2M8F | pdb_00002m8f

Structure of lasso peptide astexin3

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	16.25 mg/mL astexin3	DMSO				295
2	2D NOESY	16.25 mg/mL astexin3	DMSO				295
3	2D COSY	16.25 mg/mL astexin3	DMSO				295

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	500

NMR Refinement
Method	Details	Software
simulated annealing, torsion angle dynamics	An ensemble of 200 structures was generated by simulated annealing under a set of 218 NOE-derived upper distance restraints and 11 3JHHA coupling-derived phi angle restraints. 20 lowest energy structures were refined further by energy minimization using TINKER 6.0.	CYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (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	structure solution	CYANA	6.0	Guntert, Mumenthaler and Wuthrich
2	processing	TopSpin	2.1	Ponder
3	processing	MESTRENOVA	7.0.3	MestreLab Research, S.S.L., Santiago de Compostella, Spain
4	refinement	Tinker	6.0	Ponder
5	refinement	CYANA	6.0	Guntert, Mumenthaler and Wuthrich