STRUCTURAL STUDIES OF THE ANTIGENIC POLYSACCHARIDE OF EUBACTERIUM SABURREUM, STRAIN T27

Article abstract of DOI:10.1016/0008-6215(83)88081-1

The antigenic polysaccharide produced by Eubacterium saburreum, strain T27, is a homoglycan composed of D-glycero-D-galacto-heptose (Hep) residues having a nonasaccharide repeating-unit with the structure <*>6)-<α-Hepf-(1<*>4)>-β-Hepp-(1><*>₃6)-<α-Hepf-(1<*>2), α-Hepf-(1<*>4)>-β-Hepp-(1<*>.The polysaccharide contains acetyl groups linked to O-2 (except to the 2,4,6-linked heptopyranosyl residue), O-3 and O-7 of part of both heptopyranosyl and heptofuranosyl residues.The assignment of an acetyl group at O-3 of part of the terminal heptofuranosyl and 4,6-linked heptopyranosyl groups is tentative.