3LDD
High resolution open MthK pore structure crystallized in 100 mM K+ and further soaked in 99 mM Na+/1 mM K+.
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | APS BEAMLINE 19-ID |
| Synchrotron site | APS |
| Beamline | 19-ID |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2008-08-10 |
| Detector | ADSC QUANTUM 315 |
| Wavelength(s) | 0.9794 |
| Spacegroup name | P 4 21 2 |
| Unit cell lengths | 63.323, 63.323, 44.008 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 25.700 - 1.450 |
| R-factor | 0.19315 |
| Rwork | 0.191 |
| R-free | 0.21571 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | MthK pore crystallized in 100 mM K+ |
| RMSD bond length | 0.008 |
| RMSD bond angle | 1.105 |
| Data reduction software | HKL-2000 |
| Data scaling software | HKL-2000 |
| Phasing software | PHASES |
| Refinement software | REFMAC (5.2.0019) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 50.000 | 1.480 |
| High resolution limit [Å] | 1.450 | 1.450 |
| Number of reflections | 16086 | |
| <I/σ(I)> | 57.2 | 1.3 |
| Completeness [%] | 97.7 | 76.1 |
| Redundancy | 9.7 | 4.2 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 293 | 3.0-3.5 M 1,6-Hexandiol, 100 mM HEPES, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K |
