4XMI
Crystal structure of the K499G mutant of NanB sialidase from Streptococcus pneumoniae
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | ROTATING ANODE |
| Source details | RIGAKU MICROMAX-007 HF |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2011-08-21 |
| Detector | RIGAKU |
| Wavelength(s) | 1.5418 |
| Spacegroup name | P 21 21 21 |
| Unit cell lengths | 76.295, 82.651, 117.152 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 23.800 - 1.970 |
| R-factor | 0.1666 |
| Rwork | 0.165 |
| R-free | 0.20610 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 2vw0 |
| RMSD bond length | 0.007 |
| RMSD bond angle | 1.103 |
| Data reduction software | HKL-2000 |
| Data scaling software | HKL-2000 |
| Phasing software | PHASER |
| Refinement software | PHENIX |
Data quality characteristics
| Overall | Inner shell | Outer shell | |
| Low resolution limit [Å] | 30.000 | 30.000 | 2.000 |
| High resolution limit [Å] | 1.970 | 5.340 | 1.970 |
| Rmerge | 0.101 | 0.063 | 0.277 |
| Total number of observations | 250563 | ||
| Number of reflections | 52883 | ||
| <I/σ(I)> | 13 | 7.9 | |
| Completeness [%] | 99.6 | 95.8 | 100 |
| Redundancy | 4.7 | 4.7 | 4.6 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 8 | 298 | 7% PEG 8000, 0.1M IMIDAZOLE |
