Experiment: 1S34

Solution structure of residues 907-929 from Rous Sarcoma Virus

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1 mM 23 mer RNA (NRS23)	>99% D2O	25mM NaCl, 10 mM Sodium Phosphate	6.5	ambient	298
2	3D_13C-separated_NOESY	1 mM 23 mer RNA (NRS23)	>99% D2O	25mM NaCl, 10 mM Sodium Phosphate	6.5	ambient	298
3	DQF-COSY	1 mM 23 mer RNA (NRS23)	>99% D2O	25mM NaCl, 10 mM Sodium Phosphate	6.5	ambient	298
4	HNN-COSY	1 mM 23 mer RNA (NRS23)	>99% D2O	25mM NaCl, 10 mM Sodium Phosphate	6.5	ambient	298
5	2D NOESY	1 mM NRS23	90% H2O/10% D2O	25mM NaCl, 10 mM Sodium Phosphate	6.5	ambient	288
6	HCP	1 mM 23 mer RNA (NRS23)	>99% D2O	25mM NaCl, 10 mM Sodium Phosphate	6.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500
2	Varian	INOVA	500
3	Varian	INOVA	600
4	Varian	INOVA	800

NMR Refinement
Method	Details	Software
Simulated annealing. Refinement using torsion angle dynamics and the DELPHIC database	DELPHIC torsion angle potential was used for the whole molecule. The base position potential was excluded for residues 913, and 917 to 920. Protocol from Clore and Kuszewski (J Am Chem Soc. 2003. 125(6):1518-25)	VNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	15
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	RDC restraints were obtained for the base one bond H-C and H-N using HSQC experiments. RDC restraints for the ribose were obtained from measurements on an Relay HCCH-COSY (Vallurupalli and Moore, J Biomol NMR. 2002. 24(1):63-6). Anisotropic conditions were ~20 mg/ml pf1 phage.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	6.1	varian
2	processing	NMRPipe	4.1	F. Delaglio, S. Grzesiek, G. Vuister, G. Zhu, J. Pfeifer, and A. Bax
3	data analysis	NMRDraw	4.1	Delaglio, F.
4	data analysis	NMRView	5.0.4	Johnson and Blevins
5	structure solution	X-PLOR	NIH 2.0.6	C.D. Schwieters, J.J. Kuszewski, N. Tjandra, and G.M. Clore
6	refinement	X-PLOR	NIH 2.0.6	C.D. Schwieters, J.J. Kuszewski, N. Tjandra, and G.M. Clore