1MA2

Tachyplesin I Wild type peptide NMR Structure

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	Tachyplesin I peptide at 0.5 mM	90%/10% H2O/D2O and 99% D2O with 0.15% TFA, pH 3.0	0.15%	3.0	1 atm	298
2	2D TOCSY	Tachyplesin I peptide at 0.5 mM	90%/10% H2O/D2O and 99% D2O with 0.15% TFA, pH 3.0	0.15%	3.0	1 atm	298

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

NMR Refinement
Method	Details	Software
simulated annealing with complete cross validation		CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	300
Conformers Submitted Total Number	31
Representative Model	1 (minimized average structure)

Additional NMR Experimental Information
Details	2D experiments were collected both in pure D2O and 9:1 H2O:D2O. To resolve overlap, two temperatures were used, 277K and 298K, and NOE restraints from both temperatures were used in the refinement process.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS	1.0	Brunger, Adams, Clore, DeLano, Gros, Grosse-Kunstleve, Jiang, Kuszewski, Nilges, Pannu, Read, Rice, Simonson, Warren
2	collection	XwinNMR	6.1	Bruker
3	processing	XwinNMR	6.1	Bruker
4	refinement	CNS	1.0	Brunger, Adams, Clore, DeLano, Gros, Grosse-Kunstleve, Jiang, Kuszewski, Nilges, Pannu, Read, Rice, Simonson, Warren