8I2A
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 | 61.741, 80.539, 77.258 |
Unit cell angles | 90.00, 106.30, 90.00 |
Refinement procedure
Resolution | 50.000 - 2.350 |
R-factor | 0.21578 |
Rwork | 0.214 |
R-free | 0.24408 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 5v0i |
RMSD bond length | 0.007 |
RMSD bond angle | 1.102 |
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 | 2.440 |
High resolution limit [Å] | 2.350 | 2.350 |
Rmerge | 0.126 | 0.614 |
Rmeas | 0.151 | 0.732 |
Rpim | 0.081 | 0.395 |
Total number of observations | 10471 | |
Number of reflections | 30223 | 3155 |
<I/σ(I)> | 7 | 2 |
Completeness [%] | 99.5 | |
Redundancy | 3.4 | 3.3 |
CC(1/2) | 0.990 | 0.744 |
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 |