1XCZ
Structure of DNA containing the beta-anomer of a carbocyclic abasic site
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | COSY, DQF-COSY, COSY45, TOCSY, NOESY, [1H-31P]HETCOR | 1.2 mM sample, 50 mM phosphate buffer, 50 mM NaCl, 1 mM EDTA, 99.96% D2O | 100% D2O | 6.9 | ambient | 290 | ||
2 | 2D NOESY | 1.2 mM sample, 50 mM phosphate buffer, 50 mM NaCl, 1 mM EDTA, 90% H2O-10% D2O | 90% H2O/10% D2O | 6.9 | ambient | 277 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | INOVA | 500 |
2 | Varian | INOVA | 600 |
NMR Refinement | ||
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Method | Details | Software |
molecular dynamics | The structures are based on a total of 400 distances between non-exchangeable protons, 26 distance restraints enforcing WC base pairs and 96 backbone dihedral restraints. | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | converging structures (<1.5A) and the least restraints violations |
Conformers Calculated Total Number | 20 |
Conformers Submitted Total Number | 9 |
Representative Model | 1 (closest to the average) |
Additional NMR Experimental Information | |
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Details | Several NOESY spectra recorded using different mixing times. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | refinement | X-PLOR | 3.85 | Brunger |
2 | processing | Felix | 98 | Accelrys |
3 | data analysis | Felix | 98 | Accelrys |
4 | data analysis | Curves | 5.1 | Lavery AND Sklenar |
5 | collection | VNMR | 6.1 | Varian |