1N7T
ERBIN PDZ domain bound to a phage-derived peptide
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 3D_15N-separated_NOESY | 2 mM Erbin PDZ (15N) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride | 90% H2O, 10% D20 | 250 mM | 6.5 | 1 atm | 298 | |
2 | HNHA | 2 mM Erbin PDZ (15N) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride | 90% H2O, 10% D20 | 250 mM | 6.5 | 1 atm | 298 | |
3 | 3D HNHB | 2 mM Erbin PDZ (15N) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride | 90% H2O, 10% D20 | 250 mM | 6.5 | 1 atm | 298 | |
4 | 3D 15N-separated low mixing time TOCSY | 2 mM Erbin PDZ (15N) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride | 90% H2O, 10% D20 | 250 mM | 6.5 | 1 atm | 298 | |
5 | 2D-15N-filtered NOESY | 2 mM Erbin PDZ (15N) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride | 90% H2O, 10% D20 | 250 mM | 6.5 | 1 atm | 298 | |
6 | 3D_13C-separated_NOESY | 2 mM Erbin PDZ (15N,13C) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride | 100% D2O | 250 mM | 6.5 | 1 atm | 298 | |
7 | 3D-13_filtered, 13C-edited NOESY | 2 mM Erbin PDZ (15N,13C) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride | 100% D2O | 250 mM | 6.5 | 1 atm | 298 | |
8 | 2D-13C-filtered NOESY | 2 mM Erbin PDZ (15N,13C) + 2.2 mM peptide; 25 mM sodium phosphate pH 6.5; 50 mM sodium chloride | 100% D2O | 250 mM | 6.5 | 1 atm | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 600 |
2 | Bruker | DRX | 800 |
NMR Refinement | ||
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Method | Details | Software |
torsion angle dynamics, simulated annealing | 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. | XwinNMR |
NMR Ensemble Information | |
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Conformer Selection Criteria | least violation of experimental restraints |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 20 |
Representative Model | 2 (closest to the average) |
Additional NMR Experimental Information | |
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Details | The resonance assignments were determined using triple-resonance NMR spectroscopy. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | collection | XwinNMR | 3.1 | bruker |
2 | data analysis | Felix | 98 | Accelrys |
3 | refinement | CNS | 2000.1 | Accelrys |