SOLUTION NMR Experimental Data

Experimental Details
Sample Conditions
Sample Contents1mM B4dimer, trimethylsilylpropionate, 90% H2O, 10% D2O
Solvent90% H2O/10% D2O
Ionic Strengthunbuffered
Temperature (K)323
Experiment(s):2D NOESY, DQF-COSY, TOCSY
Spectrometer Information
Manufacturer Model Field Strength
Bruker DRX 500.0
NMR Refinement
Method torsion angle dynamics/ simulated annealing
Details 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).
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 Choice Rationale
1 closest to the average
Additional NMR Experimental Information
1 This structure was determined using standard 2D homonuclear techniques.
Computation: NMR Software
# Classification Software Name Author
1 structure solution version: 1.5 DYANA Guentert
2 refinement version: 1.5 DYANA Guentert