5W58
Crystal Complex of Cyclooxygenase-2: (S)-ARN-2508 (a dual COX and FAAH inhibitor)
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | APS BEAMLINE 24-ID-E |
Synchrotron site | APS |
Beamline | 24-ID-E |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2016-03-02 |
Detector | ADSC QUANTUM 315 |
Wavelength(s) | 0.97918 |
Spacegroup name | I 41 2 2 |
Unit cell lengths | 173.774, 173.774, 203.304 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 66.048 - 2.267 |
R-factor | 0.1697 |
Rwork | 0.169 |
R-free | 0.18860 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 3nt1 |
RMSD bond length | 0.021 |
RMSD bond angle | 1.270 |
Data reduction software | XDS |
Data scaling software | Aimless (0.5.21) |
Phasing software | PHASER |
Refinement software | PHENIX ((1.10.1_2155: ???)) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 132.100 | 2.320 |
High resolution limit [Å] | 2.267 | 2.270 |
Rmerge | 0.155 | |
Rmeas | 0.161 | 4.323 |
Rpim | 0.042 | 1.136 |
Number of reflections | 71762 | |
<I/σ(I)> | 19.4 | |
Completeness [%] | 99.8 | 96.5 |
Redundancy | 14.6 | 14.2 |
CC(1/2) | 0.999 | 0.311 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 291 | COX-2 protein reconstituted with a 2-fold molar excess of heme in phosphtate buffer, pH 6.7, 100 mM NaCl, 1.2% (w/v) -OG, and 0.1% NaN3, and 10-fold molar excess of inhibitors from 25 mM DMSO stocks were added to protein samples. Mixing 3.5 uL of the protein-inhibitor complex with 3.5 uL crystallization solution containing 50 mM EPPS, pH 8.0, 120 mM MgCl2, 22-26% PEG MME-550 against reservoir solutions comprised of 50 mM EPPS pH 8.0, 120 mM MgCl2, 22-26% PEG MME-550 |