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 2F87 | pdb_00002f87

Solution structure of a GAAG tetraloop in SRP RNA from Pyrococcus furiosus


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
12D NOESY2.0mM RNA Buffer Na; 95% H2O, 5% D2O; 2.0mM RNA; 20mM Phosphate Buffer Na; 100% D2O95% H2O/5% D2O50mM NaCl6.5ambient283
22D TOCSY2.0mM RNA Buffer Na; 95% H2O, 5% D2O; 2.0mM RNA; 20mM Phosphate Buffer Na; 100% D2O95% H2O/5% D2O50mM NaCl6.5ambient283
3DQF-COSY2.0mM RNA Buffer Na; 95% H2O, 5% D2O; 2.0mM RNA; 20mM Phosphate Buffer Na; 100% D2O95% H2O/5% D2O50mM NaCl6.5ambient283
42.0mM RNA Buffer Na; 95% H2O, 5% D2O; 2.0mM RNA; 20mM Phosphate Buffer Na; 100% D2O95% H2O/5% D2O50mM NaCl6.5ambient283
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerDRX500
2BrukerDRX600
NMR Refinement
MethodDetailsSoftware
simulated annealingThe structure is based on a total of 179 restraints, 127 are NOE-derived distance constraints, 34 dihedral angle restraints, 18 distance restraints from hydrogen bonds.Discover
NMR Ensemble Information
Conformer Selection Criteriastructures with the lowest energy
Conformers Calculated Total Number100
Conformers Submitted Total Number13
Representative Model1 (minimized average structure)
Additional NMR Experimental Information
DetailsThis structure was determined using standard 2D homonuclear techniques.
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1structure solutionDiscover97.0
2collectionXwinNMR2.6
3data analysisFelix97.0
4refinementDiscover97.0