Solution structure of the N-terminal domain of Synechococcus elongatus KaiA (KaiA135N); Average minimized structure.
SOLUTION NMR
| NMR Experiment | ||||||||
|---|---|---|---|---|---|---|---|---|
| Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
| 1 | HNHA | 3mM KaiA135N U-15N, 50mM sodium chloride, 20mM phosphate buffer | 95% H2O/5% D2O | 0.17 | 7.0 | ambient | 298 | |
| 2 | 4D_13C/15N-separated_NOESY | 3mM KaiA135N U-15N,13C; 50mM sodium chloride; 20mM phosphate buffer | 95% H2O/5% D2O | 0.17 | 7.0 | ambient | 298 | |
| 3 | 4D_13C-separated_NOESY | 3mM KaiA135N U-15N,13C; 50mM sodium chloride; 20mM phosphate buffer | 100% D2O | 0.17 | 7.0 | ambient | 298 | |
| 4 | HNHB | 3mM KaiA135N U-15N, 50mM sodium chloride, 20mM phosphate buffer | 95% H2O/5% D2O | 0.17 | 7.0 | ambient | 298 | |
| 5 | HAHB | 3mM KaiA135N U-15N,13C; 50mM sodium chloride; 20mM phosphate buffer | 100% D2O | 0.17 | 7.0 | ambient | 298 | |
| 6 | BRCTCO/BRCTCN | 3mM KaiA135N U-15N,13C; 50mM sodium chloride; 20mM phosphate buffer | 100% D2O | 0.17 | 7.0 | ambient | 298 | |
| NMR Spectrometer Information | |||
|---|---|---|---|
| Spectrometer | Manufacturer | Model | Field Strength |
| 1 | Varian | INOVA | 600 |
| NMR Refinement | ||
|---|---|---|
| Method | Details | Software |
| Distance geometry, Simulated annealing regularization, Simulated annealing refinement | The structures are based on 2034 restraints: 1816 are NOE-derived distance constraints, 187 are dihedral angle restraints and 31 are distance restraints from hydrogen bonds | VNMR |
| NMR Ensemble Information | |
|---|---|
| Conformer Selection Criteria | |
| Conformers Calculated Total Number | |
| Conformers Submitted Total Number | 1 |
| Additional NMR Experimental Information | |
|---|---|
| Details | Submission corresponds to the average minimized structure based on a 25-low-energy-structures family. The 1H, 15N and 13C chemical shifts of KaiA135N are deposited at the BMRB database (http://www.bmrb.wisc.edu) under the accession number 5031. |
| Computation: NMR Software | ||||
|---|---|---|---|---|
| # | Classification | Version | Software Name | Author |
| 1 | collection | VNMR | 6.1b | Varian Associates |
| 2 | processing | NMRPipe | 1.8 Rev 2001.030.21.27 | Delaglio |
| 3 | data analysis | PIPP | 4.2.6 | Garrett |
| 4 | refinement | X-PLOR | 3.851 | Brunger |
