Structure of an engineered splicing intein mutant based on Mycobacterium tuberculosis RecA
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | 3D HCCH-COSY | 50 mM sodium phosphate, 100 mM sodium chloride, 1 mM sodium azide, 0.15-0.2 mM [U-98% 13C; U-98% 15N] protein | 90% H2O/10% D2O | 150 | 7 | ambient | 298 | |
| 2 | 3D HNCACB | 50 mM sodium phosphate, 100 mM sodium chloride, 1 mM sodium azide, 0.15-0.2 mM [U-98% 13C; U-98% 15N] protein | 90% H2O/10% D2O | 150 | 7 | ambient | 298 | |
| 3 | 3D 1H-13C NOESY aliphatic | 50 mM sodium phosphate, 100 mM sodium chloride, 1 mM sodium azide, 0.15-0.2 mM [U-98% 13C; U-98% 15N] protein | 90% H2O/10% D2O | 150 | 7 | ambient | 298 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Bruker | ARX | 800 |
| 2 | Bruker | ARX | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| simulated annealing | Sparky | |
| 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) |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | chemical shift assignment | Sparky | Goddard | |
| 2 | structure solution | X-PLOR NIH | Schwieters, Kuszewski, Tjandra and Clore | |
| 3 | refinement | X-PLOR NIH | ||














