Results 21 to 30 of about 75,018 (265)

Replicating nucleosomes [PDF]

open access: yesScience Advances, 2015
Reestablishment of the nucleosome landscape behind the replication fork is fundamental for epigenetic memory during development.
Ramachandran, Srinivas, Henikoff, Steven
openaire   +2 more sources

Evidence of association between Nucleosome Occupancy and the Evolution of Transcription Factor Binding Sites in Yeast

open access: yesBMC Evolutionary Biology, 2011
Background Divergence of transcription factor binding sites is considered to be an important source of regulatory evolution. The associations between transcription factor binding sites and phenotypic diversity have been investigated in many model ...
Chu Wen-Yi   +4 more
doaj   +1 more source

High nucleosome occupancy is encoded at human regulatory sequences. [PDF]

open access: yesPLoS ONE, 2010
Active eukaryotic regulatory sites are characterized by open chromatin, and yeast promoters and transcription factor binding sites (TFBSs) typically have low intrinsic nucleosome occupancy. Here, we show that in contrast to yeast, DNA at human promoters,
Desiree Tillo   +9 more
doaj   +1 more source

Conservation of Nucleosome Positions in Duplicated and Orthologous Gene Pairs

open access: yesThe Scientific World Journal, 2012
Although nucleosome positions tend to be conserved in gene promoters, whether they are conserved in duplicated and orthologous genes is unknown. In order to elucidate how nucleosome positions are conserved between duplicated and orthologous gene pairs, I
Hiromi Nishida
doaj   +1 more source

Manipulating chromatin architecture in C. elegans

open access: yesEpigenetics & Chromatin, 2022
Background Nucleosome-mediated chromatin compaction has a direct effect on the accessibility of trans-acting activators and repressors to DNA targets and serves as a primary regulatory agent of genetic expression. Understanding the nature and dynamics of
John L. Carter   +3 more
doaj   +1 more source

Archaeal nucleosomes [PDF]

open access: yesProceedings of the National Academy of Sciences, 1997
Archaea contain histones that have primary sequences in common with eukaryal nucleosome core histones and a three-dimensional structure that is essentially only the histone fold. Here we report the results of experiments that document that archaeal histones compact DNA in vivo
S L, Pereira   +3 more
openaire   +2 more sources

Genome-scale identification of nucleosome organization by using 1000 porcine oocytes at different developmental stages. [PDF]

open access: yesPLoS ONE, 2017
The nucleosome is the basic structural unit of chromosomes, and its occupancy and distribution in promoters are crucial for the regulation of gene expression.
Chenyu Tao   +5 more
doaj   +1 more source

Crystal structures of heterotypic nucleosomes containing histones H2A.Z and H2A [PDF]

open access: yesOpen Biology, 2016
H2A.Z is incorporated into nucleosomes located around transcription start sites and functions as an epigenetic regulator for the transcription of certain genes.
Naoki Horikoshi   +3 more
doaj   +1 more source

Ion counting demonstrates a high electrostatic field generated by the nucleosome

open access: yeseLife, 2019
In eukaryotes, a first step towards the nuclear DNA compaction process is the formation of a nucleosome, which is comprised of negatively charged DNA wrapped around a positively charged histone protein octamer.
Magdalena Gebala   +3 more
doaj   +1 more source

Thermodynamic modeling of genome-wide nucleosome depleted regions in yeast.

open access: yesPLoS Computational Biology, 2021
Nucleosome positioning in the genome is essential for the regulation of many nuclear processes. We currently have limited capability to predict nucleosome positioning in vivo, especially the locations and sizes of nucleosome depleted regions (NDRs). Here,
Hungyo Kharerin, Lu Bai
doaj   +1 more source

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