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 mannopentaose comprised of a chain of three alpha-D-mannose residues linked (1->2) and (1->3), with a further two-D-mannose-residue (1->2)-linked unit linked (1->6) to the mannose residue at the reducing end.