488 results found
    1. Developmental Biology
    2. 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. Cancer Biology

    NuRD subunit CHD4 regulates super-enhancer accessibility in rhabdomyosarcoma and represents a general tumor dependency

    Joana G Marques et al.
    In fusion-positive rhabdomyosarcoma, CHD4 positively regulates super-enhancer-mediated gene expression by allowing a chromatin architecture at these cis-regulatory regions, which is permissive to the binding of the transcription factor PAX3-FOXO1.
    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 et al.
    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. Developmental Biology

    Negative regulation of G2-M by ATR (mei-41)/Chk1(Grapes) facilitates tracheoblast growth and tracheal hypertrophy in Drosophila

    Amrutha Kizhedathu et al.
    ATR/Chk1 contribute to G2 arrest in developing tracheoblasts, and arrest in G2 facilitates cellular and hypertrophic organ growth.
    1. Chromosomes and Gene Expression

    Cdc7 activates replication checkpoint by phosphorylating the Chk1-binding domain of Claspin in human cells

    Chi-Chun Yang et al.
    Cdc7 and CK1g1 independently and additively phosphorylate the Chk1-binding domain of claspin to activate replication checkpoint with differential contribution of each kinase in different cell types.
    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 et al.
    The unwrapping two turns of DNA on Chd1-bound nucleosomes cause the histone H3 tail and ubiquitin to be re-positioned.
    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. Structural Biology and Molecular Biophysics

    Nucleosome-CHD4 chromatin remodeler structure maps human disease mutations

    Lucas Farnung et al.
    The structure of the chromatin remodeller CHD4 bound to a nucleosome reveals differences to the known Chd1-nucleosome complex and maps cancer mutations.
    1. Developmental Biology

    Deregulated FGF and homeotic gene expression underlies cerebellar vermis hypoplasia in CHARGE syndrome

    Tian Yu et al.
    Mutations in CHD7, which cause CHARGE syndrome, cause a reduction in FGF8 signalling and subsequent abnormalities in the cerebellar vermis in both mice and humans.
    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.

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