1G80
NMR SOLUTION STRUCTURE OF D(GCGTACGC)2
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 4 mM DNA duplex | 99.9% D2O | NaCl(100mM), PO4-(20mM), NaN3(10mM), EDTA(0.1mM) | 7.0 | ambient | 298 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| The RANDMARDI procedure of the complete relaxation matrix analysis method, MARDIGRAS, was used to calculate interproton distance bounds from the integrated NOESY cross-peak intensities. These distance bounds were then used as restraints in an RMD procedure to yield 20 structures. | The structures are based on a total of 524 restraints, 502 are NOE-derived distance constraints and 22 distance restraints from hydrogen bonds. | VNMR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | back calculated data agree with experimental NOESY spectrum |
| Conformers Calculated Total Number | 20 |
| Conformers Submitted Total Number | 20 |
| Representative Model | 12 (lowest pairwise rmsd from other conformers) |
| Additional NMR Experimental Information | |
|---|---|
| Details | This structure was determined using standard 2D homonuclear techniques. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | VNMR | 6.1b | Varian |
| 2 | data analysis | Felix | 98.0 | MSI |
| 3 | iterative matrix relaxation | MARDIGRAS | 3.2 | James, TL |
| 4 | structure solution | Discover | 2.98 | MSI |
| 5 | refinement | Discover | 2.98 | MSI |
