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Journal of Endotoxin Research
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Synthesis and immunochemical characterization of neoglycoproteins containing epitopes of the inner core region of Pseudomonas aeruginosa RNA group I lipopolysaccharide

Andreas Reiter

Institute of Chemistry, University of Agricultural Sciences, Vienna, Austria

Lore Brade

Divisions of Medical and Biochemical Microbiology, Centre for Medicine and Biosciences, Germany

Patricia Sanchez-Carballo

Division of Immunochemistry, Research Centre Borstel, Centre for Medicine and Biosciences, Germany

Helmut Brade

Divisions of Medical and Biochemical Microbiology, Centre for Medicine and Biosciences, Germany

Paul Kosma

Institute of Chemistry, University of Agricultural Sciences, Vienna, Austria, pkosma{at}edv2.boku.ac.at

The disaccharide allyl 2-acetamido-2-deoxy-{alpha}-D-galactopyranosyl-(1->3)-7-O-carbamoyl-L- glycero{alpha}-D-manno-heptopyranoside 5 (GalNAc-cmHep-allyl) was synthesized starting from 1 and 2. Compound 5, cmHep-allyl and the disaccharide cmHep-(1->3)-Hep-allyl were converted into cysteamine-spacered derivatives and conjugated to bovine serum albumin (BSA) to yield the neoglycoconjugates 7—9, respectively. These conjugates were used to immunize mice and to prepare monoclonal antibodies (mAbs) which were characterized in comparison to mAbs obtained after immunization with heat-killed Pseudomonas aeruginosa strain H4. Two antibodies obtained after immunization with the neoglycoconjugates bound strongly to cmHep-BSA and with lower affinity to cmHep-Hep-BSA but did not bind to GalNAc-cmHep-BSA or to H4 LPS. Another antibody obtained after immunization with heat-killed bacteria bound to LPS and GalNAc-cmHep-BSA but not to cmHep-Hep-BSA or cmHep-BSA

Journal of Endotoxin Research, Vol. 7, No. 2, 125-131 (2001)
DOI: 10.1177/09680519010070020701
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