Results 31 to 40 of about 272,086 (309)

The DNA-binding domain of the Chd1 chromatin-remodelling enzyme contains SANT and SLIDE domains [PDF]

open access: yes, 2011
The ATP-dependent chromatin-remodelling enzyme Chd1 is a 168-kDa protein consisting of a double chromodomain, Snf2-related ATPase domain, and a C-terminal DNA-binding domain.
Daniel P Ryan   +9 more
core   +1 more source

Chromatin Structure in Telomere Dynamics [PDF]

open access: yesFrontiers in Oncology, 2013
The establishment of a specific nucleoprotein structure, the telomere, is required to ensure the protection of chromosome ends from being recognized as DNA damage sites. Telomere shortening below a critical length triggers a DNA damage response that leads to replicative senescence.
GALATI, Alessandra   +2 more
openaire   +4 more sources

THE STRUCTURE AND FUNCTION OF CHROMATIN AND CHROMOSOMES [PDF]

open access: yesBiocomputing 2012, 2011
1. Background One of the striking features of the eukaryotic nucleus is that chromosomes adopt preferred conformations that vary across different tissues and developmental stages. Many lines of evidence suggest the functional significance of genome architecture, including the existence of chromosomes territories [1], the correlation between radial ...
William Stafford Noble   +4 more
openaire   +2 more sources

The CENP-A centromere targeting domain facilitates H4K20 monomethylation in the nucleosome by structural polymorphism

open access: yesNature Communications, 2019
Kinetochore function depends on H4K20 monomethylation in centromeric nucleosomes but the underlying mechanism is unclear. Here, the authors provide evidence that the centromere-specific nucleosome subunit CENP-A facilitates H4K20 methylation by enabling ...
Yasuhiro Arimura   +6 more
doaj   +1 more source

Retroviral integration into nucleosomes through DNA looping and sliding along the histone octamer

open access: yesNature Communications, 2019
Retroviral integrases catalyze the insertion of viral DNA into the host cell DNA and can use nucleosomes as substrates for integration. Here the authors present the 3.9 Å cryo-EM structure of prototype foamy virus integrase after strand transfer into ...
Marcus D. Wilson   +8 more
doaj   +1 more source

Characterization of humoral and SARS-CoV-2 specific T cell responses in people living with HIV

open access: yesNature Communications, 2021
Understanding the pathology and immunological response to SARS CoV2 infection in specific patient groups is essential for informing the scientific and clinical handling of infections within these patient populations.
Aljawharah Alrubayyi   +20 more
doaj   +1 more source

Transcription factor complex formation and chromatin fine structure alterations at the murine c-fms (CSF-1 receptor) locus during maturation of myeloid precursor cells [PDF]

open access: yes, 2002
Expression of the gene for the macrophage colony stimulating factor receptor (CSF-1R), c-fms, has been viewed as a hallmark of the commitment of multipotent precursor cells to macrophages.
Bonifer, Constanze   +29 more
core   +1 more source

Structural basis of cyclobutane pyrimidine dimer recognition by UV-DDB in the nucleosome

open access: yesNature Communications
In mammalian global genomic nucleotide excision repair, UV-DDB plays a central role in recognizing DNA lesions, such as 6-4 photoproducts and cyclobutane pyrimidine dimers, within chromatin.
Syota Matsumoto   +10 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Structural basis of RNAPII transcription on the nucleosome containing histone variant H2A.B

open access: yesThe EMBO Journal
H2A.B is a distant histone H2A variant associated with actively transcribed regions of the genome, suggesting its positive role in promoting transcription.
Munetaka Akatsu   +7 more
doaj   +1 more source

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