Gal14GlcNAc
Gal14GlcNAc, commonly written Galβ1-4GlcNAc, is a disaccharide consisting of galactose linked to N-acetylglucosamine via a beta-1,4 bond. It is the canonical unit of N-acetyllactosamine (LacNAc), a motif frequently found in glycans.
In glycans, Galβ1-4GlcNAc forms the core repeating LacNAc unit that appears in many N-linked and O-linked glycans
Biological significance lies in its role as a recognition motif. LacNAc units are ligands for lectins such
Analytical notes: LacNAc-containing motifs are routinely studied in glycobiology using exoglycosidase digestion and mass spectrometry or