499 results found
    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

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

    Timothy J Parnell et al.
    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. 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. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    The Chd1 chromatin remodeler shifts hexasomes unidirectionally

    Robert F Levendosky et al.
    Oriented hexasomes can be generated using the Widom 601 positioning sequence, which enables straightforward production of nucleosomes with asymmetrically modified H2A/H2B dimers.
    1. Structural Biology and Molecular Biophysics

    Crystal structure of the full Swi2/Snf2 remodeler Mot1 in the resting state

    Agata Butryn et al.
    The structure of the entire Mot1 Swi2/Snf2 protein uncovers an unexpected auto-inhibited resting state activated by substrate binding, and suggests a DNA pulling mechanism of TBP displacement.
    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 et al.
    The ATP-dependent chromatin remodeler Chd1 controls nucleosome turnover to allow RNA Polymerase to transcribe in vivo.
    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 et al.
    Auto-inhibition of ISWI-family ATP-dependent chromatin remodelers is relieved by a conserved feature of the nucleosome.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structures of remodeler-nucleosome intermediates suggest allosteric control through the nucleosome

    Jean Paul Armache et al.
    Cryo-EM structures capture different conformational states of chromatin remodeler-nucleosome complexes.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Chromatin: Assembly, remodelled

    Karim Bouazoune, Robert E Kingston
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    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    H2A histone-fold and DNA elements in nucleosome activate SWR1-mediated H2A.Z replacement in budding yeast

    Anand Ranjan et al.
    Specific elements of the canonical nucleosome are recognized by the multi-component SWR1 chromatin remodeler for ATP-dependent replacement of H2A-H2B dimers with H2A.Z-H2B.

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