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Page 2 of 214
    1. Structural Biology and Molecular Biophysics

    Phosphatidic acid modulation of Kv channel voltage sensor function

    Richard K Hite, Joel A Butterwick, Roderick MacKinnon
    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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Regulation of Eag1 gating by its intracellular domains

    Jonathan R Whicher, Roderick MacKinnon
    Interactions between the voltage sensor and intracellular domains modulate voltage-dependent gating and calmodulin inhibition in the voltage-gated potassium channel Eag1.
    1. Structural Biology and Molecular Biophysics

    Discovery and characterization of Hv1-type proton channels in reef-building corals

    Gisela Rangel-Yescas, Cecilia Cervantes ... Leon D Islas
    Proton channels are present in reef-building corals and constitute important molecular players that should help understand calcification and the response of these organisms to ocean acidification.
    1. Structural Biology and Molecular Biophysics

    Optimized tight binding between the S1 segment and KCNE3 is required for the constitutively open nature of the KCNQ1-KCNE3 channel complex

    Go Kasuya, Koichi Nakajo
    Guided by the available cryo-EM structure of the KCNQ1-KCNE3 ion channel complex, the critical role of the S1 segment of the voltage-sensor domain in the gating modulation by KCNE3 is revealed.
    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.
    1. Structural Biology and Molecular Biophysics

    Distinctive mechanisms of epilepsy-causing mutants discovered by measuring S4 movement in KCNQ2 channels

    Michaela A Edmond, Andy Hinojo-Perez ... Rene Barro-Soria
    Because voltage-gated KCNQ2 channels are central to physiological and pathophysiological events, understanding how disease-causing mutations in different channel regions disrupt function will help future development of mutation-specific antiepileptic therapies.
    1. Structural Biology and Molecular Biophysics

    Helix breaking transition in the S4 of HCN channel is critical for hyperpolarization-dependent gating

    Marina A Kasimova, Debanjan Tewari ... Baron Chanda
    The gating polarity of a voltage-gated ion channel is primarily determined by turn propensity of residues at a critical position in the middle of the S4 voltage-sensing helix.
    1. Structural Biology and Molecular Biophysics

    Calcium-driven regulation of voltage-sensing domains in BK channels

    Yenisleidy Lorenzo-Ceballos, Willy Carrasquel-Ursulaez ... Ramon Latorre
    Gating currents analysis at different Ca2+ concentrations of BK channels reveals a strong allosteric coupling between Ca2+- and voltage-sensing modules via equivalent contributions exerted by the RCK1 and RCK2 Ca2+-sites.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Mechanosensitive pore opening of a prokaryotic voltage-gated sodium channel

    Peter R Strege, Luke M Cowan ... Arthur Beyder
    Force applied to the cell membrane reversibly changes a voltage-insensitive gating step of a prokaryotic voltage-gated sodium channel.
    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.