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 branched hexasaccharide comprising six D-arabinofuranose units, in an assembly consisting of two arabinose residues linked alpha(1->5) (with alpha-configuration at the reducing end), with alpha-arabinosyl-(1->2)-alpha-arabinosyl disaccharide units linked to the 3- and 5-positions of the residue distal from the reducing-end residue. Branched hexasaccharide from the cell wall of Mycobacterium tuberculosis.