1EKW

NMR STRUCTURE OF A DNA THREE-WAY JUNCTION

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2 mM DNA, 0.5mM EDTA, 100 mM Sodium phosphate, 10 mM MgCl2, 100mM NaCl	100% D2O	100 mM	6.8	1 atm	301
2	3D NOESY-NOESY	2 mM DNA, 0.5mM EDTA, 100 mM Sodium phosphate, 10 mM MgCl2, 100mM NaCl	100% D2O	100 mM	6.8	1 atm	301

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITYPLUS	600
2	Varian	UNITYPLUS	750

NMR Refinement
Method	Details	Software
Complete relaxation matrix Molecular Dynamics	Particle Mesh Ewald Methods were used.	MORASS

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	iterative matrix relaxation	MORASS	2.5	Meadows, R., Post, C.B., Luxon, B.A., & Gorenstein, D.G.

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.