Term Name:	beta-D-Gal-(1->3)-beta-D-GlcNAc-(1->3)-alpha-D-Gal-yl group
Synonyms:	beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-glucosaminyl-(1->3)-alpha-D-galactosyl group, Type 1 chain
Definition:	An α-D-galactosyl group derived from β-D-Gal-(1→3)-β-D-GlcNAc-(1→3)-α-D-Gal The minimum precursor oligosaccharide sequence required by the ABO blood group system to form antigens. This sequence is for Type 1 chains found in secretions.
Ontology:	ChEBI [CHEBI:140162]  ( EBI )