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- Team D. Lévy. Functional and structural analysis of membrane proteins
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- concentration wave of E. coli bacteria in a microchannel
- Amphiphilic Poly(ethylene oxide)-block-poly(butadiene-graft-liquid crystal) Copolymers: Synthesis and Self-Assembly in Water
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- Fig 4. Model of biomolecular networks under duplication-divergence evolution
- Fig 4. Model of biomolecular networks under duplication-divergence evolution
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- Fig. 1 Oscillations de moteurs moléculaires
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- Functional and structural analysis of BmrC/BmrD abacterial heterodimeric MDR transporter
- Functional and structural analysis of BmrC/BmrD bacterial heterodimeric MDR transporter
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- 2D crystals of BmrC/BmrD
- 2D crystals of BmrC/BmrD, a bacterial heterodimeric ABC transporter
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- Single particle analysis of 300kDa LH1-RC-PufX core complex of Rbs. veldkampii
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- Atomic Model of LH1-RC-PufX from Rba. sphaeroides
- Single particle analysis by cryoElectron Microscopy of a small non symemetrical membrane protein
- 2D crystals of Light Harversting Complex, LH2, from Rba. sphaeroides
- 3D reconstruction of LH1-RC-PufX, 280 Kda, at 12 A resolution
- 3D reconstruction of LH1-RC-PufX, 280 kDa, at 12 A resolution
- 2D crystals of Light Harversting Complex, LH2, from Rba. sphaeroides
- schematic model of the coupling between the non equivalent catalytic sites of ABC transporters
- schematic model of the coupling between the non equivalent catalytic sites of ABC transporters
- schematic model of the coupling between the equivalent catalytic sites of ABC transporters
- Tubular to planar membranes upon conformational changes of BmrA, a ABC transporter
- Orientation of the Shiga toxin B subunit toward the membrane
- Pores in lipid membrane
- Functionalyzed tubes made of cerebroside lipids
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- Actin filled liposomes form a cortex if polymerization is activated at the membrane
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fig 3
Multidrugs Resistance Proteins hydrolyse ATP for the efflux of various xenobiotics. Three human MDR transporters have been found in tumor cells and transport several drugs used in chemiotherapy along with a mechanism of selectivity and inhibition poorly understood. Our team is working on bacterial homolog and on human MDRs. In absence of nucleotide, the conformation of the NBD's is open, leading to a conical shaped protein that upon reconstitution into lipid bilayer forms tubes (A). In presence of nucleotide, planar membrane and 2D crystals are formed (B). Projection map of ATP bound conformation or “NBD closed”. Centre, catalytic cycle of BmrA involving a large conformational change associated to the translocation of drugs. (Coll. S. Marco, INSERM U759, Institut Curie, A. Di Pietro, IBCP, Lyon, J.M.Jault, IBS, Grenoble).