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PDZ2 from PTP-BL in complex with the C-terminal ligand from the APC protein
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 3D_15N-separated_NOESY 1mM PDZ2 protein, U-15N,13C;
3mM APC peptide, unlabelled 50 mM KH2PO4/K2HPO4
50 mM KCl,
pH 6.8,
H2O/D2O (95%/5%) 100 6.8 1 atm 298 2 3D_13C-separated_NOESY 1mM PDZ2 protein, U-15N,13C;
3mM APC peptide, unlabelled 50 mM KH2PO4/K2HPO4
50 mM KCl,
pH 6.8,
H2O/D2O (95%/5%) 100 6.8 1 atm 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian INOVA 600 2 Varian INOVA 800
NMR Refinement Method Details Software Initial calculations with XPLOR version 3.851, followed by restrained molecular dynamics protocol under a CHARMM22 forcefield. 1470 distance restraints (intra/sequential/medium/long/inter)
(529/323/166/378/74), 28 hydrogen bonds, Dihedral angle restraints (phi/psi/chi) (69/72/13) NMRPipe
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 200 Conformers Submitted Total Number 35 Representative Model 1 (closest to the average)
Computation: NMR Software # Classification Version Software Name Author 1 processing NMRPipe 2003 Delaglio 2 refinement X-PLOR 3.851 Brunger 3 refinement CHARMM 22 MacKerell