1S18
Structure and protein design of human apyrase
Experimental procedure
Experimental method | MAD |
Source type | SYNCHROTRON |
Source details | NSLS BEAMLINE X25 |
Synchrotron site | NSLS |
Beamline | X25 |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2002-10-12 |
Detector | ADSC QUANTUM 4 |
Wavelength(s) | 0.98, 0.9794, 0.9790, 0.9687 |
Spacegroup name | P 1 |
Unit cell lengths | 43.163, 52.501, 77.925 |
Unit cell angles | 99.44, 106.58, 99.89 |
Refinement procedure
Resolution | 72.600 * - 1.700 |
R-factor | 0.1591 |
Rwork | 0.157 |
R-free | 0.19100 * |
Structure solution method | MAD |
RMSD bond length | 0.016 |
RMSD bond angle | 1.500 * |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | SOLVE |
Refinement software | REFMAC (5.1.24) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 72.600 | 1.760 |
High resolution limit [Å] | 1.700 | 1.700 |
Rmerge | 0.057 | 0.238 |
Number of reflections | 65632 | |
<I/σ(I)> | 14.3 | 3.5 |
Completeness [%] | 95.3 * | 79.2 |
Redundancy | 3.5 | 2.3 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 5 | 295 | PEG MME 2000, sodium acetate, ammonium sulfate, strontium chloride, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K |
Crystallization Reagents in Literatures
ID | crystal ID | solution | reagent name | concentration (unit) | details |
1 | 1 | reservoir | PEG2000 MME | 10-15 (%) | |
2 | 1 | reservoir | 100 (mM) | pH5.0 | |
3 | 1 | reservoir | ammonium sulfate | 0.3-0.4 (M) | |
4 | 1 | drop | protein | 15 (mg/ml) |