Term Name:	O(3)-[N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl]-L-serine(1-) residue
Synonyms:	O(3)-[alpha-Neu5Ac-(2->3)-beta-D-Gal-(1->3)-alpha-D-GalNAc]-L-Ser(1-) residue, O(3)-[N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl]-L-serine residue
Definition:	An alpha-amino-acid residue anion obtained by deprotonation of the carboxy group of O(3)-[N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl]-L-serine residue; major species at pH 7.3.
Ontology:	ChEBI [CHEBI:139597]  ( EBI )