Search Results - "Bigay, Joëlle"
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Nanoscale architecture of a VAP-A-OSBP tethering complex at membrane contact sites
Published in Nature communications (08-06-2021)“…Membrane contact sites (MCS) are subcellular regions where two organelles appose their membranes to exchange small molecules, including lipids. Structural…”
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Structure-Based Design of a Lead Compound Derived from Natural Schweinfurthins with Antitumor Properties That Target Oxysterol-Binding Protein
Published in Journal of medicinal chemistry (26-10-2023)“…Schweinfurthins (SWs) are naturally occurring prenylated stilbenes with promising anticancer properties. They act through a novel mechanism of action similar…”
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3
Itraconazole Inhibits Enterovirus Replication by Targeting the Oxysterol-Binding Protein
Published in Cell reports (Cambridge) (03-02-2015)“…Itraconazole (ITZ) is a well-known antifungal agent that also has anticancer activity. In this study, we identify ITZ as a broad-spectrum inhibitor of…”
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4
Molecular and cellular dissection of the oxysterol-binding protein cycle through a fluorescent inhibitor
Published in The Journal of biological chemistry (27-03-2020)“…ORPphilins are bioactive natural products that strongly and selectively inhibit the growth of some cancer cell lines and are proposed to target intracellular…”
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Curvature, Lipid Packing, and Electrostatics of Membrane Organelles: Defining Cellular Territories in Determining Specificity
Published in Developmental cell (13-11-2012)“…Whereas some rare lipids contribute to the identity of cell organelles, we focus on the abundant lipids that form the matrix of organelle membranes…”
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Two Lipid-Packing Sensor Motifs Contribute to the Sensitivity of ArfGAP1 to Membrane Curvature
Published in Biochemistry (Easton) (20-02-2007)“…ArfGAP1 (Arf GTPase activating protein 1) controls the cycling of the COPI coat on Golgi membranes by catalyzing GTP hydrolysis in the small G protein Arf1…”
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7
The Oxysterol-Binding Protein Cycle: Burning Off PI(4)P to Transport Cholesterol
Published in Annual review of biochemistry (20-06-2018)“…To maintain an asymmetric distribution of ions across membranes, protein pumps displace ions against their concentration gradient by using chemical energy…”
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Sterol transfer, PI4P consumption, and control of membrane lipid order by endogenous OSBP
Published in The EMBO journal (02-11-2017)“…The network of proteins that orchestrate the distribution of cholesterol among cellular organelles is not fully characterized. We previously proposed that…”
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A Four-Step Cycle Driven by PI(4)P Hydrolysis Directs Sterol/PI(4)P Exchange by the ER-Golgi Tether OSBP
Published in Cell (07-11-2013)“…Several proteins at endoplasmic reticulum (ER)-Golgi membrane contact sites contain a PH domain that interacts with the Golgi phosphoinositide PI(4)P, a FFAT…”
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10
An Intrinsically Disordered Region in OSBP Acts as an Entropic Barrier to Control Protein Dynamics and Orientation at Membrane Contact Sites
Published in Developmental cell (22-04-2019)“…Lipid transfer proteins (LTPs) acting at membrane contact sites (MCS) between the ER and other organelles contain domains involved in heterotypic (e.g., ER to…”
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Poliovirus Evolution toward Independence from the Phosphatidylinositol‑4 Kinase III β/Oxysterol-Binding Protein Family I Pathway
Published in ACS infectious diseases (14-06-2019)“…Phosphatidylinositol-4 kinase III β (PI4KB) and oxysterol-binding protein (OSBP) family I provide a conserved host pathway required for enterovirus…”
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Molecular mechanisms of perilipin protein function in lipid droplet metabolism
Published in FEBS letters (01-05-2024)“…Perilipins are abundant lipid droplet (LD) proteins present in all metazoans and also in Amoebozoa and fungi. Humans express five perilipins, which share a…”
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Role of Protein-Phospholipid Interactions in the Activation of ARF1 by the Guanine Nucleotide Exchange Factor Arno
Published in The Journal of biological chemistry (29-08-1997)“…Arno is a 47-kDa human protein recently identified as a guanine nucleotide exchange factor for ADP ribosylation factor 1 (ARF1) with a central Sec7 domain…”
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α-Synuclein and ALPS motifs are membrane curvature sensors whose contrasting chemistry mediates selective vesicle binding
Published in The Journal of cell biology (11-07-2011)“…Membrane curvature sensors have diverse structures and chemistries, suggesting that they might have the intrinsic capacity to discriminate between different…”
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Surface tension-driven sorting of human perilipins on lipid droplets
Published in The Journal of cell biology (02-12-2024)“…Perilipins (PLINs), the most abundant proteins on lipid droplets (LDs), display similar domain organization including amphipathic helices (AH). However, the…”
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VAP-A intrinsically disordered regions enable versatile tethering at membrane contact sites
Published in Developmental cell (23-01-2023)“…Membrane contact sites (MCSs) are heterogeneous in shape, composition, and dynamics. Despite this diversity, VAP proteins act as receptors for multiple FFAT…”
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Lipid packing sensed by ArfGAP1 couples COPI coat disassembly to membrane bilayer curvature
Published in Nature (04-12-2003)“…Protein coats deform flat lipid membranes into buds and capture membrane proteins to form transport vesicles. The assembly/disassembly cycle of the COPI coat…”
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A lipid exchange market : vectorial cholesterol transport by the protein OSBP
Published in M.S. Médecine sciences (01-02-2020)“…Cholesterol is synthesized in the endoplasmic reticulum (RE) and then transported to cellular compartments whose functions require high cholesterol levels…”
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Building lipid 'PIPelines' throughout the cell by ORP/Osh proteins
Published in Biochemical Society transactions (01-10-2014)“…In eukaryotic cells, a sterol gradient exists between the early and late regions of the secretory pathway. This gradient seems to rely on non-vesicular…”
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Roles of Lipid Modifications of Transducin Subunits in Their GDP-Dependent Association and Membrane Binding
Published in Biochemistry (Easton) (01-11-1994)“…Transducin is an unusually soluble and dissociable heterotrimeric G-protein, although its T alpha and T beta gamma subunits are N-acylated and farnesylated,…”
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