21 results found
    1. Cell Biology
    2. Neuroscience

    Synaptojanin cooperates in vivo with endophilin through an unexpected mechanism

    Yongming Dong et al.
    The Sac1 phosphatase domain, rather than the proline-rich domain, plays an essential role in synaptojanin activity during endocytosis.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A structure of substrate-bound Synaptojanin1 provides new insights in its mechanism and the effect of disease mutations

    Jone Paesmans et al.
    Structural and biochemical data suggest a mechanism for the Synaptojanin1-catalysed reaction and the role of mutations in the onset of associated neurological diseases.
    1. Cell Biology
    2. Plant Biology

    Evolutionarily unique mechanistic framework of clathrin-mediated endocytosis in plants

    Madhumitha Narasimhan et al.
    The examination of the ultra-structure and in vivo dynamics of endocytosis in plants reveal plants unique actin-independent, clathrin-mediated endocytosis mechanisms to overcome their unique physiological properties.
    1. Neuroscience

    Analysis of protein phosphorylation in nerve terminal reveals extensive changes in active zone proteins upon exocytosis

    Mahdokht Kohansal-Nodehi et al.
    Global phosphoproteomic analysis in nerve terminal during exocytosis reveals 252 uniquely regulated phosphosites, highlighting complex regulation of active zone proteins at multiple sites and the role of specific kinases/phosphatases.
    1. Computational and Systems Biology

    Inferring joint sequence-structural determinants of protein functional specificity

    Andrew F Neuwald et al.
    A statistical approach for predicting non-active site residues responsible for allostery, cooperativity, or other subtle but functionally important interactions is described and applied to various protein families.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Dynamic clustering of dynamin-amphiphysin helices regulates membrane constriction and fission coupled with GTP hydrolysis

    Tetsuya Takeda et al.
    A new approach using combination of electron microscopy (EM) and high-speed atomic force microscopy (HS-AFM) clearly demonstrates dynamics of dynamin-amphiphysin complexes during membrane constriction and fission suggesting a novel 'clusterase' model of the dynamin-mediated membrane fission.
    1. Neuroscience

    LKB1 coordinates neurite remodeling to drive synapse layer emergence in the outer retina

    Courtney A Burger et al.
    LKB1 instructs the timing and location of synapse layer emergence in the outer retina by coordinating the regulation of pre- and postsynaptic neuron maturation and transport of synapse-associated proteins.
    1. Neuroscience

    Critical role for Piccolo in synaptic vesicle retrieval

    Frauke Ackermann et al.
    The active zone protein Piccolo regulates efficient recycling of SVs via Pra1 and Rab5 and is therefore critical for integrity and reliability of synaptic function.
    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. Biochemistry and Chemical Biology
    2. Cell Biology

    Proteomic mapping of cytosol-facing outer mitochondrial and ER membranes in living human cells by proximity biotinylation

    Victoria Hung et al.
    One minute biotinylation with APEX2 peroxidase in living cells identifies established and new components of mitochondrial and ER membranes; dataset intersection and overexpression screen identifies SYNJ2BP overexpression as inducing mitochondria-rough ER contacts.

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