147 results found
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Dynamic change of electrostatic field in TMEM16F permeation pathway shifts its ion selectivity

    Wenlei Ye, Tina W Han ... Lily Yeh Jan
    TMEM16F shifts its ion selectivity in response to change of intracellular Ca2+, membrane potential and ionic strength.
    1. Cell Biology

    Functional coupling between TRPV4 channel and TMEM16F modulates human trophoblast fusion

    Yang Zhang, Pengfei Liang ... Huanghe Yang
    A previously unknown calcium channel in human placental trophoblasts provides a calcium source for activating TMEM16F lipid scramblase that flip-flops phospholipids on cell surface, demonstrating a physiological mechanism that helps to understand how lipid dynamics regulates cell fusion.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A comprehensive search for calcium binding sites critical for TMEM16A calcium-activated chloride channel activity

    Jason Tien, Christian J Peters ... Huanghe Yang
    The identification of four acidic amino acids as potential calcium-binding residues in the TMEM16A calcium-activated chloride channel furthers the molecular understanding of this ion channel family.
    1. Structural Biology and Molecular Biophysics

    Subdued, a TMEM16 family Ca2+-activated Cl channel in Drosophila melanogaster with an unexpected role in host defense

    Xiu Ming Wong, Susan Younger ... Lily Y Jan
    A newly characterized calcium-activated chloride channel has been implicated in the immune system of Drosophila, shedding light on an enigmatic family of transmembrane proteins that are ubiquitous in nature.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Identification of a lipid scrambling domain in ANO6/TMEM16F

    Kuai Yu, Jarred M Whitlock ... H Criss Hartzell
    The amino acids that are necessary for phospholipid scrambling by ANO6/TMEM16F can, via domain swapping, confer scrambling activity to the chloride ion channel ANO1 that normally does not scramble phospholipids.
    1. Structural Biology and Molecular Biophysics

    Structural basis for anion conduction in the calcium-activated chloride channel TMEM16A

    Cristina Paulino, Yvonne Neldner ... Raimund Dutzler
    Single-particle cryo-EM and electrophysiology studies of the chloride channel TMEM16A reveals the structural basis for anion conduction and uncover its relationship to lipid scramblases of the same family.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures and functional characterization of the murine lipid scramblase TMEM16F

    Carolina Alvadia, Novandy K Lim ... Cristina Paulino
    While activated by a common mechanism, both functions in TMEM16F - lipid scrambling and ion conduction - are likely mediated by alternate protein conformations that are at equilibrium in the ligand-bound state.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Lipids and ions traverse the membrane by the same physical pathway in the nhTMEM16 scramblase

    Tao Jiang, Kuai Yu ... Emad Tajkhorshid
    A concerted approach employing equilibrium and biased molecular simulations, electrophysiology, mutagenesis, and functional assays reveals, in atomic details, the mechanism and pathway for transport of phospholipids and ions by a lipid scramblase.
    1. Structural Biology and Molecular Biophysics

    Structural basis of Ca2+-dependent activation and lipid transport by a TMEM16 scramblase

    Maria E Falzone, Jan Rheinberger ... Alessio Accardi
    Structures of a TMEM16 phospholipid scramblase reveal that its Ca2+-dependent activation entails global conformational changes and how these rearrangements affect the membrane to enable transbilayer lipid transfer.
    1. Neuroscience

    TMEM16B regulates anxiety-related behavior and GABAergic neuronal signaling in the central lateral amygdala

    Ke-Xin Li, Mu He ... Lily Yeh Jan
    SOM+ GABAergic neuronal signaling and inhibitory transmission in the central lateral amygdala is regulated by TMEM16B, which is also involved in fear and anxiety-like behaviors.

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