699 results found
    1. Structural Biology and Molecular Biophysics

    The molecular basis for an allosteric inhibition of K+-flux gating in K2P channels

    Susanne Rinné, Aytug K Kiper ... Niels Decher
    A combined systematic alanine scanning and molecular modelling approach reveals the molecular basis for an allosteric inhibition mechanism of K+-flux gating in K2P channels.
    1. Structural Biology and Molecular Biophysics

    Distinct gating mechanisms revealed by the structures of a multi-ligand gated K+ channel

    Chunguang Kong, Weizhong Zeng ... Youxing Jiang
    Structural and functional studies of a potassium ion channel that is opened and closed by different ligands have revealed a novel gating mechanism.
    1. Structural Biology and Molecular Biophysics

    Activation of a nucleotide-dependent RCK domain requires binding of a cation cofactor to a conserved site

    Celso M Teixeira-Duarte, Fátima Fonseca, João H Morais-Cabral
    Cations are essential cofactors in the ATP activation mechanism of the KtrAB cation channel and appear to be cofactors of many other nucleotide-dependent RCK domains.
    1. Structural Biology and Molecular Biophysics

    ER-luminal [Ca2+] regulation of InsP3 receptor gating mediated by an ER-luminal peripheral Ca2+-binding protein

    Horia Vais, Min Wang ... Don-On Daniel Mak
    Calcium release from the endoplasmic reticulum through the IP3 receptor ion channel is strongly regulated by a calcium-binding protein in the lumen of the endoplasmic reticulum.
    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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structures in multiple conformations reveal distinct transition metal and proton pathways in an Nramp transporter

    Aaron T Bozzi, Christina M Zimanyi ... Rachelle Gaudet
    Nramp-family transporters adapt a common fold to a novel mechanism in which the spatial and temporal separation of like-charge transition metal and proton co-substrates circumvents the expected electrostatic repulsion.
    1. Computational and Systems Biology

    Dynamics of co-substrate pools can constrain and regulate metabolic fluxes

    Robert West, Hadrien Delattre ... Orkun S Soyer
    Mathematical analyses explore the impact of co-substrate cycling on the dynamics of cellular metabolism, and demonstrate that these dynamics can limit cellular fluxes and that co-substrate pool dynamics can be regulated to regulate fluxes.
    1. Structural Biology and Molecular Biophysics

    Structural dynamics determine voltage and pH gating in human voltage-gated proton channel

    Shuo Han, Sophia Peng ... Shizhen Wang
    Visualization of the real-time conformational transitions of the human voltage-gated proton channel hHv1 provided novel insights into how voltage and pH gradients modify the dynamic behaviors of channel structures to control proton flow across membrane.
    1. Physics of Living Systems

    A minimal self-organisation model of the Golgi apparatus

    Quentin Vagne, Jean-Patrick Vrel, Pierre Sens
    An unbiased model for the self-organisation of the Golgi apparatus displays either anterograde vesicular transport or cisternal maturation depending on ratios of budding, fusion and biochemical conversion rates.
    1. Immunology and Inflammation

    ER-to-lysosome Ca2+ refilling followed by K+ efflux-coupled store-operated Ca2+ entry in inflammasome activation and metabolic inflammation

    Hyereen Kang, Seong Woo Choi ... Myung-Shik Lee
    The role of lysosomal Ca2+ flux associated with K+ efflux, a well-known event in inflammasome activation in metabolic inflammation and inflammasome activation, has been presented.

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