Table 1. Structural statistics for the 10 lowest-energy structures.

NOE distance restraints
Intraresidue (|i — j| = 0)	594
Sequential (|i — j| = 1)	405
Medium-range (1 < |i — j| < 5)	447
Long-range (|i — j| ≥ 5)	198
Φ angle	91
Total	1,735
Mean rms deviations from experimental restraints
Distance restraints, Å	0.016 ± 0.001
Dihedral angle, °	0.207 ± 0.029
Mean rms deviations from ideal geometry
Bonds, Å	0.0027 ± 0.0001
Angles, °	0.461 ± 0.007
Impropers, °	0.336 ± 0.014
rms deviations to the mean structure, Å
All backbone	0.52 ± 0.06
All heavy atoms	1.06 ± 0.10
Backbone in helical region*	0.34 ± 0.05
Heavy atoms in helical region*	0.97 ± 0.11
Heavy atoms in hydrophobic core†	0.51 ± 0.09
Ramachandran statistics from PROCHECK‡
Residues in most favored regions, %	88.9 ± 1.3
Residues in additional allowed regions, %	10.0 ± 1.3
Residues in generously allowed regions, %	1.1 ± 0
Residues in disallowed regions, %	0
Ramachandran statistics from MOLPROBITY§
Residues in favored region, %	85.0 ± 2.1
Residues in allowed regions (including favored regions), %	97.1 ± 0.9

Ten lowest energy structures of 100 calculated structures. None of the structures contain distance violations of >0.2 Å or dihedral-angle violations of >5°. Resonance assignments were described (11).

^*Residues 5—20, 28—48, 57—72, and 80—99

^†Backbone and side chains of 29 nonpolar residues

^‡Ref. 30

^§http://kinemage.biochem.duke.edu and ref. 31