11 results found
    1. Cell Biology
    2. Developmental Biology

    Apical targeting of the formin Diaphanous in Drosophila tubular epithelia

    Tal Rousso, Annette M Shewan ... Ben-Zion Shilo
    Synergistic interactions with PI(4,5)P2 and activated Rho1, which are enriched at the apical membrane of tubular organs, facilitate tight apical targeting of the formin Diaphanous.
    1. Cell Biology

    A role of OCRL in clathrin-coated pit dynamics and uncoating revealed by studies of Lowe syndrome cells

    Ramiro Nández, Daniel M Balkin ... Pietro De Camilli
    Studies of Lowe syndrome patient cells, which lack the inositol 5-phosphatase OCRL, suggest that a defect in endocytosis plays a role in the pathological manifestations of the disease.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Synchronized HIV assembly by tunable PIP2 changes reveals PIP2 requirement for stable Gag anchoring

    Frauke Mücksch, Vibor Laketa ... Hans-Georg Kräusslich
    PI(4,5)P2 plays a much broader role during the HIV-1 particle assembly process than assumed; it is indispensable not only for recruitment of Gag to the plasma membrane but also for the maintenance of Gag assemblies.
    1. Cell Biology

    Myotubularin related protein-2 and its phospholipid substrate PIP2 control Piezo2-mediated mechanotransduction in peripheral sensory neurons

    Pratibha Narayanan, Meike Hütte ... Manuela Schmidt
    Local Mtmr2 activity and PI(3,5)P2 abundance dynamically control Piezo2-dependent mechanotransduction in peripheral sensory neurons.
    1. Cell Biology

    The Caenorhabditis elegans Tubby homolog dynamically modulates olfactory cilia membrane morphogenesis and phospholipid composition

    Danielle DiTirro, Alison Philbrook ... Piali Sengupta
    A Tubby protein regulates ciliary membrane morphology and phosphoinositide composition in a context-dependent manner.
    1. Biochemistry and Chemical Biology

    Agonist-mediated switching of ion selectivity in TPC2 differentially promotes lysosomal function

    Susanne Gerndt, Cheng-Chang Chen ... Christian Grimm
    The lysosomal ion channel TPC2 emerges as an example of an ion channel in which ion selectivity is not fixed but rather agonist-selective.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

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

    Charlotte F Kelley, Thomas Litschel ... Naoko Mizuno
    In vitro reconstitution of the core focal adhesion proteins talin and vinculin with actin reveals lipid-dependent release of autoinhibition.
    1. Cell Biology

    Lipid kinases VPS34 and PIKfyve coordinate a phosphoinositide cascade to regulate retriever-mediated recycling on endosomes

    Sai Srinivas Panapakkam Giridharan, Guangming Luo ... Lois S Weisman
    The synthesis of multiple phosphoinositides function in an ordered pathway to promote recycling of some receptors to the plasma membrane.
    1. Cell Biology
    2. Developmental Biology

    Hypoxia controls plasma membrane targeting of polarity proteins by dynamic turnover of PI4P and PI(4,5)P2

    Juan Lu, Wei Dong ... Yang Hong
    When challenged by energetic stresses triggered by hypoxia and ATP inhibition, plasma membrane PI4P and PIP2 in cells undergo dramatic turnovers that have profound impact on many cellular processes including electrostatic PM targeting of numerous polybasic proteins.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Membrane-mediated dimerization potentiates PIP5K lipid kinase activity

    Scott D Hansen, Albert A Lee ... Jay T Groves
    Dimerization promotes nonlinear kinetics in PIP5K-dependent lipid phosphorylation reactions.

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