GlcNAcβ(1-3)GalNAc-α-Thr is a glycosylated amino acid that plays a significant role in the study of glycoproteins and their biological functions. It is commonly used in glycobiology research to investigate the structure and function of O-linked glycans, particularly those attached to threonine residues in proteins. This compound is valuable for understanding the role of glycosylation in cell signaling, protein stability, and immune response. It is also utilized in the development of synthetic glycopeptides for vaccine design and therapeutic applications, as it mimics natural glycoproteins involved in pathogen recognition and immune modulation. Additionally, it serves as a substrate for enzymes like glycosyltransferases and glycosidases, aiding in the study of enzymatic pathways and the development of enzyme inhibitors. Its applications extend to the field of cancer research, where abnormal glycosylation patterns are often associated with tumor progression and metastasis.