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 |
