164 results found
    1. Cell Biology

    The cell proliferation antigen Ki-67 organises heterochromatin

    Michal Sobecki et al.
    Antigen Ki-67, which is widely used as a cell proliferation marker, controls heterochromatin organisation and gene expression.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Heterochromatin assembly by interrupted Sir3 bridges across neighboring nucleosomes

    Reza Behrouzi et al.
    Cooperative association of a histone-binding complex with pairs of appropriately modified nucleosomes, which form fundamental units of binding, mediates selective heterochromatin assembly and spreading.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    The preRC protein ORCA organizes heterochromatin by assembling histone H3 lysine 9 methyltransferases on chromatin

    Sumanprava Giri et al.
    Origin recognition complex-associated (ORCA) is crucial for the stability of the Histone H3 lysine 9 methyltransferase megacomplex, which is essential for heterochromatin organization.
    1. Chromosomes and Gene Expression

    Major satellite repeat RNA stabilize heterochromatin retention of Suv39h enzymes by RNA-nucleosome association and RNA:DNA hybrid formation

    Oscar Velazquez Camacho et al.
    An RNA-mediated mechanism that stabilizes association of the Suv39h enzymes at mouse heterochromatin is defined.
    1. Chromosomes and Gene Expression

    Rapid epigenetic adaptation to uncontrolled heterochromatin spreading

    Jiyong Wang et al.
    Redundant pathways prevent heterochromatin spreading and ectopic heterochromatin assembly; and plasticity of heterochromatin assembly allows cells to adapt to heterochromatin stress.
    1. Chromosomes and Gene Expression

    Noncoding RNA-nucleated heterochromatin spreading is intrinsically labile and requires accessory elements for epigenetic stability

    R A Greenstein et al.
    Heterochromatin spreading in fission yeast predominantly produces intergenerationally unstable outcomes, requiring an accessory element that represses histone turnover.
    1. Chromosomes and Gene Expression

    Impact of nucleic acid and methylated H3K9 binding activities of Suv39h1 on its heterochromatin assembly

    Atsuko Shirai et al.
    Suv39h1 chromodomain possesses nucleic acid-binding activity and this activity is coupled with its H3K9 methylation recognition in assembling heterochromatin.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    RNA-dependent stabilization of SUV39H1 at constitutive heterochromatin

    Whitney L Johnson et al.
    SUV39H1 histone methyltransferase directly binds chromosome associated RNA to promote constitutive heterochromatin formation.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    A team of heterochromatin factors collaborates with small RNA pathways to combat repetitive elements and germline stress

    Alicia N McMurchy et al.
    Genome-wide profiling and functional analyses reveal a network of heterochromatin and small RNA factors that silences repetitive elements and prevents genotoxic stress to ensure fertility.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    The composition and organization of Drosophila heterochromatin are heterogeneous and dynamic

    Joel M Swenson et al.
    Identification of novel components and regulators of heterochromatin reveals a spatially complex and dynamic organization.

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