[2)-beta-D-Manp-(1->4)-alpha-L-Rhap-(1->3)-alpha-D-Galp-(1->]n
[2)-beta-d-manp-(1->4)-alpha-l-rhap-(1->3)-alpha-d-galp-(1->]n
A polysaccharide composed of a backbone of linear trisaccharide repeating units that are joined to each other via α-(1→2)-linkages; corresponds to the O repeating unit of <em>Salmonella</em> serogroup E.