[4)-alpha-D-Galp-(1->3)-beta-D-Galf-(1->]n
[4)-alpha-d-galp-(1->3)-beta-d-galf-(1->]n
A polysaccharide composed of a backbone of α-galactopyranosyl-(1→3)-galactofuranosyl repeating units that are joined to each other via β-(1→4)-linkages; corresponds to the repeating unit of the O-polysaccharide from <em>Pasteurella haemolytica</em> serotypes 4 and 10.