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Ion-mobilogram of the LFNVTSTLR glycopeptide carrying isobaric HexNAc(4)Hex(5) N-glycans. This composition, commonly described as biantennary galactosylated complex glycan, is separated (A) into the following peaks with distinct MS/MS spectra: (B) hybrid glycopeptide containing LacdiNAc (second ion mobility peak); and (C) biantennary complex LacNAc glycopeptide (third ion mobility peak).
