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TWIM-MS/MS of sodiated complex N-glycan from a human parotid gland. (A) ATDs of diagnostic fragments with TWCCSN2. (B) Tandem mass spectrum of [M + Na]+, including the representation of the precursor structure and fragment assignments. Glycan structures are represented using the Oxford system (notable differences to SNFG nomenclature: yellow diamond = Gal, red diamond = Fuc). Reproduced with permission from ref (374). Copyright 2017 American Chemical Society.
