The core oligosaccharide component from Mannheimia (Pasteurella) haemolytica serotype Al lipopolysaccharide contains L-glycero-D-manno- and D-glycero-D-manno-heptoses: Analysis of the structure and conformation by high-resolution NMR spectroscopy
The core oligosaccharide component from Mannheimia (Pasteurella) haemolytica serotype Al lipopolysaccharide contains L-glycero-D-manno- and D-glycero-D-manno-heptoses: Analysis of the structure and conformation by high-resolution NMR spectroscopy
prepared ferroushydroxide at ambient temperature provides the corresponding glycamines that were isolated in 81-94% yields as salts with TFA. Under such modified reaction conditions, the retro-Henry reaction of the starting compounds is significantly suppressed due to the amphoteric character of the reducing agent in water. Lower, 58-75% yields were obtained by the classical process with ferrous sulfate
Conserved Inner Core Lipopolysaccharide Epitopes as Multi-Species Vaccine Candidates
申请人:Cox D. Andrew
公开号:US20080008723A1
公开(公告)日:2008-01-10
A conserved inner-core oligosaccharide epitope expressed on the lipopolysaccharide (LPS) of a range of disease causing pathogenic bacterial isolates, including
Actinobacillus pleuropneumoniae
(Ap),
Mannheimia haemolytica
(Mh) and
Pasteurella multocida
(Pm), is disclosed. Construction of a mutant bacterial strain exclusively expressing the conserved inner core OS epitope as a terminally exposed structure has allowed the identification, production and isolation of an inner core LPS which is common to all three organisms. Further provided are associated vaccines, antibodies raised against the conserved LPS inner core and glycoconjugates comprising the LPS inner core linked to an immunogenic carrier.