%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES %A Silipo, A. %A Di Lorenzo, F. %A De Felice, A. %A Vanacore, A. %A De Castro, C. %A Gully, Djamel %A Lanzetta, R. %A Parrilli, M. %A Giraud, Eric %A Molinaro, A. %T Structural and conformational study of the O-polysaccharide produced by the metabolically versatile photosynthetic bacterium Rhodopseudomonas palustris strain BisA53 %D 2014 %L fdi:010062636 %G ENG %J Carbohydrate Polymers %@ 0144-8617 %K Rhodopseudomonas palustris ; Lipopolysaccharide ; C-branched sugar ; NMR ; spectroscopy ; Molecular modeling %M ISI:000343613800049 %P 384-391 %R 10.1016/j.carbpol.2014.08.037 %U https://www.documentation.ird.fr/hor/fdi:010062636 %> https://www.documentation.ird.fr/intranet/publi/2014/11/010062636.pdf %V 114 %W Horizon (IRD) %X Rhodopseudomonas palustris is a purple photosynthetic bacterium characterized by a versatile nature and a remarkable ability to adapt to various environments. In this work, we focused our attention to its membrane characteristics and defined the structural and conformational features of the O-chain polysaccharide of LPS isolated from R. palustris strain BisA53. This strain produces a polymer with a trisaccharide repeating unit characterized by D-rhamnose, 3-deoxy-D-lyxo-2-heptulosaric acid (Dha), and a novel C-branched monosaccharide, a 4-amino-4,6-dideoxy-3-C-methyl-2-O-methyl-alpha-L-glucopyranose whose absolute configuration has been determined by a combination of 2D NMR spectroscopy and molecular mechanic and dynamic simulation. %$ 084 ; 020