Table 3.
Identified glycoproteins carrying sialylated N-glycans without any detectable core fucosylation.
| Peptide <ProteinMetrics confidential> | Glycans NHFAGNa | Observed m/z | z | Observed (M + H) | Calc. mass (M + H) | Mass error (ppm) | Cleavage | Score |
|---|---|---|---|---|---|---|---|---|
| Vitronectin | P04004 | |||||||
| R.N[+2,204.772]ISDGFDGIPDNVDAALALPAHSYSGR.E | HexNAc(4)Hex(5)NeuAc(2) | 1,245.033 | 4 | 4,977.110 | 4,977.095 | 3.0 | Specific | 253.8 |
| K.NN[+2,204.772]ATVHEQVGGPSLTSDLQAQSK.G | HexNAc(4)Hex(5)NeuAc(2) | 1,147.492 | 4 | 4,586.948 | 4,585.942 | 0.6 | Specific | 132.6 |
| K.N[+2,204.772]GSLFAFR.G | HexNAc(4)Hex(5)NeuAc(2) | 1,039.423 | 3 | 3,116.253 | 3,116.246 | 2.4 | Specific | 147.7 |
| R.N[+2,204.772]ISDGFDGIPDNVDAALALPAHSYSGR.E | HexNAc(4)Hex(5)NeuAc(2) | 830.524 | 6 | 4,978.108 | 4,977.095 | 1.9 | Specific | 353.2 |
| K.N[+1,419.502]GSLFAFR.G | HexNAc(3)Hex(5) | 1,165.992 | 2 | 2,330.978 | 2,330.976 | 0.9 | Specific | 105.9 |
| R.N[+1,622.582]ISDGFDGIPDNVDAALALPAHSYSGR.E | HexNAc(4)Hex(5) | 1,099.733 | 4 | 4,395.911 | 4,394.904 | 0.9 | Specific | 131.3 |
| K.N[+1,913.677]GSLFAFR.G | HexNAc(4)Hex(5)NeuAc(1) | 942.390 | 3 | 2,825.155 | 2,825.150 | 1.7 | Specific | 53.6 |
| K.N[+1,622.582]GSLFAFR.G | HexNAc(4)Hex(5) | 845.356 | 3 | 2,534.054 | 2,534.055 | -0.4 | Specific | 147.9 |
| R.N[+1,622.582]ISDGFDGIPDNVDAALALPAHSYSGR.E | HexNAc(4)Hex(5) | 1,099.484 | 4 | 4,394.913 | 4,394.904 | 2.0 | Specific | 292.9 |
| Alpha-1-antitrypsin | P01009 | |||||||
| K.YLGN[+2,204.772]ATAIFFLPDEGK.L | HexNAc(4)Hex(5)NeuAc(2) | 990.924 | 4 | 3,960.674 | 3,960.668 | 1.6 | Specific | 485.1 |
| R.QLAHQSN[+1,622.582]STNIFFSPVSIATAFAMLSLG TK.A | HexNAc(4)Hex(5) | 1,202.063 | 4 | 4,805.229 | 4,804.217 | 1.9 | Specific | 275.4 |
| R.QLAHQSN[+1,622.582]STNIFFSPVSIATAFAM[+15.995]LSLGTK.A | HexNAc(4)Hex(5) | 1,206.063 | 4 | 4,821.228 | 4,820.212 | 2.8 | Specific | 179.1 |
| K.YLGN[+1,913.677]ATAIFFLPDEGK.L | HexNAc(4)Hex(5)NeuAc(1) | 1,223.866 | 3 | 3,669.583 | 3,669.572 | 2.9 | Specific | 509.1 |
| K.YLGN[+1,622.582]ATAIFFLPDEGK.L | HexNAc(4)Hex(5) | 1,126.831 | 3 | 3,378.479 | 3,378.477 | 0.7 | Specific | 626.8 |
| Torsin-1A-interacting protein | Q5JTV8 | |||||||
| R.SQTFLEKHLN[+1,702.581]SSHPR.S | HexNAc(2)Hex(8) | 697.504 | 5 | 3,483.492 | 3,483.490 | 0.4 | Specific | 356.2 |
| R.SQTFLEKHLN[+1,913.677]SSHPR.S | HexNAc(4)Hex(5)NeuAc(1) | 1,232.204 | 3 | 3,694.599 | 3,694.586 | 3.4 | Specific | 205.4 |
| R.SQTFLEKHLN[+2,204.772]SSHPR.S | HexNAc(4)Hex(5)NeuAc(2) | 997.179 | 4 | 3,985.696 | 3,985.681 | 3.5 | Specific | 185.1 |
| Metalloreductase STEAP3 | Q658P3 | |||||||
| K.QVLAN[+1,913.677]KSHLWVEEEVWR.M | HexNAc(4)Hex(5)NeuAc(1) | 1,009.951 | 4 | 4,036.780 | 4,036.780 | 0.0 | Specific | 196.8 |
| K.QVLAN[+2,204.772]KSHLWVEEEVWR.M | HexNAc(4)Hex(5)NeuAc(2) | 866.384 | 5 | 4,327.891 | 4,327.876 | 3.6 | Specific | 139.2 |