6CW7
E. coli DHFR product complex with (6S)-5,6,7,8-TETRAHYDROFOLATE
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | APS BEAMLINE 31-ID |
| Synchrotron site | APS |
| Beamline | 31-ID |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2017-12-08 |
| Detector | RAYONIX MX-225 |
| Wavelength(s) | 0.97931 |
| Spacegroup name | P 21 21 21 |
| Unit cell lengths | 33.861, 51.529, 77.841 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 31.060 - 1.030 |
| R-factor | 0.186 |
| Rwork | 0.186 |
| R-free | 0.20600 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 7dfr |
| RMSD bond length | 0.008 |
| RMSD bond angle | 1.387 |
| Data reduction software | XDS |
| Data scaling software | XSCALE |
| Phasing software | PHASER |
| Refinement software | PHENIX |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 31.057 | 1.090 |
| High resolution limit [Å] | 1.030 | 1.030 |
| Rmerge | 0.064 | 1.019 |
| Number of reflections | 65916 | |
| <I/σ(I)> | 12.57 | 1.01 |
| Completeness [%] | 97.3 | 84.2 |
| Redundancy | 6.354 | 3.06 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 293.15 | 20 mg/ml protein working stock was prepared from 2:1 v/v mixing of 30mg/ml protein in 20mM Tris pH 8, 1mM DTT and 50mM HEPES pH 7.3, 100mM NaCl. Then the working protein stock at 20 mg/ml is mixed at 1:1 v/v ratio with reservoir solution of 0.1M MES pH 6.5, 30% PEG3350, 0.4M MgCl2 |
