313 results found
    1. Developmental Biology
    2. Neuroscience

    Kv1.1 channels regulate early postnatal neurogenesis in mouse hippocampus via the TrkB signaling pathway

    Shu-Min Chou et al.
    Kv1.1 potassium channels regulate postnatal neurogenesis in the hippocampus via increasing the membrane excitability that activates the TrkB signaling pathway in a cell-autonomous manner.
    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

    Kv1.1 contributes to a rapid homeostatic plasticity of intrinsic excitability in CA1 pyramidal neurons in vivo

    Peter James Morgan et al.
    Short, theta-bursts of action potential firing decrease the global excitability of CA1 pyramidal neurons, providing an internal mechanism which could regulate their allocation to memory engrams.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Fluorescent sensors for activity and regulation of the nitrate transceptor CHL1/NRT1.1 and oligopeptide transporters

    Cheng-Hsun Ho, Wolf B Frommer
    Peptide and nitrate transporters have been converted into fluorescent reporters of transport activity and have been used to measure various transport properties including the dual affinity of the nitrate transceptor
    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. 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

    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

    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

    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.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of diverse membrane target recognitions by ankyrins

    Chao Wang et al.
    The 24 ankyrin repeats of ankyrin proteins form an extended solenoid that provides an extremely conserved groove for binding to numerous targets via combinatorial usage of multiple weak interaction sites.

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