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Structure and genetics of a glycerol 2-phosphate-containing O-specific polysaccharide of Escherichia coli O33
被引:5
|作者:
Senchenkova, Sof'ya N.
[1
]
Hou, Wenqi
[2
]
Naumenko, Olesya I.
[1
,4
]
Geng, Peng
[3
]
Shashkov, Alexander S.
[1
]
Perepelov, Andrei V.
[1
]
Yang, Bin
[2
]
Knirel, Yuriy A.
[1
]
机构:
[1] Russian Acad Sci, ND Zelinsky Inst Organ Chem, Moscow 119991, Russia
[2] Nankai Univ, Key Lab Mol Microbiol & Technol, Minist Educ, TEDA Inst Biol Sci & Biotechnol,TEDA, Tianjin, Peoples R China
[3] Tianjin Med Univ, Sch Basic Med Sci, Tianjin 300070, Peoples R China
[4] DI Mendeleev Univ Chem Technol Russia, Russian Acad Sci, Higher Chem Coll, Moscow, Russia
基金:
俄罗斯科学基金会;
关键词:
Escherichia coli;
Lipopolysaccharide;
O-antigen;
O-specific polysaccharide;
Bacterial polysaccharide structure;
O-antigen gene cluster;
Glycerol phosphate;
ANTIGEN;
CLUSTER;
BIOSYNTHESIS;
D O I:
10.1016/j.carres.2018.02.008
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:
An O-specific polysaccharide was isolated by mild acid degradation of the lipopolysaccharide of Escherichia coli O33 followed by gel-permeation chromatography on Sephadex G-50. The polysaccharide was found to contain glycerol 2-phosphate (Gro-2-P), and the following structure of its tetrasaccharide repeat was established by sugar analysis, dephosphorylation, and 1D and 2D H-1 and C-13 NMR spectroscopy: [GRAPHICS] The O33-antigen gene cluster was analyzed and found to be essentially consistent with the O-polysaccharide structure. (C) 2018 Elsevier Ltd. All rights reserved.
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页码:47 / 50
页数:4
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