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

    Synaptic proteins promote calcium-triggered fast transition from point contact to full fusion

    Jiajie Diao, Patricia Grob ... Axel T Brunger
    A combination of advanced optical imaging and cryogenic electron microscopy has been used to explore membrane fusion in a synthetic system and provide new insights into neurotransmitter release.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Influenza-virus membrane fusion by cooperative fold-back of stochastically induced hemagglutinin intermediates

    Tijana Ivanovic, Jason L Choi ... Stephen C Harrison
    Long-lived intermediate states formed by glycoprotein catalysts are an essential part of the process used by influenza virus particles to infect cells.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    SEC24A deficiency lowers plasma cholesterol through reduced PCSK9 secretion

    Xiao-Wei Chen, He Wang ... David Ginsburg
    COPII vesicles regulate the metabolism of cholesterol through the selective transport of secretory proteins.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Native α-synuclein induces clustering of synaptic-vesicle mimics via binding to phospholipids and synaptobrevin-2/VAMP2

    Jiajie Diao, Jacqueline Burré ... Axel T Brunger
    Experiments on synthetic models of synaptic vesicles have shed new light on the role of the protein α-synuclein in the central nervous system.
    1. Neuroscience

    A longitudinal study of Caenorhabditis elegans larvae reveals a novel locomotion switch, regulated by Gαs signaling

    Stanislav Nagy, Charles Wright ... David Biron
    C. elegans exhibits two distinct behavioural macro-states, active and quiet wakefulness, and protein kinase A regulates switching between these two states.
    1. Cell Biology

    An essential and NSF independent role for α-SNAP in store-operated calcium entry

    Yong Miao, Cathrine Miner ... Monika Vig
    α-SNAP mediated rearrangement of Stim1 and Orai1 molecules within CRAC channel clusters is required for store-operated calcium entry.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The ER–Golgi intermediate compartment is a key membrane source for the LC3 lipidation step of autophagosome biogenesis

    Liang Ge, David Melville ... Randy Schekman
    A cell-free biochemical assay for protein lipidation identifies the ER–Golgi intermediate compartment as a key early station in the formation of an autophagosome.
    1. Cell Biology
    2. Neuroscience

    UNC-13L, UNC-13S, and Tomosyn form a protein code for fast and slow neurotransmitter release in Caenorhabditis elegans

    Zhitao Hu, Xia-Jing Tong, Joshua M Kaplan
    Long and short variants of a protein called UNC-13, assisted by another called Tomosyn, regulate the timing of synaptic vesicle release in C. elegans.
    1. Neuroscience

    Ultrafast endocytosis at Caenorhabditis elegans neuromuscular junctions

    Shigeki Watanabe, Qiang Liu ... Erik M Jorgensen
    Optogenetics has revealed that synaptic vesicles can be recycled extremely rapidly in nematodes, indicating that existing models for how synapses 'reload' may need to be revised.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The structure of the COPII transport-vesicle coat assembled on membranes

    Giulia Zanetti, Simone Prinz ... John AG Briggs
    A structure of the complete, membrane bound, COPII coat solved by sub-tomogram averaging reveals the arrangement of all protein subunits on the membrane and suggests a mechanism for coating heterogeneously-shaped carriers.

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