Results 81 to 90 of about 64,059 (299)
A Model of Epigenetic Inheritance Accounts for Unexpected Adaptation to Unforeseen Challenges
Advanced Science, EarlyView.A general model of inheriting changes that are acquired during the lifetime of individuals demonstrates tremendous benefits to the population, including escape from extinction in changing environments. Contrasting the model with experimental data shows that inheritance of acquired changes enables rapid adaptation to unforeseen challenges, and accounts ...
Dino Osmanović +2 more
wiley +1 more source
Diversity of eukaryotic DNA replication origins revealed by genome-wide analysis of chromatin structure. [PDF]
PLoS Genetics, 2010 Eukaryotic DNA replication origins differ both in their efficiency and in the characteristic time during S phase when they become active. The biological basis for these differences remains unknown, but they could be a consequence of chromatin structure ...
Nicolas M Berbenetz +2 more
doaj +1 more source
Statistical Mechanics of Nucleosomes Constrained by Higher-Order Chromatin Structure [PDF]
, 2010 Eukaryotic DNA is packaged into chromatin: one-dimensional arrays of nucleosomes separated by stretches of linker DNA are folded into 30-nm chromatin fibers which in turn form higher-order structures. Each nucleosome, the fundamental unit of chromatin, has 147 base pairs of DNA wrapped around a histone octamer.
arxiv +1 more source
Nucleosome Positioning with Set of Key Positions and Nucleosome Affinity [PDF]
The Open Biomedical Engineering Journal, 2014 The formation and precise positioning of nucleosome in chromatin occupies a very important role in studying life process. Today, there are many researchers who discovered that the positioning where the location of a DNA sequence fragment wraps around a histone octamer in genome is not random but regular.
Jia Wang, Shuai Liu, Weina Fu
openaire +3 more sources
Advanced Science, EarlyView.This study shows that the classical secretory protein S100 calcium‐binding protein A9 (S100A9) can translocate to the nucleus upon de‐phosphorylation at Thr 113 in human amnion fibroblasts at parturition, where S100A9 induces heterochromatin erosion through segregation of the heterochromatin maintenance protein, resulting inLong Interspersed Nuclear ...
Fan Zhang +8 more
wiley +1 more source
The Nucleosome Remodeling Factor [PDF]
FEBS Letters, 2011 An essential component of the chromatin remodeling machinery is NURF (Nucleosome Remodeling Factor), the founding member of the ISWI family of chromatin remodeling complexes. In vertebrates and invertebrates alike, NURF has many important functions in chromatin biology including regulating transcription, establishing boundary elements, and promoting ...
Joseph W. Landry, Suehyb G. Alkhatib
openaire +3 more sources
Mitofusin 1 Drives Preimplantation Development by Enhancing Chromatin Incorporation of Histone H3.3
Advanced Science, EarlyView.MFN1 exerts its function partially through histone H3.3 in early embryos. MFN1 colocalizes with PADI6, and its deficiency results in compromised cytoplasmic lattices and ribosomal subunits, leading to declined H3.3 protein level. This, in turn, hinders the incorporation of H3.3 into the embryonic genome, thereby causing failure of male pronucleus ...
Xiao‐yan Shi +9 more
wiley +1 more source
Nucleosomes in gene regulation: theoretical approaches [PDF]
Molecular Biology, 2012, Vol. 46, No. 1, pp. 1--10, 2012 This work reviews current theoretical approaches of biophysics and bioinformatics for the description of nucleosome arrangements in chromatin and transcription factor binding to nucleosomal organized DNA. The role of nucleosomes in gene regulation is discussed from molecular-mechanistic and biological point of view. In addition to classical problems of
arxiv +1 more source
ISWI catalyzes nucleosome sliding in condensed nucleosome arrays
Nature Structural & Molecular Biology, 2023 SummaryHow chromatin enzymes work in condensed chromatin and how they maintain diffusional mobility inside remains unexplored. We investigated these challenges using theDrosophilaISWI remodeling ATPase, which slides nucleosomes along DNA. Folding of chromatin fibers did not affect slidingin vitro. Catalytic rates were also comparable in- and outside of
Petra Vizjak +10 more
openaire +3 more sources
Advanced Science, EarlyView.Inspired by exercise‐induced metabolic rewiring and EV secretion, this study shows that in vivo metabolic engineering strategy can reprogram EV secretion pattern and simultaneously attenuate multiple tissue injury in CKD status, highlighting that it is a potential strategy for treating diverse chronic diseases.
Meng Zhao +11 more
wiley +1 more source