2LUJ
Solution structure of a parallel-stranded oligoisoguanine DNA pentaplex formed by d(T(iG)4T) in the presence of Cs ions
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 | 0.7 mM DNA (5'-D(*TP*(IGU)P*(IGU)P*(IGU)P*(IGU)P*T)-3') | 90% H2O/10% D2O | 50 | 6.3 | ambient | 300 | |
2 | 2D 1H-1H NOESY | 0.7 mM DNA (5'-D(*TP*(IGU)P*(IGU)P*(IGU)P*(IGU)P*T)-3') | 100% D2O | 50 | 6.3 | ambient | 300 | |
3 | 2D 1H-1H TOCSY | 0.7 mM DNA (5'-D(*TP*(IGU)P*(IGU)P*(IGU)P*(IGU)P*T)-3') | 100% D2O | 50 | 6.3 | ambient | 300 | |
4 | 2D DQF-COSY | 0.7 mM DNA (5'-D(*TP*(IGU)P*(IGU)P*(IGU)P*(IGU)P*T)-3') | 100% D2O | 50 | 6.3 | ambient | 300 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 500 |
2 | Bruker | DRX | 600 |
3 | Bruker | AVANCE | 800 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing | TopSpin |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 200 |
Conformers Submitted Total Number | 16 |
Representative Model | 1 (lowest energy) |
Computation: NMR Software | ||||
---|---|---|---|---|
# | Classification | Version | Software Name | Author |
1 | collection | TopSpin | Bruker Biospin | |
2 | chemical shift assignment | Sparky | Goddard | |
3 | data analysis | Sparky | Goddard | |
4 | peak picking | Sparky | Goddard | |
5 | processing | XwinNMR | Bruker Biospin | |
6 | structure solution | X-PLOR NIH | Schwieters, Kuszewski, Tjandra and Clore | |
7 | refinement | X-PLOR NIH | Schwieters, Kuszewski, Tjandra and Clore |