2GD7
The Structure of the Cyclin T-binding domain of Hexim1 reveals the molecular basis for regulation of transcription elongation
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 | 0.6 mM U-15N,13C, 20 mM potassium phosphate buffer, pH 7.2, 50 mM NaCl, 10mM TCEP/HCl, 1 mM DTE, 0.02% Na-azide | 100% D2O | 50 mM NaCl, 20 mM KPi | 7.2 | ambient | 308 | |
2 | 3D_15N-separated_NOESY | 1.2 mM U-15N, 20 mM potassium phosphate buffer, pH 7.2, 50 mM NaCl, 10mM TCEP/HCl, 1 mM DTE, 0.02% Na-azide, 95% H2O, 5% D2O | 95% H2O/5% D2O | 50 mM NaCl, 20 mM KPi | 7.2 | ambient | 308 | |
3 | 3D 13C-filter-edit-NOESY | 0.5 mM U-15N,13C, 0.5 mM unlabeled, 20 mM potassium phosphate buffer, pH 7.2, 50 mM NaCl, 10mM TCEP/HCl, 1 mM DTE, 0.02% Na-azide, 95% H2O, 5% D2O | 95% H2O/5% D2O | 50 mM NaCl, 20 mM KPi | 7.2 | ambient | 308 | |
4 | 3D HNHA, 3D HNHB | 1.2 mM U-15N, 20 mM potassium phosphate buffer, pH 7.2, 50 mM NaCl, 10mM TCEP/HCl, 1 mM DTE, 0.02% Na-azide, 95% H2O, 5% D2O | 95% H2O/5% D2O | 50 mM NaCl, 20 mM KPi | 7.2 | ambient | 308 | |
5 | 3D HACAHB-COSY | 0.6 mM U-15N,13C, 20 mM potassium phosphate buffer, pH 7.2, 50 mM NaCl, 10mM TCEP/HCl, 1 mM DTE, 0.02% Na-azide | 100% D2O | 50 mM NaCl, 20 mM KPi | 7.2 | ambient | 308 | |
6 | 2D 15N-IPAP-HSQC, 3D HNCACO | 0.6 mM U-15N,13C, 20 mM potassium phosphate buffer, pH 7.2, 50 mM NaCl, 10mM TCEP/HCl, 1 mM DTE, 0.02% Na-azide | 95% H2O, 5% D2O, 16 mg/ml PF1 phage | 50 mM NaCl, 20 mM KPi | 7.2 | ambient | 308 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 800 |
2 | Bruker | DRX | 600 |
NMR Refinement | ||
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Method | Details | Software |
torsion angle dynamics and cartesian coordinate simulated annealing | The structures are based on a total of 2592 NOE distance restraints, 163 dihedral angle restraints, 102 hydrogen bonds distance restraints, and 80 RDC restraints per monomer. | NMRPipe |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 200 |
Conformers Submitted Total Number | 20 |
Representative Model | 1 (lowest energy) |
Additional NMR Experimental Information | |
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Details | The structure was determined using triple-resonance NMR spectroscopy in solution. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | processing | NMRPipe | F.Delaglio | |
2 | data analysis | NMRView | 5.0.4 | B.A.Johnson |
3 | structure solution | X-PLOR-NIH | 2.9.9 | A.T.Bruenger, C.D.Schwieters |
4 | refinement | X-PLOR-NIH | 2.9.9 | A.T.Bruenger, C.D.Schwieters |