1P94

NMR Structure of ParG symmetric dimer

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	1 mM ParG U-15N,13C; 100 mM NaCl, 50 mM phosphate buffer, 1 mM DTT; 90% H2O, 10% D2O	90% H2O/10% D2O	150 mM	5.5	ambient	293
2	3D_15N-separated_NOESY	1 mM ParG U-15N; 100 mM NaCl, 50 mM phosphate buffer, 1 mM DTT; 90% H2O, 10% D2O	90% H2O/10% D2O	150 mM	5.5	ambient	293
3	2D NOESY	1 mM ParG U-15N; 100 mM NaCl, 50 mM phosphate buffer, 1 mM DTT; 100% D2O	100% D2O	150 mM	5.5	ambient	293

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	600
2	Bruker	DRX	800
3	Varian	INOVA	800

NMR Refinement
Method	Details	Software
ARIA protocol (Nilges, M. et al., (1997) J. Mol. Biol. 269, 408-422) was used to deal with ambiguous distance restraints and for some NOE assignments.	The ParG structure is based on 2230 ambiguous NOE restraints, 82 hydrogen bond restraints, and 144 CSI-based dihedral angle restraints. N-terminal region of ParG (1-32) is unstructured. The C-terminal region (33-76) is structured.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy,target function
Conformers Calculated Total Number	20
Conformers Submitted Total Number	11
Representative Model	1 (minimized average structure)

Additional NMR Experimental Information
Details	BEST REPRESENTATIVE CONFORMER (MODEL 1) IN THIS ENSEMBLE WAS OBTAINED BY ENERGY MINIMIZATION OF THE AVERAGE STRUCTURE, CALCULATED FOR MODELS 2-11

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe		Delaglio et al.
2	data analysis	NMRView	5.01	Johnson and Blevins
3	structure solution	ARIA	1.1	Nilges et al.
4	structure solution	CNS	1.0	Brunger et al.
5	refinement	CNS	1.0	Brunger et al.