Fig. 6.

Extracted ion chromatograms of desialylated fucose- and sulfate-containing glycoforms, purified from cyst fluids from benign (labeled ingreen) and malignant ovarian tumors (labeled inred). Glycan sequences were interpreted from MS² experiments. Glycan panel names (895, 975, 1121) correspond to their mass in the deprotonated form and are listed in supplemental Table S1. MS² of a sulfated Lewis b or Lewis y type glycan “1121-1” detected as m/z 1121 ([M-H]⁻ precursor ion) is displayed in the lower panel. For key to symbols, see Figure 1.