758 results found
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Structure of the chromatin remodelling enzyme Chd1 bound to a ubiquitinylated nucleosome

    Ramasubramanian Sundaramoorthy, Amanda L Hughes ... Tom Owen-Hughes
    The unwrapping two turns of DNA on Chd1-bound nucleosomes cause the histone H3 tail and ubiquitin to be re-positioned.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    A computational approach to map nucleosome positions and alternative chromatin states with base pair resolution

    Xu Zhou, Alexander W Blocker ... Erin K O'Shea
    Computational analysis of MNase-seq data reveals that alternatively positioned nucleosomes are prevalent in both yeast and human cells and create significant heterogeneity within cell populations.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Heterochromatin assembly by interrupted Sir3 bridges across neighboring nucleosomes

    Reza Behrouzi, Chenning Lu ... Danesh Moazed
    Cooperative association of a histone-binding complex with pairs of appropriately modified nucleosomes, which form fundamental units of binding, mediates selective heterochromatin assembly and spreading.
    1. Chromosomes and Gene Expression

    Nucleosomes impede Cas9 access to DNA in vivo and in vitro

    Max A Horlbeck, Lea B Witkowsky ... Jonathan S Weissman
    Nucleosomes provide a direct and profound block to the activity of the CRISPR effector protein Cas9, suggesting future sophisticated design rules for CRISPR targeting.
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    1. Chromosomes and Gene Expression
    2. Plant Biology

    DDM1 and Lsh remodelers allow methylation of DNA wrapped in nucleosomes

    David B Lyons, Daniel Zilberman
    Nucleosomes and linker histones block eukaryotic cytosine methylation.
    1. Chromosomes and Gene Expression

    CTCF confers local nucleosome resiliency after DNA replication and during mitosis

    Nick Owens, Thaleia Papadopoulou ... Pablo Navarro
    In contrast to other transcription factors, CTCF and Esrrb rapidly regain binding after replication and remain bound to their targets during mitosis, preserving local nucleosome organization throughout the cell cycle.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Nucleosome conformation dictates the histone code

    Matthew R Marunde, Harrison A Fuchs ... Catherine A Musselman
    NMR spectroscopy, dCypher assays, and CUT&RUN demonstrate that occlusion of the histone tails in the nucleosome context alters histone PTM specificity for a tandem of reader domains.
    1. Computational and Systems Biology

    Detection of new pioneer transcription factors as cell-type-specific nucleosome binders

    Yunhui Peng, Wei Song ... Anna R Panchenko
    A computational method has been developed for predicting the cell-type-specific binding of transcription factors to nucleosomes, and involves integration of ChIP-seq, MNase-seq, and DNase-seq data with details of nucleosome structure.
    1. Structural Biology and Molecular Biophysics

    High-resolution and high-accuracy topographic and transcriptional maps of the nucleosome barrier

    Zhijie Chen, Ronen Gabizon ... Carlos Bustamante
    Direct observation of RNA Polymerase II transcription through a single nucleosome at near basepair resolution suggests a mechanism for selective control of gene expression.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Structural reorganization of the chromatin remodeling enzyme Chd1 upon engagement with nucleosomes

    Ramasubramanian Sundaramoorthy, Amanda L Hughes ... Tom Owen-Hughes
    Structural models of the chromatin remodeling enzyme Chd1 in solution and when bound to chromatin indicate that conformational changes to both the enzyme and the nucleosome occur upon nucleotide dependent engagement.

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