8I27
E. coli tryptophanyl-tRNA synthetase bound with a chemical fragment at the dimerization interface
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | SSRF BEAMLINE BL19U1 |
Synchrotron site | SSRF |
Beamline | BL19U1 |
Temperature [K] | 100 |
Detector technology | PIXEL |
Collection date | 2020-11-19 |
Detector | DECTRIS PILATUS3 6M |
Wavelength(s) | 0.9785 |
Spacegroup name | P 1 21 1 |
Unit cell lengths | 61.717, 80.588, 77.159 |
Unit cell angles | 90.00, 106.22, 90.00 |
Refinement procedure
Resolution | 50.000 - 1.950 |
R-factor | 0.19217 |
Rwork | 0.190 |
R-free | 0.22545 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 5v0i |
RMSD bond length | 0.007 |
RMSD bond angle | 1.157 |
Data reduction software | XDS |
Data scaling software | Aimless |
Phasing software | MOLREP |
Refinement software | REFMAC (5.8.0258) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 50.000 | 2.000 |
High resolution limit [Å] | 1.950 | 1.950 |
Rmerge | 0.057 | 0.423 |
Rmeas | 0.068 | 0.507 |
Rpim | 0.036 | 0.276 |
Total number of observations | 10695 | |
Number of reflections | 51416 | 3416 |
<I/σ(I)> | 12.9 | 2.8 |
Completeness [%] | 97.3 | |
Redundancy | 3.4 | 3.1 |
CC(1/2) | 0.997 | 0.889 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, SITTING DROP | 290 | 0.16M Ammonium sulfate, 0.1M HEPES pH 7.5, 25% PEG 3350 |