大肠杆菌O9:K57:H32荚膜多糖的结构研究
A structural investigation of the capsular polysaccharide of Escherichia coli O9:K57:H32.
作者信息
Parolis H, Parolis L A, Stanley S M, Dutton G G
机构信息
School of Pharmaceutical Sciences, Rhodes University, Grahamstown, South Africa.
出版信息
Carbohydr Res. 1990 Apr 25;200:449-56. doi: 10.1016/0008-6215(90)84210-l.
PMID:2199039
Abstract
The primary structure of the acidic capsular polysaccharide of Escherichia coli K57 was elucidated by methylation analysis and 1D- and 2D-n.m.r. spectroscopy. The repeating unit was identified as a linear tetrasaccharide having the structure shown. ----2)-beta-D-Ribf-(1----4)-beta-D-Galp-(1----3)-alpha-D-GlcpNAc-( 1----4)-alpha - D-GalpA-(1----.
摘要
通过甲基化分析以及一维和二维核磁共振光谱法阐明了大肠杆菌K57酸性荚膜多糖的一级结构。重复单元被鉴定为具有所示结构的线性四糖。----2)-β-D-核糖-(1----4)-β-D-半乳糖-(1----3)-α-D-N-乙酰葡糖胺-(1----4)-α-D-半乳糖醛酸-(1----。
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