CHEBI:78719 - S. flexneri serotype 6 O-polysaccharide (O factor 9-positive)

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ChEBI Name S. flexneri serotype 6 O-polysaccharide (O factor 9-positive)
ChEBI ID CHEBI:78719
ChEBI ASCII Name S. flexneri serotype 6 O-polysaccharide (O factor 9-positive)
Definition A polysaccharide derivative comprised of a [2)-α-L-RhapIII-(1→2)-α-L-RhapII-(1→3)-β-D-GalpA-(1→3)-β-D-GalpNAc-(1→] tetrasaccharide repeat modified by the addition of an acetyl group to either O-3 or O-4 of many of the RhaIII residues (60% to O-3; 30% to O-4). The structure provided is representative of that in Shigella flexneri serotype 6 and shows the most common repeating unit.
Stars This entity has been manually annotated by the ChEBI Team.
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Formula (C30H45NO21)nH2O
Net Charge 0
Roles Classification
Biological Role(s): antigen
Any substance that stimulates an immune response in the body, such as through antibody production or by presentation to a T-cell receptor after binding to a major histocompability complex (MHC).
View more via ChEBI Ontology
ChEBI Ontology
Outgoing S. flexneri serotype 6 O-polysaccharide (O factor 9-positive) (CHEBI:78719) has role antigen (CHEBI:59132)
S. flexneri serotype 6 O-polysaccharide (O factor 9-positive) (CHEBI:78719) is a polysaccharide derivative (CHEBI:65212)
Synonyms Sources
[2)-α-L-RhaIII3/4Ac-(1→2)-α-L-RhaII-(1→4)-β-D-GalA-(1→3)-β-D-GalNAc-(1→]n ChEBI
[2)-α-L-RhaIIIp3/4Ac-(1→2)-α-L-RhaIIp-(1→4)-β-D-GalpA-(1→3)-β-D-GalpNAc-(1→]n ChEBI
Citations Waiting for Citations Types Sources
22724405 PubMed citation Europe PMC
24671799 PubMed citation Europe PMC
381001 PubMed citation Europe PMC
Last Modified
06 June 2014
General Comment
2014-06-06 The antigenic determinant provisionally named group O factor 9 is described in PMID:24671799.