1NAJ

High resolution NMR Structure Of DNA Dodecamer Determined In Aqueous Dilute Liquid Crystalline Phase

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	H-31P-HSQC, HP-ctNOESY-DIF, COSY	0.5 MM unlabeled DUPLEX DNA, 40MM SODIUM PHOSPHATE, PH 7.0	100% D2O	40mM	7.0	1 atm	308
2	COSY,2D NOESY,13C-HSQC-J-MODULATED,13C-HSQC-F1-COUPLED, 15N-HSQC-F1-COUPLED	0.5 MM U-13C/15N DUPLEX DNA, 40MM SODIUM PHOSPHATE, PH 7.0	90% H2O/10% D2O	40mM	7.0	1 atm	308

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600
2	Bruker	AVANCE	800

NMR Refinement
Method	Details	Software
SIMULATED ANNEALING, MOLECULAR DYNAMICS	THE STRUCTURE IS BASED ON A TOTAL OF 162 NOE, 32 HYDROGEN BOND, AND 24 DIHEDRAL RESTRAINTS; AS WELL AS 262 CH AND 16 NH ONE-BOND DIPOLAR COUPLING RESTRAINTS, 200 APPROXIMATE PROTON-PROTON DIPOLAR COUPLINGS, 300 quantitative proton-proton dipolar restraints, 22 31P-1H dipolar couplings, and 22 31P chemical shift anisotropy restraints. THE COORDINATE OF THE ALIGNMENT TENSOR IS DEFINED BY molecule 500 and 501.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	20
Conformers Submitted Total Number	5
Representative Model	3 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	data analysis	NMRPipe	1.7 REV 1999.039.11.31	Delaglio, Frank
2	collection	XwinNMR	VERSION 2.4 and 2.6	Bruker
3	refinement	X-PLOR	3.841	BRUNGER
4	data analysis	CosyView		Delaglio, Frank

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 R01GM157729.