2LTI
Structure of lasso peptide Astexin1
SOLUTION NMR
NMR Experiment | ||||||||
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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 | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AVANCE III | 500 |
NMR Refinement | ||
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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 | |
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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 | ||||
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# | 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 |