Taxonomic group: bacteria / Proteobacteria
(Phylum: Proteobacteria)
Associated disease: infection due to Escherichia coli [ICD11:
XN6P4 
]
The structure was elucidated in this paperNCBI PubMed ID: 3128402Journal NLM ID: 0043535Publisher: Elsevier
Institutions: Laboratory of Chemical Physics, National Institute of Diabetes, Digestive, and Kidney Diseases, Bethesda, MD, USA
The structures of the Escherichia coli K93 and K53 capsular polysaccharides have been investigated by chemical and spectroscopic methods. The repeating unit of both polymers was found to be →3)-β-D-Galf-(1→4)-β-D-GlcAp-(1→. The O-5 and O-6 atoms of D-galactose are acetylated in the repeating unit of the K93 polymer, but only O-2 is acetylated in the K53 polymer. The K93 polysaccharide is cross-reactive with the Neisseria meningitidis Group A capsular polysaccharide (of known structure). The K53 polysaccharide, although structurally similar to that from K93 organisms, does not cross-react with the Group A polymer.
Structure type: polymer chemical repeating unit
Compound class: K-antigen
Contained glycoepitopes: IEDB_115136,IEDB_136095,IEDB_137472,IEDB_140630,IEDB_190606,IEDB_423153
Methods: 1H NMR
Related record ID(s): 115194
NCBI Taxonomy refs (TaxIDs): 562Reference(s) to other database(s): GTC:G01169PP, GlycomeDB:
5626
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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