| Dataset | β-turn Type | Qtotal (%) | Qobserved (%) | Qpredicted (%) | AUC |
| BT426 | Type I | 93.45 | 62.25 | 66.77 | 0.933 |
| Type I’ | 99.28 | 84.83 | 67.76 | 0.985 | |
| Type II | 97.90 | 85.75 | 67.99 | 0.983 | |
| Type II’ | 99.44 | 70.49 | 58.16 | 0.976 | |
| Type IV | 90.18 | 39.16 | 47.83 | 0.823 | |
| Type VI | 98.07 | 26.08 | 8.43 | 0.880 | |
| Type VIII | 90.18 | 64.85 | 16.76 | 0.892 | |
| BT547 | Type I | 93.54 | 64.29 | 68.89 | 0.935 |
| Type I’ | 99.36 | 80.44 | 76.05 | 0.989 | |
| Type II | 98.05 | 85.44 | 71.77 | 0.982 | |
| Type II’ | 99.42 | 74.22 | 58.94 | 0.982 | |
| Type IV | 89.78 | 43.18 | 47.92 | 0.832 | |
| Type VI | 89.08 | 54.20 | 3.07 | 0.847 | |
| Type VIII | 92.28 | 63.85 | 22.10 | 0.916 | |
| BT823 | Type I | 93.65 | 66.25 | 68.46 | 0.940 |
| Type I’ | 99.36 | 85.88 | 74.65 | 0.991 | |
| Type II | 98.10 | 84.82 | 72.12 | 0.983 | |
| Type II’ | 99.45 | 68.60 | 63.35 | 0.978 | |
| Type IV | 90.51 | 38.88 | 51.80 | 0.828 | |
| Type VI | 96.36 | 36.37 | 6.81 | 0.869 | |
| Type VIII | 89.90 | 74.37 | 17.63 | 0.916 |