1GCC

SOLUTION NMR STRUCTURE OF THE COMPLEX OF GCC-BOX BINDING DOMAIN OF ATERF1 AND GCC-BOX DNA, MINIMIZED AVERAGE STRUCTURE

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	NOESY	POTASIUM PHOSPHATE		90 mM	6.0	1 ATMOSPHERE	298
2	TOCSY	POTASIUM PHOSPHATE		90 mM	6.0	1 ATMOSPHERE	298
3	DQF-COSY	POTASIUM PHOSPHATE		90 mM	6.0	1 ATMOSPHERE	298
4	1H-15N HSQC	POTASIUM PHOSPHATE		90 mM	6.0	1 ATMOSPHERE	298
5	3D 1H-15N NOESY-HMQC	POTASIUM PHOSPHATE		90 mM	6.0	1 ATMOSPHERE	298
6	3D 1H-15N TOCSY-HMQC	POTASIUM PHOSPHATE		90 mM	6.0	1 ATMOSPHERE	298
7	13C	POTASIUM PHOSPHATE		90 mM	6.0	1 ATMOSPHERE	298
8	15N-FILTERED NOESY	POTASIUM PHOSPHATE		90 mM	6.0	1 ATMOSPHERE	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX750	750
2	Bruker	DMX500	500

NMR Refinement
Method	Details	Software
SIMULATED ANNEALING PROTOCOL IN X-PLOR 3.1 WAS CARRIED OUT TO OBTAIN 25 STRUCTURES. MINIMIZED MEAN STRUCTURE OF THEM WAS FURTHER REVISED BY A 300 PS RESTRAINED MOLECULAR DYNAMICAL CALCULATION IN THE PRESENCE OF APPROXIMATELY 5000 TIP3P WATER MOLSCULES, USING CORNELL FORCE FIELD IN AMBER 4.1. THE MEAN CO-ORDINATE OF 200 STRUCTURES OBTAINED AFTER THE EQUILIBRIUM (100 PS) WAS ENERGY-MINIMIZED.	SEE REMARK 210 OTHER PROGRAMS USED: AMBER 4.1 AUTHORS: PEARLMAN,CASE,CALDWELL,ROSS,CHEATHAM III, FERGUSON,SEIBEL,SINGH,WEINER,KOLLMAN	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number	1
Conformers Submitted Total Number	1

Additional NMR Experimental Information

Details

SIGNALS DUE TO PROTEINS WERE OBTAINED BY NOESY, TOCSY, DQF-COSY FOR UNLABELED SAMPLE AND 1H-15N HSQC, 3D 1H-15N NOESY-HMQC AND 3D 1H-15N TOCSY-HMQC FOR THE SAMPLE WITH 15N-LABELED PROTEIN. SIGNALS DUE TO DNA WERE OBTAINED BY NOESY, TOCSY, AND DQF-COSY FOR UNLABELED SAMPLE AND 13C,15N-FILTERED NOESY FOR SAMPLE WITH 13C, 15N-LABELED PROTEIN. INTERMOLECULAR NOES WERE IDENTIFIED USING NOESY SPECTRA INCLUDING THOSE WITH AND WITHOUT 13C- OR 15N-DECOUPLING FOR SAMPLE WITH 13C,15N-LABELED PROTEIN.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	3.1	BRUNGER
2	structure solution	X-PLOR	3.1
3	structure solution	Amber	4.1