Search results for "Cell Nucleus Structures"

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Heat shock and Cd2+ exposure regulate PML and Daxx release from ND10 by independent mechanisms that modify the induction of heat-shock proteins 70 an…

2003

Nuclear domains called ND10 or PML bodies might function as nuclear depots by recruiting or releasing certain proteins. Although recruitment of proteins through interferon-induced upregulation and SUMO-1 modification level of PML had been defined, it is not known whether release of proteins is regulated and has physiological consequences. Exposure to sublethal environmental stress revealed a sequential release of ND10-associated proteins. Upon heat shock Daxx and Sp100 were released but PML remained, whereas exposure to subtoxic concentrations of CdCl2 induced the release of ND10-associated proteins, including PML, with Sp100 remaining in a few sites. In both cases,recovery times were simil…

Co-Repressor ProteinsMAP Kinase Signaling SystemMacromolecular SubstancesSUMO-1 ProteinPromyelocytic Leukemia ProteinMicePromyelocytic leukemia proteinDeath-associated protein 6Stress PhysiologicalHeat shock proteinEndopeptidasesAnimalsHSP70 Heat-Shock ProteinsEnzyme InhibitorsHeat shockTranscription factorCells CulturedHeat-Shock ProteinsbiologyTumor Suppressor ProteinsIntracellular Signaling Peptides and ProteinsNuclear ProteinsCell BiologyCell Nucleus StructuresNeoplasm ProteinsCell biologyHsp70Cysteine EndopeptidasesEukaryotic CellsGene Expression RegulationImmunologybiology.proteinSignal transductionCarrier ProteinsCo-Repressor ProteinsHeat-Shock ResponseCadmiumMolecular ChaperonesTranscription FactorsJournal of Cell Science
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Chromatin modifiers and recombination factors promote a telomere fold-back structure, that is lost during replicative senescence.

2020

Telomeres have the ability to adopt a lariat conformation and hence, engage in long and short distance intra-chromosome interactions. Budding yeast telomeres were proposed to fold back into subtelomeric regions, but a robust assay to quantitatively characterize this structure has been lacking. Therefore, it is not well understood how the interactions between telomeres and non-telomeric regions are established and regulated. We employ a telomere chromosome conformation capture (Telo-3C) approach to directly analyze telomere folding and its maintenance in S. cerevisiae. We identify the histone modifiers Sir2, Sin3 and Set2 as critical regulators for telomere folding, which suggests that a dis…

TelomeraseProtein Folding:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::DNA-Binding Proteins::Rad52 DNA Repair and Recombination Protein [Medical Subject Headings]:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Fungal Proteins::Saccharomyces cerevisiae Proteins [Medical Subject Headings]Gene ExpressionYeast and Fungal ModelsArtificial Gene Amplification and ExtensionQH426-470BiochemistryPolymerase Chain ReactionChromosome conformation captureHistonesCromatina0302 clinical medicineSirtuin 2Macromolecular Structure AnalysisSilent Information Regulator Proteins Saccharomyces cerevisiaeCellular Senescence:Organisms::Eukaryota::Fungi::Yeasts::Saccharomyces::Saccharomyces cerevisiae [Medical Subject Headings]0303 health sciencesChromosome BiologyEukaryota:Phenomena and Processes::Genetic Phenomena::Genetic Processes::DNA Replication [Medical Subject Headings]TelomereSubtelomere:Anatomy::Cells::Cellular Structures::Intracellular Space::Cell Nucleus::Cell Nucleus Structures::Intranuclear Space::Chromosomes::Chromosome Structures::Telomere [Medical Subject Headings]Chromatin3. Good healthChromatinCell biologyNucleic acidsTelomeres:Phenomena and Processes::Cell Physiological Phenomena::Cell Physiological Processes::Cell Cycle::Cell Division::Telomere Homeostasis [Medical Subject Headings]Experimental Organism SystemsDaño del ADNEpigeneticsResearch ArticleSenescenceDNA Replication:Chemicals and Drugs::Enzymes and Coenzymes::Enzymes::Hydrolases::Amidohydrolases::Histone Deacetylases [Medical Subject Headings]Chromosome Structure and FunctionProtein StructureSaccharomyces cerevisiae ProteinsSaccharomyces cerevisiaeBiologyResearch and Analysis MethodsHistone DeacetylasesChromosomes03 medical and health sciencesSaccharomycesModel Organisms:Chemicals and Drugs::Enzymes and Coenzymes::Enzymes::Transferases::One-Carbon Group Transferases::Methyltransferases [Medical Subject Headings]:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Intracellular Signaling Peptides and Proteins::Sirtuins::Sirtuin 2 [Medical Subject Headings]:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Fungal Proteins::Saccharomyces cerevisiae Proteins::Silent Information Regulator Proteins Saccharomyces cerevisiae [Medical Subject Headings]DNA-binding proteinsGenetics:Chemicals and Drugs::Enzymes and Coenzymes::Enzymes::Recombinases::Rec A Recombinases::Rad51 Recombinase [Medical Subject Headings]Molecular Biology TechniquesMolecular Biology030304 developmental biologyCromosomasSenescencia celularOrganismsFungiBiology and Life SciencesProteinsTelomere HomeostasisCell BiologyDNAMethyltransferasesG2-M DNA damage checkpointProteína recombinante y reparadora de ADN Rad52YeastTelomereRad52 DNA Repair and Recombination ProteinRepressor ProteinsAnimal Studies:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Transcription Factors::Repressor Proteins [Medical Subject Headings]DNA damageRad51 RecombinaseHomologous recombination030217 neurology & neurosurgeryTelómeroDNA DamagePLoS Genetics
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