142 results found
    1. Structural Biology and Molecular Biophysics

    A hydrophobic gate in the inner pore helix is the major determinant of inactivation in mechanosensitive Piezo channels

    Wang Zheng et al.
    A functionally conserved inactivation gate in the inner helix of Piezo channels controls the majority of the inactivation process via a hydrophobic mechanism.
    1. Cell Biology
    2. Developmental Biology

    Mechanical force regulates tendon extracellular matrix organization and tenocyte morphogenesis through TGFbeta signaling

    Arul Subramanian et al.
    Perturbation of mechanical force at muscle attachments and its effects on tendon morphogenesis provides insights into the mechanisms underlying cellular responses to tensional force and resulting extracellular matrix production.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Synergy between RecBCD subunits is essential for efficient DNA unwinding

    Rani Zananiri et al.
    A new optical tweezers assay sheds light on the mechanism of cooperation and force generation by the subunits of RecBCD, critical for the repair of double strand breaks in bacteria.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Crystal structure of a natural light-gated anion channelrhodopsin

    Hai Li et al.
    The atomic structure of GtACR1 provides new insight into the chemical mechanism of natural light-gated anion membrane conductance, and enables its optimization for optogenetic photoinhibition of neuron firing.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Auxiliary subunits keep AMPA receptors compact during activation and desensitization

    Jelena Baranovic, Andrew JR Plested
    The auxiliary protein Stargazin limits the conformational dynamics of AMPA-type glutamate receptors in cell membranes, as revealed by 'molecular rulers' deployed on the seconds to milliseconds timescale.
    1. Structural Biology and Molecular Biophysics

    Piezo’s membrane footprint and its contribution to mechanosensitivity

    Christoph A Haselwandter, Roderick MacKinnon
    Membrane mechanics predict that the ion channel Piezo recruits the surrounding membrane to amplify its sensitivity to changes in membrane tension, with greatest sensitivity in the low-tension regime.
    1. Neuroscience

    Decision and navigation in mouse parietal cortex

    Michael Krumin et al.
    When mice use vision to choose their trajectories, a large fraction of parietal cortex activity can be precisely predicted from navigational attributes such as spatial position and heading.
    1. Neuroscience
    2. Physics of Living Systems

    Arterial smooth muscle cell PKD2 (TRPP1) channels regulate systemic blood pressure

    Simon Bulley et al.
    Arterial myocyte PKD2 channels are activated by vasoconstrictor stimuli, which increases blood pressure, are upregulated during hypertension and cell-specific knockout in vivo reduces both physiological blood pressure and hypertension.
    1. Ecology
    2. Microbiology and Infectious Disease

    Immune-mediated hookworm clearance and survival of a marine mammal decrease with warmer ocean temperatures

    Mauricio Seguel et al.
    In years with colder ocean temperatures, fur seal pups receive more maternal care and have a better energy balance, clearing hookworm infection earlier, which increases their chances of survival.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the mechanically activated ion channel OSCA1.2

    Sebastian Jojoa-Cruz et al.
    Structures of OSCA1.2, a member of a newly characterized family of mechanically activated ion channels, provide insights into mechanism of channel gating by membrane tension.

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