Adeyeye A, Jansson P E, Lindberg B, Abaas S, Svenson S B
Department of Organic Chemistry, Arrhenius Laboratory, University of Stockholm, Sweden.
Carbohydr Res. 1988 May 15;176(2):231-6. doi: 10.1016/0008-6215(88)80134-4.
The structure of the O-antigen polysaccharide from Escherichia coli O-149 has been investigated; methylation analysis, partial hydrolysis with acid, and n.m.r. spectroscopy were the principal methods used. It is concluded that the polysaccharide is composed of trisaccharide repeating-units having the following structure. (Formula: see text). The absolute configuration at the acetalic carbon atom of the pyruvic acid residue is S.
对大肠杆菌O-149的O-抗原多糖结构进行了研究；甲基化分析、酸部分水解和核磁共振光谱是主要使用的方法。得出的结论是，该多糖由具有以下结构的三糖重复单元组成。（分子式：见正文）。丙酮酸残基缩醛碳原子上的绝对构型为S型。
