Table 3.
Mass-charge-ratios (m/z) of peptide fragments detected by MS/MS and difference to the m/z calculated according to the formula of the corresponding R5T0 fragment.
| Fragment | Formula | m/z (calculated) | m/z (measured)a | Difference (ppm) | Difference (mDa) |
|---|---|---|---|---|---|
| bFV | C26H33N4O4S2 | 529.19377 | 529.1933 | -0.9 | -0.47 |
| bFV-CO | C25H33N4O3S2 | 501.19886 | 501.1994 | 1.1 | 0.54 |
| bMF | C17H24N2S2 | 382.12536 | 382.1256 | 0.6 | 0.24 |
| bFM | C12H15N2O2S | 251.08487 | 251.0843 | -2.3 | -0.57 |
| bFM-CO | C11H15N2OS | 223.08996 | 223.0898 | -0.7 | -0.16 |
aMeasured m/z are derived from the MS/MS analysis shown in Figure 5B.