TABLE 1.
Composition of the observed 66-kDa N-glycans according to the positive-ion MALDI-TOF MS and negative-ion ESI-MS spectra
| Glycan | Positive ion [M+Na]+ |
Positive ion [M+2AB+Na]+ |
Negative ion [M+H2PO4]− |
Composition |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Found | Calculated | Found | Calculated | Found | Calculated | Hex | O-Me Hex | Pentose | HexNAc | |
| m/z | ||||||||||
| 1F | 1917.5 | 1917.70 | 2037.6 | 2037.77 | 1991.6 | 1991.65 | 5 | 3 | 1 | 2 |
| 3F | 2049.5 | 2049.74 | 2169.7 | 2169.81 | 2123.6 | 2123.69 | 5 | 3 | 2 | 2 |
| 4F | 2080.5 | 2079.75 | 2199.8 | 2200.82 | 2153.7 | 2153.70 | 6 | 3 | 1 | 2 |
| 5F | 2211.5 | 2211.79 | 2331.6 | 2331.86 | 2285.7 | 2285.74 | 6 | 3 | 2 | 2 |