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The nineteen structures were determined by NMR and torsion angle dynamics/simulated annealing methods. The peptide dimer was treated as a single entity and symmetry elements were not utilized during structure calculations. The structures are based on a total of 276 NOE-derived restraints. The list of constraints is available in the file water_uppercons.txt. Structure calculations were performed with the program DYANA-1.5 (P. Guentert, C. Mumenthaler, K. Wuthrich, J. Mol. Biol.(1997)Vol.273, 283-298). No violation of distance constraints from NOEs exceeded 0.3Angstroms. The ensemble of structures is superimposed over the best-structured region encompasing residues V19-L34. Residues 1-11 were unstructured and their co-ordinates are not given. The average RMSDs between the superposed structures and the average structure are as follows: 1.04(chain A, residues 20-34, backbone atoms) 0.91(chain B, residues 20-34, backbone atoms).
DYANA
NMR Ensemble Information
Conformer Selection Criteria
structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number
400
Conformers Submitted Total Number
19
Representative Model
2 (closest to the average)
Additional NMR Experimental Information
Details
This structure was determined using standard 2D homonuclear techniques.