Table 2.

Methylation results of DRP2.

Methylated Sugars	Linkages	Molar Ratios	Maior Mass Fragments (m/z)
2,3,5-Me3-Ara	1-linked Ara	4.96	43, 87, 102, 116, 129, 145, 178, 220
3,4-Me2-Rha	1,2-linked-Rha	0.34	43, 89, 100, 116, 130, 143, 190
2,4-Me2-Glc	1,3,6-linked Glc	1.71	43, 87, 100, 118, 127, 139, 169, 234
2,3,4,6-Me4-Glc	1-linked Glc	4.58	43, 87, 102, 116, 127, 145, 172, 205
3,6-Me2-Glc	1,2,4-linked Glc	1.37	43, 88, 99, 113, 130, 167, 190, 218, 233
2,4,6-Me3-Gal	1,3-linked Gal	0.52	43, 87, 101, 118, 129, 143, 161, 181, 234
3,4-Me2-Gal	1,2,6-linked Gal	2.15	43, 87, 100, 116, 127, 190, 232

Glucose-based sugar residues (including 1,3,6-linked Glc, 1-linked Glc and 1,2,4-linked Glc) were highly enriched in DRP2, which were substantially consistent with the results of monosaccharide composition analysis mentioned above.