STRUCTURAL STUDIES OF THE O-SPECIFIC SIDE-CHAINS OF THE SHIGELLA-SONNEI PHASE-I LIPOPOLYSACCHARIDE
STRUCTURAL STUDIES OF THE O-SPECIFIC SIDE-CHAINS OF THE SHIGELLA-SONNEI PHASE-I LIPOPOLYSACCHARIDE
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DOI：
10.1016/s0008-6215(00)83665-4
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发表时间：
1980-01-01
影响因子：
3.1
通讯作者：
ROMANOWSKA, E
中科院分区：
文献类型：
--
作者：
KENNE, L;LINDBERG, B;ROMANOWSKA, E
研究了宋内氏链球菌I相脂多糖O-专一性侧链的结构。侧链由二糖重复单元组成，含有两个不常见的糖组分，其中一个为2-氨基-2-脱氧-L-尿酸。另一名被鉴定为2-acetamido-4-amino-2，4，6-trideoxy-D-galactose.作为N-乙酰化的α-吡喃糖基残基的糖醛酸通过O-4连接，作为β-吡喃糖基残基的二氨基糖通过O-3连接。吡喃糖醛酸残基在聚合物中呈4c1构象，羧基在轴向位置。
The structure of the O-specific side-chains of the S. sonnei phase I lipopolysaccharide was investigated. The side chains are composed of disaccharide repeating-units containing 2 uncommon sugar components, one of which, 2-amino-2-deoxy-L-altruronic acid, was identified previously. The other was identified as 2-acetamido-4-amino-2,4,6-trideoxy-D-galactose. The uronic acid, as N-acetylated .alpha.-pyranosyl residues, is linked through O-4, and the diamino sugar, as .beta.-pyranosyl residues, is linked through O-3. The pyranosyluronic acid residue assumes the 4C1 conformation in the polymer, with the carboxyl group in the axial position.