1Q9A
Crystal structure of the sarcin/ricin domain from E.coli 23S rRNA at 1.04 resolution
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | APS BEAMLINE 19-ID |
| Synchrotron site | APS |
| Beamline | 19-ID |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2000-07-07 |
| Detector | CUSTOM-MADE |
| Wavelength(s) | 0.97764 |
| Spacegroup name | P 43 |
| Unit cell lengths | 29.529, 29.529, 76.574 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 40.000 - 1.040 |
| R-factor | 0.1477 |
| Rwork | 0.136 |
| R-free | 0.17740 |
| Structure solution method | FOURIER SYNTHESIS |
| RMSD bond length | 0.007 |
| RMSD bond angle | 0.023 |
| Data reduction software | HKL-2000 |
| Data scaling software | SCALEPACK |
| Phasing software | SHELXS |
| Refinement software | SHELXL-97 |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 40.000 | 1.060 |
| High resolution limit [Å] | 1.040 | 1.040 |
| Rmerge | 0.037 | 0.446 |
| Number of reflections | 29848 | |
| <I/σ(I)> | 55.3 | 2 |
| Completeness [%] | 94.9 | 82.5 |
| Redundancy | 5.1 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion * | 7 | 295 | ammonium sulfate, K-MOPS, magnesium chloride, manganese chloride, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K |
Crystallization Reagents
| ID | crystal ID | solution ID | reagent name | concentration | details |
| 1 | 1 | 1 | ammonium sulfate | ||
| 10 | 1 | 2 | H2O | ||
| 2 | 1 | 1 | K-MOPS | ||
| 3 | 1 | 1 | magnesium chloride | ||
| 4 | 1 | 1 | manganese chloride | ||
| 5 | 1 | 1 | H2O | ||
| 6 | 1 | 2 | ammonium sulfate | ||
| 7 | 1 | 2 | K-MOPS | ||
| 8 | 1 | 2 | magnesium chloride | ||
| 9 | 1 | 2 | manganese chloride |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | RNA | 2.5 (mg/ml) | |
| 2 | 1 | drop | potassium MOPS | 50 (mM) | pH7.0 |
| 3 | 1 | drop | 5 (mM) | ||
| 4 | 1 | reservoir | ammonium sulfate | 3.0-3.2 (M) | |
| 5 | 1 | reservoir | potassium MOPS | 50 (mM) | pH7.0 |
| 6 | 1 | reservoir | 10 (mM) | ||
| 7 | 1 | reservoir | 10 (mM) |
