来自溶纤维丁酸弧菌CF3菌株的细胞外多糖的结构研究。

Structural studies of the extracellular polysaccharide from Butyrivibrio fibrisolvens strain CF3.

作者信息

Ferreira F, Kenne L, Cotta M A, Stack R J

机构信息

Cátedra de Farmacognosia y Productos Naturales, Facultad de Química, Montevideo, Uruguay.

出版信息

Carbohydr Res. 1997 Jun 20;301(3-4):193-203. doi: 10.1016/s0008-6215(97)00097-9.

DOI:10.1016/s0008-6215(97)00097-9

PMID:9232840

Abstract

The structure of the Butyrivibrio fibrisolvens strain CF3 capsular polysaccharide has been investigated mainly by sugar and methylation analyses, Smith degradation, NMR spectroscopy, and mass spectrometry. The results indicate that the polysaccharide is composed of pentasaccharide repeating units having the following structure: -->4)-beta-L-Altp-(1-->4)-beta-D-Glcp-(1-->3)-4-O-[(R)-1-carboxyet hyl]-beta- D-Glcp-(1-->4)-6-O-[(R)-1-carboxyethyl]-alpha-D-Galp-(1--> 2 increases 1 beta-D-Glcp.

摘要

主要通过糖和甲基化分析、史密斯降解、核磁共振光谱和质谱法对溶纤维丁酸弧菌CF3菌株荚膜多糖的结构进行了研究。结果表明，该多糖由具有以下结构的五糖重复单元组成：→4)-β-L-阿卓糖-(1→4)-β-D-葡萄糖-(1→3)-4-O-[(R)-1-羧乙基]-β-D-葡萄糖-(1→4)-6-O-[(R)-1-羧乙基]-α-D-半乳糖-(1→2增加1β-D-葡萄糖。