Structure of the histone mRNA hairpin required for cell cycle regulation of histone gene expression

SOLUTION NMR Experimental Data

Experimental Details
Sample Conditions
Sample Contents1 mM U-15N/13C 24mer RNA
Solvent100% D2O
Ionic Strength10 mM sodium phosphate, 0.1 mM EDTA
Temperature (K)298
Experiment(s):3D_13C_HMQC-NOESY, 3D_HCCH-E.COSY, 3D_HCC-TOCSY-CCH-E.COSY, spin_echo_difference_CT-HSQC
Sample Contents1 mM U-15N 24mer RNA
Solvent10% D2O / 90% H2O
Ionic Strength10 mM sodium phosphate, 0.1 mM EDTA
Temperature (K)285
Spectrometer Information
Manufacturer Model Field Strength
Bruker DRX 800.0
Bruker DRX 600.0
NMR Refinement
Method Molecular Dynamics/Simulated Annealing
Details The structures are calculated with 451 distance restraints, 23 hydrogen bond restraints and 158 torsion angle restraints. The structures were calculated in ARIA/CNS and refined using AMBER.
NMR Ensemble Information
Conformer Selection Criteria back calculated data agree with experimental NOESY spectrum, structures with acceptable covalent geometry, structures with the least restraint violations, structures with the lowest energy
Conformers Calculated Total Number 100
Conformers Submitted Total Number 15
Representative Model Choice Rationale
1 lowest energy
Additional NMR Experimental Information
1 The structure was determined using standard heteronuclear triple resonance experiments
Computation: NMR Software
# Classification Software Name Author
1 refinement AMBER 6.0 Case et al.
2 structure solution ARIA/CNS 1.0 Linge, Nilges
3 data analysis XEASY 1.2 Bartels et al.
4 processing NMRPipe 1.8 Delaglio et al.
5 collection XWINNMR 2.6 Bruker, Germany