2AB9

Discovery, structural determination and processing of the precursor protein that produces the cyclic trypsin inhibitor SFTI-1

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	approx 1mM pro-SFTI-1, 90% H2O, 10% D2O	90% H2O/10% D2O	NA	4	ambient	298
2	2D NOESY	approx 1mM pro-SFTI-1, 90% H2O, 10% D2O	90% H2O/10% D2O	NA	4	ambient	298
3	DQF-COSY	approx 1mM pro-SFTI-1, 90% H2O, 10% D2O	90% H2O/10% D2O	NA	4	ambient	298
4	E-COSY	approx 1mM pro-SFTI-1	100% D2O	NA	4	ambient	298

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

NMR Refinement
Method	Details	Software
torsion angle dynamics, simulated annealing		CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS	1.0	A.T.Brunger, P.D.Adams, G.M.Clore, W.L.Delano, P.Gros, R.W.Grosse-Kunstleve, J.-S.Jiang, J.Kuszewski, M.Nilges, N.S.Pannu, R.J.Read, L.M.Rice, T.Simonson, G.L.Warren
2	refinement	CNS	1.0

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.