PLoS Genetics, 2019 H3K9 methylation (H3K9me) is a conserved marker of heterochromatin, a transcriptionally silent chromatin structure. Knowledge of the mechanisms for regulating heterochromatin distribution is limited.
Masato Sorida +12 more
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Sex Differences in Drosophila melanogaster Heterochromatin Are Regulated by Non-Sex Specific Factors. [PDF]
PLoS ONE, 2015 The eukaryotic genome is assembled into distinct types of chromatin. Gene-rich euchromatin has active chromatin marks, while heterochromatin is gene-poor and enriched for silencing marks.
Manasi S Apte, Victoria H Meller
doaj +1 more source
ATM Breaks into Heterochromatin [PDF]
Molecular Cell, 2008 Heterochromatin is refractory to DNA transactions, including repair. In a recent issue of Molecular Cell, Goodarzi et al. (2008) reveal how the central transducing kinase of the DNA damage response relieves this natural barrier by increasing heterochromatic DNA accessibility.
Oscar Fernandez-Capetillo +1 more
openaire +3 more sources
Assessing the Epigenetic Status of Human Telomeres [PDF]
, 2019 The epigenetic modifications of human telomeres play a relevant role in telomere functions and cell proliferation. Therefore, their study is becoming an issue of major interest.
Vaquero Sedas, María Isabel +1 more
core +1 more source
The basal level of gene expression associated with chromatin loosening shapes Waddington landscapes and controls cell differentiation [PDF]
J. Mol. Biol. 432 (2020) 2253-2270, 2020 The baseline level of transcription, which is variable and difficult to quantify, seriously complicates the normalization of comparative transcriptomic data, but its biological importance remains unappreciated. We show that this currently neglected ingredient is essential for controlling gene network multistability and therefore cellular ...
arxiv +1 more source
Nature Communications, 2021 The heterochromatin compartment is key for genome stability and cell fate transitions. Here, by tracking the heterochromatin response to UV damage in real time, the authors reveal how heterochromatin features are preserved following a genotoxic stress ...
Anna Fortuny +6 more
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A model of dynamic stability of H3K9me3 heterochromatin to explain the resistance to reprogramming of differentiated cells [PDF]
Biochim Biophys Acta. Gene Regulatory Mechanisms 2017
Feb;1860(2):184-195, 2017 Despite their dynamic nature, certain chromatin marks must be maintained over the long term. This is particulary true for histone 3 lysine 9 (H3K9) trimethylation, that is involved in the maintenance of healthy differentiated cellular states by preventing inappropriate gene expression, and has been recently identified as the most efficient barrier to ...
arxiv +1 more source
A maximum-entropy model to predict 3D structural ensembles of chromatins from pairwise distances: Applications to Interphase Chromosomes and Structural Variants [PDF]
, 2022 The principles that govern the organization of genomes, which are needed for a deeper understanding of how chromosomes are packaged and function in eukaryotic cells, could be deciphered if the three-dimensional (3D) structures are known. Recently, single-cell imaging experiments have determined the 3D coordinates of a number of loci in a chromosome ...
arxiv +1 more source
Histone H4 lysine 12 acetylation regulates telomeric heterochromatin plasticity in Saccharomyces cerevisiae. [PDF]
PLoS Genetics, 2011 Recent studies have established that the highly condensed and transcriptionally silent heterochromatic domains in budding yeast are virtually dynamic structures. The underlying mechanisms for heterochromatin dynamics, however, remain obscure.
Bo O Zhou +6 more
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How HP1 Post-Translational Modifications Regulate Heterochromatin Formation and Maintenance
Cells, 2020 Heterochromatin Protein 1 (HP1) is a highly conserved protein that has been used as a classic marker for heterochromatin. HP1 binds to di- and tri-methylated histone H3K9 and regulates heterochromatin formation, functions and structure.
Raquel Sales-Gil, Paola Vagnarelli
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