Table 4 Validate the confirmed matches by empirical rules (%).
From: A nonparametric model for quality control of database search results in shotgun proteomics
| Â | Empirical rules | ||||||
|---|---|---|---|---|---|---|---|
Instrument | FPR | CSL ≥ 4 | Ions ≥ 0.2 | RSp = 1 | Conts ≥ 0.2 | iIons ≥ 0.25 | nIons ≥ 0.2 |
LCQ | 0.05 | 92.1 | 99.5 | 77.6 | 86.5 | 98.0 | 96.4 |
| Â | 0.01 | 94.5 | 99.8 | 85.9 | 86.5 | 98.6 | 97.6 |
LTQ | 0.05 | 91.5 | 90.5 | 68.6 | 93.4 | 89.9 | 92.7 |
| Â | 0.01 | 96.9 | 99.8 | 75.6 | 95.6 | 96.7 | 97.1 |
LTQ/FT | 0.05 | 99.1 | 100.0 | 67.7 | 98.6 | 97.0 | 99.9 |
| Â | 0.01 | 99.5 | 100.0 | 75.9 | 99.0 | 98.0 | 100.0 |