Results 31 to 40 of about 186,634 (241)

Regulation of Transcription through Acetylation of H3K122 on the Lateral Surface of the Histone Octamer [PDF]

open access: bronzeCell, 2013
Philipp Tropberger   +11 more
openalex   +2 more sources

Chaperoning of the histone octamer by the acidic domain of DNA repair factor APLF

open access: yesbioRxiv, 2021
Nucleosome assembly requires the coordinated deposition of histone complexes H3-H4 and H2A-H2B to form a histone octamer on DNA. In the current paradigm, specific histone chaperones guide the deposition of first H3-H4 and then H2A-H2B(1–5). Here, we show
Ivan Corbeski   +14 more
semanticscholar   +1 more source

Abstract P-19: 15-Microsecond Molecular Dynamics Simulations of Nucleosome Show Structural Heterogeneity and Plasticity [PDF]

open access: yesInternational Journal of Biomedicine, 2021
Background: Nucleosomes are basic units of chromatin organization, resembling spools with ~150 base pairs of DNA wrapped around the octamer of histone proteins. They play a crucial role in chromatin compactization and gene expression.
Grigoriy A. Armeev   +4 more
doaj   +1 more source

Molecular mechanism of UV damage modulation in nucleosomes

open access: yesComputational and Structural Biotechnology Journal, 2022
Exposure to ultraviolet (UV) light causes the formation of mutagenic cyclobutane pyrimidine dimers (CPDs) in cellular DNA. Previous studies have revealed that CPD formation in nucleosomes, the building blocks of chromatin, shows a striking ∼10 base pair (
Bastian Stark   +2 more
doaj   +1 more source

Histone variant H2A.Z modulates nucleosome dynamics to promote DNA accessibility

open access: yesNature Communications, 2023
Here the authors show that H2A.Z histone variant incorporation reduces the nucleosomal barrier for transcription. Furthermore their simulations reveal that H2A.Z facilitates spontaneous DNA unwrapping from the histone octamer and enhances nucleosome ...
Shuxiang Li   +2 more
doaj   +1 more source

Histone dynamics mediate DNA unwrapping and sliding in nucleosomes

open access: yesNature Communications, 2021
Nucleosomes tightly wrap ~147 DNA base pairs around an octamer of histone proteins, but how nucleosome structural dynamics affect genome functioning is not completely clear.
Grigoriy A. Armeev   +4 more
doaj   +1 more source

Octamer reconstitution from acid‐extracted chicken erythrocyte histones [PDF]

open access: yesFEBS Letters, 1983
Histone octamers have been reconstituted from acid‐extracted chicken erythrocyte histones. By the criteria of molecular size on exclusion chromatography as well as sedimentation velocity and conformational properties established by circular dichroism, fluorescence spectroscopy and imido‐ester cross‐linking, the reconstituted octamers have a structure ...
Lindsey, George G.   +4 more
openaire   +2 more sources

The Histone Modifications of Neuronal Plasticity

open access: yesNeural Plasticity, 2021
Nucleosomes composed of histone octamer and DNA are the basic structural unit in the eukaryote chromosome. Under the stimulation of various factors, histones will undergo posttranslational modifications such as methylation, phosphorylation, acetylation ...
Huixia Geng   +3 more
doaj   +1 more source

A Horizontal Magnetic Tweezers for Studying Single DNA Molecules and DNA-Binding Proteins

open access: yesMolecules, 2021
We report data from single molecule studies on the interaction between single DNA molecules and core histones using custom-designed horizontal magnetic tweezers.
Roberto Fabian   +5 more
doaj   +1 more source

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