Table 2.
Pilosulin-like peptide sequences analyzed from MS/MS spectra.
| Fraction No. | Retention Time (min) | Amino Acid Sequence | Observed Molecular Mass a | Derivative |
|---|---|---|---|---|
| 9 | 8.15 | KVMDWLKDKM-NH2 | 1291.677 | PLP1 |
| 11 | 8.55 | VMDWLKDKM-NH2 | 1163.582 | PLP1 |
| 11 | 8.75 | AAANAAASEALSAMASQNE | 1776.795 | PLP3 |
| 12 | 9.08 | GLLDWGK | 787.423 | PLP1 |
| 12 | 9.21 | GWGSLFK | 793.412 | PLP2 |
| 12 | 9.40 | GWGSLFKT | 894.458 | PLP2 |
| 13 | 9.54 | GWGSLFKTVGKM | 1309.685 | PLP2 |
| 14 | 10.95 | GWGSLFKTVGKMLAKAAVK | 1991.142 | PLP2 |
| 14 | 11.08 | KTALEAAANAAASEALSAMASQNE | 2319.098 | PLP3 |
| 15 | 11.86 | GLLDWGKKVMDWLKDKm-NH2 | 2077.083 | PLP1 |
| 16 | 12.75 | GLLDWGKKVMDWLKDKM-NH2 | 2061.090 | PLP1 |
a monoisotopic mass, L = either L or I; m = methionine S-oxide.