1JRW

Solution Structure of dAATAA DNA Bulge

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D_NOESY	1.6mm in duplex; 10mm phosphate buffer; 100mm NaCl; 0.05mm EDTA; 100% D2O	100% D2O	100mm Na+	7	ambient	300
2	E-COSY	1.6mm in duplex; 10mm phosphate buffer; 100mm NaCl; 0.05mm EDTA; 100% D2O	100% D2O	100mm Na+	7	ambient	300
3	31P-1H_correlated	1.6mm in duplex; 100mm NaCl; 0.05mm EDTA; 100% D2O	100% D2O	100mm Na+	7	ambient	300

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500
2	Varian	INOVA	600
3	Varian	INOVA	750

NMR Refinement
Method	Details	Software
matrix relaxation; torsion angle dynamics; energy minimization	the structures are based on a total of 906 restraints, 645 are NOE-derived distance constraints, 235 dihedral angle restraints, 26 distance restraints from hydrogen bonds.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number
Conformers Submitted Total Number	1
Representative Model	1 (minimized average structure)

Additional NMR Experimental Information
Details	THE FINAL AVERAGE STRUCTURE WAS OBTAINED BY COORDINATE AVERAGING OF THE FINAL ENSEMBLE OF STRUCTURES, FOLLOWED BY RESTRAINED ENERGY MINIMIZATION. This structure was determined using standard 2D homonuclear and heteronuclear techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	3	Delaglio, F., et al.
2	iterative matrix relaxation	MARDIGRAS	3.2	Borgias, B.A., James, T.L.
3	structure solution	DYANA	1.5	Guentert, P., Mumenthaler, C., Wuetrich, K.
4	refinement	Amber	5.0	WEINER, S.J., KOLLMAN, P.A., NGUYEN, D.T., CASE, D.A.
5	data analysis	Amber	5.0	WEINER, S.J., KOLLMAN, P.A., NGUYEN, D.T., CASE, D.A.

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.