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distance geometry and restrained molecular dynamics
The structures are based on 70 NOE distance restraints, 8 phi and 3 chi-1 dihedral angle restraints.
No hydrogen bond restraints were employed.
Note that the Ha-Hb coupling constants indicate rotational averaging about the Phe4 chi-1 angle.
Several NOEs to the aromatic ring of Phe4 were not used to generate restraints as they could be satisfied
by a -60 or 180 degree rotamer, but not by both.
The mean backbone atom RMSD to the mean structure within the disulfide cycle is 0.31 +/- 0.06 Angstoms.
DGII
NMR Ensemble Information
Conformer Selection Criteria
structures with the least restraint violations
Conformers Calculated Total Number
80
Conformers Submitted Total Number
20
Representative Model
1 (closest to the average)
Additional NMR Experimental Information
Details
This structure was determined using standard 2D homonuclear techniques.