3KRK
X-ray crystal structure of arachidonic acid bound in the cyclooxygenase channel of L531F murine COX-2
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | CHESS BEAMLINE A1 |
Synchrotron site | CHESS |
Beamline | A1 |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2008-05-08 |
Detector | ADSC QUANTUM 210 |
Wavelength(s) | 0.9777 |
Spacegroup name | I 2 2 2 |
Unit cell lengths | 120.790, 133.040, 180.654 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 19.920 - 2.400 |
R-factor | 0.1819 |
Rwork | 0.179 |
R-free | 0.22810 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1cvu |
RMSD bond length | 0.008 |
RMSD bond angle | 1.470 |
Data reduction software | MOSFLM |
Data scaling software | XDS |
Phasing software | PHASER |
Refinement software | REFMAC (5.5.0088) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 20.000 | 2.530 |
High resolution limit [Å] | 2.400 | 2.400 |
Rmerge | 0.174 | 0.322 |
Number of reflections | 55133 | |
<I/σ(I)> | 8 | 2.1 |
Completeness [%] | 96.8 | 90.2 |
Redundancy | 5.8 | 2.4 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 296 | 23-34% Polyacrylic acid 5100, 0.1M Hepes pH 7.5, 0.02M MgCl2, VAPOR DIFFUSION, SITTING DROP, temperature 296K |