Results 51 to 60 of about 1,693,917 (277)

Genome mapping and characterization of the Anopheles gambiae heterochromatin

open access: yesBMC Genomics, 2010
Background Heterochromatin plays an important role in chromosome function and gene regulation. Despite the availability of polytene chromosomes and genome sequence, the heterochromatin of the major malaria vector Anopheles gambiae has not been mapped and
Sharakhova Maria V   +6 more
doaj   +1 more source

Heterochromatin protein 1 (HP1) proteins do not drive pericentromeric cohesin enrichment in human cells. [PDF]

open access: yesPLoS ONE, 2009
Sister chromatid cohesion mediated by cohesin is essential for accurate chromosome segregation. Classical studies suggest that heterochromatin promotes cohesion, but whether this happens through regulation of cohesin remains to be determined ...
Angel Serrano   +2 more
doaj   +1 more source

Regulation of ectopic heterochromatin-mediated epigenetic diversification by the JmjC family protein Epe1.

open access: yesPLoS 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
doaj   +1 more source

Decrease in DNA methylation 1 interacts with chromomethylase and like heterochromatin protein 1 in Physcomitrella patens

open access: yesFEBS Letters, 2019
The nucleosome remodeling protein decrease in DNA methylation 1 (DDM1)/Lsh maintains normal levels of DNA methylation. Direct interaction between Lsh and DNA methyltransferase 1 (Dnmt1) and their localization to heterochromatin in the presence of ...
Vimala Parihar   +4 more
semanticscholar   +1 more source

DNA methylation dynamics in aging: How far are we from understanding the mechanisms? [PDF]

open access: yes, 2018
DNA methylation is currently the most promising molecular marker for monitoring aging and predicting life expectancy. However, the mechanisms underlying age-related DNA methylation changes remain mostly undiscovered.Here we discuss the current knowledge ...
Caiafa, Paola   +3 more
core   +1 more source

Dynamic and flexible H3K9me3 bridging via HP1β dimerization establishes a plastic state of condensed chromatin

open access: yesNature Communications, 2016
Heterochromatin protein 1 (HP1), including HP1 α, β and γ, is a family of non-histone chromatin factors thought to be involved in chromatin organization.
Kyoko Hiragami-Hamada   +19 more
doaj   +1 more source

NUP-1 Is a large coiled-coil nucleoskeletal protein in trypanosomes with lamin-like functions. [PDF]

open access: yesPLoS Biology, 2012
A unifying feature of eukaryotic nuclear organization is genome segregation into transcriptionally active euchromatin and transcriptionally repressed heterochromatin.
Kelly N DuBois   +14 more
doaj   +1 more source

Accessibility of promoter DNA is not the primary determinant of chromatin-mediated gene regulation [PDF]

open access: yes, 2019
DNA accessibility is thought to be of major importance in regulating gene expression. We test this hypothesis using a restriction enzyme as a probe of chromatin structure and as a proxy for transcription factors.
Chereji, Razvan V.   +4 more
core   +1 more source

Perturbed DNA methylation by Gadd45b induces chromatin disorganization, DNA strand breaks and dopaminergic neuron death

open access: yesiScience, 2021
Summary: Age is a major risk factor for neurodegenerative diseases like Parkinson’s disease, but few studies have explored the contribution of key hallmarks of aging, namely DNA methylation changes and heterochromatin destructuration, in the ...
Camille Ravel-Godreuil   +5 more
doaj   +1 more source

The Drosophila histone variant H2A.V works in concert with HP1 to promote kinetochore-driven microtubule formation [PDF]

open access: yes, 2015
Unlike other organisms that have evolved distinct H2A variants for different functions, Drosophila melanogaster has just one variant which is capable of filling many roles.
Cenci, Giovanni, Verni', Fiammetta
core   +1 more source

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