3D4W
Crystal structure of Staphylococcal nuclease variant Delta+PHS A109R at cryogenic temperature
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SEALED TUBE |
Source details | OTHER |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2006-11-10 |
Detector | BRUKER APEX II |
Wavelength(s) | 1.5418 |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 34.090, 59.843, 73.558 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 31.300 - 1.900 |
R-factor | 0.197 |
Rwork | 0.191 |
R-free | 0.25200 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1tqo all waters removed b = 20.0 ILE-92 truncated to ALA |
RMSD bond length | 0.015 |
RMSD bond angle | 1.430 |
Data reduction software | SAINT |
Data scaling software | SAINT |
Phasing software | PHASER |
Refinement software | REFMAC |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 34.100 | 2.000 |
High resolution limit [Å] | 1.900 | 1.900 |
Rmerge | 0.020 | 0.108 |
Number of reflections | 12416 | |
<I/σ(I)> | 41.54 | 8.46 |
Completeness [%] | 99.7 | 98.4 |
Redundancy | 12.05 | 5.91 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 277 | 43% MPD, 25 mM Potassium Phosphate, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K |