1,077 results found
    1. Cell Biology
    2. Chromosomes and Gene Expression

    A TORC1-histone axis regulates chromatin organisation and non-canonical induction of autophagy to ameliorate ageing

    Yu-Xuan Lu, Jennifer C Regan ... Linda Partridge
    Modulation of histone levels in gut enterocytes by rapamycin treatment alters chromatin organisation and induces intestinal autophagy through transcriptional regulation to prevent age-related decline in the intestine and extend lifespan.
    1. Physics of Living Systems

    How enzymatic activity is involved in chromatin organization

    Rakesh Das, Takahiro Sakaue ... Tetsuya Hiraiwa
    Computer simulations considering actions of the intranuclear enzyme, Topoisomerase-II, in a mechanistic scheme elucidated a capability of enzymes to contribute to controlling chromatin spatial organizations and discovered new characteristic features in eu- and heterochromatin organization caused by the enzymatic activity.
    1. Genetics and Genomics
    2. Neuroscience

    Reorganization of postmitotic neuronal chromatin accessibility for maturation of serotonergic identity

    Xinrui L Zhang, William C Spencer ... Evan S Deneris
    Terminal selectors reorganize postmitotic neuronal chromatin to select cis-regulatory elements during 5-HT neuron maturation.
    1. Physics of Living Systems

    Mesoscale phase separation of chromatin in the nucleus

    Gaurav Bajpai, Daria Amiad Pavlov ... Samuel Safran
    Computer simulations show transitions between novel types of chromatin organization (peripheral, central, conventional) depending on chromatin interactions with itself, the lamin and nuclear hydration, measured in recent experiments.
    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.
    1. Structural Biology and Molecular Biophysics

    Explicit ion modeling predicts physicochemical interactions for chromatin organization

    Xingcheng Lin, Bin Zhang
    The physicochemical interactions among wild-type nucleosomes hold substantial significance and play a role in chromatin folding under physiological salt concentrations.
    1. Chromosomes and Gene Expression
    2. Physics of Living Systems

    Chromosome organization by one-sided and two-sided loop extrusion

    Edward J Banigan, Aafke A van den Berg ... Leonid A Mirny
    Seemingly contradictory findings of single-molecule and in vivo experiments on a major mechanism of chromosome organization are reconciled by computationally investigating mechanisms of loop extrusion that are consistent with both.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Transcription factor MITF and remodeller BRG1 define chromatin organisation at regulatory elements in melanoma cells

    Patrick Laurette, Thomas Strub ... Irwin Davidson
    The PBAF chromatin-remodelling complex is essential for the proliferation of melanocytes and melanoma cells and is recruited to critical regulatory elements by physical and functional interactions with MITF, a transcription factor and master regulator of melanoma.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Synthetic analysis of chromatin tracing and live-cell imaging indicates pervasive spatial coupling between genes

    Christopher H Bohrer, Daniel R Larson
    The physical distance between genes in individual cells is the major factor driving co-transcriptional bursts, showing a significant degree of correlation for distances below 400 nm.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    CTCF and cohesin regulate chromatin loop stability with distinct dynamics

    Anders S Hansen, Iryna Pustova ... Xavier Darzacq
    Single-molecule imaging of CTCF and cohesin in live cells suggests that chromatin loops are dynamic structures that frequently form and fall apart.

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