3N3W
2.2 Angstrom Resolution Crystal Structure of Nuclease Domain of Ribonuclase III (rnc) from Campylobacter jejuni
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | APS BEAMLINE 21-ID-D |
Synchrotron site | APS |
Beamline | 21-ID-D |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2010-04-14 |
Detector | MARMOSAIC 300 mm CCD |
Wavelength(s) | 0.97965 |
Spacegroup name | C 2 2 21 |
Unit cell lengths | 62.099, 98.252, 118.410 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 29.600 - 2.205 |
R-factor | 0.17922 |
Rwork | 0.176 |
R-free | 0.23371 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 2a11 |
RMSD bond length | 0.013 |
RMSD bond angle | 1.295 |
Data reduction software | HKL-2000 |
Data scaling software | HKL-2000 |
Phasing software | PHASER |
Refinement software | REFMAC (5.5.0102) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 30.000 | 2.240 |
High resolution limit [Å] | 2.200 | 2.200 |
Rmerge | 0.118 | 0.513 |
Number of reflections | 18659 | |
<I/σ(I)> | 16.7 | 3.3 |
Completeness [%] | 99.9 | 99.1 |
Redundancy | 7.3 | 6.8 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 295 | Protein solution: 7.6 mg/mL, 0.5M Sodium chloride, 0.01M Tris pH 8.3 Screen solution: Classics II (F7), 0.2M Ammonium sulfate, 0.1M BIS-TRIS pH 6.5, 25% (w/v) PEG 3350, VAPOR DIFFUSION, SITTING DROP, temperature 295K |