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Liquid droplet formation by HP1α suggests a role for phase separation in heterochromatin [PDF]

open access: yesNature, 2017
Gene silencing by heterochromatin is proposed to occur in part as a result of the ability of heterochromatin protein 1 (HP1) proteins to spread across large regions of the genome, compact the underlying chromatin and recruit diverse ligands.
A. Larson   +8 more
semanticscholar   +3 more sources

Heterochromatin: Guardian of the Genome [PDF]

open access: yesAnnual Review of Cell and Developmental Biology, 2018
Constitutive heterochromatin is a major component of the eukaryotic nucleus and is essential for the maintenance of genome stability. Highly concentrated at pericentromeric and telomeric domains, heterochromatin is riddled with repetitive sequences and has evolved specific ways to compartmentalize, silence, and repair repeats.
Janssen, Aniek   +2 more
openaire   +5 more sources

Establishment and evolution of heterochromatin [PDF]

open access: yesAnnals of the New York Academy of Sciences, 2020
AbstractThe eukaryotic genome is packaged into transcriptionally active euchromatin and silent heterochromatin, with most studies focused on the former encompassing the majority of protein‐coding genes. The recent development of various sequencing techniques has refined this classic dichromatic partition and has better illuminated the composition ...
Jing Liu   +5 more
openaire   +4 more sources

Imaging the response to DNA damage in heterochromatin domains reveals core principles of heterochromatin maintenance

open access: yesNature 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
doaj   +2 more sources

The Cell Biology of Heterochromatin

open access: yesCells, 2022
A conserved feature of virtually all higher eukaryotes is that the centromeres are embedded in heterochromatin. Here we provide evidence that this tight association between pericentric heterochromatin and the centromere is essential for proper metaphase ...
Brandt Warecki, William Sullivan
doaj   +3 more sources

Heterochromatin in plant meiosis

open access: yesNucleus
Heterochromatin is an organizational property of eukaryotic chromosomes, characterized by extensive DNA and histone modifications, that is associated with the silencing of transposable elements and repetitive sequences.
Cong Wang   +3 more
doaj   +3 more sources

Heterochromatin as an Important Driver of Genome Organization

open access: yesFrontiers in Cell and Developmental Biology, 2020
Heterochromatin is a constituent of eukaryotic genomes with functions spanning from gene expression silencing to constraining DNA replication and repair.
Andrés Penagos-Puig   +1 more
doaj   +2 more sources

Heterochromatin and nucleic acid

open access: hybridAgricultural and Food Science, 1948
Heterokromaattisiksi tämän käsitteen laajimmassa merkityksessä on nimitetty kromosominosia, jotka spiraloitumiseensa ja värjäytyväisyyteensä nähden jossain tuman vaiheessa eroavat muista, eukromaattisista kromosominosista. Heterokromatiini, sen rakenne ja toiminta, ovat erikoisesti viimeisen kymmenen vuoden aikana olleet vilkkaan tutkimuksen kohteena ...
Eeva Therman-Suomalainen
openaire   +5 more sources

Establishment of H3K9-methylated heterochromatin and its functions in tissue differentiation and maintenance

open access: yesNature reviews. Molecular cell biology, 2022
Heterochromatin is characterized by dimethylated or trimethylated histone H3 Lys9 (H3K9me2 or H3K9me3, respectively) and is found at transposable elements, satellite repeats and genes, where it ensures their transcriptional silencing.
Jan Padeken   +2 more
semanticscholar   +1 more source

The regional sequestration of heterochromatin structural proteins is critical to form and maintain silent chromatin

open access: yesEpigenetics & 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
doaj   +1 more source

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