49 results found
    1. Neuroscience

    The palmitoyl acyltransferase ZDHHC14 controls Kv1-family potassium channel clustering at the axon initial segment

    Shaun S Sanders, Luiselys M Hernandez ... Gareth M Thomas
    ZDHHC14 controls palmitoylation and axon initial segment targeting of PSD93 and Kv1-family potassium channels, events that are essential for normal neuronal excitability.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

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

    Shawn M Lamothe, Nazlee Sharmin ... Harley T Kurata
    The voltage-sensing mechanism of a subfamily of potassium channels is modulated in unconventional ways by an amino acid transporter.
    1. Neuroscience

    Altered potassium channel distribution and composition in myelinated axons suppresses hyperexcitability following injury

    Margarita Calvo, Natalie Richards ... David LH Bennett
    Type 1 potassium channels alter their composition and localisation to suppress hyper-excitability and neuropathic pain of injured sensory neurons.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the KvAP channel reveals a non-domain-swapped voltage sensor topology

    Xiao Tao, Roderick MacKinnon
    The structure of KvAP addresses a mechanism of voltage-dependent gating that has been debated for 16 years.
    1. Neuroscience

    Peroxisomal dysfunctions cause lysosomal storage and axonal Kv1 channel redistribution in peripheral neuropathy

    Sandra Kleinecke, Sarah Richert ... Celia Michèle Kassmann
    Dysfunctions of myelin peroxisomes cause a lysosomal storage-like disorder associated with alterations in glial and axonal membranes, which is the likely cause of nerve impairment in peroxisomal disorders.
    1. Computational and Systems Biology
    2. Neuroscience

    Stochastic and deterministic dynamics of intrinsically irregular firing in cortical inhibitory interneurons

    Philipe RF Mendonça, Mariana Vargas-Caballero ... Hugh PC Robinson
    A-type potassium conductances influence the distinctive firing behaviour of irregular-spiking interneurons.
    1. Neuroscience

    The mechanosensitive ion channel TRAAK is localized to the mammalian node of Ranvier

    Stephen G Brohawn, Weiwei Wang ... Roderick MacKinnon
    The mechanosensitive potassium channel TRAAK is localized to nodes of Ranvier is mammalian axons where it hyperpolarizes the resting potential and may contribute to mechanical repolarization of neurons.
    1. Neuroscience

    A class-specific effect of dysmyelination on the excitability of hippocampal interneurons

    Delphine Pinatel, Edouard Pearlstein ... Catherine Faivre-Sarrailh
    Dysmyelination of GABAergic hippocampal interneurons causes mislocalization of axonal ionic channels and disturbs their intrinsic physiological properties, suggesting that it may contribute to cognitive deficits observed in multiple sclerosis patients.
    1. Structural Biology and Molecular Biophysics

    BK channel inhibition by strong extracellular acidification

    Yu Zhou, Xiao-Ming Xia, Christopher J Lingle
    Analysis of iconic and gating currents of wild type and mutated BK channels reveals a strong inhibition of this channel by extracellular acidification and elucidates the underlying mechanism that is potentially applicable to other voltage-dependent cation channels.

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