3GX7
Crystal structure of the T. tengcongensis SAM-I riboswitch variant U34C/A94G mutant A6C/U7G/A87C/U88G bound with SAM
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | ROTATING ANODE |
Source details | RIGAKU RU200 |
Temperature [K] | 100 |
Detector technology | IMAGE PLATE |
Collection date | 2009-02-12 |
Detector | RIGAKU RAXIS IV++ |
Wavelength(s) | 1.54 |
Spacegroup name | P 43 21 2 |
Unit cell lengths | 62.630, 62.630, 159.615 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 19.952 - 2.950 |
R-factor | 0.22 |
Rwork | 0.214 |
R-free | 0.27080 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 2gis |
RMSD bond length | 0.004 |
RMSD bond angle | 1.889 |
Data reduction software | CrystalClear |
Data scaling software | CrystalClear |
Phasing software | PHENIX |
Refinement software | PHENIX ((phenix.refine)) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 20.000 | 3.060 |
High resolution limit [Å] | 2.950 | 2.950 |
Rmerge | 0.068 | 0.439 |
Number of reflections | 7157 | |
<I/σ(I)> | 13.3 | 3.7 |
Completeness [%] | 99.6 | 100 |
Redundancy | 6.66 | 6.81 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 303 | 15 mM barium chloride, 30 mM potassium chloride, 40 mM cacodylate, 10% MPD, 12 mM spermine-HCl, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 303K |
Crystallization Reagents
ID | crystal ID | solution ID | reagent name | concentration | details |
1 | 1 | 1 | barium chloride | ||
10 | 1 | 2 | spermine-HCl | ||
2 | 1 | 1 | potassium chloride | ||
3 | 1 | 1 | cacodylate | ||
4 | 1 | 1 | MPD | ||
5 | 1 | 1 | spermine-HCl | ||
6 | 1 | 2 | barium chloride | ||
7 | 1 | 2 | potassium chloride | ||
8 | 1 | 2 | cacodylate | ||
9 | 1 | 2 | MPD |