162 results found
    1. Cell Biology
    2. Neuroscience

    FcγRIIb-SHIP2 axis links Aβ to tau pathology by disrupting phosphoinositide metabolism in Alzheimer's disease model

    Tae-In Kam et al.
    By binding to Fc gamma receptor IIb, amyloid beta induces a series of phosphorylation events that mediate the damaging effects of hyperphosphorylated tau proteins in Alzheimer's disease.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    PIP2 depletion promotes TRPV4 channel activity in mouse brain capillary endothelial cells

    Osama F Harraz et al.
    TRPV4 channels in brain capillaries are suppressed by the phosphoinositide PIP2 and activated by receptor agonists implicated in neurovascular coupling.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Reciprocal regulation among TRPV1 channels and phosphoinositide 3-kinase in response to nerve growth factor

    Anastasiia Stratiievska et al.
    A dual-color TIRFM study reveals a new form of inflammatory regulation, in which a lipid kinase and ion channel reciprocally regulate each other to amplify the response to painful stimuli.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Phosphoinositides regulate force-independent interactions between talin, vinculin, and actin

    Charlotte F Kelley et al.
    In vitro reconstitution of the core focal adhesion proteins talin and vinculin with actin reveals lipid-dependent release of autoinhibition.
    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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Membrane characteristics tune activities of endosomal and autophagic human VPS34 complexes

    Yohei Ohashi et al.
    The lipid kinase VPS34 complexes I and II are both activated by unsaturation of substrate and non-substrate lipids, curvature, electrostatics and polyphosphoinositides, which play roles in localisation and cellular function.
    1. Cell Biology

    Dynein-mediated transport and membrane trafficking control PAR3 polarised distribution

    Julie Jouette et al.
    In Drosophila oocytes, the exclusion of the scaffold protein PAR3 from the posterior cortex depends on PAR1 and endocytosis, while its anterior localisation requires microtubules and recycling endosomes.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Electrostatic anchoring precedes stable membrane attachment of SNAP25/SNAP23 to the plasma membrane

    Pascal Weber et al.
    A step of contact establishment preceding stable membrane attachment by palmitoylation is identified.
    1. Structural Biology and Molecular Biophysics

    A Sec14-like phosphatidylinositol transfer protein paralog defines a novel class of heme-binding proteins

    Danish Khan et al.
    A new class of fungal hemoproteins is described that emphasizes the versatility of the Sec14-fold for translating binding of chemically distinct ligands to control of diverse sets of cellular activities.
    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.

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