135 results found
    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. 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. 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.
    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 et al.
    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. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Constitutive turnover of histone H2A.Z at yeast promoters requires the preinitiation complex

    Michael Tramantano et al.
    The transcription machinery is required for the disassembly of the promoter-proximal H2A.Z nucleosome, contributing to the constitutive histone turnover at yeast promoters.
    1. Developmental Biology
    2. Human Biology and Medicine

    CHARGE syndrome modeling using patient-iPSCs reveals defective migration of neural crest cells harboring CHD7 mutations

    Hironobu Okuno et al.
    Neural crest cells differentiated from patient-derived cells with mutations in the chromatin remodeler CHD7 show defective delamination, migration and motility in vitro, and defective migration in chick embryos.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Concerted regulation of ISWI by an autoinhibitory domain and the H4 N-terminal tail

    Johanna Ludwigsen et al.
    The N-terminal domain of the chromatin remodeler ISWI contains previously uncharacterized conserved motifs that maintain structure, prevent ATP hydrolysis unless nucleosomes are bound, and confer H4-tail sensitivity without directly competing with the H4 tail.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    A twist defect mechanism for ATP-dependent translocation of nucleosomal DNA

    Jessica Winger et al.
    Based on its nucleotide-bound state, the Chd1 chromatin remodeler can locally alter DNA twist on the nucleosome, which either pulls in or expels ~1 bp of DNA at the internal SHL2 binding site.

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