Mass spectrometric analysis of the immunodominant glycan epitope of Echinococcus granulosus antigen Ag5

► Echinococcus granulosus antigen, Ag5, possesses an immunodominant glycan epitope. ► The N-glycans and glycopeptides of the E. granulosus Ag5 38 kDa subunit were analysed by mass spectrometry. ► Analyses verified the presence of phosphorylcholine on a cestode protein.