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Chromosome Dynamics in Response to DNA Damage
- Source :
- Annual Review of Genetics. 52:295-319
- Publication Year :
- 2018
- Publisher :
- Annual Reviews, 2018.
-
Abstract
- Recent advances in both the technologies used to measure chromatin movement and the biophysical analysis used to model them have yielded a fuller understanding of chromatin dynamics and the polymer structure that underlies it. Changes in nucleosome packing, checkpoint kinase activation, the cell cycle, chromosomal tethers, and external forces acting on nuclei in response to external and internal stimuli can alter the basal mobility of DNA in interphase nuclei of yeast or mammalian cells. Although chromatin movement is assumed to be necessary for many DNA-based processes, including gene activation by distal enhancer–promoter interaction or sequence-based homology searches during double-strand break repair, experimental evidence supporting an essential role in these activities is sparse. Nonetheless, high-resolution tracking of chromatin dynamics has led to instructive models of the higher-order folding and flexibility of the chromatin polymer. Key regulators of chromatin motion in physiological conditions or after damage induction are reviewed here.
- Subjects :
- 0301 basic medicine
DNA Repair
DNA damage
Saccharomyces cerevisiae
Biology
Chromosomes
03 medical and health sciences
chemistry.chemical_compound
0302 clinical medicine
Genetics
Animals
Nucleosome
DNA Breaks, Double-Stranded
Cell Nucleus
Mammals
Regulation of gene expression
Chromosome
Cell cycle
Chromatin
Nucleosomes
Cell biology
030104 developmental biology
chemistry
Interphase
030217 neurology & neurosurgery
DNA
DNA Damage
Subjects
Details
- ISSN :
- 15452948 and 00664197
- Volume :
- 52
- Database :
- OpenAIRE
- Journal :
- Annual Review of Genetics
- Accession number :
- edsair.doi.dedup.....2a942499cacc4e991c9ca2f7dc4d62f2