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. 2020 Dec 30;22(1):304. doi: 10.3390/ijms22010304

Figure 6.

Figure 6

HPLC analysis of N-glycans released from the secreted reporter glycoprotein. N-glycans derived from a modified SEAP overexpressed in wild-type (WT, top panel) and CST-deficient (A1KO, bottom panel) HEK293T cells were fluorescently labeled with 2-AB, purified and separated on the normal phase GlycoSep N column using HPLC. The left panel represents intact (undigested) structures; the middle panel reflects structures obtained upon a combined digestion with galactosidase and hexosaminidase; and the right panel reflects structures obtained upon a digestion with neuraminidase followed by a combined digestion with galactosidase and hexosaminidase. Respective glycans are expressed in glucose units. Sialylated structures are enclosed in brackets. Representative data from two independent analyses with similar tendencies are shown. A1, SLC35A1.