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 that is GlyTouCan G57818FI in which the terminal galactosyl groups have each been glycosylated by an N-glycolylneuraminic acid group. For the structure shown, one of the R1 atoms and one of the R2 atoms represents a ?-Neu5Gc-(1->?)-?-D-Gal-(1->?)-?-D-GlcNAc-(1->?)- group; the remaining R1 and R2 atoms are hydrogens.