1CK3
N276D MUTANT OF ESCHERICHIA COLI TEM-1 BETA-LACTAMASE
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | ROTATING ANODE |
| Source details | RIGAKU RU300 |
| Temperature [K] | 277 |
| Detector technology | IMAGE PLATE |
| Collection date | 1995-04 |
| Detector | RIGAKU RAXIS IIC |
| Spacegroup name | P 21 21 21 |
| Unit cell lengths | 41.820, 60.360, 88.650 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 23.600 - 2.280 |
| R-factor | 0.165 |
| Rwork | 0.165 |
| R-free | 0.23500 |
| Structure solution method | OTHER |
| Starting model (for MR) | 1btl |
| RMSD bond length | 0.005 |
| RMSD bond angle | 22.300 * |
| Data reduction software | MOSFLM |
| Data scaling software | CCP4 ((AGROVATA) |
| Phasing software | X-PLOR |
| Refinement software | X-PLOR (3.1) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 24.500 | 2.340 |
| High resolution limit [Å] | 2.280 | 2.280 |
| Rmerge | 0.038 | 0.077 |
| Total number of observations | 19279 * | |
| Number of reflections | 8771 | 416 * |
| <I/σ(I)> | 25.2 | 15.1 |
| Completeness [%] | 81.6 | 54 |
| Redundancy | 2.2 | 2.1 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion * | 7.8 | 4 * | pH 7.80 |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | protein | 11.6 (mg/ml) | |
| 2 | 1 | drop | sodium-potassium phosphate | 70 (mM) | |
| 3 | 1 | drop | ammonium sulfate | 8.3 (%sat) | |
| 4 | 1 | reservoir | ammonium sulfate | 42 (%sat) | |
| 5 | 1 | reservoir | acetone | 4 (%(v/v)) | |
| 6 | 1 | reservoir | sodium-potassium phosphate | 100 (mM) |
