N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia.
Carbohydr Res. 2010 Aug 16;345(12):1812-5. doi: 10.1016/j.carres.2010.05.018. Epub 2010 Jun 9.
The O-polysaccharide of Pragia fontium 97U116 was obtained by mild acid degradation of the lipopolysaccharide and studied by sugar analysis along with 1D and 2D (1)H and (13)C NMR spectroscopy. The following structure of the pentasaccharide-repeating unit was established: -->2)-alpha-d-Galf-(1-->3)-alpha-l-Rhap2Ac(I)-(1-->4)-alpha-d-GlcpNAc(I)-(1-->2)-alpha-l-Rhap(II)-(1-->3)-beta-d-GlcpNAc(II)-(1-->
经温和酸降解脂多糖获得普拉吉亚泉 97U116 的 O-多糖，并通过糖分析以及 1D 和 2D（1）H 和（13）C NMR 光谱进行了研究。确定了五糖重复单元的如下结构：-->2）-α-d-半乳糖基-（1-->3）-α-l-鼠李糖 2-乙酸酯（I）-（1-->4）-α-d-葡萄糖胺基-（1-->2）-α-l-鼠李糖（II）-（1-->3）-β-d-葡萄糖胺基-（1-->
