3,073 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Continuous transport of a small fraction of plasma membrane cholesterol to endoplasmic reticulum regulates total cellular cholesterol

    Rodney Elwood Infante, Arun Radhakrishnan
    A post-lysosomal cholesterol transport inhibitor reveals how the endoplasmic reticulum membrane regulates total cellular cholesterol by constantly monitoring a critical pool of cholesterol in the plasma membrane.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Movement of accessible plasma membrane cholesterol by the GRAMD1 lipid transfer protein complex

    Tomoki Naito, Bilge Ercan ... Yasunori Saheki
    GRAMD1 proteins sense a transient expansion of the accessible pool of plasma membrane cholesterol and facilitate its transport to the endoplasmic reticulum at ER-PM contact sites.
    1. Cell Biology

    Apolipoprotein L-1 renal risk variants form active channels at the plasma membrane driving cytotoxicity

    Joseph A Giovinazzo, Russell P Thomson ... Ryan Schreiner
    Cytotoxicity associated with APOL1 renal-risk variants occurs through its plasma-membrane localization, where aberrant channel activity drives a sustained sodium and calcium influx leading to cell swelling and eventually cell death.
    1. Microbiology and Infectious Disease

    A myristoyl switch at the plasma membrane triggers cleavage and oligomerization of Mason-Pfizer monkey virus matrix protein

    Markéta Častorálová, Jakub Sýs ... Tomas Ruml
    Biochemical and instrumental analysis showed that the membrane-induced exposure of myristoyl from the MA protein of Mason-Pfizer monkey virus triggers allosteric conformational changes resulting in MA oligomerization and unfolding of the cleavage site between MA and downstream domains of Gag.
    1. Cell Biology

    Annexin A6 mediates calcium-dependent exosome secretion during plasma membrane repair

    Justin Krish Williams, Jordan Matthew Ngo ... Randy Schekman
    Plasma membrane damage causes the release of exosomes from cultured human cells.
    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. Cell Biology

    Comment on ‘Orthogonal lipid sensors identify transbilayer asymmetry of plasma membrane cholesterol’

    Kevin C Courtney, Karen YY Fung ... Xiaohui Zha
    We challenge a recent report that most of the cholesterol in the plasma membrane of mammalian cells is in the exofacial leaflet.
    1. Cell Biology
    2. Plant Biology

    Plant immune and growth receptors share common signalling components but localise to distinct plasma membrane nanodomains

    Christoph A Bücherl, Iris K Jarsch ... Cyril Zipfel
    Although genetically and biochemically linked, the plant immune and growth receptors FLS2 and BRI1 form dispersed receptor clusters within the plasma membrane that are spatiotemporally separated.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    A cell wall synthase accelerates plasma membrane partitioning in mycobacteria

    Takehiro Kado, Zarina Akbary ... M Sloan Siegrist
    A newly established reversible model of membrane departitioning and repartitioning in bacteria uncovers the role of a cell wall synthase in regulating membrane partitioning.
    1. Cell Biology

    The ART-Rsp5 ubiquitin ligase network comprises a plasma membrane quality control system that protects yeast cells from proteotoxic stress

    Yingying Zhao, Jason A MacGurn ... Scott Emr
    Ubiquitin ligase adaptors target the selective clearance of misfolded plasma membrane proteins.

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