4ME5
Crystal structure of Staphylococcal nuclease variant Delta+PHS V23S/V66A at cryogenic temperature
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SEALED TUBE |
Source details | BRUKER |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2013-01-25 |
Detector | APEX II CCD |
Wavelength(s) | 1.54 |
Spacegroup name | P 1 21 1 |
Unit cell lengths | 31.163, 60.328, 38.127 |
Unit cell angles | 90.00, 93.61, 90.00 |
Refinement procedure
Resolution | 38.050 - 1.800 |
R-factor | 0.1697 |
Rwork | 0.164 |
R-free | 0.22250 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 3bdc |
RMSD bond length | 0.019 |
RMSD bond angle | 1.944 |
Data reduction software | APEX |
Phasing software | PHASER (2.3.0) |
Refinement software | REFMAC |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 50.000 | 1.890 |
High resolution limit [Å] | 1.800 | 1.800 |
Rmerge | 0.033 | 0.261 |
Number of reflections | 13154 | |
<I/σ(I)> | 23.8 | 3.7 |
Completeness [%] | 100.0 | 100 |
Redundancy | 10.7 | 4.9 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 6 | 277 | 25% MPD, 25 mM potassium phosphate, calcium chloride, pdTp, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K |