Table 2. Root mean square deviations (RMSD) a .
| RMSD (Å) | 0W//EXP | 84W//EXP | 172W//EXP |
| Backbonea | 0.781 | 0.432 | 0.381 |
| α-Helix Ab | 0.442 | 0.243 | 0.177 |
| α-Helix Bb | 0.672 | 0.360 | 0.274 |
| β-Sheetb | 0.551 | 0.364 | 0.297 |
| Random coilb | 1.148 | 0.547 | 0.593 |
aValues in Å with respect to the experimental crambin crystal structure (EXP) after full B3LYP-D*/6-31G(d,p) optimization as computed for aall backbone atoms, bbackbone atoms of defined regions (cf.Fig. 1c) in the cases: 0W: optimized with 0H2O per cell; 84W: optimized with 84H2O per cell; 172W: optimized with 172H2O per cell.