4UUJ
POTASSIUM CHANNEL KCSA-FAB WITH TETRAHEXYLAMMONIUM
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | APS BEAMLINE 22-ID |
Synchrotron site | APS |
Beamline | 22-ID |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2007-11-19 |
Detector | MARRESEARCH |
Spacegroup name | I 4 |
Unit cell lengths | 154.615, 154.615, 75.953 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 28.640 - 2.400 |
R-factor | 0.19436 |
Rwork | 0.191 |
R-free | 0.24823 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1k4c |
RMSD bond length | 0.014 |
RMSD bond angle | 1.697 |
Data reduction software | XDS |
Data scaling software | XSCALE |
Phasing software | PHASER |
Refinement software | REFMAC (5.8.0069) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 50.000 | 2.540 |
High resolution limit [Å] | 2.400 | 2.400 |
Rmerge | 0.050 | 0.580 |
Number of reflections | 32854 | |
<I/σ(I)> | 17.1 | 2.1 |
Completeness [%] | 98.1 | 97.7 |
Redundancy | 3.31 | 3.31 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | 5.4 | CRYSTALLIZATION CONDITIONS: 18-25% PEG400, 50 MM SODIUM REMARK 280 ACETATE, 50 MM MAGNESIUM ACETATE, pH 5.4 |