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 |