Table 3.
Peptide identification and propagation results on data set 1 (FDR < 2%)
| Variable modifications | # of peptides identified | # of spectra interpreted | ||
| All | Glycosylated | |||
| DB search | Deamidation (N) | 479 | 79 | 3514 |
| Oxidation (M) | ||||
| Deamidation (N) | 484 | 82 | 3815 | |
| Oxidation (M) | ||||
| Carbamidomethylation (N-term) | ||||
| Carbamidomethylation (K) | ||||
| Peptide propagation* | Carbamidomethylation | - | - | +537 |
| Cation:Na | - | - | +134 | |
*Peptide propagation is conducted based on the peptide identification results of the first-round database search (first row in the table body). Peptide propagation cannot identify more peptides, but significantly increases the number of interpreted spectra.