Solution Structure of the C-terminal RpoN Domain of Sigma-54 from Aquifex aeolicus
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 3D_15N-separated_NOESY | 0.8 mM Sigma-54 U-15N; 50 mM Hepes; 250 mM NaCl; 1 mM EDTA; 90% H20; 10% D20 | 90% H20; 10% D20 | 50 mM Hepes; 250 mM NaCl | 6.8 | ambient | 298 | |
2 | 3D_N15-seperated_TOCSY | 0.8 mM Sigma-54 U-15N; 50 mM Hepes; 250 mM NaCl; 1 mM EDTA; 90% H20; 10% D20 | 90% H20; 10% D20 | 50 mM Hepes; 250 mM NaCl | 6.8 | ambient | 298 | |
3 | HNCA-J | 0.8 mM Sigma-54 U-15N U-13C; 50 mM Hepes; 250 mM NaCl; 1 mM EDTA; 90% H20; 10% D20 | 90% H20; 10% D20 | 50 mM Hepes; 250 mM NaCl | 6.8 | ambient | 298 | |
4 | HCCH-TOCSY | 0.8 mM Sigma-54 U-15N U-13C; 50 mM Hepes; 250 mM NaCl; 1 mM EDTA; 90% H20; 10% D20 | 90% H20; 10% D20 | 50 mM Hepes; 250 mM NaCl | 6.8 | ambient | 298 | |
5 | 3D_13C-separated_NOESY | 0.8 mM Sigma-54 U-15N U-13C; 50 mM Hepes; 250 mM NaCl; 1 mM EDTA; 90% H20; 10% D20 | 90% H20; 10% D20 | 50 mM Hepes; 250 mM NaCl | 6.8 | ambient | 298 | |
6 | 2D_C13-HSQC | 0.8 mM Sigma-54 U-15N U-10% 13C; 50 mM Hepes; 250 mM NaCl; 1 mM EDTA; 90% H20; 10% D20 | 90% H20; 10% D20 | 50 mM Hepes; 250 mM NaCl | 6.8 | ambient | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 600 |
NMR Refinement | ||
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Method | Details | Software |
torsion angle dynamics | Structures are based on a total 1064 restraints: 956 distance and 108 dihedral angle | NMRPipe |
NMR Ensemble Information | |
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Conformer Selection Criteria | target function |
Conformers Calculated Total Number | 150 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (lowest dyana target function) |
Additional NMR Experimental Information | |
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Details | Other experiments performed and used for chemical shift assignments and obtaining restraints: CBCA(CO)NH, DQF-COSY, CC(CO)NH, H/D Exchange via N15-HSQC, HNHA - J couplings |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | processing | NMRPipe | 2.3 | Delaglio et al. (1995) |
2 | data analysis | NMRView | 5.0.4 | Johnson & Blevins (1994) |
3 | structure solution | DYANA | 1.5 | Guntert et al. (1997) |
4 | refinement | DYANA | 1.5 | Guntert et al. (1997) |