Table 1 Structures of the internal standards and the free-glycan markers.

From: Combination of urinary free-glycan markers for the diagnosis of various malignant tumors

  1. The abbreviations and number of each free-glycan marker are shown above the structure. Monosaccharide symbols are indicated as follows: blue circle, Glc; blue square, GlcNAc; green circle, Man; yellow circle, Gal; red triangle, Fuc; purple diamond, sialic acid (NeuAc); orange star, xylose; green star, arabinose; S, sulfate; black square, GlcNGc.
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