1S88

NMR structure of a DNA duplex with two INA nucleotides inserted opposite each other, dCTCAACXCAAGCT:dAGCTTGXGTTGAG

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1.9mM DNA, 10mM sodium phosphate buffer, 100mM NaCl, 0.05mM EDTA	100% D2O	100 mM	7.0	1 atm	298
2	2D TOCSY	1.9mM DNA, 10mM sodium phosphate buffer, 100mM NaCl, 0.05mM EDTA	100% D2O	100 mM	7.0	1 atm	298
3	DQF-COSY	1.9mM DNA, 10mM sodium phosphate buffer, 100mM NaCl, 0.05mM EDTA	100% D2O	100 mM	7.0	1 atm	298
4	2D NOESY	1.9mM DNA, 10mM sodium phosphate buffer, 100mM NaCl, 0.05mM EDTA	90% H2O 10% D20	100 mM	7.0	1 atm	298

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

NMR Refinement
Method	Details	Software
restraint molecular dynamics		Amber

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	40
Conformers Submitted Total Number	20

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	iterative matrix relaxation	Amber	6	Case
2	processing	Felix	98	MSI, San Diego, CA

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.