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    1. Structural Biology and Molecular Biophysics

    Phosphoinositide-mediated oligomerization of a defensin induces cell lysis

    Ivan KH Poon et al.
    A novel innate defense mechanism of cell lysis involves the coordinated oligomerization of a defensin by interaction with the membrane lipid, phosphatidylinositol 4,5-bisphosphate.
    1. Neuroscience

    A positive feedback loop between Flower and PI(4,5)P2 at periactive zones controls bulk endocytosis in Drosophila

    Tsai-Ning Li et al.
    The interplay between the Flower Ca2+ channel and PI(4,5)P2 spatiotemporally couples synaptic vesicle exocytosis to activity-dependent bulk endocytosis and synaptic vesicle reformation from bulk endosomes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis for interdomain communication in SHIP2 providing high phosphatase activity

    Johanne Le Coq et al.
    The SHIP2 inositol phosphatase is an important upstream regulator of the Akt signaling pathway, which requires a catalytic core formed by the phosphatase domain tightly packed to a C2 domain for its function.
    1. Cell Biology

    Optimized Vivid-derived Magnets photodimerizers for subcellular optogenetics in mammalian cells

    Lorena Benedetti et al.
    eMags is an engineered photodimerizer pair for optogenetic modulation in mammalian cells that is especially suited for the manipulation of intracellular processes occurring in small volumes or subcellular organelles.
    1. Cell Biology

    CHIP as a membrane-shuttling proteostasis sensor

    Yannick Kopp et al.
    The mechanism is revealed that connects the protein degradation machinery to cellular membrane-bound compartments during proteostasis stress in mammalian cells.
    1. Cell Biology
    2. Computational and Systems Biology

    Akt phosphorylates insulin receptor substrate to limit PI3K-mediated PIP3 synthesis

    Alison L Kearney et al.
    Akt phosphorylates insulin receptor substrate to engage negative feedback and limit signal propagation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Key steps in unconventional secretion of fibroblast growth factor 2 reconstituted with purified components

    Julia P Steringer et al.
    The first reconstitution of an unconventional secretory mechanism uncovered the molecular mechanism by which Fibroblast Growth Factor 2 is secreted from mammalian cells.
    1. Cell Biology

    SAC1 degrades its lipid substrate PtdIns4P in the endoplasmic reticulum to maintain a steep chemical gradient with donor membranes

    James P Zewe et al.
    SAC1 is unable to adopt an efficient "trans" mode of action in living cells.
    1. Neuroscience

    A conserved morphogenetic mechanism for epidermal ensheathment of nociceptive sensory neurites

    Nan Jiang et al.
    Epidermal cells in vertebrates and invertebrates ensheath portions of somatosensory neurons via a conserved morphogenetic mechanism, and this ensheathment regulates morphogenesis and function of Drosophila nociceptive neurons.
    1. Cell Biology

    Two distinct mechanisms target the autophagy-related E3 complex to the pre-autophagosomal structure

    Kumi Harada et al.
    How the autophagy-related E3 complex localizes to pre-autophagosomal structures and a non-E3 function of the complex were revealed, significantly advancing our understanding of the nucleation step in autophagosome formation.