TABLE 1.
Structural statistics for the ensemble structures of CaBP1
| Mg2+-bound N-domain | Mg2+-bound C-domain | Ca2+-bound C-domain | |
|---|---|---|---|
| NOE restraints | 874 | 795 | 814 |
| Intra (|i-j| = 0) | 198 | 284 | 324 |
| Medium (0<|i-j|≤4) | 473 | 338 | 309 |
| Long (|i-j|>4) | 203 | 173 | 181 |
| Hydrogen bonds restraints | 56 | 50 | 50 |
| Dihedral angle restraints (ϕ,ψ) | 96 | 88 | 88 |
| Root mean square deviation from ideal geometry | |||
| Bond length (Å) | 0.0069 ± 0.0001 | 0.0068 ± 0.0003 | 0.0065 ± 0.0001 |
| Bond angle (deg) | 1.87 ± 0.008 | 1.87 ± 0.007 | 1.83 ± 0.0007 |
| Root mean square deviation from average structure (Å) | |||
| Secondary structure (backbone) | 0.58 ± 0.14 | 0.47 ± 0.09 | 0.51 ± 0.10 |
| Secondary structure (heavy) | 1.22 ± 0.10 | 1.33 ± 0.11 | 1.30 ± 0.10 |
| Ramachandran plot (%) | |||
| Most favored region | 73.8 | 77.4 | 79.4 |
| Allowed region | 26.1 | 21.6 | 19.8 |
| Disallowed region | 0.0 | 1.0 | 0.8 |
| Average energy (kcal mol−1) | |||
| Total | 1359.3 | 1217.4 | 1190.8 |
| Distance | 61.5 | 47.7 | 35.3 |