Figure 1.

N‐glycan profile of swine lung. MALDI‐TOF mass spectra of permethylated N‐glycans from the intermedidate lobe of swine lung was obtained from the 50% MeCN fraction from a C18 Sep‐Pak column (“Materials and Methods”). Annotated structures are according to the Consortium for Functional Glycomics guidelines. All molecular ions are [M+Na]+. Putative structures are based on composition, tandem MS, and the biosynthetic knowledge. Structures that show sugars outside a bracket have not been unequivocally defined. Sialylated species are annotated in red and those with GalαGal are annotated in blue.