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Fig. 3 | Clinical Proteomics

Fig. 3

From: Glycomic profiling of carcinoembryonic antigen isolated from human tumor tissue

Fig. 3

MALDI-TOF MS profiles of the permethylated N-linked glycans from CEA of colorectal carcinoma patients. All molecular ions are present in singly charged sodiated form ([M + Na]+). In the glycan structure, blue square refers to N-acetylglucosamine (■), green circle refers to mannose (), yellow circle refers to Galactose (), red triangle refers to Fucose (▲), and purple diamond refers to N –acetylneuraminic acid (♦). a-e refers to mass spectrum of CEA glycans in different mass range

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