6,926 results found
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanism for direct actin force-sensing by α-catenin

    Lin Mei et al.
    Biophysical and structural studies reveal how low piconewton forces across actin enhance binding by the critical cell-cell adhesion protein α-catenin versus its force insensitive homolog vinculin.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures reveal specialization at the myosin VI-actin interface and a mechanism of force sensitivity

    Pinar S Gurel et al.
    Cryo-EM structures of actomyosin VI in multiple nucleotide states reveal a unique actin-myosin interface and a mechanism of force-sensitivity; furthermore, myosin VI remodels F-actin, suggesting a role for actin structural plasticity during force generation.
    1. Cell Biology

    Different translation dynamics of β- and γ-actin regulates cell migration

    Pavan Vedula et al.
    β- and γ-cytoplasmic actins have different translation rates in cells and exert different nucleotide coding sequence-dependent effects on cell migration.
    1. Cell Biology
    2. Neuroscience

    Structural plasticity of actin-spectrin membrane skeleton and functional role of actin and spectrin in axon degeneration

    Guiping Wang et al.
    Neurotrophin deprivation leads to rapid caspase-independent disassembly of the actin-spectrin-based membrane skeleton and spectrin-dependent retrograde signaling in axon degeneration.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Calponin-homology domain mediated bending of membrane-associated actin filaments

    Saravanan Palani et al.
    Combination of actin and curly on lipid membranes constitutes a new, minimalistic system to generate high curvature actin rings that can contract upon the action of myosin II filaments.
    1. Neuroscience

    Striatal action-value neurons reconsidered

    Lotem Elber-Dorozko, Yonatan Loewenstein
    The numerous reports in support of action-value representation in the striatum are based on statistical analyses that are subject to two critical confounds and, thus, this long-held belief of striatal action-value representation should be retested using different experiments and analyses.
    1. Structural Biology and Molecular Biophysics

    Structural insights into SETD3-mediated histidine methylation on β-actin

    Qiong Guo et al.
    Structural research, supplemented by biochemical experiments and enzymatic assays, unravels the sequence-dependent molecular mechanism by which SETD3 recognizes β-actin and methylates His73 of β-actin.
    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

    Talin-activated vinculin interacts with branched actin networks to initiate bundles

    Rajaa Boujemaa-Paterski et al.
    At adhesion sites, talin-activated vinculin promotes interactions with the actin network that initiates bundles.
    1. Structural Biology and Molecular Biophysics

    Structural basis of αE-catenin–F-actin catch bond behavior

    Xiao-Ping Xu et al.
    A molecular mechanism for force-dependent binding of the cell adhesion proteins αE-catenin and vinculin to actin is derived from the structure of the αE-catenin actin-binding domain bound to F-actin.

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