2K11

Solution structure of human pancreatic ribonuclease

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H COSY	1.2 mM Human pancreatic ribonuclease	90% H2O/10% D2O		4.7	ambient	298
2	2D 1H-1H TOCSY	1.2 mM Human pancreatic ribonuclease	90% H2O/10% D2O		4.7	ambient	298
3	2D 1H-1H NOESY	1.2 mM Human pancreatic ribonuclease	90% H2O/10% D2O		4.7	ambient	298
4	2D 1H-1H COSY	1.2 mM Human pancreatic ribonuclease	100% D2O		4.7	ambient	298
5	2D 1H-1H TOCSY	1.2 mM Human pancreatic ribonuclease	100% D2O		4.7	ambient	298
6	2D 1H-1H NOESY	1.2 mM Human pancreatic ribonuclease	100% D2O		4.7	ambient	298
7	3D 1H-15N TOCSY	1.2 mM [U-15N] Human pancreatic ribonuclease	90% H2O/10% D2O		4.7	ambient	298
8	3D 1H-15N NOESY	1.2 mM [U-15N] Human pancreatic ribonuclease	90% H2O/10% D2O		4.7	ambient	298

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

NMR Refinement
Method	Details	Software
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	chemical shift assignment	XEASY		Bartels, C. et al.
3	refinement	CYANA		Guntert, P. et al.