2KYS

NMR Structure of the SARS Coronavirus Nonstructural Protein Nsp7 in Solution at pH 6.5

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D 15N-resolved [1H,1H]-NOESY	2 mM [U-98% 13C; U-98% 15N] nsp7, 50 mM sodium phosphate, 150 mM sodium chloride, 10 mM DTT, 3 mM sodium azide	93% H2O/7% D2O	0.253	6.5	AMBIENT	298
2	3D 13C-resolved [1H,1H]-NOESY (aliphatic carbons)	2 mM [U-98% 13C; U-98% 15N] nsp7, 50 mM sodium phosphate, 150 mM sodium chloride, 10 mM DTT, 3 mM sodium azide	93% H2O/7% D2O	0.253	6.5	AMBIENT	298
3	3D 13C-resolved [1H,1H]-NOESY (aromatic carbons)	2 mM [U-98% 13C; U-98% 15N] nsp7, 50 mM sodium phosphate, 150 mM sodium chloride, 10 mM DTT, 3 mM sodium azide	93% H2O/7% D2O	0.253	6.5	AMBIENT	298
4	2D [15N,1H]-HSQC	2 mM [U-98% 13C; U-98% 15N] nsp7, 50 mM sodium phosphate, 150 mM sodium chloride, 10 mM DTT, 3 mM sodium azide	93% H2O/7% D2O	0.253	6.5	AMBIENT	298
5	3D HNCA	2 mM [U-98% 13C; U-98% 15N] nsp7, 50 mM sodium phosphate, 150 mM sodium chloride, 10 mM DTT, 3 mM sodium azide	93% H2O/7% D2O	0.253	6.5	AMBIENT	298
6	3D HNCACB	2 mM [U-98% 13C; U-98% 15N] nsp7, 50 mM sodium phosphate, 150 mM sodium chloride, 10 mM DTT, 3 mM sodium azide	93% H2O/7% D2O	0.253	6.5	AMBIENT	298
7	3D CBCA(CO)NH	2 mM [U-98% 13C; U-98% 15N] nsp7, 50 mM sodium phosphate, 150 mM sodium chloride, 10 mM DTT, 3 mM sodium azide	93% H2O/7% D2O	0.253	6.5	AMBIENT	298
8	3D HCCH-TOCSY	2 mM [U-98% 13C; U-98% 15N] nsp7, 50 mM sodium phosphate, 150 mM sodium chloride, 10 mM DTT, 3 mM sodium azide	93% H2O/7% D2O	0.253	6.5	AMBIENT	298
9	2D [13C,1H]-HSQC	2 mM [U-98% 13C; U-98% 15N] nsp7, 50 mM sodium phosphate, 150 mM sodium chloride, 10 mM DTT, 3 mM sodium azide	93% H2O/7% D2O	0.253	6.5	AMBIENT	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	800

NMR Refinement
Method	Details	Software
torsion angle dynamics		UNIO

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	80
Conformers Submitted Total Number	20
Representative Model	1 (lowest rmsd to mean coordinates of ensemble)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	UNIO	1.0.4	Torsten Herrmann
2	structure solution	CYANA	3.0	Guntert, Mumenthaler and Wuthrich
3	structure solution	ATNOS	2.2	Torsten Herrmann, Peter Guntert, Kurt Wuthrich
4	structure solution	CANDID	2.2	Torsten Herrmann, Peter Guntert, Kurt Wuthrich
5	refinement	OPAL		Luginbuhl, Guntert, Billeter and Wuthrich
6	collection	TopSpin		Bruker Biospin
7	data analysis	TopSpin		Bruker Biospin
8	data analysis	CARA		Keller and Wuthrich