1JR5
Solution Structure of the Anti-Sigma Factor AsiA Homodimer
SOLUTION NMR
NMR Experiment | ||||||||
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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 | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 600 |
2 | Varian | INOVA | 750 |
NMR Refinement | ||
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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 | |
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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 | |
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Details | The structure was determined using triple-resonance NMR spectroscopy |
Computation: NMR Software | ||||
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# | 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 |