1LW4
X-ray structure of L-Threonine Aldolase (low-specificity) in complex with L-allo-threonine
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | NSLS BEAMLINE X9A |
| Synchrotron site | NSLS |
| Beamline | X9A |
| Temperature [K] | 200 |
| Detector technology | CCD |
| Collection date | 2001-07-13 |
| Detector | MARRESEARCH |
| Wavelength(s) | 0.969 |
| Spacegroup name | P 21 21 21 |
| Unit cell lengths | 95.900, 100.500, 150.320 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 20.000 - 1.900 |
| R-factor | 0.1844 |
| Rwork | 0.183 |
| R-free | 0.20600 * |
| Structure solution method | FOURIER SYNTHESIS |
| Starting model (for MR) | PDB ID 1JG8 |
| RMSD bond length | 0.006 |
| RMSD bond angle | 1.400 * |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | CNS |
| Refinement software | CNS |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 20.000 | 1.980 |
| High resolution limit [Å] | 1.900 | 1.900 |
| Rmerge | 0.067 * | 0.184 * |
| Total number of observations | 1191136 * | |
| Number of reflections | 220635 | |
| Completeness [%] | 97.9 | 99.8 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | PEG 400, calcium chloride, HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | reservoir | PEG400 | 30 (%(v/v)) | |
| 2 | 1 | reservoir | 200 (mM) | ||
| 3 | 1 | reservoir | HEPES | 0.1 (M) | pH7.5 |
| 4 | 1 | reservoir | TCEP | 0.5 (mM) |
