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Seeing the Invisible: Structures of Excited Protein States by Relaxation Dispersion NMR
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 15N CT-CW,TROSY,anti-TROSY CPMG ~1.5 mM [90 % U 2H; ~100% U 15N] Abp1p, ~0.105 mM [90% U 2H; ~100% U 15N] Ark1p 90% H2O/10% D2O ~0.150 7.0 ambient 278 2 15N CT-CW,TROSY,anti-TROSY CPMG ~1.5 mM [90 % U 2H; ~100% U 15N] Abp1p, ~0.105 mM Ark1p 90% H2O/10% D2O ~0.150 7.0 ambient 278 3 13CO CT-inphase,TROSY,anti-TROSY CPMG ~1.5 mM [90 % U 2H; ~100% U 15N; 13CO labeled] Abp1p, ~0.105 mM Ark1p 90% H2O/10% D2O ~0.150 7.0 ambient 278 4 13CA CT-CW,TROSY,anti-TROSY CPMG ~1.5 mM [90 % U 2H; ~100% U 15N; 13Ca labeled] Abp1p, ~0.105 mM Ark1p 100% D2O ~0.150 7.0 ambient 278
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian INOVA 500 2 Varian INOVA 800 3 Varian INOVA 600
NMR Refinement Method Details Software simulated annealing X-PLOR NIH
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 960 Conformers Submitted Total Number 10 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 structure solution X-PLOR NIH 2.19 Schwieters, Kuszewski, Tjandra and Clore 2 refinement X-PLOR NIH 2.19 Schwieters, Kuszewski, Tjandra and Clore