Structure and gene cluster of the O-antigen of Escherichia coli O41

被引：4

作者：

Zhu, Hongfei ^{[2
]}

Perepelov, Andrei V. ^{[1
]}

Senchenkova, Sof'ya N. ^{[1
]}

Shashkov, Alexander S. ^{[1
]}

Wang, Lei ^{[2
]}

Knirel, Yuriy A. ^{[1
]}

机构：

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

[2] Nankai Univ, TEDA, TEDA Sch Biol Sci & Biotechnol, Tianjin 300071, Peoples R China

来源：

CARBOHYDRATE RESEARCH | 2012年 / 349卷

基金：

俄罗斯基础研究基金会; 美国国家科学基金会;

关键词：

Escherichia coli; Bacterial polysaccharide structure; O-antigen; Lipopolysaccharide; O-antigen gene cluster; BIOSYNTHESIS; POLYSACCHARIDES; IDENTIFICATION; ORGANIZATION;

D O I：

10.1016/j.carres.2011.12.009

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 acidic O-polysaccharide (O-antigen) of Escherichia coli O41 was studied by sugar analysis along with 1D and 2D H-1 and C-13 NMR spectroscopy, and the following structure of the branched hexasaccharide repeating unit was established: beta-D-GlcpA 1 down arrow 4 -> 3)-alpha-D-Galp-(1 -> 3)-alpha-L-Fucp-(1 -> 4)-beta-D-GlcpNAc-(1 -> 3)-alpha-L-Fucp-(1 -> 3)->beta-D-GlcpNAc-(1 -> This structure is unique among the known structures of bacterial polysaccharides. The O-antigen gene cluster of E. coli O41 was sequenced. The gene functions were tentatively assigned by a comparison with sequences in the available databases and found to be in full agreement with the E. coli O41 O-polysaccharide structure. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：86 / 89

页数：4

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