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Nucleosome positioning is not only related to genomic DNA compaction but also to other biological functions. After the chromatin is digested by micrococcal nuclease, nucleosomal (nucleosome-bound) DNA fragments can be sequenced and mapped on the genomic DNA sequence.
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Nucleosomes in serum as a marker for cell death [PDF]
The concentration of nucleosomes is elevated in blood of patients with diseases which are associated with enhanced cell death. In order to detect these circulating nucleosomes, we used the Cell Death Detection-ELISA(Plus) (CDDE) from Roche Diagnostics ...
Anker P+15 more
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Nucleosomes in pancreatic cancer patients during radiochemotherapy [PDF]
Nucleosomes appear spontaneously in elevated concentrations in the serum of patients with malignant diseases as well as during chemo- and radiotherapy. We analyzed whether their kinetics show typical characteristics during radiochemotherapy and enable an
Amoura Z+19 more
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High-resolution and high-accuracy topographic and transcriptional maps of the nucleosome barrier. [PDF]
Nucleosomes represent mechanical and energetic barriers that RNA Polymerase II (Pol II) must overcome during transcription. A high-resolution description of the barrier topography, its modulation by epigenetic modifications, and their effects on Pol II ...
Brown, Aidan I+9 more
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Nucleosomes and neutrophil extracellular traps in septic and burn patients [PDF]
NETosis is a host defense mechanism associated with inflammation and tissue damage. Experimental models show that platelets and von Willebrand factor (VWF) are key elements for intravascular NETosis. We determined NETosis in septic and burn patients at 1
Carestia, Agostina+8 more
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Structural characterization of H3K56Q nucleosomes and nucleosomal arrays [PDF]
The post-translational modification of histones is a key mechanism for the modulation of DNA accessibility. Acetylated lysine 56 in histone H3 is associated with nucleosome assembly during replication and DNA repair, and is thus likely to predominate in regions of chromatin containing nucleosome-free regions.
Karolin Luger+7 more
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DNA folding: structural and mechanical properties of the two-angle model for chromatin [PDF]
We present a theoretical analysis of the structural and mechanical properties of the 30-nm chromatin fiber. Our study is based on the two-angle model introduced by Woodcock et al. (Woodcock, C. L., S. A. Grigoryev, R. A. Horowitz, and N. Whitaker.
Bednar+39 more
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Nucleosome packaging and nucleosome positioning of genomic DNA [PDF]
The goals of this study were to assess the extent to which bulk genomic DNA sequences contribute to their own packaging in nucleosomes and to reveal the relationship between nucleosome packaging and positioning. Using a competitive nucleosome reconstitution assay, we found that at least 95% of bulk DNA sequences have an affinity for ...
J. Widom, P. T. Lowary
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The Snf2 Homolog Fun30 acts as a homodimeric ATP-dependent chromatin-remodeling enzyme [PDF]
The Saccharomyces cerevisiae Fun30 (Function unknown now 30) protein shares homology with an extended family of Snf2-related ATPases. Here we report the purification of Fun30 principally as a homodimer with a molecular mass of about 250 kDa.
Adra+43 more
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In order to form a covalent complex with DNA inside human cells, cisplatin has to overcome the protective environment of a nucleosome, where DNA is complexed with histone proteins. Todd and Lippard (2010) expand our understanding of this process by describing the structure of a nucleosome containing a Pt-DNA adduct, which has important implications for
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