A2G2F2 glycan (A2G2F2 (a1-3) glycan) is a Lewis X polysaccharide containing two Lewis X epitopes and is a symmetric N-glycan. SLeX is a ligand for the cell adhesion molecule E-selectin, which is specifically expressed at sites of inflammatory lesions. Designing SLeX-polysaccharide conjugates to deliver drugs to inflammatory lesions[1].
