3NZQ
Crystal Structure of Biosynthetic arginine decarboxylase ADC (SpeA) from Escherichia coli, Northeast Structural Genomics Consortium Target ER600
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | NSLS BEAMLINE X4C |
Synchrotron site | NSLS |
Beamline | X4C |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2010-06-27 |
Detector | MAR CCD 165 mm |
Wavelength(s) | 0.97915 |
Spacegroup name | P 41 21 2 |
Unit cell lengths | 192.522, 192.522, 119.895 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 19.940 - 3.100 |
R-factor | 0.205 |
Rwork | 0.200 |
R-free | 0.23900 |
Structure solution method | SAD |
Data reduction software | HKL-2000 |
Data scaling software | SCALEPACK |
Phasing software | SHELX |
Refinement software | REFMAC |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 30.000 | 3.210 |
High resolution limit [Å] | 3.100 | 3.100 |
Rmerge | 0.172 | 0.769 |
Number of reflections | 41600 | |
<I/σ(I)> | 15.3 | 1.6 |
Completeness [%] | 99.7 | 97.1 |
Redundancy | 12.3 | 9.5 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | Microbatch, under oil | 9 | 277 | Protein solution: 100mM NaCl, 5mM DTT, 0.02% NaN3, 10mM Tris-HCl (pH 7.5) . Reservoir solution: 0.1M Bicine (pH 9) and 1.6M ammonium sulfate., Microbatch, under oil, temperature 277K |