clinical isolates of escherichia hermannii which showed serological cross-reaction with polyclonal antisera to the o-polysaccharide portion of the lipopolysaccharide of e. coli o157 strains and with antisera to the o antigens of brucella abortus and b. melitensis were found by chemical and nuclear magnetic resonance analyses to have lipopolysaccharide o chains composed of linear polymers containing 1,2- and 1,3-linked 4-acetamido-4,6-dideoxy-alpha-d-mannopyranosyl ( alpha-d-rhap4nac ) residues .
C0069180
o antigens
C0023810
lipopolysaccharide