Table 8. The performance (coverage metric) of the PSI-BLAST search on the main dataset using a five-fold cross-validation.
Transporter class | Coverage (%) at E-value cutoff thresholds | ||
1E-4 | 1E-10 | 1E-50 | |
Amino acid | 74.29 | 74.29 | 52.86 |
Anion | 40.00 | 38.33 | 31.67 |
Cation | 68.46 | 62.69 | 41.54 |
Electron | 30.00 | 30.00 | 13.33 |
Protein/mRNA | 34.29 | 32.86 | 21.43 |
Sugar | 68.33 | 65.00 | 51.67 |
Other | 59.00 | 56.50 | 38.50 |
Non-transporter | 34.67 | 25.50 | 7.67 |