Results 31 to 40 of about 110,529 (257)
Transcription of satellite DNAs in insects [PDF]
, 2011 Chromatin condensation is an important regulatory mechanism of gene silencing as well as gene activation for the hundreds of functional protein genes harbored in heterochromatic regions of different insect species.
D. Ugarkovic +3 more
core +1 more source
Cell Reports, 2017 RNAi-mediated positive feedback loops are pivotal for the maintenance of heterochromatin, but how they are downregulated at heterochromatin-euchromatin borders is not well understood.
Jan H. Suhren +5 more
doaj +1 more source
Cell Reports, 2020 Summary: Heterochromatin functions as a scaffold for factors responsible for gene silencing and chromosome segregation. Heterochromatin can be assembled by multiple pathways, including RNAi and RNA surveillance.
Si Young Lee +8 more
doaj +1 more source
Heterochromatin formation promotes longevity and represses ribosomal RNA synthesis. [PDF]
PLoS Genetics, 2012 Organismal aging is influenced by a multitude of intrinsic and extrinsic factors, and heterochromatin loss has been proposed to be one of the causes of aging. However, the role of heterochromatin in animal aging has been controversial.
Kimberly Larson +8 more
doaj +1 more source
Karyotypic variation in the Andean rodent Phyllotis xanthopygus (Waterhouse, 1837) (Rodentia, Cricetidae, Sigmodontinae) [PDF]
, 2014 Phyllotis xanthopygus (Waterhouse, 1837) is an Andean rodent endemic to South America. Despite its wide geographical distribution in Argentina, few individuals have been studied on the cytogenetic level and only through conventional staining.
Cuello, Pablo Andrés +8 more
core +4 more sources
De Novo Polycomb Recruitment: Lessons from Latent Herpesviruses
Viruses, 2021 The Human Herpesviruses persist in the form of a latent infection in specialized cell types. During latency, the herpesvirus genomes associate with cellular histone proteins and the viral lytic genes assemble into transcriptionally repressive ...
Sara A. Dochnal +2 more
doaj +1 more source
ATXR5 and ATXR6 are H3K27 monomethyltransferases required for chromatin structure and gene silencing. [PDF]
, 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
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
doaj +1 more source
Mediator directs co-transcriptional heterochromatin assembly by RNA interference-dependent and -independent pathways. [PDF]
PLoS Genetics, 2013 Heterochromatin at the pericentromeric repeats in fission yeast is assembled and spread by an RNAi-dependent mechanism, which is coupled with the transcription of non-coding RNA from the repeats by RNA polymerase II. In addition, Rrp6, a component of the
Eriko Oya +5 more
doaj +1 more source
H3K56me3 is a novel, conserved heterochromatic mark that largely but not completely overlaps with H3K9me3 in both regulation and localization. [PDF]
, 2013 Histone lysine (K) methylation has been shown to play a fundamental role in modulating chromatin architecture and regulation of gene expression. Here we report on the identification of histone H3K56, located at the pivotal, nucleosome DNA entry/exit ...
Bussemer, Silva +9 more
core +3 more sources