4JF2
Structure of a class II preQ1 riboswitch reveals ligand recognition by a new fold
Experimental procedure
| Experimental method | SINGLE |
| Source type | SYNCHROTRON |
| Source details | SSRL BEAMLINE BL7-1 |
| Synchrotron site | SSRL |
| Beamline | BL7-1 |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2012-03-18 |
| Detector | Q315R |
| Wavelength(s) | 1.127 |
| Spacegroup name | C 2 2 21 |
| Unit cell lengths | 58.036, 85.972, 98.120 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 25.695 - 2.280 |
| R-factor | 0.1977 |
| Rwork | 0.193 |
| R-free | 0.24420 |
| Structure solution method | FOURIER SYNTHESIS |
| RMSD bond length | 0.008 |
| RMSD bond angle | 1.368 |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | PHENIX |
| Refinement software | PHENIX (1.8.2_1290) |
Data quality characteristics
| Overall | Inner shell | Outer shell | |
| Low resolution limit [Å] | 50.000 | 50.000 | 2.280 |
| High resolution limit [Å] | 2.200 | 4.740 | 2.200 |
| Rmerge | 0.054 | 0.039 | 0.281 |
| Number of reflections | 12133 | ||
| <I/σ(I)> | 22.3 | ||
| Completeness [%] | 94.5 | 95.8 | 67.2 |
| Redundancy | 4.1 | 3.9 | 3.1 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION | 6 | 293 | 14.8% PEG 6000, 160 mM MgCl2, 50 mM Na-cacodylate pH 6.0, 1 mM spermine, 150 mM CsCl, Vapor Diffusion, temperature 293K |
