6BQ9
2.55 Angstrom Resolution Crystal Structure of N-terminal Fragment (residues 1-493) of DNA Topoisomerase IV Subunit A from Pseudomonas putida
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | APS BEAMLINE 21-ID-F |
| Synchrotron site | APS |
| Beamline | 21-ID-F |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2017-10-17 |
| Detector | MARMOSAIC 300 mm CCD |
| Wavelength(s) | 0.97872 |
| Spacegroup name | C 2 2 21 |
| Unit cell lengths | 71.494, 224.057, 115.747 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 29.350 - 2.550 |
| R-factor | 0.20958 |
| Rwork | 0.208 |
| R-free | 0.24654 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 5eix |
| RMSD bond length | 0.008 |
| RMSD bond angle | 1.410 |
| Data reduction software | HKL-3000 |
| Data scaling software | HKL-3000 |
| Phasing software | MoRDa |
| Refinement software | REFMAC (5.8.0189) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 30.000 | 2.590 |
| High resolution limit [Å] | 2.550 | 2.550 |
| Rmerge | 0.068 | 0.785 |
| Rmeas | 0.074 | 0.848 |
| Rpim | 0.027 | 0.316 |
| Number of reflections | 30230 | 1450 |
| <I/σ(I)> | 28.3 | 2.2 |
| Completeness [%] | 99.0 | 98.8 |
| Redundancy | 7.4 | 6.8 |
| CC(1/2) | 0.903 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7 | 295 | Protein: 9.5 mg/ml, 0.01M Tris HCl (pH 8.3); Screen: Classics II (C1), 3.5M Sodium formate pH (7.0); Cryo: 4.0M Sodium formate |
