2NQ4

Solution Structures of a DNA Dodecamer Duplex


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
12D NOESY1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0100% D2O100mM NaCl, 5mM NaPi7.01 atm298
22D TOCSY1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0100% D2O100mM NaCl, 5mM NaPi7.01 atm298
3DQF-COSY1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0100% D2O100mM NaCl, 5mM NaPi7.01 atm298
42D NOESY1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0, 95% H2O, 5% D2O95% H2O/5% D2O100mM NaCl, 5mM NaPi7.01 atm275
52D 1H 31P HETCOR1.5 mM DNA, 100 mM NaCl, 5 mM phosphate buffer, pH 7.0100% D2O100mM NaCl, 5mM NaPi7.01 atm298
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1VarianINOVA600
2VarianINOVA800
NMR Refinement
MethodDetailsSoftware
simulated annealingCNS
NMR Ensemble Information
Conformer Selection Criteriastructures with the lowest energy
Conformers Calculated Total Number20
Conformers Submitted Total Number15
Representative Model1 (minimized average structure)
Additional NMR Experimental Information
DetailsThis structure was determined using standard 2D homonuclear techniques.
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1structure solutionCNS1.1Brunger
2refinementCNS1.1Brunger