Taxonomic group: bacteria / Proteobacteria
(Phylum: Proteobacteria)
Associated disease: infection due to Escherichia coli [ICD11:
XN6P4 
]
The structure was elucidated in this paperPublication DOI: 10.1016/0008-6215(88)84120-XJournal NLM ID: 0043535Publisher: Elsevier
Institutions: Max-Planck-Institut für Immunbiologie, D-7800 Freiburg F.R.G., Forschungsinstitut Borstel, D-2061 Borstel F.R.G.
The structure of the capsular K74 antigen of E. coli H702c (O44:K74:H18) was elucidated by determination of the composition, 1H- and 13C-n.m.r. and c.d. spectroscopy, periodate oxidation, and methylation analysis of the polysaccharide and of a trisaccharide obtained by mild acid hydrolysis. The K74 antigen has the repeating unit →3)-β-d-Ribf-(1→2)-β-d-Ribf-(1→6)-β-KDOf-(2→. Of the repeating units, ∼65% are O-acetylated, most probably at C-2 of the 3-linked ribose.
Structure type: polymer chemical repeating unit
Trivial name: K74 antigen
Compound class: K-antigen
Contained glycoepitopes: IEDB_149136
Methods: 13C NMR, 1H NMR, GLC-MS, GLC, CD
Comments, role: E. coli H702c (044:K74:H18)
Related record ID(s): 634
NCBI Taxonomy refs (TaxIDs): 562Reference(s) to other database(s): GTC:G34653TI, GlycomeDB:
5730
Show glycosyltransferases
There is only one chemically distinct structure: