1XUX
Structural rationalization of a large difference in RNA affinity despite a small difference in chemistry between two 2'-O-modified nucleic acid analogs
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | APS BEAMLINE 5ID-B |
| Synchrotron site | APS |
| Beamline | 5ID-B |
| Temperature [K] | 110 |
| Detector technology | CCD |
| Collection date | 2002-11-01 |
| Detector | MARRESEARCH |
| Wavelength(s) | 0.96297 |
| Spacegroup name | P 1 21 1 |
| Unit cell lengths | 27.057, 44.606, 44.106 |
| Unit cell angles | 90.00, 99.26, 90.00 |
Refinement procedure
| Resolution | 30.000 - 1.300 |
| R-factor | 0.127 |
| Rwork | 0.127 |
| R-free | 0.19400 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1dpl |
| RMSD bond length | 0.014 |
| RMSD bond angle | 0.022 |
| Data scaling software | SCALEPACK |
| Phasing software | EPMR |
| Refinement software | SHELXL-97 |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 30.000 | 1.380 |
| High resolution limit [Å] | 1.300 | 1.300 |
| Rmerge | 0.044 | 0.073 |
| Number of reflections | 23065 | |
| Completeness [%] | 90.4 | 49.8 |
| Redundancy | 9.6 | 13.1 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7 | 291 | 1mM 10mer, 40mM sodium cacodylate, 12 mM spermine 4HCl, 80mM potassium chloride, 10% MPD, pH 7, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
