2,091 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Divergent Cl- and H+ pathways underlie transport coupling and gating in CLC exchangers and channels

    Lilia Leisle, Yanyan Xu ... Simon Bernèche
    Combined simulations and electrophysiological experiments show that the CLC channels and exchangers form physically distinct and evolutionarily conserved pathways through which Cl- and H+ ions move when crossing biological membranes.
    1. Structural Biology and Molecular Biophysics

    A CLC-ec1 mutant reveals global conformational change and suggests a unifying mechanism for the CLC Cl/H+ transport cycle

    Tanmay S Chavan, Ricky C Cheng ... Merritt Maduke
    Crystallography together with electron-resonance spectroscopy, molecular-dynamics simulations, and transport measurements reveal the molecular details of protein conformational change, and how this change contributes to function in a CLC-type chloride/proton exchanger.
    1. Developmental Biology

    The Cl--channel TMEM16A is involved in the generation of cochlear Ca2+ waves and promotes the refinement of auditory brainstem networks in mice

    Alena Maul, Antje Kathrin Huebner ... Christian A Hübner
    Ano1 deletion disrupts Ca2+ waves within Kölliker’s organ, reduces burst-firing activity and frequency selectivity of auditory brainstem neurons in the medial nucleus of the trapezoid body, and impairs the functional refinement of its projections to the lateral superior olive.
    1. Structural Biology and Molecular Biophysics

    Structure of the CLC-1 chloride channel from Homo sapiens

    Eunyong Park, Roderick MacKinnon
    A cryo-electron microscopy study of the human CLC-1 chloride ion channel reveals the structural basis of why some CLC proteins function as passive chloride channels whereas others function as an active proton-chloride antiporters.
    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. 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. 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. Neuroscience
    2. Structural Biology and Molecular Biophysics

    CryoEM structures of the human CLC-2 voltage-gated chloride channel reveal a ball-and-chain gating mechanism

    Mengyuan Xu, Torben Neelands ... Merritt Maduke
    A combination of high-resolution structure determination, electrophysiology, and MD simulations reveal fundamental insight into the molecular function of voltage-gated chloride channels.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Zika virus remodels and hijacks IGF2BP2 ribonucleoprotein complex to promote viral replication organelle biogenesis

    Clément Mazeaud, Stefan Pfister ... Laurent Chatel-Chaix
    Through interactions with viral RNA and NS5, Zika virus changes the composition of the IGF2BP2-containing ribonucleoprotein complex for the benefit of the viral RNA amplification step of its life cycle.
    1. Cell Biology

    Metabolic flexibility via mitochondrial BCAA carrier SLC25A44 is required for optimal fever

    Takeshi Yoneshiro, Naoya Kataoka ... Shingo Kajimura
    Genetic and cellular studies in rodents found branched-chain amino acids are critical nutrients that are transported and oxidized in the mitochondria through their carrier MBC for optimal febrile responses.

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