1RFR

NMR structure of the 30mer stemloop-D of coxsackieviral RNA

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	see below	0.9mM SLD-RNA U-15N,13C; 10mM KH2PO4/K2HPO4, 40mM KCl, 0.2mM EDTA	95% H2O, 5% v/v D2O or 99.99% v/v D2O	10mM KH2PO4/K2HPO4, 40mM KCl, 0.2mM EDTA	6.2	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Varian	INOVA	750

NMR Refinement
Method	Details	Software
distance geometry/simulated annealing, energy minimisation	1001 experimental distances derived from NOE cross peaks, 280 torsion angle constraints describing 258 torsion angles, 52 hydrogen bond constraints	VNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy,target function
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Additional NMR Experimental Information

Details

the structure was determined using heteronuclear 2D and 3D NMR experiments, e.g. 3D HCCH-COSY, RELAY-COSY, TOCSY, H6/H5(C4N)H, C6/C5(C4N)H, H(CCN)H-TOCSY, HCCH-TOCSY, 2D H(N)CO, 2D CPMG-HSQC-NOESY, 2D NOESY, 3D 1H,1H,15N-NOESY-HSQC, 3D 1H,1H,13C-NOESY-HSQC, CLEAN-TOCSY, 31P-SPINECHO-DIFFERENCE-CT-HMQC, HNN-COSY, 2D 1H,13C-HSQC, 2D 1H,15N-HSQC, HCN, H5(C5C4N)H, H8(C8C2)H2, 3D 13C-F1-FILTERED,13C-F3-EDITED-NOESY-HSQC

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	6.1, rev. c	Varian Inc.
2	processing	VNMR	6.1, rev. c	Varian Inc.
3	data analysis	XEASY	1.3.9	Bartels
4	structure solution	FOUND	implemented in CYANA-1.0.6	Guntert
5	structure solution	CYANA	1.0.6	Herrmann
6	refinement	OPAL	2.6	Luginbuhl