355 results found
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Specialization of the chromatin remodeler RSC to mobilize partially-unwrapped nucleosomes

    Alisha Schlichter, Margaret M Kasten ... Bradley R Cairns
    A SWI/SNF-family chromatin remodeling subcomplex from yeast is identified (RSC1) that is specialized to slide nucleosomes residing on DNA sequences that confer partial nucleosome unwrapping, with assistance from accessory factors.
    1. Chromosomes and Gene Expression

    The chromatin remodelers RSC and ISW1 display functional and chromatin-based promoter antagonism

    Timothy J Parnell, Alisha Schlichter ... Bradley R Cairns
    A combination of genetics, expression, genomic localization, and genomic nucleosome profiling demonstrates antagonism between two chromatin remodelers that reveal different mechanisms at different promoter architectures.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Dynamic 1D search and processive nucleosome translocations by RSC and ISW2 chromatin remodelers

    Jee Min Kim, Claudia C Carcamo ... Carl Wu
    Single-particle imaging of RSC and ISW2 chromatin remodelers on DNA stretched between dual optical tweezers reveals distinctive 1D diffusion and opposing push–pull nucleosome translocation on engagement with sparse nucleosome arrays.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    ATP binding facilitates target search of SWR1 chromatin remodeler by promoting one-dimensional diffusion on DNA

    Claudia C Carcamo, Matthew F Poyton ... Taekjip Ha
    In vitro single-particle tracking reveals that ATP binding increases the one-dimensional diffusion of yeast chromatin remodeler SWR1 on DNA stretched between optical tweezers and diffusion is confined by protein roadblocks and nucleosomes.
    1. Stem Cells and Regenerative Medicine
    2. Chromosomes and Gene Expression

    The pioneer factor OCT4 requires the chromatin remodeller BRG1 to support gene regulatory element function in mouse embryonic stem cells

    Hamish W King, Robert J Klose
    The chromatin remodeller BRG1 is recruited to pluripotency-associated gene regulatory elements by the pioneer transcription factor OCT4 to support further transcription factor binding and gene regulation.
    1. Chromosomes and Gene Expression

    The nucleosomal barrier to promoter escape by RNA polymerase II is overcome by the chromatin remodeler Chd1

    Peter J Skene, Aaron E Hernandez ... Steven Henikoff
    The ATP-dependent chromatin remodeler Chd1 controls nucleosome turnover to allow RNA Polymerase to transcribe in vivo.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Nucleosome-CHD4 chromatin remodeler structure maps human disease mutations

    Lucas Farnung, Moritz Ochmann, Patrick Cramer
    The structure of the chromatin remodeller CHD4 bound to a nucleosome reveals differences to the known Chd1-nucleosome complex and maps cancer mutations.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    The nucleosomal acidic patch relieves auto-inhibition by the ISWI remodeler SNF2h

    Nathan Gamarra, Stephanie L Johnson ... Geeta J Narlikar
    Auto-inhibition of ISWI-family ATP-dependent chromatin remodelers is relieved by a conserved feature of the nucleosome.
    1. Chromosomes and Gene Expression

    Asymmetry between the two acidic patches dictates the direction of nucleosome sliding by the ISWI chromatin remodeler

    Robert F Levendosky, Gregory D Bowman
    Unlike Chd1, ISWI remodelers preferentially shift asymmetric nucleosomes toward the side possessing a wild type acidic patch, regardless of DNA lengths flanking the nucleosome.
    1. Chromosomes and Gene Expression

    Single-molecule imaging of chromatin remodelers reveals role of ATPase in promoting fast kinetics of target search and dissociation from chromatin

    Jee Min Kim, Pat Visanpattanasin ... Carl Wu
    Chromatin remodeling enzymes perform target search by utilizing ATP-binding and hydrolysis to facilitate 1D-diffusion on and rapid detachment from chromatin in living yeast.

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