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.
Term:
alpha-D-GalpNAc-(1->3)-[alpha-L-Fucp-(1->2)]-beta-D-Galp-yl group
A branched trisaccharide beta-D-galactosyl group obtained by removal of the hydroxy group from the hemiacetal function of N-acetyl-alpha-D-galactosaminyl-(1->3)-[alpha-L-fucosyl-(1->2)]-beta-D-galactose. Part of, and the proposed epitope of, blood group A antigen.