SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample Contents2 mM Erbin PDZ (15N) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride
Solvent90% H2O, 10% D20
Ionic Strength250 mM
pH6.5
Pressure1
Temperature (K)298
Experiment(s):3D_15N-separated_NOESY, HNHA, 3D HNHB, 3D 15N-separated low mixing time TOCSY, 2D-15N-filtered NOESY
Sample Contents2 mM Erbin PDZ (15N,13C) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride
Solvent100% D2O
Ionic Strength250 mM
pH6.5
Pressure1
Temperature (K)298
Experiment(s):3D_13C-separated_NOESY, 3D-13_filtered, 13C-edited NOESY, 2D-13C-filtered NOESY
Spectrometer Information
Manufacturer Model Field Strength
Bruker DRX 600.0
Bruker DRX 800.0
NMR Refinement
Method torsion angle dynamics, simulated annealing
Details The complex was determined using a total of 1717 NOE distance restraints (148 intra residue, 339 sequential, 328 medium range, 699 long-range and 203 intermolecular), 36 hydrogen bond restraints, 156 dihedral angle restraints (86 phi, 44 psi and 26 chi-1) and 82 15N residual dipolar coupling restraints. The best 20 conformers (of 100) had no distance violations greater than 0.12A and no dihedral angle violations greater than 3.0 degrees. RMSD from experimental distance restraints was 0.0055+/-0.0007. The mean backbone rmsd from the mean structure was 0.40+/- 0.05 A for N, Ca and C atoms of residues 10-100. 74% (25%) of residues were in the most favoured (allowed) region of phi/psi space; no residues were in the disallowed region.
NMR Ensemble Information
Conformer Selection Criteria least violation of experimental restraints
Conformers Calculated Total Number 100
Conformers Submitted Total Number 20
Representative Model Choice Rationale
1 closest to the average
Additional NMR Experimental Information
1 The resonance assignments were determined using triple-resonance NMR spectroscopy.
Computation: NMR Software
# Classification Software Name Author
1 collection version: 3.1 XWINNMR bruker
2 data analysis version: 98 FELIX Accelrys
3 refinement version: 2000.1 CNS Accelrys