Large-scale preparation of glycopeptides harboring the TF-antigen unit from royal jelly

We have reported that new N-glycans carrying the TF-antigen occurred on a major royal jelly glycoprotein, and we have identified the glycosylation site to which the antigenic N-glycan is linked, but an appropriate procedure has not been established to prepare non-labeled immunoreactive glycopeptides in large amounts for functional analysis. In this study, we developed an effective method of preparing Asn-glycopeptide bearing TF-antigen.