Results 281 to 290 of about 64,059 (299)
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Remodeling and Repositioning of Nucleosomes in Nucleosomal Arrays
2018ATP-dependent nucleosome remodeling factors sculpt the nucleosomal landscape of eukaryotic chromatin. They deposit or evict nucleosomes or reposition them along DNA in a process termed nucleosome sliding. Remodeling has traditionally been analyzed using mononucleosomes as a model substrate.
Felix Mueller-Planitz +5 more
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Phylogenomics of the nucleosome
Nature Structural & Molecular Biology, 2003Histones are best known as the architectural proteins that package the DNA of eukaryotic organisms, forming octameric nucleosome cores that the double helix wraps tightly around. Although histones have traditionally been viewed as slowly evolving scaffold proteins that lack diversification beyond their abundant tail modifications, recent studies have ...
Steven Henikoff, Harmit S. Malik
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Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1978
Electron microscopic and biochemical results are presented supporting the following conclusions: (1) Two molecules of each histone H2A, H2B, H3 and H4 are necessary and sufficient to form a nucleosome with a diameter of 12.5± 1 nm and containing about 200 base pairs of DNA.
P, Oudet +4 more
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Electron microscopic and biochemical results are presented supporting the following conclusions: (1) Two molecules of each histone H2A, H2B, H3 and H4 are necessary and sufficient to form a nucleosome with a diameter of 12.5± 1 nm and containing about 200 base pairs of DNA.
P, Oudet +4 more
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Nature, 1980
Histones and DNA can spontaneously associate to form the nucleosome subunits of eukaryotic chromatin, but two proteins which occur in the eukaryotic nucleus can facilitate nucleosome assembly and greatly extend the conditions which permit assembly to occur.
R A, Laskey, W C, Earnshaw
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Histones and DNA can spontaneously associate to form the nucleosome subunits of eukaryotic chromatin, but two proteins which occur in the eukaryotic nucleus can facilitate nucleosome assembly and greatly extend the conditions which permit assembly to occur.
R A, Laskey, W C, Earnshaw
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Biochemical Society Symposia, 2006
In the 30 years since the discovery of the nucleosome, our picture of it has come into sharp focus. The recent high-resolution structures have provided a wealth of insight into the function of the nucleosome, but they are inherently static. Our current knowledge of how nucleosomes can be reconfigured dynamically is at a much earlier stage. Here, recent
Chris, Stockdale +7 more
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In the 30 years since the discovery of the nucleosome, our picture of it has come into sharp focus. The recent high-resolution structures have provided a wealth of insight into the function of the nucleosome, but they are inherently static. Our current knowledge of how nucleosomes can be reconfigured dynamically is at a much earlier stage. Here, recent
Chris, Stockdale +7 more
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Chromosome Research, 2006
It is now widely recognized that the packaging of genomic DNA together with core histones, linker histones, and other functional proteins into chromatin profoundly influences nuclear processes such as transcription, replication, repair and recombination. How chromatin structure modulates the expression and maintenance of knowledge encoded in eukaryotic
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It is now widely recognized that the packaging of genomic DNA together with core histones, linker histones, and other functional proteins into chromatin profoundly influences nuclear processes such as transcription, replication, repair and recombination. How chromatin structure modulates the expression and maintenance of knowledge encoded in eukaryotic
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Nature Reviews Genetics, 2018
Two new studies in Nature provide insight into the role of nucleosomes in gene regulation. One describes the genome-wide organization of nucleosomes and the other details how transcription factor binding to DNA is affected by the presence of nucleosomes.
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Two new studies in Nature provide insight into the role of nucleosomes in gene regulation. One describes the genome-wide organization of nucleosomes and the other details how transcription factor binding to DNA is affected by the presence of nucleosomes.
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Science, 2017
Structural Biology In eukaryotic cells, genomic DNA must be compacted to fit inside the nucleus. A key player in DNA packaging is the nucleosome, which comprises a segment of DNA wrapped around an octamer of histone proteins. During replication and transcription, nucleosomes must reposition themselves on the DNA.
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Structural Biology In eukaryotic cells, genomic DNA must be compacted to fit inside the nucleus. A key player in DNA packaging is the nucleosome, which comprises a segment of DNA wrapped around an octamer of histone proteins. During replication and transcription, nucleosomes must reposition themselves on the DNA.
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Clinica Chimica Acta, 2006
The nucleosome is a large protein-nucleic acid complex involved in DNA packing and in controlling genetic information. Under circumstances described below, this component, normally sequestered in the cell nucleus, is released into the extracellular milieu and then is easily accessible to cells of the immune system.
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The nucleosome is a large protein-nucleic acid complex involved in DNA packing and in controlling genetic information. Under circumstances described below, this component, normally sequestered in the cell nucleus, is released into the extracellular milieu and then is easily accessible to cells of the immune system.
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Upstream nucleosomes and Rgr1p are required for nucleosomal repression of transcription
Molecular Microbiology, 2000The mechanisms of transcription repression and derepressionin vivoare not fully understood. We have obtained evidence that begins to clarify the minimum requirements for counteracting nucleosomal repressionin vivo. Location of the TATA element near the nucleosome dyad does not block RNA polymerase II transcriptionin vivoif there is a nucleosome‐free ...
Paul J. Laybourn, David R. Moss
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