2GQ4
Crystal structure of an RNA racemate
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | EMBL/DESY, HAMBURG BEAMLINE BW7A |
| Synchrotron site | EMBL/DESY, HAMBURG |
| Beamline | BW7A |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2002-07-18 |
| Detector | MAR CCD 165 mm |
| Wavelength(s) | 0.98 |
| Spacegroup name | P -1 |
| Unit cell lengths | 26.933, 38.160, 45.897 |
| Unit cell angles | 112.25, 101.56, 92.20 |
Refinement procedure
| Resolution | 10.000 - 1.350 |
| R-factor | 0.241 |
| R-free | 0.27000 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | NDB entry AR0012 |
| RMSD bond length | 0.013 |
| RMSD bond angle | 1.865 |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | AMoRE |
| Refinement software | REFMAC (5.1) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 10.000 | 1.370 |
| High resolution limit [Å] | 1.350 | 1.350 |
| Number of reflections | 34306 | |
| <I/σ(I)> | 38 | 2.3 |
| Completeness [%] | 95.0 | 92 |
| Redundancy | 12 | 4 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 287 | 7% PEG 400, 0.1 M CaCl2, 50 mM HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 287K |
Crystallization Reagents
| ID | crystal ID | solution ID | reagent name | concentration | details |
| 1 | 1 | 1 | PEG 400 | ||
| 2 | 1 | 1 | CaCl2 | ||
| 3 | 1 | 1 | HEPES | ||
| 4 | 1 | 1 | H2O | ||
| 5 | 1 | 2 | PEG 400 | ||
| 6 | 1 | 2 | CaCl2 | ||
| 7 | 1 | 2 | H2O |
