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Structure of an engineered splicing intein mutant based on Mycobacterium tuberculosis RecA
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 3D HCCH-COSY 50 mM sodium phosphate, 100 mM sodium chloride, 1 mM sodium azide, 0.15-0.2 mM [U-98% 13C; U-98% 15N] protein 90% H2O/10% D2O 150 7 ambient 298 2 3D HNCACB 50 mM sodium phosphate, 100 mM sodium chloride, 1 mM sodium azide, 0.15-0.2 mM [U-98% 13C; U-98% 15N] protein 90% H2O/10% D2O 150 7 ambient 298 3 3D 1H-13C NOESY aliphatic 50 mM sodium phosphate, 100 mM sodium chloride, 1 mM sodium azide, 0.15-0.2 mM [U-98% 13C; U-98% 15N] protein 90% H2O/10% D2O 150 7 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker ARX 800 2 Bruker ARX 600
NMR Refinement Method Details Software simulated annealing Sparky
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 200 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 chemical shift assignment Sparky Goddard 2 structure solution X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 3 refinement X-PLOR NIH