Table 2.
Comparison of optimized geometries obtained by DPA-2 model and GFN2-xTB with those obtained using reference DFT method of B97xD. DPA-2s.f.RDkit, DPA-2 s.f.XTB, and DPA-2 s.f.DFT refer to DPA-2-Drug against DFT results obtained starting with RDkit-generated, GFN2-xTB-optimized, and DFT-optimized geometries, respectively. GFN2-xTBs.f.RDkit and GFN2-xTBs.f.DFT indicate GFN2-xTB against DFT results obtained starting with RDkit-generated and DFT-optimized molecule conformations, respectively.
| Metric (MAE) | XTBs.f.RDkit | XTB s.f.DFT | DPA-2s.f.RDkit | DPA-2s.f.XTB | DPA-2s.f.DFT |
|---|---|---|---|---|---|
| RMSD (Å) | 1.25 | 0.81 | 0.86 | 0.57 | 0.25 |
| Bond length (Å) | 0.00585 | 0.00572 | 0.00117 | 0.00100 | 0.00083 |
| Angles (°) | 0.68 | 0.61 | 0.30 | 0.25 | 0.20 |
| Torsion (°) | 12.53 | 8.39 | 7.66 | 5.59 | 3.20 |