A2G2S2 glycan (G2S2), 2-AB labelled

A2G2S2 glycan (G2S2), identified as a 2-AB labelled N-linked oligosaccharide (A2G2S2 N-linked oligosaccharide, 2-AB labelled; A2G (4) 2S (6) 2 glycan, 2-AB labelled), is a polymeric N-glycoprotein that acts as a versatile fluorescent linker. The resulting conjugates exhibit high sensitivity and specificity by mimicking the antennal structures of N-glycans.