Structure of the O-polysaccharide of Aeromonas hydrophila O:34;: a case of random O-acetylation of 6-deoxy-L-talose

被引：49

作者：

Knirel, YA

Shashkov, AS

Senchenkova, SYN

Merino, S

Tomás, JM

机构：

[1] Russian Acad Sci, ND Zelinskii Organ Chem Inst, Moscow 119991, Russia

[2] Univ Barcelona, Fac Biol, Dept Microbiol, ES-08071 Barcelona, Spain

来源：

CARBOHYDRATE RESEARCH | 2002年 / 337卷 / 15期

关键词：

lipopolysaccharide; O-polysaccharide; bacterial polysaccharide structure; O-acetylation; 6-deoxy-L-talose; Aeromonas hydrophila;

D O I：

10.1016/S0008-6215(02)00136-2

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The O-polysaccharide of Acromonas hydrophila 0:34 was obtained by mild-acid degradation of the lipopolysaccharide and studied by chemical methods and NMR spectroscopy before and after O-deacetylation. The polysaccharide was found to contain D-Man, D-GalNAc and 6-deoxy-L-talose (L-6dTal), and the following structure of the tetrasaccharide repeating unit was established: --> 3)-beta-D-GalpNAc-(1-->4)-alpha-D-Manp-(1-->3)-alpha-L-6dTalpI2Ac-(1 --> [GRAPHICS] alpha-L-6dTalp(II) Ac0-2 where 6dTal(I) is O-acetylated stoichiometrically at position-2 and 6dTal(II) carries no, one or two O-acetyl groups at any positions. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1381 / 1386

页数：6

共 29 条

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