1DL4

THE SOLUTION STRUCTURE OF A BAY-REGION 1S-BENZ[A]ANTHRACENE OXIDE ADDUCT AT THE N6 POSITION OF ADENINE OF AN OLIGODEOXYNUCLEOTIDE CONTAINING THE HUMAN N-RAS CODON 61 SEQUENCE

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1.7 MM OLIGODEOXYNUCLEOTIDE; 10 MM PHOSPHATE BUFFER; 0.05 MM EDTA; 0.1 M NACL		0.1 M NACL	7.0	1 atm	278
2	2D NOESY	1.7 MM OLIGODEOXYNUCLEOTIDE; 10 MM PHOSPHATE BUFFER; 0.05 MM EDTA; 0.1 M NACL		0.1 M NACL	7.0	1 atm	283
3	2D NOESY	1.7 MM OLIGODEOXYNUCLEOTIDE; 10 MM PHOSPHATE BUFFER; 0.05 MM EDTA; 0.1 M NACL		0.1 M NACL	7.0	1 atm	298
4	2D ROESY	1.7 MM OLIGODEOXYNUCLEOTIDE; 10 MM PHOSPHATE BUFFER; 0.05 MM EDTA; 0.1 M NACL		0.1 M NACL	7.0	1 atm	298
5	DQF-COSY	1.7 MM OLIGODEOXYNUCLEOTIDE; 10 MM PHOSPHATE BUFFER; 0.05 MM EDTA; 0.1 M NACL		0.1 M NACL	7.0	1 atm	283

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	750
2	Bruker	DRX	500

NMR Refinement
Method	Details	Software
NOE-RESTRAINTED MOLECULAR DYNAMICS /SIMULATED ANNEALING	THE STRUCTURE IS BASED ON A TOTAL OF 477 NOE-DERIVED DISTANCE CONSTRAINTS, 80 EMPIRICAL SUGAR PUCKER RESTRAINTS, 32 BACKBONE ANGLE DIHEDRAL RESTRAINTS, AND 18 EMPIRICAL PLANARITY RESTRAINTS.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	7
Conformers Submitted Total Number	1
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	XwinNMR	2.0	BRUKER
2	structure solution	X-PLOR	3.851	A.BRUNGER
3	processing	Felix	97.0	BIOSYM TECHNOLOGIES
4	refinement	CORMA	5.2	BORGIAS, B.A., THOMAS, P.D., LI, H., KUMAR, A., AND TONELLI, M.
5	iterative matrix relaxation	MARDIGRAS	3.0	BORGIAS, B.A., THOMAS, P.D., LI, H., KUMAR, A., AND TONELLI, M.