3GER
Guanine riboswitch bound to 6-chloroguanine
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | ALS BEAMLINE 8.2.2 |
Synchrotron site | ALS |
Beamline | 8.2.2 |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2005-10-25 |
Detector | ADSC QUANTUM 315 |
Wavelength(s) | 0.916 |
Spacegroup name | C 1 2 1 |
Unit cell lengths | 132.100, 35.120, 41.810 |
Unit cell angles | 90.00, 90.03, 90.00 |
Refinement procedure
Resolution | 19.930 - 1.700 |
R-factor | 0.216 |
Rwork | 0.216 |
R-free | 0.23400 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1U8D |
RMSD bond length | 0.003 |
RMSD bond angle | 0.900 |
Data reduction software | d*TREK |
Phasing software | CNS |
Refinement software | CNS |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 20.000 | 1.620 |
High resolution limit [Å] | 1.560 | 1.560 |
Rmerge | 0.377 | |
Number of reflections | 27356 | |
<I/σ(I)> | 13.1 | 2.1 |
Completeness [%] | 99.0 | 94 |
Redundancy | 6.73 | 5.49 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | 22.5 % 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 | cobalt hexammine | ||
3 | 1 | 1 | PEG 3K | ||
4 | 1 | 1 | K+ HEPES | ||
5 | 1 | 2 | ammonium acetate | ||
6 | 1 | 2 | cobalt hexammine | ||
7 | 1 | 2 | PEG 3K | ||
8 | 1 | 2 | K+ HEPES |