3,932 results found
    1. Structural Biology and Molecular Biophysics

    Gating mechanisms during actin filament elongation by formins

    Fikret Aydin et al.
    Formins slow elongation of actin filament by either sterically blocking the addition of actin subunits or flattening the helical twist of the filament end.
    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 et al.
    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. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the ATP-sensitive potassium channel illuminates mechanisms of assembly and gating

    Gregory M Martin et al.
    Single-particle cryo-electron microscopy reveals the first subnanometer structure of ATP-sensitive potassium (KATP) channels, which provides insight into the structural mechanisms of channel assembly and gating.
    1. Developmental Biology
    2. Evolutionary Biology

    Mating and male pheromone kill Caenorhabditis males through distinct mechanisms

    Cheng Shi et al.
    Male C. elegans die through two distinct mechanisms – mating-induced germline activation, and potent male pheromone toxicity – but the latter is unique to males of androdioecious species (made up of hermaphrodites and males).
    1. Structural Biology and Molecular Biophysics

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

    Chunguang Kong et al.
    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
    2. Neuroscience

    Photo-switchable tweezers illuminate pore-opening motions of an ATP-gated P2X ion channel

    Chloé Habermacher et al.
    The gating mechanism of trimeric ATP-gated P2X receptors has been explored using photo-switchable cross-linkers, via a versatile strategy that could be applied to other membrane proteins.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Coupled ion binding and structural transitions along the transport cycle of glutamate transporters

    Grégory Verdon et al.
    Crystal structures of an archaeal homologue of mammalian glutamate transporters in apo and ion-only bound outward- and inward-facing states reveal ion-coupled conformational changes supporting mechanisms of coupling, gating, and transport.
    1. Structural Biology and Molecular Biophysics

    Ligand recognition and gating mechanism through three ligand-binding sites of human TRPM2 channel

    Yihe Huang et al.
    High-resolution structures of human TRPM2 in different functional states provided the mechanism underlying ligand recognition, channel activation and inhibition.
    1. Neuroscience

    Circuit mechanisms encoding odors and driving aging-associated behavioral declines in Caenorhabditis elegans

    Sarah G Leinwand et al.
    Neurotransmission pathways from primary to secondary neurons encode odor and underlie age-related sensory behavioral declines.
    1. Neuroscience

    A Drosophila model of neuronal ceroid lipofuscinosis CLN4 reveals a hypermorphic gain of function mechanism

    Elliot Imler et al.
    Genetic analysis of a CLN4 Drosophila model suggests that the disease-causing alleles act as dominant gain of function mutations that cause CSPα oligomerization and impair secretory and prelysosomal trafficking.

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