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 composed of repeating disaccharide units, consisting of (1->3)-linked residues of 2,4-diacetamido-2,4-dideoxy-beta-D-quinovose (2,4-diacetamido-2,4,6-trideoxy-beta-D-glucose, bacillosamine) and 2-acetimidoylamino-2-deoxy-beta-D-glucuronic acid.