The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
A polysaccharide derivative comprising a trisaccharide repeating unit consisting of 4,N-diacetyl-beta-D-mannosaminouronic acid, N-acetyl-alpha-L-fucosamine and N-acetyl-beta-D-fucosamine residues linked sequentially (1->3), with the trisaccharide repeats themselves also being linked (1->3); corresponds to the serotype 8 (CP8) capsular polysaccharide of Staphylococcus aureus.