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Monosaccharide Mass and Low Mass MS/MS (CID) Carbohydrate Marker Ions
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Monosaccharide / |
Composition |
Monoisotopic mass |
Low Mass CID Marker Ions | |
| Intact | Residue | |||
| Hexose, Hex (Galactose, Mannose) |
C6O6H12 | 180.0634 | 162.0528 | 163 |
| Deoxy-Hexose, dHex (Fucose) |
C6O5H12 | 164.0685 | 146.0579 | 147 |
| N-acetylhexoseamine, HexNAc (N-acetylglucoseamine, N-acetylgalactoseamine) |
C8O6NH15 | 221.0899 | 203.0794 | 204 |
| N-acetylneuraminic acid, Neu5Ac, NANA (sialic acid) |
C11O9NH19 | 309.1060 | 291.0954 | 292/274/256 |
| Hex-HexNAc | C14O11NH25 | 383.1428 | 365.1322 | 366 |
| Hex3HexNac2 (Common N-linked Core) |
C46O35N2H76 | 910.3278 | 892.3172 | - |
| Reference: (1) Conboy,
J. J. and Henion, J. D., The determination of glycopeptides by liquid
chromatography/mass spectrometry with collision-induced dissociation, JASMS, 3, 804,1992. (2) Huddleston, M. J., Bean, M. F., Carr, S.
A., Collisional fragmentation of glycopeptides by electrospray ionization LC/MS and LC/MS/MS. Methods for selective detection of glycopeptides in protein digests, Anal. Chem., 65, 877, 1993. |
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