2HLI

Solution structure of Crotonaldehyde-Derived N2-[3-Oxo-1(S)-methyl-propyl]-dG DNA Adduct in the 5'-CpG-3' Sequence

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1 mM in 0.25 mL; 10 mM Sodium phosphate buffer; 0.1 M NaCl; 50 uMNa2EDTA	99.996% D2O	0.1 M NaCl	9.3	1 atm	303
2	DQF-COSY
3	E-COSY

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	800
2	Bruker	AVANCE	600
3	Bruker	AVANCE	500

NMR Refinement
Method	Details	Software
distance geometry simulated annealing molecular dynamics matrix relaxation and torsion angle	308 distance restraints, 90 sugar pucker restraints, 52 H-bonding restraints	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	back calculated data agree with experimental NOESY spectrum
Conformers Calculated Total Number	10
Conformers Submitted Total Number	1
Representative Model	10 (minimized average structure)

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	3.5	Bruker
2	processing	NMRPipe	2.3	Delaglio F et al.
3	data analysis	Felix	2000	Accelrys, Inc.
4	iterative matrix relaxation	MARDIGRAS	5.2.1	Keepers, JW et al.
5	refinement	Amber	8.0	Case et al
6	data analysis	CORMA	5.2	Keepers JW et al.