1LLW
Structural studies on the synchronization of catalytic centers in glutamate synthase: complex with 2-oxoglutarate
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | ESRF BEAMLINE ID14-1 |
| Synchrotron site | ESRF |
| Beamline | ID14-1 |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2001-06-21 |
| Detector | MARRESEARCH |
| Wavelength(s) | 0.9 |
| Spacegroup name | P 43 21 2 |
| Unit cell lengths | 166.521, 166.521, 219.874 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 12.000 - 2.700 |
| R-factor | 0.23591 |
| Rwork | 0.234 |
| R-free | 0.29300 * |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1ea0 |
| RMSD bond length | 0.020 |
| RMSD bond angle | 2.200 * |
| Data reduction software | MOSFLM |
| Data scaling software | SCALA |
| Phasing software | AMoRE |
| Refinement software | REFMAC (5.1.06) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 62.000 * | 2.850 |
| High resolution limit [Å] | 2.700 | 2.700 |
| Rmerge | 0.088 | 0.289 * |
| Total number of observations | 947721 * | |
| Number of reflections | 83666 | |
| <I/σ(I)> | 4.5 | 2.9 |
| Completeness [%] | 98.1 | 92.7 * |
| Redundancy | 4 | 4.2 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7 * | 4 * | PEG4000, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | enzyme | 16 (mg/ml) | |
| 2 | 1 | drop | PIPES-KOH | 25 (mM) | pH7.0 |
| 3 | 1 | drop | EDTA | 1 (mM) | |
| 4 | 1 | drop | glycerol | 10 (%) | |
| 5 | 1 | reservoir | PEG4000 | 24-30 (%(w/v)) | |
| 6 | 1 | reservoir | Tris-HCl | 100 (mM) | pH8.5 |
| 7 | 1 | reservoir | sodium acetate | 200 (mM) |
