Table 1. Experimental restraints and structural statistics.
| Distance restraints | |
| Unambiguous | 287 |
| Intraresidue | 131 |
| Sequential | 57 |
| Medium range | 99 |
| Hydrogen bond restraints* | 24 |
| Dihedral angle restraints | 58 |
| Ideal geometry rmsd | |
| Bonds, Å | 0.012 |
| Angles, ° | 6.6 |
| Interresidue distance restraints violations | |
| Violations > 0.2 Å | 12 |
| Maximum violation, Å | 0.56 |
| rmsd to average structure, Å | |
| Backbone (residues 8-29) | 0.158 |
| Heavy atoms (residues 8-29) | 0.415 |
| Ramachandran plot statistics, % | |
| Most favored regions | 78.1 |
| Additionally allowed regions | 21.6 |
| Generously allowed regions | 0.3 |
| Disallowed regions | 0.0 |
*
Two restraints per bond, derived from the temperature dependence of amide chemical shifts (Fig. 3a). rmsd, rms deviation.