3OSK
Crystal structure of human CTLA-4 apo homodimer
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | DIAMOND BEAMLINE I04 |
Synchrotron site | Diamond |
Beamline | I04 |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2007-10-11 |
Detector | ADSC QUANTUM 315r |
Wavelength(s) | 0.98 |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 43.864, 51.457, 102.849 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 27.012 - 1.800 |
R-factor | 0.2032 |
Rwork | 0.200 |
R-free | 0.27510 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1i8l chain C |
RMSD bond length | 0.010 |
RMSD bond angle | 1.223 |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | PHASER |
Refinement software | PHENIX ((phenix.refine: 1.6_289)) |
Data quality characteristics
Overall | |
Low resolution limit [Å] | 30.000 |
High resolution limit [Å] | 1.800 |
Rmerge | 0.111 |
Number of reflections | 22221 |
<I/σ(I)> | 10.33 |
Completeness [%] | 99.0 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, SITTING DROP | 5.5 | 295 | 25% Polyethylene glycol 3350 (w/v), 100mM bis-Tris pH 5.5, 200mM ammonium acetate, VAPOR DIFFUSION, SITTING DROP, temperature 295K |