SOLUTION NMR

NMR Experiment
Experiment Type Sample Contents Ionic Strength Solvent pH Pressure Temprature (K)
1 2D 1H-15N HSQC 1-2 mM [U-98% 13C; U-98% 15N] act ACP, 5% D2O, 95% H2O, 20 mM potassium phosphate, 1 mM sodium azide, 95% H2O/5% D2O ? 95% H2O/5% D2O 5.5 ambient 298
2 3D CBCA(CO)NH 1-2 mM [U-98% 13C; U-98% 15N] act ACP, 5% D2O, 95% H2O, 20 mM potassium phosphate, 1 mM sodium azide, 95% H2O/5% D2O ? 95% H2O/5% D2O 5.5 ambient 298
3 3D HNCO 1-2 mM [U-98% 13C; U-98% 15N] act ACP, 5% D2O, 95% H2O, 20 mM potassium phosphate, 1 mM sodium azide, 95% H2O/5% D2O ? 95% H2O/5% D2O 5.5 ambient 298
4 3D HNCACB 1-2 mM [U-98% 13C; U-98% 15N] act ACP, 5% D2O, 95% H2O, 20 mM potassium phosphate, 1 mM sodium azide, 95% H2O/5% D2O ? 95% H2O/5% D2O 5.5 ambient 298
5 3D HCCH-TOCSY 1-2 mM [U-98% 13C; U-98% 15N] act ACP, 5% D2O, 95% H2O, 20 mM potassium phosphate, 1 mM sodium azide, 95% H2O/5% D2O ? 95% H2O/5% D2O 5.5 ambient 298
6 3D HNHA 1-2 mM [U-98% 13C; U-98% 15N] act ACP, 5% D2O, 95% H2O, 20 mM potassium phosphate, 1 mM sodium azide, 95% H2O/5% D2O ? 95% H2O/5% D2O 5.5 ambient 298
7 3D 1H-15N NOESY 1-2 mM [U-98% 13C; U-98% 15N] act ACP, 5% D2O, 95% H2O, 20 mM potassium phosphate, 1 mM sodium azide, 95% H2O/5% D2O ? 95% H2O/5% D2O 5.5 ambient 298
8 3D 1H-13C NOESY 1-2 mM [U-98% 13C; U-98% 15N] act ACP, 5% D2O, 95% H2O, 20 mM potassium phosphate, 1 mM sodium azide, 95% H2O/5% D2O ? 95% H2O/5% D2O 5.5 ambient 298
NMR Spectrometer Information
Spectrometer Manufacturer Model Field Strength
1 Varian INOVA 600
NMR Refinement
Method Details Software
simulated annealing All structure calculations were carried out using the Ambiguous Restraints for Iterative Assignment of NOEs (ARIA) protocol Version 1.2, which includes an algorithm that attempts to correct for the effects of spin diffusion, was use. Torsion Angle Likelihood Obtained from Shift and sequence similarity (TALOS) and was used to predict φ and ψ dihedral angle restraints. Initially, structure calculation runs contained 8 iterations of 20 structures each, with the best 7 structures in each iteration (sorted according to total energy) being used for analysis and assignment. The number of dynamics steps was increased over default values to 20000 and 16000 for the first and second cooling stages respectively. After each run, violated restraints were checked, and those arising from noise peaks or incorrect assignments were removed/reassigned. Final ensembles of 100 structures were calculated from calibrated restraint tables. The 20 best structures (sorted according to total energy) were selected for water refinement. Water refined structures were calculated using the slightly modified refinement script applied to the RECOORD database. PROCHECK and WHATCHECK and quality indicators were compared to the average values for the RECOORD database of protein NMR structures. 1
NMR Ensemble Information
Conformer Selection Criteria structures with the lowest energy
Conformers Calculated Total Number 20
Conformers Submitted Total Number 20
Representative Model 1 (closest to the average)
Computation: NMR Software
# Classification Version Software Name Author
1 structure solution 1.2 ARIA Linge, O'Donoghue and Nilges
2 processing 1.2 ARIA Linge, O'Donoghue and Nilges
3 refinement 1.2 ARIA Linge, O'Donoghue and Nilges