Table 5. Identification by mass spectrometry of O-glycans released from rat platelet GPIbα.
| RT (min)a | Massb | m/zc | Volume | % Total | Compositiond |
|---|---|---|---|---|---|
| 19.004 | 1057.379 | 529.698 | 195074 | 3.0 | 2-2-0-0-1-0 |
| 20.048 | 1306.461 | 654.238 | 1413851 | 21.6 | 2-2-0-1-0-1 |
| 21.463 | 1306.465 | 654.24 | 1422112 | 21.7 | 2-2-0-1-0-1 |
| 21.987 | 1219.424 | 610.722 | 219467 | 3.4 | 3-2-0-0-1-0 |
| 27.08 | 1364.468 | 683.241 | 895174 | 13.7 | 2-2-0-0-2-0 |
| 27.596 | 1348.477 | 675.244 | 877659 | 13.4 | 2-2-0-1-1-0 |
| 28.244 | 1332.481 | 667.249 | 555317 | 8.5 | 2-2-0-2-0-0 |
| 31.083 | 1729.599 | 865.808 | 406896 | 6.2 | 3-3-0-0-2-0 |
| 31.467 | 1713.611 | 857.813 | 348183 | 5.3 | 3-3-0-1-1-0 |
| 31.889 | 1697.613 | 849.817 | 214646 | 3.3 | 3-3-0-2-0-0 |
aRetention time
bDaltons
cPrecursor ion mass to charge ratio
dHex-HexNAc-Fuc-NeuAc-NeuGc-Neu