1MZJ
Crystal Structure of the Priming beta-Ketosynthase from the R1128 Polyketide Biosynthetic Pathway
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | SSRL BEAMLINE BL9-1 |
Synchrotron site | SSRL |
Beamline | BL9-1 |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2000-03-08 |
Detector | ADSC QUANTUM 4 |
Wavelength(s) | 0.9700 |
Spacegroup name | P 31 |
Unit cell lengths | 96.000, 96.000, 72.600 |
Unit cell angles | 90.00, 90.00, 120.00 |
Refinement procedure
Resolution | 500.000 - 2.100 |
R-factor | 0.217 |
Rwork | 0.215 |
R-free | 0.25100 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1ebl |
RMSD bond length | 0.006 * |
RMSD bond angle | 0.006 |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | CNS |
Refinement software | CNS |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 40.000 | 2.140 |
High resolution limit [Å] | 2.100 | 2.100 |
Rmerge | 0.061 * | 0.587 * |
Total number of observations | 264571 * | |
Number of reflections | 43722 | |
<I/σ(I)> | 8.6 | 3 |
Completeness [%] | 99.5 | 100 |
Redundancy | 6.1 * |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.4 | 298 | PEG 8000, sodium cacodylate, magnesium acetate, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K |
Crystallization Reagents in Literatures
ID | crystal ID | solution | reagent name | concentration (unit) | details |
1 | 1 | drop | protein | 2 (mg/ml) | |
2 | 1 | drop | Tris | 10 (mM) | pH7.4 |
3 | 1 | drop | dithiothreitol | 1 (mM) | |
4 | 1 | reservoir | PEG8000 | 10 (%(w/v)) | |
5 | 1 | reservoir | magnesium acetate | 200 (mM) | |
6 | 1 | reservoir | sodium cacodylate | 100 (mM) | pH6.5 |