2MFS

Solution NMR structure of the cactus-derived antimicrobial peptide Ep-AMP1

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H TOCSY	6 mg/mL Ep-AMP1	90% H2O/10% D2O	0	3.0	ambient	298
2	2D 1H-1H NOESY	6 mg/mL Ep-AMP1	90% H2O/10% D2O	0	3.0	ambient	298
3	2D DQF-COSY	6 mg/mL Ep-AMP1	90% H2O/10% D2O	0	3.0	ambient	298
4	2D 1H-1H TOCSY	4 mg/mL Ep-AMP1	100% D2O	0	3.0	ambient	298
5	2D 1H-1H NOESY	4 mg/mL Ep-AMP1	100% D2O	0	3.0	ambient	298
6	2D 1H-13C HSQC	4 mg/mL Ep-AMP1	100% D2O	0	3.0	ambient	298
7	2D 1H-1H ECOSY	4 mg/mL Ep-AMP1	100% D2O	0	3.0	ambient	298

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

NMR Refinement
Method	Details	Software
simulated annealing	Simulated annealing followed by refinement and energy minimization in explicit solvent.	TopSpin

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	collection	TopSpin	2.1	Bruker Biospin
2	processing	TopSpin	2.1	Bruker Biospin
3	data analysis	XEASY		Bartels et al.
4	peak picking	XEASY		Bartels et al.
5	chemical shift assignment	XEASY		Bartels et al.
6	structure solution	CYANA	3.0	Guntert, Mumenthaler and Wuthrich
7	structure solution	CNS	1.2	Brunger, Adams, Clore, Gros, Nilges and Read
8	refinement	CNS	1.2	Brunger, Adams, Clore, Gros, Nilges and Read