Experiment: 1P5M

Solution Structure of HCV IRES Domain IIa

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D S-NOESY	1-2mM HCV IRES domain IIa RNA 10mM phosphate buffer 100mM sodium chloride 5mM magnesium chloride	96% D2O, 4% H2O	100mM NaCl, 5mM MgCl2	6.40	ambient	298
2	2D NOESY	1-2mM HCV IRES domain IIa RNA 10mM phosphate buffer 100mM sodium chloride 5mM magnesium chloride	100% D2O	100mM NaCl, 5mM MgCl2	6.40	ambient	298
3	DQF-COSY	1-2mM HCV IRES domain IIa RNA 10mM phosphate buffer 100mM sodium chloride 5mM magnesium chloride	100% D2O	100mM NaCl, 5mM MgCl2	6.40	ambient	298
4	2D HP-COSY	1-2mM HCV IRES domain IIa RNA 10mM phosphate buffer 100mM sodium chloride 5mM magnesium chloride	100% D2O	100mM NaCl, 5mM MgCl2	6.40	ambient	298
5	3D_13C-separated_NOESY	1mM HCV IRES domain IIa RNA U-15N,13C 10mM phosphate buffer 100mM sodium chloride 5mM magnesium chloride	100% D2O	100mM NaCl, 5mM MgCl2	6.40	ambient	303
6	3D HCP	1mM HCV IRES domain IIa RNA U-15N,13C 10mM phosphate buffer 100mM sodium chloride 5mM magnesium chloride	100% D2O	100mM NaCl, 5mM MgCl2	6.40	ambient	303
7	3D HMQC TOCSY	1mM HCV IRES domain IIa RNA U-15N,13C 10mM phosphate buffer 100mM sodium chloride 5mM magnesium chloride	100% D2O	100mM NaCl, 5mM MgCl2	6.40	ambient	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500
2	Varian	INOVA	800

NMR Refinement
Method	Details	Software
see reference above	see reference above	VNMR

NMR Ensemble Information
Conformer Selection Criteria	lowest restraint violation and total energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	22
Representative Model	1 (closest to the average)

Additional NMR Experimental Information
Details	The structure was solved using triple resonance, multidimensional NMR spectroscopy and TROSY-type experiments to measure residual dipolar couplings

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	VNMR	6.1C	Varian
2	data analysis	Sparky	3	Goddard, Kneller
3	refinement	X-PLOR	3.1	Brunger
4	refinement	CNS	1.1	Brunger
5	refinement	PALES	1	Zweckstetter, Bax