2KQ3

Solution structure of SNase140

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
2	3D HNCA	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
3	3D HNCACB	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
4	3D HNCO	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
5	3D CBCA(CO)NH	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
6	3D C(CO)NH	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
7	3D HBHA(CO)NH	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
8	3D HCCH-TOCSY	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
9	3D HCCH-COSY	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
10	3D 1H-15N TOCSY	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
11	3D 1H-15N NOESY	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300
12	3D 1H-13C NOESY	50mM [U-2H] sodium acetate-1, 250mM potassium chloride-2, 1mM EDTA-3, 0.02% sodium azide-4, 0.2mM DSS-5	90% H2O/10% D2O	250	5.0	ambient	300

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600

NMR Refinement
Method	Details	Software
molecular dynamics, simulated annealing		XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR		Bruker Biospin
2	processing	Felix		Accelrys Software Inc.
3	peak picking	Felix		Accelrys Software Inc.
4	chemical shift assignment	Felix		Accelrys Software Inc.
5	data analysis	Felix		Accelrys Software Inc.
6	structure solution	CNS		Brunger, Adams, Clore, Gros, Nilges and Read
7	refinement	CNS		Brunger, Adams, Clore, Gros, Nilges and Read