1G7Z
NMR SOLUTION STRUCTURE OF D(CGCTAGCG)2
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | 4 mM DNA duplex | 99.96% D2O | NaCl(100mM),PO4-(20mM),NaN3(10mM),EDTA(0.1mM) | 7.0 | ambient | 298 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 500 |
NMR Refinement | ||
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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 540 restraints, 518 are NOE-derived distance constraints and 22 distance restraints from hydrogen bonds. | VNMR |
NMR Ensemble Information | |
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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 | |
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Details | This structure was determined using standard 2D homonuclear techniques. |
Computation: NMR Software | ||||
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# | 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 |