SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 2D NOESY | 1.3 mM S14G-humanin; 60 microM NaN3 to prevent microbial growth; H2O/TFE-d3 7:3; pH 2.6 (uncorrected for the presence of TFE); at 298 and 280 K | H2O/TFE-d3 7:3 | 60 microM NaN3 | 2.7 | ambient | 298 | |
| 2 | 2D TOCSY | 1.3 mM S14G-humanin; 60 microM NaN3 to prevent microbial growth; H2O/TFE-d3 7:3; pH 2.6 (uncorrected for the presence of TFE); at 298 and 280 K | H2O/TFE-d3 7:3 | 60 microM NaN3 | 2.7 | ambient | 298 | |
| 3 | 2D NOESY | 1.3 mM S14G-humanin; 60 microM NaN3 to prevent microbial growth; H2O/TFE-d3 7:3; pH 2.6 (uncorrected for the presence of TFE); at 298 and 280 K | H2O/TFE-d3 7:3 | 60 microM NaN3 | 2.7 | ambient | 280 | |
| 4 | 2D TOCSY | 1.3 mM S14G-humanin; 60 microM NaN3 to prevent microbial growth; H2O/TFE-d3 7:3; pH 2.6 (uncorrected for the presence of TFE); at 298 and 280 K | H2O/TFE-d3 7:3 | 60 microM NaN3 | 2.7 | ambient | 280 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | AVANCE | 500 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing torsion angle dynamics | Starting from an extended structure a total of 300 structures were generated from 133 NOE-derived distance restraints and 2 distance restraints based on temperature coefficient data using the simulated annealing and energy minimization protocol in the program CNS, version 1.1 | XwinNMR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | 14 convergent conformers are presented having the lowest energy and the best structural quality in Ramachadran plot |
| Conformers Calculated Total Number | 300 |
| Conformers Submitted Total Number | 14 |
| 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 | collection | XwinNMR | 2.6 | Bruker |
| 2 | processing | XwinNMR | 2.6 | Bruker |
| 3 | data analysis | Sparky | 3 | Goddard, T.D. & Kneller, D.G. |
| 4 | structure solution | CNS | 1.1 | Brunger, A.T. |
| 5 | refinement | CNS | 1.1 | Brunger, A.T. |
