4,288 results found
    1. Neuroscience

    The readily-releasable pool dynamically regulates multivesicular release

    Jada H Vaden et al.
    The number of neurotransmitter vesicles released into the synaptic cleft is regulated by the size of the readily-releasable pool upstream of release probability.
    1. Cell Biology
    2. Neuroscience

    Clarinet (CLA-1), a novel active zone protein required for synaptic vesicle clustering and release

    Zhao Xuan et al.
    Clarinet, a novel C. elegans active zone protein with homology to vertebrate Piccolo and Rim, uses its different isoforms for diverse functions, including synaptic vesicle clustering, vesicle release and synaptogenesis.
    1. Neuroscience

    Elevated synaptic vesicle release probability in synaptophysin/gyrin family quadruple knockouts

    Mathan K Raja et al.
    Synaptophysins and gyrins dampen synaptic strength selectively at low frequencies, hinting that synaptic transmission may play a frequency filtering role in biological computation that is more general than currently envisioned.
    1. Neuroscience

    Myosin V functions as a vesicle tether at the plasma membrane to control neurotransmitter release in central synapses

    Dario Maschi et al.
    Synaptic vesicles undergo reversible tethering at the plasma membrane which is activity- and myosin V- dependent.
    1. Cell Biology
    2. Neuroscience

    Synaptotagmin 1 directs repetitive release by coupling vesicle exocytosis to the Rab3 cycle

    Yunsheng Cheng et al.
    Experiments in C. elegans reveal how synaptotagmin and Rab3, the 'yin and yang' of synapses, control whether transmitter vesicles remain docked at the presynaptic membrane or release their contents into the synapse.
    1. Neuroscience

    Drosophila Synaptotagmin 7 negatively regulates synaptic vesicle release and replenishment in a dosage-dependent manner

    Zhuo Guan et al.
    Drosophila synaptotagmin 7 functions to restrict SV availability and release, but does not act as the Ca2+ sensor mediating the asynchronous release and facilitation remaining in synaptotagmin 1 mutants.
    1. Neuroscience

    Position of UNC-13 in the active zone regulates synaptic vesicle release probability and release kinetics

    Keming Zhou et al.
    The precise position of UNC-13 at the active zone near a synapse depends on the N-terminus of the protein, and the C2A domain in particular, and is essential for accelerating neurotransmitter release.
    1. Cell Biology
    2. Neuroscience

    A proline-rich motif on VGLUT1 reduces synaptic vesicle super-pool and spontaneous release frequency

    Xiao Min Zhang et al.
    In mammals, the vesicular glutamate transporter 1 acquired a proline-rich sequence that negatively regulates the spontaneous release of glutamate by reducing the exchange of synaptic vesicles along the axon.
    1. Neuroscience

    Heterodimerization of UNC-13/RIM regulates synaptic vesicle release probability but not priming in C. elegans

    Haowen Liu et al.
    RIM binding UNC-13L C2A domain releases UNC-13L from an autoinhibitory homodimeric complex to become fusion-competent, and regulates probability of synaptic vesicle release in the post-priming process.
    1. Structural Biology and Molecular Biophysics

    Complexin inhibits spontaneous release and synchronizes Ca2+-triggered synaptic vesicle fusion by distinct mechanisms

    Ying Lai et al.
    Building on previous work (Diao et al., 2012), we show that the mechanism by which complexin suppresses spontaneous fusion is distinct from the mechanism by which it synchronizes Ca2+-triggered fusion.

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