1Q27

NMR Solution Structure of DR0079: An hypothetical Nudix protein from D. radiodurans

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	~2 mM DR0079; U-15N, 13C; 100 mM KCl, 20 mM potassium phosphate, 2 mM DTT, pH 7.1	90% H2O/10% D2O	100 mM KCl; 20 mM Potassium phosphate	7.1	ambient	298
2	3D_13C-separated_NOESY	~2 mM DR0079; U-15N, 13C; 100 mM KCl, 20 mM potassium phosphate, 2 mM DTT, pH 7.1	90% H2O/10% D2O	100 mM KCl; 20 mM Potassium phosphate	7.1	ambient	298
3	4D_13C-separated_NOESY	~2 mM DR0079; U-15N, 13C; 100 mM KCl, 20 mM potassium phosphate, 2 mM DTT, pH 7.1	90% H2O/10% D2O	100 mM KCl; 20 mM Potassium phosphate	7.1	ambient	298
4	IPAP-HSQC experiements for RDCs	~2 mM DR0079; U-15N, 13C; 100 mM KCl, 20 mM potassium phosphate, 2 mM DTT, pH 7.1, pf1 filamentous phage	90% H2O/10% D2O	100 mM KCl; 20 mM Potassium phosphate	7.1	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	750
2	Varian	INOVA	800
3	Varian	INOVA	600

NMR Refinement
Method	Details	Software
torsion angle dynamics	DYANA used for initial refinements. CNS used for final structure calculations with RDCs.	DYANA

NMR Ensemble Information
Conformer Selection Criteria	ten best structures, in terms of total and NOE energies
Conformers Calculated Total Number	225
Conformers Submitted Total Number	10
Representative Model	6 (n/a)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	DYANA	1.5	Guentert
2	structure solution	CNS	1.1	Brunger
3	processing	Felix	97	MSI
4	refinement	CNS	1.1	Brunger