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    1. Neuroscience

    Physical determinants of vesicle mobility and supply at a central synapse

    Jason Seth Rothman et al.
    Hydrodynamic and steric interactions slow vesicle mobility and are predicted to ultimately limit vesicle supply to the active zone during sustained high-frequency signalling at a central synapse.
    1. Neuroscience

    RIM-BP2 primes synaptic vesicles via recruitment of Munc13-1 at hippocampal mossy fiber synapses

    Marisa M Brockmann et al.
    The active zone scaffold protein RIM-BP2 performs distinct functions in vesicle release at two hippocampal synapses, providing insights on how synapses express diversity in release properties.
    1. Cell Biology

    Disparate bone anabolic cues activate bone formation by regulating the rapid lysosomal degradation of sclerostin protein

    Nicole R Gould et al.
    Mechanical loading and the bone anabolic action of parathyroid hormone result in rapid, lysosomal degradation of sclerostin protein, revealing physiologically important post-translational control of this critical regulator of bone formation.
    1. Cell Biology
    2. Physics of Living Systems

    Centering and symmetry breaking in confined contracting actomyosin networks

    Niv Ierushalmi et al.
    Novel mechanisms for cellular centering and symmetry breaking involving persistent contractile actomyosin flows and their hydrodynamic interactions with the fluid cytosol are presented and studied using a minimal, reconstituted system.
    1. Cell Biology
    2. Neuroscience

    The synaptic ribbon is critical for sound encoding at high rates and with temporal precision

    Philippe Jean et al.
    The synaptic ribbon regulates calcium channel clustering and proper vesicle dynamics at cochlear inner hair cells to ensure precise sound encoding.
    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. Neuroscience

    RIM is essential for stimulated but not spontaneous somatodendritic dopamine release in the midbrain

    Brooks G Robinson et al.
    Midbrain dopamine neurons use sophisticated secretory machinery to establish specialized sites for action potential-evoked release of dopamine from their cell bodies and dendrites.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Activin A forms a non-signaling complex with ACVR1 and type II Activin/BMP receptors via its finger 2 tip loop

    Senem Aykul et al.
    The non-signaling complex formed by Activin A and ACVR1 is operant in vivo and is required to temper the degree of heterotopic ossification in the genetic disorder fibrodysplasia ossificans progressiva.
    1. Neuroscience

    Ultrafast endocytosis at Caenorhabditis elegans neuromuscular junctions

    Shigeki Watanabe et al.
    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. Neuroscience

    Spatiotemporal dynamics of multi-vesicular release is determined by heterogeneity of release sites within central synapses

    Dario Maschi, Vitaly A Klyachko
    Release site heterogeneity represents a previously unknown level of structural and functional organization within individual active zones in central synapses, which determines the spatiotemporal dynamics of multi-vesicular release.