3HS5
X-ray crystal structure of arachidonic acid bound to the cyclooxygenase channel of cyclooxygenase-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 | 2008-12-21 |
| Detector | ADSC QUANTUM 210 |
| Wavelength(s) | 0.9789 |
| Spacegroup name | I 2 2 2 |
| Unit cell lengths | 119.983, 132.553, 180.516 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 20.000 - 2.100 |
| R-factor | 0.17074 |
| Rwork | 0.169 |
| R-free | 0.21005 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1cvu |
| RMSD bond length | 0.008 |
| RMSD bond angle | 1.121 |
| Data reduction software | MOSFLM |
| Data scaling software | SCALA |
| Phasing software | PHASER |
| Refinement software | REFMAC (5.5.0088) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 20.000 | 2.210 |
| High resolution limit [Å] | 2.100 | 2.100 |
| Rmerge | 0.084 | 0.582 |
| Number of reflections | 83526 | |
| <I/σ(I)> | 12.9 | 2.4 |
| Completeness [%] | 99.6 | 99.3 |
| Redundancy | 5.1 | 4.7 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 296 | 23-34% Polyacrylic acid 5100, 100mM HEPES pH 7.5, 20mM MgCl2, VAPOR DIFFUSION, SITTING DROP, temperature 296K |
