3TR4
Structure of an inorganic pyrophosphatase (ppa) from Coxiella burnetii
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | NSLS BEAMLINE X4C |
Synchrotron site | NSLS |
Beamline | X4C |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2011-04-05 |
Detector | MAR CCD 165 mm |
Wavelength(s) | 0.9012 |
Spacegroup name | P 1 21 1 |
Unit cell lengths | 61.910, 108.654, 74.664 |
Unit cell angles | 90.00, 104.44, 90.00 |
Refinement procedure
Resolution | 29.463 - 2.000 |
R-factor | 0.1829 |
Rwork | 0.181 |
R-free | 0.22560 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1faj |
RMSD bond length | 0.003 |
RMSD bond angle | 0.711 |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | SHARP |
Refinement software | PHENIX (1.7_650) |
Data quality characteristics
Overall | Inner shell | Outer shell | |
Low resolution limit [Å] | 30.000 | 30.000 | 2.030 |
High resolution limit [Å] | 2.000 | 5.420 | 2.000 |
Rmerge | 0.059 | 0.042 | 0.372 |
Number of reflections | 63170 | ||
<I/σ(I)> | 11.3 | ||
Completeness [%] | 97.6 | 95.8 | 79.9 |
Redundancy | 3.6 | 3.7 | 2.4 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 277 | 0.2M potassium nitrate 20% PEG 3350, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K |