Found 1 structure.
Displayed structure 1
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1. Compound ID: 7005
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a-L-Fucp-(1-2)-+
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-3)-b-D-Galp-(1-3)-a-D-GalpNAc-(1-2)-a-D-Galp-(1-3)-a-D-GalpNAc-(1- |
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Structure type: polymer biological repeating unit
Compound class: O-polysaccharide, O-antigen
Contained glycoepitopes: IEDB_130648,IEDB_134627,IEDB_136044,IEDB_136045,IEDB_136906,IEDB_137472,IEDB_137473,IEDB_1391961,IEDB_1391963,IEDB_140124,IEDB_141584,IEDB_141794,IEDB_141814,IEDB_142489,IEDB_143260,IEDB_144562,IEDB_144990,IEDB_149570,IEDB_150766,IEDB_150948,IEDB_151528,IEDB_152213,IEDB_152214,IEDB_152215,IEDB_152218,IEDB_153205,IEDB_153222,IEDB_153553,IEDB_153554,IEDB_174039,IEDB_174333,IEDB_190606,IEDB_241096,IEDB_461710,IEDB_461714,IEDB_461719,IEDB_885822,SB_149,SB_154,SB_165,SB_166,SB_187,SB_195,SB_23,SB_24,SB_7,SB_8,SB_86,SB_88
The structure is contained in the following publication(s):
- Article ID: 3199
Yi W, Bystricky P, Yao Q, Guo H, Zhu L, Li H, Shen J, Li M, Ganguly S, Bush CA, Wang PG "Two different O-polysaccharides from Escherichia coli O86 are produced by different polymerization of the same O-repeating unit." -
Carbohydrate Research 341 (2006) 100-108
The structure of a new O-polysaccharide from Escherichia coli O86:K62:B7 was determined using NMR and methylation analysis. The structure is as follows: [carbohydrate: see text]. Comparison with the previously published structure from E. coli O86:K2:H2 revealed that the O-polysaccharides from these two E. coli O86 serotypes share the same branched pentasaccharide repeating unit. However, they differ in the anomeric configuration of the linkage, the linkage position, and the identity of the residue through which polymerization occurs. The immunochemical activity of these two forms of LPS toward anti-B antibody was studied and compared. The results showed that LPS from E. coli O86:K2:H2 strain possesses higher blood group B reactivity. The immunoreactivity difference was explained by modeling of the O-repeating unit tetrasaccharide fragments. This finding provides a good system for the further study of O-polysaccharide biosynthesis especially the repeating unit polymerization mechanism.
Lipopolysaccharide, O-polysaccharide, molecular modeling, blood group antigens, polymerization, O-Repeating unit, Blood group antigens; Lipopolysaccharide; Molecular modeling; O-Polysaccharide; O-Repeating unit; Polymerization
NCBI PubMed ID: 16313893Publication DOI: 10.1016/j.carres.2005.11.001Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: Peng G. Wang
Institutions: Department of Biochemistry, The Ohio State University, Columbus, OH 43210, USA, Department of Chemistry, University of Maryland, Baltimore County, MD 21250, USA
Methods: methylation, GC-MS, NMR, ELISA, composition analysis
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