Results 41 to 50 of about 117,333 (292)

The composition and organization of Drosophila heterochromatin are heterogeneous and dynamic

open access: yeseLife, 2016
Heterochromatin is enriched for specific epigenetic factors including Heterochromatin Protein 1a (HP1a), and is essential for many organismal functions.
Joel M Swenson   +4 more
doaj   +1 more source

How HP1 Post-Translational Modifications Regulate Heterochromatin Formation and Maintenance

open access: yesCells, 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
doaj   +1 more source

Imaging the Response to DNA Damage in Heterochromatin Domains

open access: yesFrontiers in Cell and Developmental Biology, 2022
The eukaryotic genome is assembled in a nucleoprotein complex called chromatin, whose organization markedly influences the repair of DNA lesions. For instance, compact chromatin states, broadly categorized as heterochromatin, present a challenging ...
Audrey Chansard   +3 more
doaj   +1 more source

The cAMP signaling pathway regulates Epe1 protein levels and heterochromatin assembly.

open access: yesPLoS Genetics, 2022
The epigenetic landscape of a cell frequently changes in response to fluctuations in nutrient levels, but the mechanistic link is not well understood.
Kehan Bao   +11 more
doaj   +1 more source

The histone chaperone FACT facilitates heterochromatin spreading by regulating histone turnover and H3K9 methylation states

open access: yesCell Reports, 2021
Summary: Heterochromatin formation requires three distinct steps: nucleation, self-propagation (spreading) along the chromosome, and faithful maintenance after each replication cycle.
Magdalena Murawska   +7 more
doaj   +1 more source

ATXR5 and ATXR6 are H3K27 monomethyltransferases required for chromatin structure and gene silencing. [PDF]

open access: yes, 2009
Constitutive heterochromatin in Arabidopsis thaliana is marked by repressive chromatin modifications, including DNA methylation, histone H3 dimethylation at Lys9 (H3K9me2) and monomethylation at Lys27 (H3K27me1).
Bernatavichute, Yana V   +9 more
core   +1 more source

Heterochromatin Dynamics

open access: yesPLoS Biology, 2003
Heterochromatin is usually thought of as a stable and inactive region of the genome.
openaire   +5 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   +1 more source

Patterns of Heterochromatin Transitions Linked to Changes in the Expression of Plasmodium falciparum Clonally Variant Genes

open access: yesMicrobiology Spectrum, 2023
The survival of malaria parasites in the changing human blood environment largely depends on their ability to alter gene expression by epigenetic mechanisms.
Lucas Michel-Todó   +6 more
doaj   +1 more source

Positional changes of pericentromeric heterochromatin and nucleoli in postmitotic Purkinje cells during murine cerebellum development [PDF]

open access: yes, 2004
Previous studies revealed changes of pericentromeric heterochromatin arrangements in postmitotic Purkinje cells (PCs) during postnatal development in the mouse cerebellum (Manuelidis, 1985; Martou and De Boni, 2000). Here, we performed vibratome sections
Cremer, Thomas   +4 more
core   +1 more source

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