1,117 results found
    1. Neuroscience

    Associative learning drives longitudinally graded presynaptic plasticity of neurotransmitter release along axonal compartments

    Aaron Stahl, Nathaniel C Noyes ... Seth M Tomchik
    Experience alters neurotransmitter release from different axonal compartments in different ways, allowing a set of neurons to coherently modulate behavior through diverse actions on multiple downstream circuits.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    Organic electrochemical transistor arrays for real-time mapping of evoked neurotransmitter release in vivo

    Kai Xie, Naixiang Wang ... Peng Shi
    An implantable device based on organic electrochemical transistors is developed for quantitative mapping of neurotransmitter release across multiple brain regions, revealing a cross-talk between the mesolimbic and nigrostriatal dopaminergic pathways.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Mechanistic insights into neurotransmitter release and presynaptic plasticity from the crystal structure of Munc13-1 C1C2BMUN

    Junjie Xu, Marcial Camacho ... Josep Rizo
    The crystal structure of a large C-terminal fragment of Munc13-1 provides a key framework to understand how Munc13-1 mediates neurotransmitter release and presynaptic plasticity.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Re-examining how complexin inhibits neurotransmitter release

    Thorsten Trimbuch, Junjie Xu ... Christian Rosenmund
    Challenging a widespread model, biophysical and electrophysiological experiments suggest a new mechanism whereby complexins inhibit neurotransmitter release through electrostatic repulsion between their accessory helix and the membranes.
    1. Neuroscience

    Calcium dependence of neurotransmitter release at a high fidelity synapse

    Abdelmoneim Eshra, Hartmut Schmidt ... Stefan Hallermann
    The Ca2+-dependence of vesicle priming, fusion, and replenishment at cerebellar mossy fiber boutons show a prominent Ca2+-dependent priming step, a shallow non-saturating dose-response curve up to 50 µM, and little Ca2+-dependence of sustained vesicle replenishment.
    1. Genetics and Genomics
    2. Neuroscience

    The E3 ligase Thin controls homeostatic plasticity through neurotransmitter release repression

    Martin Baccino-Calace, Katharina Schmidt, Martin Müller
    An electrophysiology-based genetic screen in Drosophila identified a role for the E3 ligase Thin in presynaptic homeostatic plasticity.
    1. Neuroscience

    Kv3.3 subunits control presynaptic action potential waveform and neurotransmitter release at a central excitatory synapse

    Amy Richardson, Victoria Ciampani ... Ian D Forsythe
    The Kv3.3 potassium channel subunit is necessary and sufficient to permit presynaptic location and accelerated repolarisation of the presynaptic action potential, thereby conserving resources and enhancing accuracy of timing information on transmission at the calyx of Held excitatory synapse.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Membrane bridging by Munc13-1 is crucial for neurotransmitter release

    Bradley Quade, Marcial Camacho ... Josep Rizo
    Cryo-electron tomography, reconstitution, and electrophysiological data show that a fundamental function of Munc13-1 is to bridge synaptic vesicles to the presynaptic plasma membrane.
    1. Neuroscience

    Control of neurotransmitter release by two distinct membrane-binding faces of the Munc13-1 C1C2B region

    Marcial Camacho, Bradley Quade ... Christian Rosenmund
    Two different binding modes of the Munc13-1 C­1C2B region govern synaptic vesicle priming and neurotransmitter release probability.
    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.

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