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 consisting of a repeating unit of beta-D-glucuronosyl, beta-D-galacturonosyl and N-acetyl-beta-D-glucosaminyl residues linked sequentially (1->3) and (1->3), to the glucuronosyl and N-acetylglucosaminyl residues of which are linked respectively (1->2) and (1->6) an N-acetyl-beta-D-glucosaminyl residue and an alpha-D-glucosyl residue, while the galacturonosyl residue forms an amide with L-threonine, the complete pentasaccharide repeating units all being linked (1->4). The O-polysaccharide of Proteus mirabilis O11.