4,615 results found
    1. Neuroscience

    Inhibition of Transient Receptor Potential Melastatin 3 ion channels by G-protein βγ subunits

    Doreen Badheka et al.
    Electrophysiological experiments, Ca2+ imaging, and behavioral studies in mice identify the TRPM3 ion channel as a novel target of G-protein βγ subunits.
    1. Biophysics and Structural Biology
    2. Neuroscience

    Optical electrophysiology for probing function and pharmacology of voltage-gated ion channels

    Hongkang Zhang et al.
    Optogenetic tools enable sophisticated measurements of a voltage-gated sodium channel implicated in pain, as well as high-throughput screening of candidate channel blockers.
    1. Biochemistry
    2. Biophysics and Structural Biology

    A family of fluoride-specific ion channels with dual-topology architecture

    Randy B Stockbridge et al.
    Efflux of xenobiotic fluoride from microorganisms occurs through a novel family of ion channels with stringent selectivity for fluoride ion and dual-topology molecular architecture.
    1. Computational and Systems Biology
    2. Neuroscience

    Mapping the function of neuronal ion channels in model and experiment

    William F Podlaski et al.
    The ion channel genealogy resource is a comprehensive and intuitive comparison tool for ion channel models and experimental data, helping to visualize their similarity and function to facilitate better experimentally-constrained modeling.
    1. Biophysics and Structural Biology
    2. Neuroscience

    Structure of a pore-blocking toxin in complex with a eukaryotic voltage-dependent K+ channel

    Anirban Banerjee et al.
    Charybdotoxin, a toxin produced by scorpions, blocks a K+ channel by binding in a lock-and-key fashion to the mouth of the channel and presenting a lysine amino group, which serves as a K+ mimic in the selectivity filter.
    1. Biophysics and Structural Biology
    2. Cell Biology

    Sculpting ion channel functional expression with engineered ubiquitin ligases

    Scott A Kanner et al.
    Engineered E3 ubiquitin ligases are utilized to elucidate mechanisms underlying ubiquitin regulation of membrane proteins, and to achieve robust post-translational functional knockdown of ion channels.
    1. Biophysics and Structural Biology

    Mechanistic signs of double-barreled structure in a fluoride ion channel

    Nicholas B Last et al.
    Combining crystal structures with single-pore analysis of Fluc-family fluoride channel mutants demonstrates that Fluc channels have two separate fluoride ion permeation pathways within the channel complex.
    1. Biophysics and Structural Biology

    Molecular determinants of permeation in a fluoride-specific ion channel

    Nicholas B Last et al.
    The ion-transport pathway of an unconventional bacterial fluoride channel is mapped out through combined crystallographic and functional experiments.
    1. Biophysics and Structural Biology
    2. Cell Biology

    Atypical calcium regulation of the PKD2-L1 polycystin ion channel

    Paul G DeCaen et al.
    Outward calcium ion currents desensitize the human PKD2-L1 ion channel via a mechanism that is independent of cytosolic motifs.
    1. Biophysics and Structural Biology

    Domain–domain interactions determine the gating, permeation, pharmacology, and subunit modulation of the IKs ion channel

    Mark A Zaydman et al.
    Contrary to a generally accepted principle, the pore properties of KCNQ1 channels depend on the states of voltage-sensing domains activation; KCNE1 alters the voltage-sensing domains-pore coupling to modulate KCNQ1 channel properties.

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