. 2014 Oct 10;14(1):491–502. doi: 10.1021/pr500759e

Table 1. Nominal Masses, Monoisotopic Masses, and Compositions of the Reduced HMOs Observed in Infants A and B^a.

	reduced glycan, M		monosaccharide composition				elemental composition				[M + Na]⁺ ion
no.	nominal mass	monoisotopic mass	Hex	HexNAc	Fuc	NeuAc	C	H	N	O	monoisotopic mass
1	709	709.2641	3	1	0	0	26	47	1	21	732.2533
2	855	855.3220	3	1	1	0	32	57	1	25	878.3112
3	1001	1001.3799	3	1	2	0	38	67	1	29	1024.3691
4	1074	1074.3963	4	2	0	0	40	70	2	31	1097.3855
5	1148	1147.4378	3	1	3	0	44	77	1	33	1170.4270
6	1221	1220.4542	4	2	1	0	46	80	2	35	1243.4434
7	1367	1366.5121	4	2	2	0	52	90	2	39	1389.5013
8	1440	1439.5285	5	3	0	0	54	93	3	41	1462.5177
9	1513	1512.5700	4	2	3	0	58	100	2	43	1535.5592
10	1586	1585.5864	5	3	1	0	60	103	3	45	1608.5756
11	1732	1731.6443	5	3	2	0	66	113	3	49	1754.63349
12	1805	1804.6607	6	4	0	0	68	116	4	51	1827.6499
13	1878	1877.7022	5	3	3	0	72	123	3	53	1900.6914
14	1951	1950.7186	6	4	1	0	74	126	4	55	1973.7078
15	2097	2096.7765	6	4	2	0	80	136	4	59	2119.7657

The monoisotopic masses of the [M + Na]⁺ precursor ion, the commonly observed ion in MALDI FT-ICR MS, are also shown. Hex, hexose; HexNAc, N-acetylhexosamine; Fuc, fucose; NeuAc, N-acetylneuraminic acid.

Table 1. Nominal Masses, Monoisotopic Masses, and Compositions of the Reduced HMOs Observed in Infants A and Ba.

Table 1. Nominal Masses, Monoisotopic Masses, and Compositions of the Reduced HMOs Observed in Infants A and B^a.