus reacts to environmental signals, including light, gravity, touch, and the presence of nearby objects, by changing the speed and direction of growth of its fruiting body (sporangiophore). ...
Artículo
Regulation of igaA and the rcs system by the mvia response regulator in salmonella enterica
(American Society for Microbiology, 2009)
IgaA is a membrane protein that prevents overactivation of the Rcs regulatory system in enteric bacteria. Here we provide evidence that igaA is the first gene in a 70-dependent operon of Salmonella enterica serovar Typhimurium ...
Tesis Doctoral
Artículo
Roles of DNA adenine methylation in host-pathogen interactions: mismatch repair, transcriptional regulation, and more
(Oxford University Press, 2009)
The Dam methylase of gamma-proteobacteria and the CcrM methylase of alpha-proteobacteria catalyze an identical reaction (methylation of adenosine moieties using S-adenosyl-methionine as methyl donor) at similar DNA targets ...
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 ...