88 results found
    1. Cell Biology
    2. Developmental Biology

    Mitochondrial Ca2+ uptake by the voltage-dependent anion channel 2 regulates cardiac rhythmicity

    Hirohito Shimizu, Johann Schredelseker ... Jau-Nian Chen
    Enhancing mitochondrial Ca2+ uptake effectively suppresses aberrant Ca2+ induced arrhythmogenic events in zebrafish, mouse and human cardiomyocytes, demonstrating a critical role for mitochondria in the regulation of cardiac rhythmicity.
    1. Structural Biology and Molecular Biophysics

    Structural relationship between the putative hair cell mechanotransduction channel TMC1 and TMEM16 proteins

    Angela Ballesteros, Cristina Fenollar-Ferrer, Kenton Jon Swartz
    The structural relationship between TMC and TMEM16 proteins provides insight into the structure and functional mechanisms of the mechanotransduction channel complex in hair cells.
    1. Neuroscience

    Complexes of vertebrate TMC1/2 and CIB2/3 proteins form hair-cell mechanotransduction cation channels

    Arnaud PJ Giese, Wei-Hsiang Weng ... Zubair M Ahmed
    Complexes formed by calcium- and integrin-binding proteins 2 and 3 and transmembrane channel-like proteins 1 and 2 are essential for vertebrate hearing and balance and for fish lateral line function.
    1. Structural Biology and Molecular Biophysics

    TMEM16 and OSCA/TMEM63 proteins share a conserved potential to permeate ions and phospholipids

    Augustus J Lowry, Pengfei Liang ... Yang Zhang
    Proteins in the Transmembrane Channel-Scramblase (TCS) superfamily share an evolutionarily conserved ability to permeate ions and phospholipids, challenging distinctions between ion channels and lipid scramblases.
    1. Structural Biology and Molecular Biophysics

    Structure of a TRPM2 channel in complex with Ca2+ explains unique gating regulation

    Zhe Zhang, Balázs Tóth ... László Csanády
    The 3Å structure and correlated functional analysis of the TRPM2 cation channel from Nematostella vectensis shed light on the molecular mechanisms of TRPM2 regulation by intra- and extracellular Ca2+, and of inactivation of human TRPM2.
    1. Structural Biology and Molecular Biophysics

    Conservation of the cooling agent binding pocket within the TRPM subfamily

    Kate Huffer, Matthew CS Denley ... Kenton J Swartz
    The cooling agent pocket in TRPM8 is conserved in a subset of other TRPM channels and the cooling agent icilin can regulate opening of TRPM4 channels in response to calcium and voltage.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanisms of gating in the calcium-activated chloride channel bestrophin

    Alexandria N Miller, George Vaisey, Stephen B Long
    Cryo-EM structures of the gating cycle of bestrophin reveal the molecular underpinnings of activation and inactivation gating in this calcium-activated chloride channel and reveal a surprisingly wide pore.
    1. Plant Biology

    A dual function of the IDA peptide in regulating cell separation and modulating plant immunity at the molecular level

    Vilde Olsson Lalun, Maike Breiden ... Melinka A Butenko
    A molecular investigation on the role of the peptide ligand inflorescence deficient in abscission (IDA) in regulating immunity and development during cell separation in Arabidopsis thaliana.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures and functional properties of CALHM channels of the human placenta

    Katarzyna Drożdżyk, Marta Sawicka ... Raimund Dutzler
    Members of the calcium homeostasis modulator family expressed in the placenta form large channels with unknown activation properties that harbor a lipid bilayer on the inside of a cylindrical pore.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structures reveal gatekeeping of the mitochondrial Ca2+ uniporter by MICU1-MICU2

    Chongyuan Wang, Agata Jacewicz ... Stephen Barstow Long
    Cryo-EM structures reveal that MICU1-MICU2 operates like a regulatable toxin to block the pore of the mitochondrial calcium uniporter and confer Ca2+-dependent control.

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