Results 61 to 70 of about 574,116 (318)

Epithelial cells maintain memory of prior infection with Streptococcus pneumoniae through di-methylation of histone H3

Nature Communications
Epithelial cells are the first point of contact for bacteria entering the respiratory tract. Streptococcus pneumoniae is an obligate human pathobiont of the nasal mucosa, carried asymptomatically but also the cause of severe pneumoniae.
Christine Chevalier, Claudia Chica, Justine Matheau, Adrien Pain, Michael G. Connor, Melanie A. Hamon   +5 more
doaj   +1 more source

Modulation of the functional interfaces between retroviral intasomes and the human nucleosome

mBio, 2023
Infection by retroviruses as HIV-1 requires the stable integration of their genome into the host cells. This process needs the formation of integrase (IN)-viral DNA complexes, called intasomes, and their interaction with the target DNA wrapped around ...
E. Mauro, D. Lapaillerie, C. Tumiotto, C. Charlier, F. Martins, S. F. Sousa, M. Métifiot, P. Weigel, K. Yamatsugu, M. Kanai, H. Munier-Lehmann, C. Richetta, M. Maisch, J. Dutrieux, J. Batisse, M. Ruff, O. Delelis, P. Lesbats, V. Parissi   +18 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Studies toward in vitro reconstitution of plant chromatin [PDF]

, 2009
To study the relation between chromatin structure and DNA function in detail it is necessary to have an in vitro procedure for assembling nucleosomes on a naked DNA template with properties similar to native chromatin.
NC DOCKS at Western Carolina University, Martinez, Nicholas   +1 more
core  

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

Tumorigenic Cell Reprogramming and Cancer Plasticity: Interplay between Signaling, Microenvironment, and Epigenetics

Stem Cells International, 2018
Accumulating evidences indicate that many tumors rely on subpopulations of cancer stem cells (CSCs) with the ability to propagate malignant clones indefinitely and to produce an overt cancer.
Vittoria Poli, Luca Fagnocchi, Alessio Zippo   +2 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Chromatin accessibility dynamics of Chlamydia-infected epithelial cells. [PDF]

, 2020
Chlamydia are Gram-negative, obligate intracellular bacterial pathogens responsible for a broad spectrum of human and animal diseases. In humans, Chlamydia trachomatis is the most prevalent bacterial sexually transmitted infection worldwide and is the ...
Hayward RJ, Marsh JW, Humphrys MS, Myers GSA, Huston WM   +4 more
core   +1 more source

DDK/Hsk1 phosphorylates and targets fission yeast histone deacetylase Hst4 for degradation to stabilize stalled DNA replication forks

eLife, 2021
In eukaryotes, paused replication forks are prone to collapse, which leads to genomic instability, a hallmark of cancer. Dbf4-dependent kinase (DDK)/Hsk1Cdc7 is a conserved replication initiator kinase with conflicting roles in replication stress ...
Shalini Aricthota, Devyani Haldar
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source