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. 2013 Jan 15;8(1):e54672. doi: 10.1371/journal.pone.0054672

Figure 4. Mannosidase treatment of glycans released from enzymatically untreated HeLa cells.

Figure 4

Column height of each individual glycan group is normalized to the highest one, set to 100 (GP7). Gray column (GP11) represents an internal standard (2-aminobenzamide labeled dextran peak) added in order to equalize and normalize peak signals, correctly interpret background signals and verify the composition and percentages of oligomannose structures within these peaks.