1IW4

Solution structure of ascidian trypsin inhibitor

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	NOESY	1.5-2.0mM ascidian trypsin inhibitor; 90% H2O, 10% D2O	90% H2O/10% D2O		3.7	ambient	303
2	DQF-COSY	1.5-2.0mM ascidian trypsin inhibitor; 90% H2O, 10% D2O	90% H2O/10% D2O		3.7	ambient	303
3	E-COSY	1.5-2.0mM ascidian trypsin inhibitor; 90% H2O, 10% D2O	90% H2O/10% D2O		3.7	ambient	303
4	TOCSY	1.5-2.0mM ascidian trypsin inhibitor; 90% H2O, 10% D2O	90% H2O/10% D2O		3.7	ambient	303
5	TOCSY	1.5-2.0mM ascidian trypsin inhibitor; D2O	D2O		3.7	ambient	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500
2	Bruker	DRX	600
3	Bruker	DMX	750
4	JEOL	A	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)

Additional NMR Experimental Information
Details	The structure was determined using standard 2D homonuclear techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.6	Bruker
2	processing	NMRPipe	2.1	Delaglio
3	data analysis	NMRPIPP	4.3.2	Garrett
4	refinement	CNS	1.0	Brunger