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

    Cryo-EM structure of the benzodiazepine-sensitive α1β1γ2S tri-heteromeric GABAA receptor in complex with GABA

    Swastik Phulera, Hongtao Zhu ... Eric Gouaux
    Structure of the triheteromeric α1β1γ2S GABAA receptor in complex with GABA illuminates the principles of receptor assembly and agonist binding.
    1. Structural Biology and Molecular Biophysics

    Molecular principles of assembly, activation, and inhibition in epithelial sodium channel

    Sigrid Noreng, Richard Posert ... Isabelle Baconguis
    The in-depth structural and functional work provide a deeper understanding as to how the epithelial sodium channel is a heteromeric ion channel that is regulated by Na+ and proteolysis.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Architecture and structural dynamics of the heteromeric GluK2/K5 kainate receptor

    Nandish Khanra, Patricia MGE Brown ... Joel R Meyerson
    Structures of the GluK2/K5 kainate receptor reveal the heteromer architecture and how the receptor organizes in apo, antagonist-bound, and desensitized states.
    1. Structural Biology and Molecular Biophysics

    Ancestral acetylcholine receptor β-subunit forms homopentamers that prime before opening spontaneously

    Christian JG Tessier, Raymond M Sturgeon ... Corrie JB daCosta
    Reconstructed ancestral muscle-type acetylcholine receptor β-subunits readily form homopentameric ion channels that open spontaneously, and display functional hallmarks of the modern-day heteropentameric receptor despite being devoid of canonical agonist-binding sites.
    1. Neuroscience

    Shank promotes action potential repolarization by recruiting BK channels to calcium microdomains

    Luna Gao, Jian Zhao ... Joshua M Kaplan
    Shank promotes functional coupling between CaV1 calcium channels and BK potassium channels.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    The heteromeric PC-1/PC-2 polycystin complex is activated by the PC-1 N-terminus

    Kotdaji Ha, Mai Nobuhara ... Markus Delling
    Soluble fragments cleaved from the N-terminus of PC-1 activate the PC-1/PC-2 heteromeric polycystin channel, describing for the first time that the N-terminus itself is an endogenous ligand.
    1. Biochemistry and Chemical Biology

    A synthetic method to assay polycystin channel biophysics

    Megan Larmore, Orhi Esarte Palomero ... Paul G DeCaen
    Synthetic polycystin proteins self-assemble as function channels when reconstituted in lipid vesicles.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structures of the DCPIB-inhibited volume-regulated anion channel LRRC8A in lipid nanodiscs

    David M Kern, SeCheol Oh ... Stephen G Brohawn
    The basis for small-molecule block, insights into gating, and an unexpected architectural role for the lipid membrane are revealed in structures of the volume regulated anion channel LRRC8A.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures of an LRRC8 chimera with native functional properties reveal heptameric assembly

    Hirohide Takahashi, Toshiki Yamada ... Erkan Karakas
    The cryo-electron microscopy structures of an LRRC8C chimera with native channel properties reveal the diverse oligomeric assembly and suggest that lipids may play a role in gating in volume-regulated anion channels.
    1. Cell Biology

    Distinct roles for two Caenorhabditis elegans acid-sensing ion channels in an ultradian clock

    Eva Kaulich, Trae Carroll ... Denise S Walker
    Two acid-sensing members of the degenerin/epithelial sodium channel family play distinct roles in controlling different aspects of rhythmic proton and calcium oscillations in the nematode intestine.

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