Taxonomic group: bacteria / Proteobacteria
(Phylum: Proteobacteria)
Associated disease: infection due to Escherichia coli [ICD11:
XN6P4 
]
The structure was elucidated in this paperPublication DOI: 10.1039/C39820001017Journal NLM ID: 7505595Publisher: London: Royal Society of Chemistry
Institutions: Central Research Institute for Chemistry of the Hungarian Academy of Sciences, H-7 025 Budapest, Hungary, Max- Planck-lnstitut für lmmunbiologie, 0-7800 Freiburgl Breisgau, F. R. G., Sandoz Forschungsinstitut Wien, A- 7235 Wien 23, Austria
The 13C n.m.r. heteronuclear coupling constant,3J(C-1, H-3a)ca, 5 Hz, affords for the first time in a natural product, proof of the β-anomric clonfiguration of the (3-deoxy-D-manno-2-octulopyranosyl)ono (KDO) residues in the capsular polysaccharide from Escherchia coli O6 : K13 : H1, while empirical correlations and spin-lattice relaxation times (T1-values) support the constitutional assignments made previously on this and the related, branched polysaccharide from Escherichia coli LP 1092.
Structure type: polymer chemical repeating unit
Location inside paper: p.1018, fig.1a
Trivial name: K23 antigen
Compound class: CPS, K-antigen
Contained glycoepitopes: IEDB_149136
Methods: 13C NMR, 1H NMR
Comments, role: de-acetylated K13 polysaccharide
Related record ID(s): 101059, 130166, 138447
NCBI Taxonomy refs (TaxIDs): 562Reference(s) to other database(s): GTC:G18559LJ, GlycomeDB:
674
Show glycosyltransferases
NMR conditions: in D2O at 363(C) K
[as TSV]
13C NMR data:
Linkage Residue C1 C2 C3 C4 C5 C6 C7 C8
7 bDRibf 105.7 74.9 74.9 82.4 61.1
bXKdop 174.2 102.8 35.6 68.4 66.4 73.5 76.1 63.6
1H NMR data:
missing...
13C NMR data:
| Linkage | Residue | C1 | C2 | C3 | C4 | C5 | C6 | C7 | C8 |
|---|
| 7 | bDRibf | 105.7 | 74.9 | 74.9 | 82.4 | 61.1 | |
| | bXKdop | 174.2 | 102.8 | 35.6 | 68.4 | 66.4 | 73.5 | 76.1 | 63.6 |
|
There is only one chemically distinct structure:
Found 
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