6RF4
Crystal structure of the potassium-pumping S254A mutant of the light-driven sodium pump KR2 in the pentameric form, pH 8.0
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | ESRF BEAMLINE ID30B |
| Synchrotron site | ESRF |
| Beamline | ID30B |
| Temperature [K] | 100 |
| Detector technology | PIXEL |
| Collection date | 2017-12-08 |
| Detector | DECTRIS PILATUS 6M |
| Wavelength(s) | 1.000 |
| Spacegroup name | C 2 2 21 |
| Unit cell lengths | 131.396, 240.045, 135.140 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 44.910 - 2.400 |
| R-factor | 0.1827 |
| Rwork | 0.181 |
| R-free | 0.21220 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 6REW |
| RMSD bond length | 0.003 |
| RMSD bond angle | 0.628 |
| Data reduction software | XDS |
| Data scaling software | Aimless (0.6.3) |
| Phasing software | MOLREP |
| Refinement software | REFMAC (5.8.0222) |
Data quality characteristics
| Overall | Inner shell | Outer shell | |
| Low resolution limit [Å] | 48.050 | 48.050 | 2.450 |
| High resolution limit [Å] | 2.400 | 12.470 | 2.400 |
| Rmerge | 0.119 | 0.034 | 1.481 |
| Rmeas | 0.134 | 0.040 | 1.662 |
| Rpim | 0.060 | 0.020 | 0.742 |
| Total number of observations | 393507 | 2615 | 21463 |
| Number of reflections | 83365 | 662 | 4530 |
| <I/σ(I)> | 9.1 | 29.3 | 1 |
| Completeness [%] | 99.9 | 97.4 | 99.9 |
| Redundancy | 4.7 | 4 | 4.7 |
| CC(1/2) | 0.998 | 0.999 | 0.521 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | LIPIDIC CUBIC PHASE | 293 | 3.4 M Sodium Malonate pH 8.0 |
