4,426 results found
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

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

    Lin Mei, Santiago Espinosa de los Reyes ... Gregory M Alushin
    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. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Tunable molecular tension sensors reveal extension-based control of vinculin loading

    Andrew S LaCroix, Andrew D Lynch ... Brenton D Hoffman
    A quantitative understanding of molecular tension sensor function enables the production of unique sensors with desired mechanical properties as well as the ability to distinguish between protein force and protein deformation in mechanosensitive processes.
    1. Structural Biology and Molecular Biophysics

    Molecular basis of force-from-lipids gating in the mechanosensitive channel MscS

    Bharat Reddy, Navid Bavi ... Eduardo Perozo
    The structure of the mechanosensitive channel MscS embedded in a lipid bilayer redefines the nature, location and importance of lipid–protein interactions in the gating of mechanosensitive channels.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Neck linker docking is critical for Kinesin-1 force generation in cells but at a cost to motor speed and processivity

    Breane G Budaitis, Shashank Jariwala ... Kristen J Verhey
    Force generation by kinesin motor proteins requires formation of both a 2-stranded cover-neck bundle and an asparagine-based latch for transport of membrane-bound cargoes in cells.
    1. Computational and Systems Biology
    2. Developmental Biology

    Elastic force restricts growth of the murine utricle

    Ksenia Gnedeva, Adrian Jacobo ... A J Hudspeth
    Computational modeling and molecular-biological analysis reveal the role of mechanical force and downstream Yap signaling in growth control during the development and regeneration of sensory epithelium of the inner ear.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular determinants of the Ska-Ndc80 interaction and their influence on microtubule tracking and force-coupling

    Pim J Huis in 't Veld, Vladimir A Volkov ... Marileen Dogterom
    Binding of two macromolecular complexes allows kinetochores to capture force produced by the depolymerising ends of microtubules, allowing chromosomes to be transmitted from a mother cell to its two daughters.
    1. Cell Biology

    The molecular mechanism of load adaptation by branched actin networks

    Tai-De Li, Peter Bieling ... Daniel A Fletcher
    An actin-based Brownian Ratchet enables branched actin networks to generate pushing forces, while a capping protein-based Brownian Ratchet provides force feedback that enables these networks to adapt their architecture in response to changing loads.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Resolving dual binding conformations of cellulosome cohesin-dockerin complexes using single-molecule force spectroscopy

    Markus A Jobst, Lukas F Milles ... Michael A Nash
    A single-molecule approach is able to discriminate the redundant binding conformations of cellulosomal dockerin based on differences in their mechanical properties.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Functional role of the type 1 pilus rod structure in mediating host-pathogen interactions

    Caitlin N Spaulding, Henry Louis Schreiber IV ... Edward H Egelman
    The helical rod structure and dynamic spring-like properties of the type 1 pilus are evolutionarily fine-tuned for functioning in host-pathogen interactions during urinary tract infection and gut colonization.
    1. Cell Biology

    Dynein–Dynactin–NuMA clusters generate cortical spindle-pulling forces as a multi-arm ensemble

    Masako Okumura, Toyoaki Natsume ... Tomomi Kiyomitsu
    Optogenetic reconstitution reveals core functional modules and architecture of the cortical force-generating machinery in human cells.

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