Results 21 to 30 of about 33,260 (245)

Histone transfer among chaperones [PDF]

open access: yesBiochemical Society Transactions, 2012
The eukaryotic processes of nucleosome assembly and disassembly govern chromatin dynamics, in which histones exchange in a highly regulated manner to promote genome accessibility for all DNA-dependent processes. This regulation is partly carried out by histone chaperones, which serve multifaceted roles in co-ordinating the interactions of histone ...
Wallace H, Liu, Mair E A, Churchill
openaire   +2 more sources

Histone chaperones regulate histone exchange during transcription [PDF]

open access: yesThe EMBO Journal, 2007
Transcription by RNA polymerase II is accompanied by dynamic changes in chromatin, including the eviction/deposition of nucleosomes or the covalent modification of histone subunits. This study examined the role of the histone H3/H4 chaperones, Asf1 and HIR, in histone mobility during transcription, with particular focus on the histone exchange pathway,
Hye-Jin, Kim   +4 more
openaire   +2 more sources

Stable inheritance of H3.3-containing nucleosomes during mitotic cell divisions

open access: yesNature Communications, 2022
How nucleosome assembly of parental histones is regulated following DNA replication is still an open question. Here the authors show that unlike deposition of new histones H3.1 and H3.3 that utilizes different histone chaperones, parental H3.1 and H3.3 ...
Xiaowei Xu   +5 more
doaj   +1 more source

The histone chaperone Nrp1 is required for chromatin stability and nuclear division in Tetrahymena thermophila

open access: yesEpigenetics & Chromatin, 2021
Histone chaperones facilitate DNA replication and repair by promoting chromatin assembly, disassembly and histone exchange. Following histones synthesis and nucleosome assembly, the histones undergo posttranslational modification by different enzymes and
Yinjie Lian   +5 more
doaj   +1 more source

Dynamic Activity of Histone H3-Specific Chaperone Complexes in Oncogenesis

open access: yesFrontiers in Oncology, 2022
Canonical histone H3.1 and variant H3.3 deposit at different sites of the chromatin via distinct histone chaperones. Histone H3.1 relies on chaperone CAF-1 to mediate replication-dependent nucleosome assembly during S-phase, while H3.3 variant is ...
Ting Wen, Qiao Yi Chen
doaj   +1 more source

Histone chaperones in nucleosome eviction and histone exchange [PDF]

open access: yesCurrent Opinion in Structural Biology, 2008
The recent two years have led to the realization that histone chaperones contribute to the delicate balance between nucleosome assembly and re-assembly during transcription, and may in fact be involved as much in histone eviction as they are in chromatin assembly.
Young-Jun, Park, Karolin, Luger
openaire   +2 more sources

Mitochondrial stress in advanced fibrosis and cirrhosis associated with chronic hepatitis B, chronic hepatitis C, or nonalcoholic steatohepatitis

open access: yesHepatology, EarlyView., 2022
Adaptive mitochondrial mechanisms allow mitochondrial resilience and prevent the worsening of fibrosis, while deregulation of these mechanisms promotes the progression from no/minimal‐mild (F0‐F2) fibrosis to advanced fibrosis and cirrhosis (F3‐F4). Abstract Background and Aims Hepatitis B virus (HBV) infection causes oxidative stress (OS) and alters ...
Dimitri Loureiro   +17 more
wiley   +1 more source

Molecular Size Analysis of Recombinant Importin-histone Complexes Using Analytical Ultracentrifugation

open access: yesBio-Protocol, 2020
Histones constitute the protein components of nucleosomes. Despite their small sizes, histones do not diffuse through the nuclear pore complex. Instead, they are transported to the nucleus by importins, either alone or in complex with histone chaperones.
Abhilash Padavannil   +2 more
doaj   +1 more source

The CAF-1 and Hir Histone Chaperones Associate with Sites of Meiotic Double-Strand Breaks in Budding Yeast. [PDF]

open access: yesPLoS ONE, 2015
In the meiotic prophase, programmed DNA double-strand breaks (DSB) are introduced along chromosomes to promote homolog pairing and recombination. Although meiotic DSBs usually occur in nucleosome-depleted, accessible regions of chromatin, their repair by
Elsa Brachet   +3 more
doaj   +1 more source

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