Results 1 to 10 of about 75,018 (265)

Predicting human nucleosome occupancy from primary sequence. [PDF]

open access: yesPLoS Computational Biology, 2008
Nucleosomes are the fundamental repeating unit of chromatin and comprise the structural building blocks of the living eukaryotic genome. Micrococcal nuclease (MNase) has long been used to delineate nucleosomal organization.
Shobhit Gupta   +5 more
doaj   +1 more source

Structural Transition of the Nucleosome during Transcription Elongation

open access: yesCells, 2023
In eukaryotes, genomic DNA is tightly wrapped in chromatin. The nucleosome is a basic unit of chromatin, but acts as a barrier to transcription. To overcome this impediment, the RNA polymerase II elongation complex disassembles the nucleosome during ...
Tomoya Kujirai   +3 more
doaj   +1 more source

H3.3-H4 tetramer splitting events feature cell-type specific enhancers. [PDF]

open access: yesPLoS Genetics, 2013
Previously, we reported that little canonical (H3.1-H4)(2) tetramers split to form "hybrid" tetramers consisted of old and new H3.1-H(4) dimers, but approximately 10% of (H3.3-H4)2 tetramers split during each cell cycle.
Chang Huang   +7 more
doaj   +1 more source

NucleoMap: A computational tool for identifying nucleosomes in ultra-high resolution contact maps.

open access: yesPLoS Computational Biology, 2022
Although poorly positioned nucleosomes are ubiquitous in the eukaryotic genome, they are difficult to identify with existing nucleosome identification methods.
Yuanhao Huang, Bingjiang Wang, Jie Liu
doaj   +1 more source

Nucleosome Organization in Human Embryonic Stem Cells. [PDF]

open access: yesPLoS ONE, 2015
The fundamental repeating unit of eukaryotic chromatin is the nucleosome. Besides being involved in packaging DNA, nucleosome organization plays an important role in transcriptional regulation and cellular identity.
Puya G Yazdi   +7 more
doaj   +1 more source

The effect of micrococcal nuclease digestion on nucleosome positioning data. [PDF]

open access: yesPLoS ONE, 2010
Eukaryotic genomes are packed into chromatin, whose basic repeating unit is the nucleosome. Nucleosome positioning is a widely researched area. A common experimental procedure to determine nucleosome positions involves the use of micrococcal nuclease ...
Ho-Ryun Chung   +7 more
doaj   +1 more source

NucHMM: a method for quantitative modeling of nucleosome organization identifying functional nucleosome states distinctly associated with splicing potentiality

open access: yesGenome Biology, 2021
We develop a novel computational method, NucHMM, to identify functional nucleosome states associated with cell type-specific combinatorial histone marks and nucleosome organization features such as phasing, spacing and positioning. We test it on publicly
Kun Fang   +3 more
doaj   +1 more source

Biochemical characterization of the placeholder nucleosome for DNA hypomethylation maintenance

open access: yesBiochemistry and Biophysics Reports, 2019
DNA methylation functions as a prominent epigenetic mark, and its patterns are transmitted to the genomes of offspring. The nucleosome containing the histone H2A.Z variant and histone H3K4 mono-methylation acts as a “placeholder” nucleosome for DNA ...
Rina Hirano   +3 more
doaj   +1 more source

The histone chaperone FACT modulates nucleosome structure by tethering its components

open access: yesLife Science Alliance, 2018
The histone chaperone FACT functions by tethering partial components of the nucleosome, thereby assisting nucleosome disassembly and reassembly during transcription.
Tao Wang   +5 more
doaj   +1 more source

Two distinct modes of nucleosome modulation associated with different degrees of dependence of nucleosome positioning on the underlying DNA sequence

open access: yesBMC Genomics, 2009
Background The nucleosome is the fundamental unit of eukaryotic genomes. Its positioning plays a central role in diverse cellular processes that rely on access to genomic DNA.
Wang Jiang   +6 more
doaj   +1 more source

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