1HZ0

NMR STRUCTURE OF THE 2-AMINO-1-METHYL-6-PHENYLIMIDAZO[4,5-B]PYRIDINE (PHIP) C8-DEOXYGUANOSINE ADDUCT IN DUPLEX DNA

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	9.1 mg of [PhIP]dG.dC 11mer duplex in 600 ul of 10 mM Na2PO4 buffer	100% D2O	0.1 M NaCl	7.00	ambient	298
2	2D NOESY	9.1 mg of [PhIP]dG.dC 11mer duplex in 600 ul of 10 mM Na2PO4 buffer	100% D2O	0.1 M NaCl	7.00	ambient	293
3	2D NOESY	9.1 mg of [PhIP]dG.dC 11mer duplex in 600 ul of 10 mM Na2PO4 buffer	90% H2O/10% D2O	0.1 M NaCl	7.00	ambient	274

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

NMR Refinement
Method	Details	Software
restrainted torsion angle minimizations	A total of 266 NOE-derived distance constraints were used in the calculations	VNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	48
Conformers Submitted Total Number	6
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear techniques

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	6.0	Varian
2	data analysis	Felix	97	MSI
3	structure solution	DUPLEX	none	Hingerty and Broyde
4	refinement	DUPLEX	none	Hingerty and Broyde

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.