4LCU
Structure of KcsA with E118A mutation
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | NSLS BEAMLINE X25 |
| Synchrotron site | NSLS |
| Beamline | X25 |
| Temperature [K] | 93 |
| Detector technology | CCD |
| Detector | ADSC QUANTUM 315 |
| Wavelength(s) | 1.1000 |
| Spacegroup name | I 4 |
| Unit cell lengths | 155.952, 155.952, 75.952 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 42.898 - 2.752 |
| R-factor | 0.1854 |
| Rwork | 0.183 |
| R-free | 0.21580 |
| Structure solution method | MOLECULAR REPLACEMENT |
| RMSD bond length | 0.008 |
| RMSD bond angle | 1.484 |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | PHASER |
| Refinement software | PHENIX (1.7.3_928) |
Data quality characteristics
| Overall | Inner shell | Outer shell | |
| Low resolution limit [Å] | 50.000 | 50.000 | 2.850 |
| High resolution limit [Å] | 2.750 | 5.920 | 2.750 |
| Rmerge | 0.108 | 0.037 | 0.932 |
| Number of reflections | 23764 | ||
| <I/σ(I)> | 10.9 | ||
| Completeness [%] | 99.7 | 99.6 | 99.3 |
| Redundancy | 7.4 | 7.3 | 7.1 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | PEG 400, MgAcetate, pH 6.5, VAPOR DIFFUSION, HANGING DROP |
