4ECA
ASPARAGINASE FROM E. COLI, MUTANT T89V WITH COVALENTLY BOUND ASPARTATE
Experimental procedure
| Source type | ROTATING ANODE |
| Source details | RIGAKU RUH2R |
| Temperature [K] | 110 |
| Detector technology | IMAGE PLATE |
| Collection date | 1995-06-08 |
| Detector | RIGAKU |
| Spacegroup name | P 21 21 21 |
| Unit cell lengths | 95.000, 126.200, 155.700 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 10.000 - 2.200 |
| R-factor | 0.181 |
| Rwork | 0.181 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 3eca |
| RMSD bond length | 0.015 |
| RMSD bond angle | 25.000 * |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | X-PLOR (3.1) |
| Refinement software | X-PLOR (3.1) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 20.000 | 2.300 |
| High resolution limit [Å] | 2.200 | 2.200 |
| Rmerge | 0.102 | 0.410 |
| Total number of observations | 197314 * | |
| Number of reflections | 68197 | |
| <I/σ(I)> | 11 | 2.2 |
| Completeness [%] | 72.0 | 58 |
| Redundancy | 2.9 | 2.2 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion * | 5 | 15 * | CRYSTALS WERE GROWN BY VAPOR DIFFUSION PROTEIN SOLUTION: 17 MG/ML PROTEIN IN 10 MM TRIS-HCL, PH 7.0 WELL SOLUTION: 36% MPD, 100 MM SODIUM ASPARTATE, 100 MM SODIUM ACETATE, PH 5.0 DROP PROTEIN:WELL = 1:2 TEMPERATURE: 4C, vapor diffusion - hanging drop, temperature 277K |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | protein | 5.7 (mg/ml) | |
| 2 | 1 | drop | Tris-HCl | 3.3 (mM) | |
| 3 | 1 | drop | MPD | 24 (%) | |
| 4 | 1 | drop | sodium aspartate | 67 (mM) | |
| 5 | 1 | drop | sodium acetate | 67 (mM) | |
| 6 | 1 | reservoir | MPD | 36 (%) | |
| 7 | 1 | reservoir | sodium aspartate | 100 (mM) | |
| 8 | 1 | reservoir | sodium acetate | 100 (mM) |
