SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample Contents1 mM sNRE 2-5 mM Na+ added for pH
Solvent10% D2O 90% H2O, pH=6.0
Ionic Strengthlow (2-5 mM added Na+)
pH6
Pressureambient
Temperature (K)278
Experiment(s):2D NOESY
Sample Contents1 mM sNRE 2-5 mM Na+ added for pH
Solvent99.99% D2O
Ionic Strengthlow (2-5 mM added Na+)
pH6
Pressureambient
Temperature (K)303
Experiment(s):2D NOESY, DQF-COSY
Sample Contents0.5 mM U-13C/15N sNRE 2-5 mM Na+ added for pH
Solvent10 D2O 90% H2O
Ionic Strengthlow (2-5 mM added Na+)
pH6
Pressureambient
Temperature (K)278
Experiment(s):H-N HMQC
Sample Contents0.5 mM U-13C/15N sNRE 2-5 mM Na+ added for pH
Solvent99.99% D2O
Ionic Strengthlow (2-5 mM added Na+)
pH6
Pressureambient
Temperature (K)303
Experiment(s):3D_13C-separated_NOESY, HCCH TOCSY
Spectrometer Information
Manufacturer Model Field Strength
Bruker DRX 500.0
Bruker DRX 600.0
NMR Refinement
Method Simulated annealing starting from randomized templates. Base planarity restraints were added.
NMR Ensemble Information
Conformer Selection Criteria all calculated structures submitted
Conformers Calculated Total Number 18
Conformers Submitted Total Number 18
Representative Model Choice Rationale
1 lowest energy
Additional NMR Experimental Information
1 RNA was also assigned using U/C, A, and, G specifically labeled samples. Dieckmann, T., Feigon, J. J. Biomol. NMR 9 (1997) 259-272.
Computation: NMR Software
# Classification Software Name Author
1 collection version: 2.6 XWINNMR Bruker
2 processing version: 2.6 XWINNMR Bruker
3 data analysis version: 97.0 FELIX Molecular Simulations Inc.
4 structure solution version: 3.8 X-PLOR Brunger & Nilges
5 refinement version: 3.8 X-PLOR Brunger & Nilges