The structure of the O-polysaccharide from the lipopolysaccharide of Providencia alcalifaciens O30.
The O-polysaccharide was obtained by mild acid degradation of the lipopolysaccharide of Providencia alcalifaciens O30. Studies by sugar and methylation analyses along with (1)H and (13)C NMR spectroscopy, including two-dimensional (1)H,(1)H COSY, TOCSY, ROESY, and H-detected (1)H,(13)C HSQC, HMBC, and HMQC-TOCSY experiments, showed that the polysaccharide has a linear pentasaccharide repeating unit of the following structure:
N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation.
Nina A
NA
Kocharova
Olga G
OG
Ovchinnikova
Agnieszka
A
Torzewska
Alexander S
AS
Shashkov
Yuriy A
YA
Knirel
Antoni
A
Rozalski
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D008969:Molecular Sequence Data; D019906:Nuclear Magnetic Resonance, Biomolecular; D019081:O Antigens / Q000737:chemistry* / Q000302:isolation & purification*; D011532:Providencia / Q000737:chemistry*
D019081:O Antigens