15 results found
    1. Cell Biology
    2. Plant Biology

    The Arabidopsis SAC9 enzyme is enriched in a cortical population of early endosomes and restricts PI(4,5)P2 at the plasma membrane

    Alexis Lebecq, Mehdi Doumane ... Marie-Cécile Caillaud
    SAC9 prevents the accumulation of PI(4,5)P2 in intracellular compartments, thereby contributing to clathrin-mediated endocytosis at the plasma membrane and regulating the cortical localization of its protein partner SH3P2.
    1. Structural Biology and Molecular Biophysics

    TRPML1 gating modulation by allosteric mutations and lipids

    Ninghai Gan, Yan Han ... Youxing Jiang
    Design and characterization of allosteric mutations that recapitulate TRPML1 gating and structural insights into PI(4,5)P2 and sphingomyelin inhibition of TRPML1.
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    • Convincing
    1. Cell Biology

    A Rho signaling network links microtubules to PKD controlled carrier transport to focal adhesions

    Stephan A Eisler, Filipa Curado ... Angelika Hausser
    The small GTPase Rho connects GPCR signaling with PKD activity at TGN membranes and consequently anterograde trafficking to focal adhesions.
    1. Cell Biology

    Conformational specificity of opioid receptors is determined by subcellular location irrespective of agonist

    Stephanie E Crilly, Wooree Ko ... Manojkumar A Puthenveedu
    A GPCR activated by the same agonist engages different conformational biosensors at different subcellular locations, suggesting that location-based conformations drive spatial encoding of signaling.
    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. 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. Biochemistry and Chemical Biology
    2. Cell Biology

    Molecular basis of the PIP2-dependent regulation of CaV2.2 channel and its modulation by CaV β subunits

    Cheon-Gyu Park, Wookyung Yu, Byung-Chang Suh
    The anchoring properties of CaV β2 subunits to the plasma membrane determine the biophysical states of CaV2.2 channels by regulating PIP2 coupling to the nonspecific phospholipid-binding site in the I–II loop.
    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.
    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

    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.

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