61 results found
    1. Structural Biology and Molecular Biophysics
    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. Structural Biology and Molecular Biophysics

    High temperature sensitivity is intrinsic to voltage-gated potassium channels

    Fan Yang, Jie Zheng
    Highly temperature-sensitive behavior of voltage-gated potassium channels provides a mechanistic model for how heat-activated TRP channels serve as temperature and pain sensors.
    1. Structural Biology and Molecular Biophysics

    Phosphatidic acid modulation of Kv channel voltage sensor function

    Richard K Hite et al.
    Phosphatidic acid influences the gating of voltage-gated K+ channels through a non-specific surface charge mechanism and through a specific interaction between a voltage sensor arginine and the primary phosphate head group on the cytoplasmic membrane leaflet.
    1. Structural Biology and Molecular Biophysics

    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.
    1. Neuroscience

    Transcriptional profiling at whole population and single cell levels reveals somatosensory neuron molecular diversity

    Isaac M Chiu et al.
    Molecular analysis paints a detailed picture of the distinctiveness and complexities of peripheral somatosensory neurons.
    1. Microbiology and Infectious Disease

    Unprecedented genomic diversity of RNA viruses in arthropods reveals the ancestry of negative-sense RNA viruses

    Ci-Xiu Li et al.
    Extensive genetic diversity and novel genome structures in RNA viruses from arthropods shed important new light on the ancestry and evolutionary history of major classes of vertebrate and plant viruses.
    1. Cell Biology
    2. Neuroscience

    CaRuby-Nano: a novel high affinity calcium probe for dual color imaging

    Mayeul Collot et al.
    CaRuby-Nano is a novel red-emitting and highly sensitive functionalizable calcium indicator with a wide range of applications in neuroscience and cell biology.
    1. Structural Biology and Molecular Biophysics

    Tarantula toxins use common surfaces for interacting with Kv and ASIC ion channels

    Kanchan Gupta et al.
    The tarantula toxins psalmotoxin and guangxitoxin have a similar concave surface for interacting with α-helices in voltage-gated and acid-sensing ion channels.
    1. Neuroscience

    Noise-induced plasticity of KCNQ2/3 and HCN channels underlies vulnerability and resilience to tinnitus

    Shuang Li et al.
    Mice that successfully avoid developing tinnitus despite exposure to excessive noise show spontaneous recovery of KCNQ2/3 potassium channel activity associated with a reduction in HCN channel activity in auditory brainstem neurons.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Unnatural amino acid photo-crosslinking of the IKs channel complex demonstrates a KCNE1:KCNQ1 stoichiometry of up to 4:4

    Christopher I Murray et al.
    The IKs potassium channel complex displays functional flexibility that depends on the ratio of its constituent KCNQ1 and KCNE1 protein subunits.

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