5MQ5
A protease-resistant N24S Escherichia coli Asparaginase mutant with outstanding stability and enhanced anti-leukaemic activity
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | ESRF BEAMLINE ID29 |
Synchrotron site | ESRF |
Beamline | ID29 |
Temperature [K] | 100 |
Detector technology | PIXEL |
Collection date | 2016-06-26 |
Detector | DECTRIS PILATUS3 6M |
Wavelength(s) | 0.976251 |
Spacegroup name | C 1 2 1 |
Unit cell lengths | 152.003, 62.394, 142.271 |
Unit cell angles | 90.00, 117.92, 90.00 |
Refinement procedure
Resolution | 12.970 - 1.600 |
Rwork | 0.147 |
R-free | 0.19790 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 3eca |
RMSD bond length | 0.007 |
RMSD bond angle | 0.794 |
Data reduction software | iMOSFLM (7.2.1) |
Data scaling software | SCALA (CCP4i v7) |
Phasing software | PHASER (CCP4i v7) |
Refinement software | PHENIX |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 48.160 | 1.480 |
High resolution limit [Å] | 1.427 | 1.430 |
Rmerge | 0.061 | 1.284 |
Rmeas | 0.076 | 1.816 |
Rpim | 0.044 | 1.284 |
Number of reflections | 195240 | 11874 |
<I/σ(I)> | 8.6 | |
Completeness [%] | 90.0 | 55.9 |
Redundancy | 2.6 | 1.9 |
CC(1/2) | 0.998 | 0.233 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 294.15 | 100 mM 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid, 5% w/v PEG 8000, 4% v/v ethylene glycol. Soaking in 0.1 mM L-asparatate. |