Results 41 to 50 of about 148,408 (312)

Nucleosomes affect local transformation efficiency [PDF]

open access: yes, 2012
Genetic transformation is a natural process during which foreign DNA enters a cell and integrates into the genome. Apart from its relevance for horizontal gene transfer in nature, transformation is also the cornerstone of today's recombinant gene ...
Aslankoohi, Elham   +6 more
core   +2 more sources

Nucleosome plasticity is a critical element of chromatin liquid–liquid phase separation and multivalent nucleosome interactions

open access: yesNature Communications, 2020
Liquid–liquid phase separation (LLPS) is an important mechanism that helps explain the membraneless compartmentalization of the nucleus. Because chromatin compaction and LLPS are collective phenomena, linking their modulation to the physicochemical ...
Stephen E. Farr   +4 more
semanticscholar   +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

The size of the nucleosome [PDF]

open access: yes, 2011
The structural origin of the size of the 11 nm nucleosomal disc is addressed. On the nanometer length-scale the organization of DNA as chromatin in the chromosomes involves a coiling of DNA around the histone core of the nucleosome.
A. Travers   +3 more
core   +2 more sources

Primary Role of the Nucleosome.

open access: yesMolecules and Cells, 2020
Whereas the core nucleosome is thought to serve as a packaging device for the coiling and contraction in length of genomic DNA, we suggest that it serves primarily in the regulation of transcription.
R. Kornberg, Y. Lorch
semanticscholar   +1 more source

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

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

Dynamic nucleosome landscape elicits a noncanonical GATA2 pioneer model

open access: yesNature Communications, 2022
Here the authors provide a multi-omic study of the nucleosome landscape in LNCaP cells and observe nine functional nucleosome states each with characteristic nucleosome footprints.
Tianbao Li   +7 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

Nucleosome Positioning [PDF]

open access: yesISRN Molecular Biology, 2012
Nucleosome positioning is not only related to genomic DNA compaction but also to other biological functions. After the chromatin is digested by micrococcal nuclease, nucleosomal (nucleosome-bound) DNA fragments can be sequenced and mapped on the genomic DNA sequence.
openaire   +2 more sources

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