Methylation analysis of CMSPA90-1.

Methylation sugar	Retention time (min)	Molar ratio	Mass fragments (m/z)	Linkage type
2,3,4,6-Me4-Gal	16.62	1.00	51, 73, 88, 101, 113, 127	T→
2,3,4-Me3-Glc	17.71	18.06	60, 74, 87, 101, 117, 129, 175	1→6
2,3-Me2-Ara	23.73	50.21	60, 71, 87, 101, 117, 145, 189	1→5
2,5-Me2-Ara	27.46	21.79	60, 71, 87, 101, 117, 145, 189	1→3
2,4-Me2-Man	38.81	2.03	60, 73, 85, 98, 117, 126, 157	1→3,6