1IEY
SOLUTION STRUCTURE OF THE DNA DUPLEX D(CCACCGGAAC).(GTTCCGGTGG) WITH A CHIRAL ALKYL-PHOSPHONATE MOIETY (DIAESTEREOISOMER R)
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 2mM duplex; 10mM phosphate, 100mM NaCl | 90% H20, 10% D2O | 7.0 | 1 atm | 278 | ||
2 | 2D NOESY | 2mM duplex; 10mM phosphate, 100mM NaCl | D2O | 7.0 | 1 atm | 298 | ||
3 | DQF-COSY | 2mM duplex; 10mM phosphate, 100mM NaCl | D2O | 7.0 | 1 atm | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AMX | 600 |
NMR Refinement | ||
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Method | Details | Software |
simulated, annealing molecular dynamics, matrix relaxation | the structures are based on a total of 280 NOE-derived distance constraints obtained from a complete relaxation matrix refinement. The structures were calculated by using restrained molecular dynamics with explicit solvent, and applying the particle mesh Ewald method. | MARDIGRAS |
NMR Ensemble Information | |
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Conformer Selection Criteria | all calculated structures submitted |
Conformers Calculated Total Number | 10 |
Conformers Submitted Total Number | 10 |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | iterative matrix relaxation | MARDIGRAS | 5.2 | James, T.L. |
2 | refinement | Amber | 5.0 | Kollman, P.A. |
3 | collection | XwinNMR | 1.3 | Bruker |