Thierry Couesnon

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The solution structures of d(GAAAACGTTTTC)2 and of its methylated derivative d(GAAAAMe5CGTTTTC)2 have been determined by NMR and molecular modelling in order to examine the impact of cytosine methylation on the central CpG conformation. Detailed 1H NMR and 31P NMR investigation of the two oligomers includes quantitative NOESY, 2D homonuclear Hartmann-Hahn(More)
Comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) based on three-dimensional quantitative structure-activity relationship (3D-QSAR) studies were conducted on a series (39 molecules) of peptidyl vinyl sulfone derivatives as potential Plasmodium Falciparum cysteine proteases inhibitors. Two different(More)
Successive investigations over the last decade have revealed and confirmed a stable loop closure in a family of d-[GTAC-5Pur6N7N-GTAC] hairpins, where 5Pur6N7N is a AAA, GAG and AXC loop (X being any nucleotide). The trinucleotide loop is characterized by a well defined 5Pur-7N mispairing mode, and by upfield chemical shifts for three sugar protons of the(More)
HIV-1 gp41 facilitates the viral fusion through a conformational switch involving the association of three C-terminal helices along the conserved hydrophobic grooves of three N-terminal helices coiled-coil. The control of these structural rearrangements is thought to be central to HIV-1 entry and, therefore, different strategies of intervention are being(More)
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