Structural characterization of the core region from the lipopolysaccharide of the haloalkaliphilic bacterium Halomonas alkaliantarctica strain CRSS (Articolo in rivista)

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Label
  • Structural characterization of the core region from the lipopolysaccharide of the haloalkaliphilic bacterium Halomonas alkaliantarctica strain CRSS (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c0ob00516a (literal)
Alternative label
  • Pieretti G.; Carillo S.; Nicolaus B.; Poli A.; Lanzetta R.; Parrilli M.; Corsaro M.M. (2010)
    Structural characterization of the core region from the lipopolysaccharide of the haloalkaliphilic bacterium Halomonas alkaliantarctica strain CRSS
    in Organic & biomolecular chemistry
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pieretti G.; Carillo S.; Nicolaus B.; Poli A.; Lanzetta R.; Parrilli M.; Corsaro M.M. (literal)
Pagina inizio
  • 5404 (literal)
Pagina fine
  • 5410 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 8 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 23 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Chimica Organica e Biochimica, Università degli Studi di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cinthia 4, 80126 Napoli, Italy. Istituto di Chimica Biomolecolare ICB-CNR, Via Campi Flegrei 34, 80078 Pozzuoli, Italy (literal)
Titolo
  • Structural characterization of the core region from the lipopolysaccharide of the haloalkaliphilic bacterium Halomonas alkaliantarctica strain CRSS (literal)
Abstract
  • Halophilic and halotolerant Gram-negative bacteria are microorganisms which thrive in high salt environments. LPS are the major components of their outer leaflet, nevertheless very little is known about the role of this molecules in the adaptation mechanisms of extremophiles. Recently we determined the O-chain repeating unit structure of the LPS from Halomonas alkaliantarctica strain CRSS, an haloalkaliphilic Gram-negative bacterium isolated from salt sediments of a saline lake in Cape Russell in Antarctic continent. The polysaccharide is constituted of the trisaccharidic repeating unit:->3)-beta-L-Rhap-(1->4)-alpha-L-Rhap-(1->3)-alpha-L-Rhap-(1->. In this paper we report the complete core LPS structure from this bacterium. The LPS was hydrolyzed both under mild acid and strong alkaline conditions. The MALDI spectra showed the presence of two glycoforms. The most abundant was recovered after HPAEC purification of the alkaline hydrolyzed product and was characterized by means of 2D-NMR spectroscopy. A comparison of the MALDI-PSD spectra ofthe two glycoforms suggested that the branched heptose was not stoichiometrically substituted. (literal)
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