Search Results - "Widom, Jonathan"
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Poly(dA:dT) tracts: major determinants of nucleosome organization
Published in Current opinion in structural biology (01-02-2009)“…Homopolymeric stretches of deoxyadenosine nucleotides (A's) on one strand of double-stranded DNA, referred to as poly(dA:dT) tracts or A-tracts, are…”
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A map of nucleosome positions in yeast at base-pair resolution
Published in Nature (London) (28-06-2012)“…The exact positions of nucleosomes along genomic DNA can influence many aspects of chromosome function. However, existing methods for mapping nucleosomes do…”
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Dynamics of Nucleosome Invasion by DNA Binding Proteins
Published in Journal of molecular biology (12-08-2011)“…Nucleosomes sterically occlude their wrapped DNA from interacting with many large protein complexes. How proteins gain access to nucleosomal DNA target sites…”
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Controls of nucleosome positioning in the human genome
Published in PLoS genetics (01-11-2012)“…Nucleosomes are important for gene regulation because their arrangement on the genome can control which proteins bind to DNA. Currently, few human nucleosomes…”
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Single-cell nucleosome mapping reveals the molecular basis of gene expression heterogeneity
Published in Proceedings of the National Academy of Sciences - PNAS (17-06-2014)“…Nucleosomes, the basic unit of chromatin, have a critical role in the control of gene expression. Nucleosome positions have generally been determined by…”
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Predicting nucleosome positioning using a duration Hidden Markov Model
Published in BMC bioinformatics (24-06-2010)“…The nucleosome is the fundamental packing unit of DNAs in eukaryotic cells. Its detailed positioning on the genome is closely related to chromosome functions…”
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Distinct modes of regulation by chromatin encoded through nucleosome positioning signals
Published in PLoS computational biology (01-11-2008)“…The detailed positions of nucleosomes profoundly impact gene regulation and are partly encoded by the genomic DNA sequence. However, less is known about the…”
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Dynamics and function of compact nucleosome arrays
Published in Nature structural & molecular biology (01-09-2009)“…Nucleosomes can interfere with DNA binding by factors, but previous work showed that protein-binding sites on a single nucleosome are accessible. Dynamics in…”
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Chemical map of Schizosaccharomyces pombe reveals species-specific features in nucleosome positioning
Published in Proceedings of the National Academy of Sciences - PNAS (10-12-2013)“…Using a recently developed chemical approach, we have generated a genome-wide map of nucleosomes in vivo in Schizosaccharomyces pombe (S. pombe) at base pair…”
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High flexibility of DNA on short length scales probed by atomic force microscopy
Published in Nature nanotechnology (01-11-2006)“…The mechanics of DNA bending on intermediate length scales (5-100 nm) plays a key role in many cellular processes, and is also important in the fabrication of…”
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H2A.Z-mediated localization of genes at the nuclear periphery confers epigenetic memory of previous transcriptional state
Published in PLoS biology (01-04-2007)“…Many genes are recruited to the nuclear periphery upon transcriptional activation. The mechanism and functional significance of this recruitment is unclear. We…”
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Structural Constraints in Collaborative Competition of Transcription Factors against the Nucleosome
Published in Journal of molecular biology (30-09-2011)“…Cooperativity in transcription factor (TF) binding is essential in eukaryotic gene regulation and arises through diverse mechanisms. Here, we focus on one…”
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Using DNA mechanics to predict in vitro nucleosome positions and formation energies
Published in Nucleic acids research (01-08-2009)“…In eukaryotic genomes, nucleosomes function to compact DNA and to regulate access to it both by simple physical occlusion and by providing the substrate for…”
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High nucleosome occupancy is encoded at human regulatory sequences
Published in PloS one (09-02-2010)“…Active eukaryotic regulatory sites are characterized by open chromatin, and yeast promoters and transcription factor binding sites (TFBSs) typically have low…”
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Gene expression divergence in yeast is coupled to evolution of DNA-encoded nucleosome organization
Published in Nature genetics (01-04-2009)“…Eran Segal and colleagues report that promoters driving expression of cellular respiration genes in aerobic yeast species encode relatively open chromatin,…”
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The budding yeast Centromere DNA Element II wraps a stable Cse4 hemisome in either orientation in vivo
Published in eLife (15-04-2014)“…In budding yeast, a single cenH3 (Cse4) nucleosome occupies the ∼120-bp functional centromere, however conflicting structural models for the particle have been…”
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Archaeal nucleosome positioning in vivo and in vitro is directed by primary sequence motifs
Published in BMC genomics (10-06-2013)“…Histone wrapping of DNA into nucleosomes almost certainly evolved in the Archaea, and predates Eukaryotes. In Eukaryotes, nucleosome positioning plays a…”
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Biological consequences of tightly bent DNA: The other life of a macromolecular celebrity
Published in Biopolymers (05-02-2007)“…The mechanical properties of DNA play a critical role in many biological functions. For example, DNA packing in viruses involves confining the viral genome in…”
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Collaborative Competition Mechanism for Gene Activation In Vivo
Published in Molecular and Cellular Biology (01-03-2003)“…Article Usage Stats Services MCB Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley…”
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Differential Nucleosome Occupancies across Oct4-Sox2 Binding Sites in Murine Embryonic Stem Cells
Published in PloS one (18-05-2015)“…The binding sequence for any transcription factor can be found millions of times within a genome, yet only a small fraction of these sequences encode…”
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