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Solution Structures of the IIA(Chitobiose)-HPr complex of the N,N'-Diacetylchitobiose Branch of the Escherichia coli Phosphotransferase System
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-15N HSQC 1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O 95% H2O/5% D2O 0.02 7.4 ambient 308 2 3D CBCA(CO)NH 1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O 95% H2O/5% D2O 0.02 7.4 ambient 308 3 3D HN(COCA)CB 1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O 95% H2O/5% D2O 0.02 7.4 ambient 308 4 3D HNCA 1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O 95% H2O/5% D2O 0.02 7.4 ambient 308 5 c13-c12 edited/filted NOESY 1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O 95% H2O/5% D2O 0.02 7.4 ambient 308
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 600 2 Bruker AVANCE 800 3 Bruker AVANCE 900
NMR Refinement Method Details Software torsion angle dynamics conjoined rigid body/torsion
angle simulated annealing X-PLOR NIH
NMR Ensemble Information Conformer Selection Criteria structures with the least restraint violations Conformers Calculated Total Number 100 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 geometry optimization X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 2 data analysis X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 3 chemical shift assignment X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 4 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore