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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.
Agard, David A   +8 more
core   +2 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 ...
A. Janssen   +2 more
semanticscholar   +5 more sources

Establishment and evolution of heterochromatin [PDF]

open access: yesAnnals of the New York Academy of Sciences, 2020
The 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
Jing Liu, Mujahid Ali, Qi Zhou
semanticscholar   +4 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 exit and progression into telophase. Analysis of chromosome rearrangements that separate pericentric
Brandt Warecki, William Sullivan
openaire   +4 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
openalex   +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

53BP1 regulates heterochromatin through liquid phase separation

open access: yesNature Communications, 2022
Human 53BP1 is primarily known as a key player in regulating DNA double strand break (DSB) repair choice; however, its involvement in other biological process is less well understood.
Lei Zhang   +18 more
semanticscholar   +1 more source

SIRT3 consolidates heterochromatin and counteracts senescence

open access: yesNucleic Acids Research, 2021
Sirtuin 3 (SIRT3) is an NAD+-dependent deacetylase linked to a broad range of physiological and pathological processes, including aging and aging-related diseases. However, the role of SIRT3 in regulating human stem cell homeostasis remains unclear. Here
Zhiqing Diao   +15 more
semanticscholar   +1 more source

Heterochromatin: silence is golden [PDF]

open access: yesCurrent Biology, 2003
Epigenetically heritable heterochromatin domains control a variety of chromosomal functions. In addition to stable repression of large pericentric and telomeric domains, heterochromatin plays an essential role in the maintenance of genomic integrity through its role in sister chromatin cohesion and chromosome segregation.
Shiv I. S. Grewal, Sarah C. R. Elgin
openaire   +3 more sources

Pericentromeric heterochromatin is hierarchically organized and spatially contacts H3K9me2 islands in euchromatin. [PDF]

open access: yes, 2020
Membraneless pericentromeric heterochromatin (PCH) domains play vital roles in chromosome dynamics and genome stability. However, our current understanding of 3D genome organization does not include PCH domains because of technical challenges associated ...
Acevedo, David   +7 more
core   +2 more sources

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