1E25
The high resolution structure of PER-1 class A beta-lactamase
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | LURE BEAMLINE DW32 |
| Synchrotron site | LURE |
| Beamline | DW32 |
| Temperature [K] | 293 |
| Detector technology | IMAGE PLATE |
| Collection date | 1998-04-15 |
| Detector | MARRESEARCH |
| Spacegroup name | P 43 |
| Unit cell lengths | 84.600, 84.600, 46.890 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 19.940 - 1.900 |
| R-factor | 0.14 |
| Rwork | 0.140 |
| R-free | 0.18300 |
| Structure solution method | SIRAS |
| RMSD bond length | 0.012 |
| RMSD bond angle | 22.600 * |
| Data reduction software | DENZO |
| Data scaling software | SCALA |
| Phasing software | CNS (0.5) |
| Refinement software | CNS (0.5) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 24.180 | 2.000 |
| High resolution limit [Å] | 1.900 | 1.900 |
| Rmerge | 0.052 * | 0.122 * |
| Total number of observations | 66657 * | |
| Number of reflections | 25029 | |
| <I/σ(I)> | 9.2 | 5.6 |
| Completeness [%] | 94.3 | 93.7 |
| Redundancy | 2.7 | 2.6 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion * | 7.6 * | 8 * | 18% (V/V) SATURATED AMMONIUM SULFATE, 1MM DITHIOTHREITOL, 100 MM SODIUM ACETATE, PH4.7, pH 4.70 |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | protein | 20 (mg/ml) | |
| 2 | 1 | drop | Tris-HCl | 20 (mM) | |
| 3 | 1 | drop | dithiothreitol | 0.5 (mM) | |
| 4 | 1 | drop | 0.06 (%) | ||
| 5 | 1 | reservoir | ammonium sulfate | 18 (%(v/v)sat) | |
| 6 | 1 | reservoir | sodium acetate | 0.1 (M) | |
| 7 | 1 | reservoir | dithiothreitol | 1 (mM) |
