2KX5

Recognition of HIV TAR RNA by peptide mimetic of Tat protein

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H TOCSY	1 mM HIV-1 TAR/KP-Z-41-1	100% D2O	0.01	6.6	ambient	298
2	2D 1H-1H COSY	1 mM [U-98% 13C; U-98% 15N] HIV-1 TAR/KP-Z-41-3	100% D2O	0.01	6.6	ambient	298
3	2D 1H-1H NOESY	1 mM HIV-1 TAR/KP-Z-41-1	100% D2O	0.01	6.6	ambient	298
4	3D HCCH-TOCSY	1 mM [U-98% 13C; U-98% 15N] HIV-1 TAR/KP-Z-41-3	100% D2O	0.01	6.6	ambient	298
5	3D 1H-13C NOESY	1 mM [U-98% 13C; U-98% 15N] HIV-1 TAR/KP-Z-41-3	100% D2O	0.01	6.6	ambient	298
6	2D 1H-1H NOESY	1 mM HIV-1 TAR/KP-Z-41-2	90% H2O/10% D2O	0.01	6.6	ambient	277
7	2D 1H-1H NOESY	1 mM [U-2H] HIV-1 TAR/KP-Z-41-4	100% D2O	0.01	6.6	ambient	298
8	2D F1fF2f NOESY	1 mM [U-98% 13C; U-98% 15N] HIV-1 TAR/KP-Z-41-3	100% D2O	0.01	6.6	ambient	298
9	2D F1fF2f NOESY	1 mM [U-98% 13C; U-98% 15N] HIV-1 TAR/KP-Z-41-5	90% H2O/10% D2O	0.01	6.6	ambient	277
10	2D F1fF2f TOCSY	1 mM [U-98% 13C; U-98% 15N] HIV-1 TAR/KP-Z-41-3	100% D2O	0.01	6.6	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500
2	Bruker	DMX	600

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR_NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations and lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR_NIH		Schwieters, Kuszewski, Tjandra and Clore
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	chemical shift assignment	SPARKY		Goddard
4	peak picking	SPARKY		Goddard
5	refinement	X-PLOR_NIH		Schwieters, Kuszewski, Tjandra and Clore