32 results found
    1. Cell Biology

    Switch-like Arp2/3 activation upon WASP and WIP recruitment to an apparent threshold level by multivalent linker proteins in vivo

    Yidi Sun et al.
    Intersectin counterparts in yeast recruit WASP and WIP to endocytic sites to establish a robust multivalent SH3 domain-PRM interaction network which gives actin assembly onset a switch-like behavior in vivo.
    1. Cell Biology
    2. Computational and Systems Biology

    Intrinsically disordered linkers determine the interplay between phase separation and gelation in multivalent proteins

    Tyler S Harmon et al.
    Computational modeling and theoretical analysis reveal how disordered linkers determine whether linear multivalent proteins undergo gelation with or without phase separation.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Pi-Pi contacts are an overlooked protein feature relevant to phase separation

    Robert McCoy Vernon et al.
    Statistics on the frequencies of pi interactions in folded protein structures enable successful prediction of intrinsically disordered protein phase separation, with clear implications for a physical understanding of cellular organization.
    1. Cell Biology
    2. Human Biology and Medicine

    A novel GSK3-regulated APC:Axin interaction regulates Wnt signaling by driving a catalytic cycle of efficient ╬▓catenin destruction

    Mira I Pronobis et al.
    A new dynamic mechanistic model explains how the destruction complex negatively regulates Wnt signaling in development and oncogenesis.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A composition-dependent molecular clutch between T cell signaling condensates and actin

    Jonathon A Ditlev et al.
    Compositional changes alter actin binding by phase separated T cell signaling clusters, enabling cluster movement by distinct actin networks.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Constitutive scaffolding of multiple Wnt enhanceosome components by Legless/BCL9

    Laurens M van Tienen et al.
    BCL9/Legless is an integral component of the Wnt enhanceosome, harboring binding sites in its conserved C-terminus for multiple core components of this complex including ChiLS and Groucho/TLE.
    1. Structural Biology and Molecular Biophysics

    Promiscuous binding by Hsp70 results in conformational heterogeneity and fuzzy chaperone-substrate ensembles

    Rina Rosenzweig et al.
    Multiple chaperone binding sites on substrates suggest a mechanism by which the Hsp70 chaperone can circumvent kinetic traps in protein folding.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    ketu mutant mice uncover an essential meiotic function for the ancient RNA helicase YTHDC2

    Devanshi Jain et al.
    The mouse gene Ythdc2 exemplifies an evolutionarily ancient family of crucial regulators of the transition from germline stem cell divisions to meiosis.
    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 et al.
    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. Physics of Living Systems

    Munc18-1-regulated stage-wise SNARE assembly underlying synaptic exocytosis

    Lu Ma et al.
    The Munc18-1 protein promotes formation of the t-SNARE complex and the half-zippered SNARE complex, two rate-limiting steps of SNARE assembly, to enhance membrane fusion.

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