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.
An amino decasaccharide that is alpha-D-Manp-(1->2)-alpha-D-Manp-(1->2)-alpha-D-Manp-(1->3)-[alpha-D-Manp-(1->3)-[alpha-D-Manp-(1->6)]-alpha-D-Manp-(1->6)]-beta-D-Manp-(1->4)-beta-D-GlcpNAc-(1->4)-beta-D-GlcpNAc which contains an additional D-mannospyranose unit attached by an (alpha-1->2) glycosidic bond. In the structure shown, one of the five R atoms represents the alpha-1->2 attached mannosyl group; the remaining four R atoms are hydrogens.