SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample Contents2.0 mM RNA hairpin, pH6.3, 10 mM NaCl, 90% H2O, 10% D2O
Solvent90% H2O/10% D2O
Ionic Strength10mM
pH6.3
Pressure1
Temperature (K)274
Experiment(s):2D NOESY
Sample Contents2.0 mM RNA hairpin, pH6.3, 10 mM NaCl, 99.99% D2o
Solvent99.99% D2o
Ionic Strength10mM
pH6.3
Pressure1
Temperature (K)293
Experiment(s):2D NOESY
Sample Contents1.0 mM 13C/15N labeled RNA hairpin, pH6.3, 10 mM NaCl, 99.99% D2o
Solvent99.99% D2o
Ionic Strength10mM
pH6.3
Pressure1
Temperature (K)293
Experiment(s):3D_13C-separated_NOESY
Spectrometer Information
Manufacturer Model Field Strength
Bruker AMX 500.0
Bruker DRX 600.0
Bruker DRX 500.0
NMR Refinement
Method distance geometry simulated annealing
Details The structures are based on a total of 341 restraints, 261 are NOE-derived distance constraints, 54 dihedral angle restraints. Additional 26 distance restraints from hydrogen bond are used in the stem region.
NMR Ensemble Information
Conformer Selection Criteria structures with the lowest energy
Conformers Calculated Total Number 100
Conformers Submitted Total Number 20
Representative Model Choice Rationale
1 this is the lowest energy structure.
Computation: NMR Software
# Classification Software Name Author
1 collection version: 2.6 XWINNMR Bruker
2 data analysis version: 2000 FELIX MSI
3 refinement version: 3.1 X-PLOR Brunger