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

    Cryo-EM structure of the calcium release-activated calcium channel Orai in an open conformation

    Xiaowei Hou et al.
    Structure of the Ca2+ channel Orai in an open conformation provides insights into the opening mechanism and the channel's role in regulating Ca2+ entry into immune and other non-excitable cells.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the mechanically activated ion channel OSCA1.2

    Sebastian Jojoa-Cruz et al.
    Structures of OSCA1.2, a member of a newly characterized family of mechanically activated ion channels, provide insights into mechanism of channel gating by membrane tension.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The fluoride permeation pathway and anion recognition in Fluc family fluoride channels

    Benjamin C McIlwain et al.
    In the extremely selective fluoride channels from the bacterial Fluc family, fluoride ions access the pore via two points, an electropositive vestibule and a triad of conserved residues involved in anion recognition.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Modulation of the Erwinia ligand-gated ion channel (ELIC) and the 5-HT3 receptor via a common vestibule site

    Marijke Brams et al.
    Development of nanobodies against a model pentameric ligand-gated ion channel demonstrates they can be functionally active as negative or positive allosteric modulators and offers opportunities for future drug development.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    The His-Gly motif of acid-sensing ion channels resides in a reentrant ‘loop’ implicated in gating and ion selectivity

    Nate Yoder, Eric Gouaux
    The amino terminus of acid-sensing ion channel 1a forms a reentrant 'loop' that frames the lower pore and harbors a conserved 'His-Gly' motif implicated in gating and ion selectivity mechanisms.
    1. Neuroscience

    Clusters of cooperative ion channels enable a membrane-potential-based mechanism for short-term memory

    Paul Pfeiffer et al.
    Independently gating ion channels typically act fast within milliseconds, but cooperative interactions within a cluster of channels allow for a memory of previous electrical activity for several seconds.
    1. Structural Biology and Molecular Biophysics

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

    Gisela Rangel-Yescas et al.
    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

    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. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Natural changes in light interact with circadian regulation at promoters to control gene expression in cyanobacteria

    Joseph Robert Piechura et al.
    Cyanobacteria cope with both predictable day/night changes and natural fluctuations in light during the day by adjusting the expression dynamics of circadian-clock-controlled genes via a network of transcriptional regulators.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Structural determinants of voltage-gating properties in calcium channels

    Monica L Fernández-Quintero et al.
    Structure modeling, site-directed mutagenesis, and current recordings revealed the mechanism by which stabilization of voltage sensors in the resting and activated states determines the gating properties of the CaV1.1 calcium channel.