1LA4

Solution Structure of SGTx1

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2mM SGTx1; 90% H2O, 10% D2O	90% H2O/10% D2O	0	3.5	ambient	310
2	DQF-COSY	2mM SGTx1; 90% H2O, 10% D2O	90% H2O/10% D2O	0	3.5	ambient	310
3	PE-COSY	2mM SGTx1; 90% H2O, 10% D2O	90% H2O/10% D2O	0	3.5	ambient	310

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	500

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing	Additional comments about the NMR refinement can be placed here, e.g. the structures are based on a total of 499 restraints, 449 are NOE-derived distance constraints, 27 dihedral angle restraints,14 distance restraints from hydrogen bonds, and 9 distance restraints from disulfide bonds.	UXNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations,structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	16 (closest to the average,lowest energy)

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	UXNMR	2.6	Bruker
2	processing	UXNMR	2.6	Bruker
3	structure solution	X-PLOR	3.851	A.T.Brunger
4	refinement	X-PLOR	3.851	A.T.Brunger