3FO4
Crystal structure of guanine riboswitch C74U mutant bound to 6-chloroguanine
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | ROTATING ANODE |
Source details | RIGAKU |
Temperature [K] | 100 |
Detector technology | IMAGE PLATE |
Collection date | 2005-05-13 |
Detector | RIGAKU RAXIS IV |
Wavelength(s) | 1.5418 |
Spacegroup name | C 1 2 1 |
Unit cell lengths | 132.600, 35.170, 41.790 |
Unit cell angles | 90.00, 90.38, 90.00 |
Refinement procedure
Resolution | 19.970 - 1.900 |
R-factor | 0.226 |
Rwork | 0.226 |
R-free | 0.24900 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1U8D |
RMSD bond length | 0.004 |
RMSD bond angle | 0.900 |
Data reduction software | d*TREK |
Data scaling software | SCALEPACK |
Phasing software | CNS |
Refinement software | CNS |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 20.000 | 1.860 |
High resolution limit [Å] | 1.800 | 1.800 |
Number of reflections | 15304 | |
<I/σ(I)> | 15.8 | |
Completeness [%] | 91.8 | 69.5 |
Redundancy | 3.56 | 3.31 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | 20% PEG 2000, 480 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 | PEG 2000 | ||
2 | 1 | 1 | Ammonium acetate | ||
3 | 1 | 1 | Cobalt hexammine | ||
4 | 1 | 1 | Potassium HEPES | ||
5 | 1 | 2 | PEG 2000 | ||
6 | 1 | 2 | Ammonium acetate | ||
7 | 1 | 2 | Cobalt hexammine | ||
8 | 1 | 2 | Potassium HEPES |