1UXK
Large improvement in the thermal stability of a tetrameric malate dehydrogenase by single point mutations at the dimer-dimer interface
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | EMBL/DESY, HAMBURG BEAMLINE X31 |
| Synchrotron site | EMBL/DESY, HAMBURG |
| Beamline | X31 |
| Temperature [K] | 100 |
| Detector technology | IMAGE PLATE |
| Detector | MARRESEARCH |
| Spacegroup name | P 31 2 1 |
| Unit cell lengths | 105.405, 105.405, 102.305 |
| Unit cell angles | 90.00, 90.00, 120.00 |
Refinement procedure
| Resolution | 25.000 - 1.800 |
| R-factor | 0.178 |
| Rwork | 0.178 |
| R-free | 0.21400 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1guy |
| RMSD bond length | 0.005 |
| RMSD bond angle | 1.160 |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | CNS |
| Refinement software | CNS (1.0) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 25.000 | 1.860 |
| High resolution limit [Å] | 1.800 | 1.800 |
| Rmerge | 0.043 | 0.530 |
| Number of reflections | 55441 | |
| <I/σ(I)> | 19.5 | 2.1 |
| Completeness [%] | 90.7 | 68 |
| Redundancy | 3.2 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | 4.5 | 10-20% PEG400, NA ACETATE PH 4.5, 40MM CDCL2 |
