1C34

SOLUTION STRUCTURE OF A QUADRUPLEX FORMING DNA AND ITS INTERMIDIATE

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	140 MM NACL, 1.4 MM KCL, 20 MM TRISD11 PH=7.0		140 mM NACL,	7.0	1 atm	288
2	PE-COSY	140 MM NACL, 1.4 MM KCL, 20 MM TRISD11 PH=7.0		140 mM NACL,	7.0	1 atm	288
3	ROESY	140 MM NACL, 1.4 MM KCL, 20 MM TRISD11 PH=7.0		140 mM NACL,	7.0	1 atm	288
4	BASD-TOCSY	140 MM NACL, 1.4 MM KCL, 20 MM TRISD11 PH=7.0		140 mM NACL,	7.0	1 atm	288
5	2D NOESY	140 MM NACL, 1.4 MM KCL, 20 MM TRISD11 PH=7.0		140 mM NACL,	7.0	1 atm	288

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500
2	Varian	UNITYPLUS	400

NMR Refinement
Method	Details	Software
STRUCTURE REFINEMENT OF THE DNA WAS PREFORMED USING COMPLETE RELAXATION MATRIX, RESTRAINED MOLECULAR DYNAMICS.		VNMR

NMR Ensemble Information
Conformer Selection Criteria	80 TO 100PS STRUCTURES FROM DYNAMICS
Conformers Calculated Total Number	11
Conformers Submitted Total Number	11

Additional NMR Experimental Information
Details	THIS STRUCTURE IS THE INTERMEDIATE FORM OF THE 15MER QUADRUPLEX WITH ONLY 1 POTASSSIUM PER DNA MOLECULE.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	VNMR	6.1B	VARIAN
2	processing	VNMR	6.1B	VARIAN
3	processing	Felix	970	MSI
4	refinement	Felix	970	MSI
5	structure solution	X-PLOR	3.1	BRUNGER
6	refinement	X-PLOR	3.1	BRUNGER