期刊
CHEMBIOCHEM
卷 9, 期 11, 页码 1830-1835出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cbic.200800191
关键词
Dha; Lewis B; lipooligosaccharide; Rhizobium rubi
The structure of the core oligosaccharide from the phytopathogenic bacterium Rhizobium rubi was deduced by combining information from complementary chemical approaches (alkaline and acid hydrolysis), similar to the overlap peptide strategy. This structure is new and it contains two main oligosaccharide backbones that differ in the substitution degree of the external Kdo unit. The relevant feature shared by both oligosaccharides is the presence of a tetrasaccharide motif that is similar to the blood group Lewis B antigen (Le). This epitope differs from Le(B) in the glycosidic configuration of the glucosamine unit (alpha and not beta) and in the occurrence of acetyls substituents at O3 and/or O4 of the galactose moiety. Other notable structural features are the location of the Dha residue, the presence of a alpha-glucose unit that is linked to the inner Kdo unit, the high number of acid sugars and the highly branched core structure.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据