Structural analysis of the O-polysaccharide of the lipopolysaccharide from Azospirillum brasilense Jm6B2 containing 3-O-methyl-D-rhamnose (D-acofriose)

被引:13
作者
Boyko, Alevtina S. [1 ]
Dmitrenok, Andrey S. [2 ]
Fedonenko, Yuliya P. [1 ]
Zdorovenko, Evelina L. [2 ]
Konnova, Svetlana A. [1 ,3 ]
Knirel, Yuriy A. [2 ]
Ignatov, Vladimir V. [1 ]
机构
[1] Russian Acad Sci, Inst Biochem & Physiol Plants & Microorganisms, Saratov 410049, Russia
[2] Russian Acad Sci, ND Zelinsky Inst Organ Chem, Moscow 119991, Russia
[3] Chernyshevsky Saratov State Univ, Saratov 410012, Russia
基金
俄罗斯基础研究基金会;
关键词
Lipopolysaccharide; O-Antigen; Bacterial polysaccharide structure; D-Acofriose; Azospirillum brasilense; PLANT-GROWTH; MONOSACCHARIDES;
D O I
10.1016/j.carres.2012.04.006
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
Two types of neutral O-polysaccharides were obtained by mild acid degradation of the lipopolysaccharide isolated by phenol-water extraction from the asymbiotic diazotrophic rhizobacterium Azospirillum brasilense Jm6B2. The following structure of the major O-polysaccharide was established by composition and methylation (ethylation) analyses, Smith degradation, and 1D and 2D H-1 and C-13 NMR spectroscopy: [GRAPHICS] where a non-stoichiometric (similar to 60%) 3-O-methylation of D-rhamnose is indicated by italics. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:92 / 95
页数:4
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