234 results found
    1. Neuroscience

    Vasoactive intestinal peptide-expressing interneurons are impaired in a mouse model of Dravet syndrome

    Kevin M Goff, Ethan M Goldberg
    Vasoactive intestinal peptide-expressing GABAergic interneurons in cerebral cortex express the sodium channel subunit Nav1.1, and a defined subset of VIP interneurons are dysfunctional in a mouse model of Dravet syndrome.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Single-particle cryo-EM structure of a voltage-activated potassium channel in lipid nanodiscs

    Doreen Matthies et al.
    The structure of a voltage-activated potassium channel in lipid nanodiscs solved using cryo-electron microscopy is similar to previous X-ray structures, and provides insights into the mechanism of C-type inactivation.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Control of Slc7a5 sensitivity by the voltage-sensing domain of Kv1 channels

    Shawn M Lamothe et al.
    The voltage-sensing mechanism of a subfamily of potassium channels is modulated in unconventional ways by an amino acid transporter.
    1. Neuroscience

    Novel charged sodium and calcium channel inhibitor active against neurogenic inflammation

    Seungkyu Lee et al.
    A cationic molecule derived from an uncharged Cav2.2 calcium channel inhibitor powerfully inhibits both sodium and calcium channels with extracellular application and inhibits both pain and neurogenic inflammation.
    1. Stem Cells and Regenerative Medicine

    Functionally heterogeneous human satellite cells identified by single cell RNA sequencing

    Emilie Barruet et al.
    Single cell RNA sequencing leads to identification and separation of transcriptionally and functionally heterogeneous, natural human satellite cells, including a subpopulation marked by CAV1 harboring quiescence phenotypes and engraftment potential.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Single-molecule analysis reveals self assembly and nanoscale segregation of two distinct cavin subcomplexes on caveolae

    Yann Gambin et al.
    New insights into the assembly and membrane interactions of the caveolar coat complex reveal the reversible association/dissociation of distinct subcomplexes onto the membrane, which differs from the assembly/disassembly of clathrin-coated pits.
    1. Structural Biology and Molecular Biophysics

    Polyunsaturated fatty acid analogues differentially affect cardiac NaV, CaV, and KV channels through unique mechanisms

    Briana M Bohannon et al.
    Polyunsaturated fatty acid analogues show selectivity for different cardiac ion channels, suggesting their potential use for the treatment of different subtypes of Long QT Syndrome.
    1. Neuroscience

    Activity-dependent regulation of T-type calcium channels by submembrane calcium ions

    Magali Cazade et al.
    The feedback inhibition of T-type calcium channels by intracellular calcium provides new avenues to better decipher the roles of these low-voltage-activated channels in the fine control of calcium signaling events in physiology and pathophysiology.
    1. Neuroscience

    Voltage-gated Na+ currents in human dorsal root ganglion neurons

    Xiulin Zhang et al.
    Human sensory neurons may not only bridge a critical gap between drug discovery and clinical trials, but force a re-evaluation of basic assumptions about the mechanisms controlling primary afferent excitability.
    1. Neuroscience

    Homeostatic synaptic depression is achieved through a regulated decrease in presynaptic calcium channel abundance

    Michael A Gaviño et al.
    Experiments at synapses between nerve and muscle cells in genetically modified fruit flies reveal how neurons compensate for perturbations that would otherwise cause excessive synaptic transmission.

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