Results 31 to 40 of about 7,699,681 (297)

Histone methylation by PRC2 is inhibited by active chromatin marks [PDF]

, 2013
Chromatin modifiers serve as regulatory switches that control the cell cycle, maintain pluripotency and drive differentiation and development. Positive feedback mechanisms help to pass on transcriptional information from one generation of cells to the ...
Schmitges, Frank W.
core   +1 more source

Structural basis of nucleosome remodeling by Cockayne syndrome B homologue Komagataella phaffii Rad26

Nature Communications
Rad26, a yeast homologue of mammalian Cockayne syndrome protein B (CSB), plays an essential role in transcription-coupled nucleotide excision repair (TC-NER).
Yutaro Fukushima, Chiaki Kinoshita, Lumi Negishi, Tomoya Kujirai, Yuki Kobayashi, Mitsuo Ogasawara, Haruhiko Ehara, Shun-ichi Sekine, Wataru Kagawa, Hitoshi Kurumizaka, Yoshimasa Takizawa   +10 more
doaj   +1 more source

Kinetic control of eukaryotic chromatin structure by recursive topological restraints [PDF]

, 2008
Chromatin structure undergoes many changes during the cell cycle and in response to regulatory events. A basic unit of chromatin organization is the nucleosome core particle.
Dominika Borek, Zbyszek Otwinowski
core  

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

, 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, Singh, Vijender, Owen-Hughes, Tom; id_orcid, Martin, David; id_orcid, David Martin, Ramasubramanian Sundaramoorthy, Vijender Singh, Sundaramoorthy, Ramasubramanian, Ryan, Daniel P., Tom Owen-Hughes   +9 more
core   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source

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

Nature 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, Yoshimasa Takizawa, Mitsuo Ogasawara, Kana Hashimoto, Lumi Negishi, Wenjie Xu, Haruna Tachibana, Junpei Yamamoto, Shigenori Iwai, Kaoru Sugasawa, Hitoshi Kurumizaka   +10 more
doaj   +1 more source

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

Nature 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, Hiroaki Tachiwana, Hiroki Takagi, Tetsuya Hori, Hiroshi Kimura, Tatsuo Fukagawa, Hitoshi Kurumizaka   +6 more
doaj   +1 more source

Probing the (H3-H4)(2) histone tetramer structure using pulsed EPR spectroscopy combined with site-directed spin labelling [PDF]

, 2009
The (H3-H4)(2) histone tetramer forms the central core of nucleosomes and, as such, plays a prominent role in assembly, disassembly and positioning of nucleosomes.
Ward, Richard, Owen-Hughes, Tom; id_orcid, Norman, David G., Bowman, Andrew, El-Mkami, Hassane, Bowman, A., Owen-Hughes, Tom, El-Mkami, Hassane; id_orcid   +7 more
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Cryo-EM structures of CENP-A nucleosomes isolated from human cells

Communications Biology
Centromeres ensure accurate chromosome segregation, and their identity is specified epigenetically by the histone H3 variant CENP-A. Although the structures of reconstituted CENP-A nucleosomes have provided important insights, how this epigenetic mark is
Eisho Tanida, Suguru Hatazawa, Takumi Oishi, Yuki Kobayashi, Mitsuo Ogasawara, Marta A. Jaskiewicz, Akihito Harada, Takeru Fujii, Yasuyuki Ohkawa, Yoshimasa Takizawa, Hitoshi Kurumizaka   +10 more
doaj   +1 more source