2LTI | pdb_00002lti

Structure of lasso peptide Astexin1

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	4.4 mg/mL ASTEXIN1	DMSO			AMBIENT	295
2	2D NOESY	4.4 mg/mL ASTEXIN1	DMSO			AMBIENT	295
3	2D COSY	4.4 mg/mL ASTEXIN1	DMSO			AMBIENT	295

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

NMR Refinement
Method	Details	Software
STRUCTURES WERE CALCULATED BY TORSION ANGLE DYNAMICS AND SIMULATED ANNEALING.	AN ENSEMBLE OF 200 STRUCTURES WAS GENERATED BY SIMULATED ANNEALING UNDER A SET OF 144 NOE DERIVED UPPER DISTANCE RESTRAINTS AND 5 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 LEAST RESTRAINT VIOLATIONS, STRUCTURES WITH THE LOWEST ENERGY
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CYANA	2.1	GUNTERT, MUMENTHALER AND WUTHRICH
2	collection	TopSpin	2.1	Bruker Biospin
3	data analysis	MESTRENOVA	7.0.3	Mestrelab Research
4	refinement	Tinker	6.0	PONDER