Experiment: 1XCZ

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	COSY, DQF-COSY, COSY45, TOCSY, NOESY, [1H-31P]HETCOR	1.2 mM sample, 50 mM phosphate buffer, 50 mM NaCl, 1 mM EDTA, 99.96% D2O	100% D2O		6.9	ambient	290
2	2D NOESY	1.2 mM sample, 50 mM phosphate buffer, 50 mM NaCl, 1 mM EDTA, 90% H2O-10% D2O	90% H2O/10% D2O		6.9	ambient	277

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500
2	Varian	INOVA	600

NMR Refinement
Method	Details	Software
molecular dynamics	The structures are based on a total of 400 distances between non-exchangeable protons, 26 distance restraints enforcing WC base pairs and 96 backbone dihedral restraints.	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	converging structures (<1.5A) and the least restraints violations
Conformers Calculated Total Number	20
Conformers Submitted Total Number	9
Representative Model	1 (closest to the average)

Additional NMR Experimental Information
Details	Several NOESY spectra recorded using different mixing times.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	3.85	Brunger
2	processing	Felix	98	Accelrys
3	data analysis	Felix	98	Accelrys
4	data analysis	Curves	5.1	Lavery AND Sklenar
5	collection	VNMR	6.1	Varian

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.