Results 11 to 20 of about 61,334 (223)
Stochastic epigenetic dynamics of gene switching [PDF]
Phys. Rev. E 102, 042408 (2020), 2020 Epigenetic modifications of histones crucially affect the eukaryotic gene activity, while the epigenetic histone state is largely determined by the binding of specific factors such as the transcription factors (TFs) to DNA. Here, the way how the TFs and the histone state are dynamically correlated is not obvious when the TF synthesis is regulated by ...
arxiv +1 more source
Peeling and Sliding in Nucleosome Repositioning [PDF]
Phys. Rev. Lett., 99, 058105, (2007), 2007 We investigate the mechanisms of histone sliding and detachment with a stochastic model that couples thermally-induced, passive histone sliding with active motor-driven histone unwrapping. Analysis of a passive loop or twist defect-mediated histone sliding mechanism shows that diffusional sliding is enhanced as larger portions of the DNA is peeled off ...
arxiv +1 more source
Frontiers in Genetics, 2021 A DNA double-strand break (DSB) takes place in the context of chromatin, and there is increasing evidence for chromatin structure to play a functional role in DSB signaling and repair.
Jieqiong Lou +7 more
doaj +1 more source
LPS-Challenged Macrophages Release Microvesicles Coated With Histones
Frontiers in Immunology, 2018 Histones are the protein component of nucleosomes, which are the basic packing unit of chromatin. However, histones are also found in the blood, both as components of nucleosomes leaked out from dead cells, or expelled from neutrophils in the active ...
Rohini Ravindran Nair +5 more
doaj +1 more source
Nucleosome sliding can influence the spreading of histone modifications [PDF]
, 2021 Nucleosomes are the fundamental building blocks of chromatin that not only help in the folding of chromatin but also in carrying epigenetic information. It is known that nucleosome sliding is responsible for dynamically organizing chromatin structure and the resulting gene regulation.
arxiv +1 more source
A novel role for lipid droplets in the organismal antibacterial response
eLife, 2012 We previously discovered histones bound to cytosolic lipid droplets (LDs); here we show that this forms a cellular antibacterial defense system. Sequestered on droplets under normal conditions, in the presence of bacterial lipopolysaccharide (LPS) or ...
Preetha Anand +10 more
doaj +1 more source
A length-dynamic Tonks gas theory of histone isotherms [PDF]
Europhysics Letters, 62, 753-759, (2003), 2002 We find exact solutions to a new one-dimensional (1D) interacting particle theory and apply the results to the adsorption and wrapping of polymers (such as DNA) around protein particles (such as histones). Each adsorbed protein is represented by a Tonks gas particle.
arxiv +1 more source
Primary extranodal diffuse large B‐cell lymphoma: Molecular features, treatment, and prognosis
Aging and Cancer, Volume 3, Issue 3-4, Page 133-146, September-December 2022., 2022 One‐third of DLBCL arises from extranodal organs and is challenging to manage. Molecular features are critical to elucidate the differences in clinical features, predict the disease prognosis, and improve effective targeted therapeutic strategies. Abstract Diffuse large B‐cell lymphoma (DLBCL) is the most common subtype of non‐Hodgkin's lymphoma and ...
Si‐Yuan Chen +3 more
wiley +1 more source
Frontiers in Neuroscience, 2022 The contribution of histone mark redistribution to the age-induced decline of endogenous neuroprotection remains unclear. In this study, we used an intracerebral hemorrhage (ICH)-induced acute brain injury rat model to study the transcriptional and ...
Qin Zhang +14 more
doaj +1 more source
Recombinant Thrombomodulin Suppresses Histone-Induced Neutrophil Extracellular Trap Formation
Frontiers in Immunology, 2019 Histones, the major protein components of chromatin, are released into the extracellular space during sepsis, trauma, and ischemia-reperfusion injury, and subsequently mediate organ failure.
Binita Shrestha +8 more
doaj +1 more source