3GES
Crystal structure of the guanine riboswitch C74U mutant bound to 6-O-methylguanine
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | ROTATING ANODE |
| Source details | RIGAKU |
| Temperature [K] | 100 |
| Detector technology | IMAGE PLATE |
| Collection date | 2005-08-23 |
| Detector | RIGAKU |
| Wavelength(s) | 1.5418 |
| Spacegroup name | C 1 2 1 |
| Unit cell lengths | 130.940, 35.040, 42.190 |
| Unit cell angles | 90.00, 89.61, 90.00 |
Refinement procedure
| Resolution | 19.440 - 2.150 |
| R-factor | 0.238 |
| Rwork | 0.238 |
| R-free | 0.28300 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1U8D |
| RMSD bond length | 0.005 |
| RMSD bond angle | 1.000 |
| Data reduction software | CrystalClear |
| Data scaling software | d*TREK |
| Phasing software | CNS |
| Refinement software | CNS |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 19.440 | 2.230 |
| High resolution limit [Å] | 2.150 | 2.150 |
| Number of reflections | 9699 | |
| <I/σ(I)> | 11.6 | 3 |
| Completeness [%] | 90.9 | 91.4 |
| Redundancy | 6.67 | 6.67 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | 25% PEG 3K, 560 mM ammonium acetate, 12 mM cobalt hexammine, 10 mM K+ HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystallization Reagents
| ID | crystal ID | solution ID | reagent name | concentration | details |
| 1 | 1 | 1 | ammonium acetate | ||
| 2 | 1 | 1 | PEG 3K | ||
| 3 | 1 | 1 | cobalt hexammine | ||
| 4 | 1 | 1 | K+ HEPES | ||
| 5 | 1 | 2 | ammonium acetate | ||
| 6 | 1 | 2 | PEG 3K | ||
| 7 | 1 | 2 | cobalt hexammine | ||
| 8 | 1 | 2 | K+ HEPES |
