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Solution Structure of the Anti-Sigma Factor AsiA Homodimer
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 3D_13C-separated_NOESY 1.5 mM AsiA U-13C, 15N; 50 mM d4-acetate, 50 mM KCl; 90% H2O, 10% D2O 90% H2O/10% D2O 50 mM d4-acetate, 50 mM KCl 6.3 ambient 298 2 3D_15N-separated_NOESY 1.5 mM AsiA U-13C, 15N; 50 mM d4-acetate, 50 mM KCl; 90% H2O, 10% D2O 90% H2O/10% D2O 50 mM d4-acetate, 50 mM KCl 6.3 ambient 298 3 HNHA 1.5 mM AsiA U-15N; 50 mM d4-acetate, 50 mM KCl; 90% H2O, 10% D2O 90% H2O/10% D2O 50 mM d4-acetate, 50 mM KCl 6.3 ambient 298 4 3D_13C_F1-filtered_F3-edited_NOESY-HSQC 1.0 mM U-13C, 15N and 1.0 mM unlabeled; 50 mM d4-acetate, 50 mM KCl; 90% H2O, 10% D2O 90% H2O/10% D2O 50 mM d4-acetate, 50 mM KCl 6.3 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Varian INOVA 600 2 Varian INOVA 750
NMR Refinement Method Details Software simulated annealing, molecular dynamics, torsion angle and cartesian dynamics 2061 total NOE-based distance restraints including 34 hydrogen bond restraints and 36 intermolecular restraints, 153 dihedral angle restraints VNMR
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 50 Conformers Submitted Total Number 25 Representative Model 1 (lowest energy)
Additional NMR Experimental Information Details The structure was determined using triple-resonance NMR spectroscopy
Computation: NMR Software # Classification Version Software Name Author 1 collection VNMR 6.1C Varian Inc. 2 processing Felix 2000 Molecular Simulations 3 data analysis Felix 2000 Molecular Simulations 4 structure solution CNS 1.0 Brunger et al 5 refinement CNS 1.0 Brunger et al