228 results found
    1. Cell Biology

    In vivo reconstitution finds multivalent RNA–RNA interactions as drivers of mesh-like condensates

    Weirui Ma et al.
    Binding of a multivalent RNA-binding protein to mRNAs that are able to form pervasive RNA–RNA interactions induces formation of mesh-like condensates, whereas binding of mostly structured mRNAs induces sphere-like condensates.
    1. Cell Biology

    Tyramine induces dynamic RNP granule remodeling and translation activation in the Drosophila brain

    Nadia Formicola et al.
    Tyramine-dependent signaling triggers decondensation of neuronal RNP components and rapid translation activation of target mRNAs.
    1. Physics of Living Systems

    Charge-driven condensation of RNA and proteins suggests broad role of phase separation in cytoplasmic environments

    Bercem Dutagaci et al.
    Charge complementarity between RNA and proteins may be a universal principle for phase separation in biology without requiring disorder or specific multivalent interactions.
    1. Cell Biology
    2. Developmental Biology

    Protein-based condensation mechanisms drive the assembly of RNA-rich P granules

    Helen Schmidt et al.
    P granule assembly depends in part on protein-protein interactions that drive condensation independent of RNA.
    1. Cell Biology
    2. Developmental Biology

    Recruitment of mRNAs to P granules by condensation with intrinsically-disordered proteins

    Chih-Yung S Lee et al.
    The intrinsically-disordered protein MEG-3 recruits mRNAs to P granules by forming gel-like condensates with ribosome-depleted mRNAs.
    1. Cell Biology

    A quantitative inventory of yeast P body proteins reveals principles of composition and specificity

    Wenmin Xing et al.
    Quantitative analyses of yeast P bodies reveals a small number of highly concentrated proteins and many weakly concentrated proteins, suggesting that the compartments are compositionally simpler than previously thought.
    1. Chromosomes and Gene Expression

    A tudor domain protein, SIMR-1, promotes siRNA production at piRNA-targeted mRNAs in C. elegans

    Kevin I Manage et al.
    SIMR-1 acts downstream of the piRNA pathway to promote siRNA amplification by the Mutator complex and localizes to perinuclear foci distinct from Mutator foci, P granules and Z granules.
    1. Chromosomes and Gene Expression
    2. Immunology and Inflammation

    Polypyrimidine tract-binding proteins are essential for B cell development

    Elisa Monzón-Casanova et al.
    The RNA-binding protein polypyrimidine tract-binding protein 1 (PTBP1) is essential for B cell development at the pro-B cell stage where it suppresses S-phase entry and promotes progression through mitosis.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Evidence for DNA-mediated nuclear compartmentalization distinct from phase separation

    David Trombley McSwiggen et al.
    Transient DNA interactions by DNA-binding proteins are utilized by herpes simple virus as an alternative route to generate membraneless compartments in the nucleus without invoking phase separation.
    1. Developmental Biology

    m6A RNA methylation impacts fate choices during skin morphogenesis

    Linghe Xi et al.
    METTL3-mediated m6A modification maintains proper cell lineage specification during skin epithelium morphogenesis by coupling transcription and translation of key regulatory pathways.

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