2MIW

Nuclear magnetic resonance studies of N2-guanine adducts derived from the tumorigen dibenzo[a,l]pyrene in DNA: Impact of adduct stereochemistry, size, and local DNA structure on solution conformations

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	1.5 mM DB[a,l]P covalently bound to 11mer DNA duplex, 100 mM NaCl, 10 mM Na2HPO4, 25 mM DSS	100% D2O		6.8
2	2D 1H-1H TOCSY	1.5 mM DB[a,l]P covalently bound to 11mer DNA duplex, 100 mM NaCl, 10 mM Na2HPO4, 25 mM DSS	100% D2O		6.8
3	2D 1H-1H NOESY	1.5 mM DB[a,l]P covalently bound to 11mer DNA duplex, 100 mM NaCl, 10 mM Na2HPO4, 25 mM DSS	90% H2O/10% D2O		6.8

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500

NMR Refinement
Method	Details	Software
molecular dynamics		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	1000
Conformers Submitted Total Number	1
Representative Model	1 (fewest violations)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	processing	TopSpin		Bruker Biospin
3	data analysis	Sparky		Goddard
4	chemical shift assignment	Sparky		Goddard
5	refinement	Amber		Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, ... and Kollman