(5R)-5-[(alpha-D-glucosyl-(1->2)-beta-D-galactosyl)oxy]-L-lysine(1+) residue
(5r)-5-[(alpha-d-glucosyl-(1->2)-beta-d-galactosyl)oxy]-l-lysine(1+) residue
An α-amino-acid cation residue obtained by protonation of the side-chain amino group of (5<i>R</i>)-5-[(α-<small>D</small>-glucosyl-(1→2)-β-<small>D</small>-galactosyl)oxy]-<small>L</small>-lysine residue; major species at pH 7.3.