15 results found
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    The modular mechanism of chromocenter formation in Drosophila

    Madhav Jagannathan et al.
    Cell biological study reveals the mechanism by which multiple satellite-DNA-binding proteins cooperate to form chromocenter to encapsulate the full complement of chromosomes.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Chromocenters: Bundling up DNA

    Susan A Gerbi
    Structures known as chromocenters, comprising satellite DNA and proteins such as D1 or HMGA1, help to contain DNA inside the nucleus between cell divisions.
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    1. Cell Biology
    2. Chromosomes and Gene Expression

    A conserved function for pericentromeric satellite DNA

    Madhav Jagannathan et al.
    Satellite DNA mediates clustering of multiple chromosomes via formation of chromocenter to encapsulate the full complement of the genome into a single nucleus.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    The MBD7 complex promotes expression of methylated transgenes without significantly altering their methylation status

    Dongming Li et al.
    The METHYL-CpG-BINDING DOMAIN 7 (MBD7) complex promotes the activation (rather than repression) of transgenes that undergo DNA methylation and it does so without significantly altering their methylation status, placing this complex downstream of DNA methylation.
    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. Cell Biology

    The transcription factor Hey and nuclear lamins specify and maintain cell identity

    Naama Flint Brodsly et al.
    Hey together with LaminC continuously supervise nuclear organisation and differentiated enterocyte identity, a regulation that is lost upon ageing, resulting in loss of gut homeostasis.
    1. Cell Biology
    2. Physics of Living Systems

    Rod nuclear architecture determines contrast transmission of the retina and behavioral sensitivity in mice

    Kaushikaram Subramanian et al.
    Establishing retinal contrast transmission as a novel determinant of mammalian fitness, this research adds functional significance to a prominent exception of nuclear organization, previously described in nocturnal rod photoreceptor cells.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Natural depletion of histone H1 in sex cells causes DNA demethylation, heterochromatin decondensation and transposon activation

    Shengbo He et al.
    Transposon activation during male gametogenesis is caused by interactions between DNA demethylation and linker histone H1, developmental depletion of which promotes pollen fertility.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Rif1 inhibits replication fork progression and controls DNA copy number in Drosophila

    Alexander Munden et al.
    To regulate DNA copy number during development in Drosophila, the SUUR protein recruits Rif1 to replisomes where Rif1 inhibits replication fork progression, thus controlling copy number independently of origin firing.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    RNA from a simple-tandem repeat is required for sperm maturation and male fertility in Drosophila melanogaster

    Wilbur Kyle Mills et al.
    Sperm production and male fertility in Drosophila melanogaster depend on transcripts generated from the AAGAG(n) repeated satellite DNA within primary spermatocytes.

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