Heterochromatin revisited [PDF]
Nature Reviews Genetics, 2007 The formation of heterochromatin, which requires methylation of histone H3 at lysine 9 and the subsequent recruitment of chromodomain proteins such as heterochromatin protein HP1, serves as a model for the role of histone modifications and chromatin assembly in epigenetic control of the genome.
Shiv I Grewal, Songtao Jia
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Blocking heterochromatin spreading constrains cohesin binding at a yeast heterochromatic locus. [PDF]
PLoS ONECohesin mediates central features of chromosome architecture. The protein complex governs sister chromatid cohesion and organizes genomes into loops and domains.
Paul M Kraycer, Marc R Gartenberg
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Position effect variegation (PEV) as an aging clock: visualization of age-dependent loss of heterochromatin and longevity associated with enhanced heterochromatin [PDF]
Scientific ReportsThe heterochromatin loss model of aging suggests there is an age-dependent reduction in epigenetic factors that form and maintain the heterochromatin state of chromosomes.
Sesley Tedeschi +7 more
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Epigenetics & Chromatin, 2022 Budding yeast Saccharomyces cerevisiae and fission yeast Schizosaccharomyces pombe are good models for heterochromatin study. In S. pombe, H3K9 methylation and Swi6, an ortholog of mammalian HP1, lead to heterochromatin formation. However, S.
Junsoo Oh +3 more
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Global regulation of heterochromatin spreading by Leo1 [PDF]
Open Biology, 2015 Heterochromatin plays important roles in eukaryotic genome regulation. However, the repressive nature of heterochromatin combined with its propensity to self-propagate necessitates robust mechanisms to contain heterochromatin within defined boundaries ...
Laure Verrier +6 more
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The proper splicing of RNAi factors is critical for pericentric heterochromatin assembly in fission yeast. [PDF]
PLoS Genetics, 2014 Heterochromatin preferentially assembles at repetitive DNA elements, playing roles in transcriptional silencing, recombination suppression, and chromosome segregation.
Scott P Kallgren +8 more
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Constitutive Heterochromatin in Eukaryotic Genomes: A Mine of Transposable Elements
Cells, 2022 Transposable elements (TEs) are abundant components of constitutive heterochromatin of the most diverse evolutionarily distant organisms. TEs enrichment in constitutive heterochromatin was originally described in the model organism Drosophila ...
René Massimiliano Marsano +1 more
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Pre-implantation mouse embryos cultured In vitro under different oxygen concentrations show altered ultrastructures [PDF]
, 2020 Assisted Reproductive Technologies routinely utilize different culture media and oxygen (O2) concentrations to culture human embryos. Overall, embryos cultured under physiological O2 tension (5%) have improved development compared to embryos cultured ...
Antonouli, S +6 more
core +1 more source
Different behaviour of C-banded peri-centromeric heterochromatin between sex chromosomes and autosomes in Polyphagan beetles [PDF]
Comparative Cytogenetics, 2019 Heterochromatin variation was studied after C-banding of male karyotypes with a XY sex formula from 224 species belonging to most of the main families of Coleoptera.
Anne-Marie Dutrillaux +1 more
doaj +3 more sources
DNA Double-Strand Break Repair: All Roads Lead to HeterochROMAtin Marks
Frontiers in Genetics, 2021 In response to DNA double-strand breaks (DSBs), chromatin modifications orchestrate DNA repair pathways thus safeguarding genome integrity. Recent studies have uncovered a key role for heterochromatin marks and associated factors in shaping DSB repair ...
Pierre Caron +2 more
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