Table 2.
Accuracy of virtual screening by Vina for the DUD-E dataset. Experimental and predicted binding sites are used in molecular docking with the default and optimized box sizes. Average values and the corresponding standard deviations are reported; p-values are calculated using the Wilcoxon signed-rank test
| Metric | Dataseta | Experimental binding sites | Predicted binding sites | ||||
|---|---|---|---|---|---|---|---|
| Default | Optimized | p-value | Default | Optimized | p-value | ||
| EF1 % | D77 | 8.126 ± 7.881 | 8.131 ± 7.567 | 0.795 | 7.670 ± 7.886 | 8.205 ± 8.245 | 0.108 |
| D101 | 7.714 ± 8.311 | 7.782 ± 7.806 | 1.000 | - | - | - | |
| EF10 % | D77 | 3.324 ± 1.738 | 3.443 ± 1.827 | 0.142 | 3.193 ± 1.701 | 3.283 ± 1.754 | 0.073 |
| D101 | 3.137 ± 1.717 | 3.295 ± 1.815 | 0.034 | - | - | - | |
| BEDROC20 | D77 | 0.229 ± 0.140 | 0.234 ± 0.141 | 0.274 | 0.218 ± 0.136 | 0.229 ± 0.142 | 0.041 |
| D101 | 0.214 ± 0.138 | 0.223 ± 0.140 | 0.067 | - | - | - | |
| AUC | D77 | 0.697 ± 0.130 | 0.703 ± 0.123 | 0.065 | 0.688 ± 0.130 | 0.689 ± 0.131 | 0.082 |
| D101 | 0.690 ± 0.125 | 0.697 ± 0.118 | 0.006 | - | - | - | |
| ACT-50 % | D77 | 0.244 ± 0.165 | 0.234 ± 0.151 | 0.030 | 0.251 ± 0.160 | 0.251 ± 0.163 | 0.101 |
| D101 | 0.254 ± 0.159 | 0.240 ± 0.146 | 0.006 | - | - | - | |
aD77 is the subset of DUD-E containing only those proteins whose binding sites are detected by eFindSite, D101 is the entire DUD-E dataset