1JUU
NMR Structure of a Parallel Stranded DNA Duplex at Atomic Resolution
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | COSY, NOESY, TOCSY | 5 mM concentration of each dodecamer strand, 0.05 M deuterated sodium acetate buffer and 0.1 M NaCl | 90% H2O/10% D2O | 100mM NaCl | 5.5 | ambient | 303 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Varian | UNITY | 600 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing, molecular dynamics | Structure was calculated using 78 nOe constraints, 28 hydrogen bond constraints, and 162 dihedral angle constraints. | Discover |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the lowest energy |
Conformers Calculated Total Number | 200 |
Conformers Submitted Total Number | 20 |
Representative Model | 20 (fewest violations,lowest energy) |
Additional NMR Experimental Information | |
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Details | Structure was determined using 2D homonuclear experiments. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | structure solution | Discover | 3.1 | MSI |
2 | refinement | Discover | 3.1 | MSI |