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    1. Neuroscience

    Phorbolester-activated Munc13-1 and ubMunc13-2 exert opposing effects on dense-core vesicle secretion

    Sébastien Houy, Joana S Martins ... Jakob Balslev Sørensen
    The priming protein ubMunc13-2 and Synaptotagmin-7 cooperate with phorbolesters/diacylglycerol to stimulate vesicle priming in adrenal chromaffin cells, whereas phorbolesters/diacylglycerol interacting with Munc13-1 inhibit vesicle fusion, which identifies opposing functions of these two Munc13 proteins.
    1. Neuroscience

    Visualizing synaptic dopamine efflux with a 2D composite nanofilm

    Chandima Bulumulla, Andrew T Krasley ... Abraham G Beyene
    A technology for measuring release of dopamine simultaneously from hundreds of release sites at the spatial resolution of a synapse is provided.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Extracellular electron transfer increases fermentation in lactic acid bacteria via a hybrid metabolism

    Sara Tejedor-Sanz, Eric T Stevens ... Maria L Marco
    Lactic acid bacteria engage a hybrid metabolism which blends features of fermentation and respiration when they perform extracellular electron transfer.
    1. Cell Biology
    2. Neuroscience

    TRPM7 is critical for short-term synaptic depression by regulating synaptic vesicle endocytosis

    Zhong-Jiao Jiang, Wenping Li ... Liang-Wei Gong
    Electrophysiological and live-cell imaging analyses identify a presynaptic function of Ca2+ influx via transient receptor potential melastatin 7 (TRPM7) channels.
    1. Neuroscience
    2. Physics of Living Systems

    The neuronal calcium sensor Synaptotagmin-1 and SNARE proteins cooperate to dilate fusion pores

    Zhenyong Wu, Nadiv Dharan ... Erdem Karatekin
    During neurotransmitter release, calcium-induced membrane insertion of the C2B domain of Synaptotagmin re-orients the bound SNARE complex which dilates the fusion pore in a mechanical lever action.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Psychomotor impairments and therapeutic implications revealed by a mutation associated with infantile Parkinsonism-Dystonia

    Jenny I Aguilar, Mary Hongying Cheng ... Aurelio Galli
    A dopamine transporter deficiency syndrome (DTDS)-linked mutation, R445C, underlies dopamine dysfunction and, more broadly, the clinical phenotypes shared by DTDS and Parkinson’s disease.
    1. Neuroscience

    Synaptotagmin-7 places dense-core vesicles at the cell membrane to promote Munc13-2- and Ca2+-dependent priming

    Bassam Tawfik, Joana S Martins ... Jakob Balslev Sørensen
    Synaptotagmin-7 acts synergistically with synaptotagmin-1 by placing vesicles close to the plasma membrane within reach of the SNARE/Munc13-complex, supporting their priming and setting the stage for fast and slow fusion.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    Phasic oxygen dynamics confounds fast choline-sensitive biosensor signals in the brain of behaving rodents

    Ricardo M Santos, Anton Sirota
    Fast fluctuations of oxygen, linked to behavioral and neural dynamics in vivo, cause phasic transients is amperometry-measured cholinergic signals via the mechanism of non-steady-state enzyme kinetics in the choline-oxidase-based biosensor.
    1. Neuroscience

    Rapid purification and metabolomic profiling of synaptic vesicles from mammalian brain

    Lynne Chantranupong, Jessica L Saulnier ... Bernardo L Sabatini
    Extensive mass spectrometry-based profiling of polar metabolites within synaptic vesicles that are rapidly isolated either from cultured mouse neurons or directly from mouse brains reveals their neurotransmitter composition.
    1. Cell Biology
    2. Neuroscience

    Synaptotagmin-1 is the Ca2+ sensor for fast striatal dopamine release

    Aditi Banerjee, Jinoh Lee ... Pascal S Kaeser
    Genetic and electrophysiological analyses reveal calcium-triggering mechanisms for dopamine release in the striatum that may enable fast and slow dopamine coding.