2KX8
NMR structure of stem-loop 4 from the human 7SK snRNA in complex with arginine
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D 1H-1H NOESY | 1 mM 7SK-1 | 90% H2O/10% D2O | 0.02 | 5.2 | ambient | 301 | |
2 | 2D 1H-13C HSQC | 2 mM [U-13C; U-15N]-Ade/Ura 7SK-AU-2 | 100% D2O | 0.02 | 5.2 | ambient | 301 | |
3 | 3D 1H-13C NOESY | 2 mM [U-13C; U-15N]-Ade/Ura 7SK-AU-2 | 100% D2O | 0.02 | 5.2 | ambient | 301 | |
4 | 2D 1H-13C HSQC | 2 mM [U-13C; U-15N]-Gua/Cyt 7SK-GC-3 | 100% D2O | 0.02 | 5.2 | ambient | 301 | |
5 | 3D 1H-13C NOESY | 2 mM [U-13C; U-15N]-Gua/Cyt 7SK-GC-3 | 100% D2O | 0.02 | 5.2 | ambient | 301 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DMX | 700 |
NMR Refinement | ||
---|---|---|
Method | Details | Software |
torsion angle dynamics | CYANA |
NMR Ensemble Information | |
---|---|
Conformer Selection Criteria | structures with the least restraint violations |
Conformers Calculated Total Number | 200 |
Conformers Submitted Total Number | 10 |
Representative Model | 1 (lowest energy) |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | structure solution | CYANA | Guntert, Mumenthaler and Wuthrich | |
2 | refinement | CYANA | Guntert, Mumenthaler and Wuthrich |