133 results found
    1. Structural Biology and Molecular Biophysics

    Nucleophosmin integrates within the nucleolus via multi-modal interactions with proteins displaying R-rich linear motifs and rRNA

    Diana M Mitrea, Jaclyn A Cika ... Richard W Kriwacki
    Nucleolar protein localization involves the phase separation within the nucleolar matrix via three types of multivalent features: acidic tracts, nucleic acid binding domains and arginine-rich low complexity sequences.
    1. Cell Biology

    Cross-compartment signal propagation in the mitotic exit network

    Xiaoxue Zhou, Wenxue Li ... Angelika Amon
    The mitotic exit network signals from spindle pole bodies to the nucleolus through the dynamic localization of its terminal kinase complex Dbf2-Mob1.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Protein quality control in the nucleolus safeguards recovery of epigenetic regulators after heat shock

    Maria Azkanaz, Aida Rodríguez López ... Vincent van den Boom
    Heat shock induces relocalization of epigenetic modifiers to the nucleolus, which acts as a dedicated protein quality control center that is indispensable for recovery of epigenetic regulators and epigenetic modifications.
    1. Cell Biology

    Synthetic protein interactions reveal a functional map of the cell

    Lisa K Berry, Guðjón Ólafsson ... Peter H Thorpe
    Forcing protein associations across the proteome reveals the cell's tolerance for diverse protein interactions and reveals the interactions that affect growth.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Alpha-satellite RNA transcripts are repressed by centromere–nucleolus associations

    Leah Bury, Brittania Moodie ... Iain M Cheeseman
    Single molecule FISH analysis defines the behavior of centromere-derived alpha-satellite transcripts in intact human cells and reveals a critical role for centromere-nucleolar contacts in repressing alpha-satellite transcription.
    1. Cell Biology

    Ki-67 is a PP1-interacting protein that organises the mitotic chromosome periphery

    Daniel G Booth, Masatoshi Takagi ... Paola Vagnarelli
    The mitotic chromosome periphery is organised by the PP1 binding protein Ki-67 and contributes to nucleolar re-activation upon mitotic exit.
    1. Cell Biology
    2. Computational and Systems Biology

    Transcriptional regulation of Sis1 promotes fitness but not feedback in the heat shock response

    Rania Garde, Abhyudai Singh ... David Pincus
    The chaperones Hsp70 and Sis1 collaborate to repress the heat shock response and are both transcriptional targets of the heat shock response, yet only Hsp70 acts as a negative feedback regulator of the heat shock response.
    1. Cell Biology
    2. Computational and Systems Biology

    Age-dependent aggregation of ribosomal RNA-binding proteins links deterioration in chromatin stability with challenges to proteostasis

    Julie Paxman, Zhen Zhou ... Nan Hao
    The interaction between rDNA instability and proteostasis stress, two major aging hallmarks, underlies single-cell aging trajectories in yeast.
    1. Cell Biology

    The cell proliferation antigen Ki-67 organises heterochromatin

    Michal Sobecki, Karim Mrouj ... Daniel Fisher
    Antigen Ki-67, which is widely used as a cell proliferation marker, controls heterochromatin organisation and gene expression.
    1. Chromosomes and Gene Expression

    Monoallelically expressed noncoding RNAs form nucleolar territories on NOR-containing chromosomes and regulate rRNA expression

    Qinyu Hao, Minxue Liu ... Kannanganattu V Prasanth
    A novel family of nucleolus-enriched ncRNAs forms allele-specific territories on the nucleolar organizing region (NOR)-containing acrocentric chromosomes.

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