1G8M
CRYSTAL STRUCTURE OF AVIAN ATIC, A BIFUNCTIONAL TRANSFORMYLASE AND CYCLOHYDROLASE ENZYME IN PURINE BIOSYNTHESIS AT 1.75 ANG. RESOLUTION
Experimental procedure
| Experimental method | MAD |
| Source type | SYNCHROTRON |
| Source details | ALS BEAMLINE 5.0.2 |
| Synchrotron site | ALS |
| Beamline | 5.0.2 |
| Temperature [K] | 93 |
| Detector technology | CCD |
| Collection date | 1999-02-03 |
| Detector | ADSC QUANTUM 4 |
| Wavelength(s) | 0.9799, 0.9801, 0.9648 |
| Spacegroup name | P 1 21 1 |
| Unit cell lengths | 65.100, 106.000, 103.500 |
| Unit cell angles | 90.00, 108.00, 90.00 |
Refinement procedure
| Resolution | 50.000 - 1.750 |
| Rwork | 0.200 |
| R-free | 0.21640 |
| Structure solution method | MAD |
| RMSD bond length | 0.006 |
| RMSD bond angle | 22.300 * |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | SOLVE |
| Refinement software | CNS (0.9) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 50.000 | 1.780 |
| High resolution limit [Å] | 1.750 | 1.750 |
| Rmerge | 0.058 | 0.475 |
| Total number of observations | 460370 * | |
| Number of reflections | 229603 | |
| <I/σ(I)> | 15.8 | 2.4 |
| Completeness [%] | 87.9 | 47.3 |
| Redundancy | 2 | 2 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion * | 7.4 * | 22 * | PEG 8000, imidazole-HCl and DTT, pH 7.2, VAPOR DIFFUSION, SITTING DROP at 295K |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | enzyme | 10 (mg/ml) | |
| 2 | 1 | drop | Tris-HCl | 25 (mM) | |
| 3 | 1 | drop | 150 (mM) | ||
| 4 | 1 | drop | 50 (mM) | ||
| 5 | 1 | drop | dithiothreitol | 5 (mM) | |
| 6 | 1 | drop | EDTA | 5 (mM) | |
| 7 | 1 | reservoir | PEG8000 | 15 (%(w/v)) | |
| 8 | 1 | reservoir | imidazole | 0.2 (M) | |
| 9 | 1 | reservoir | dithiothreitol | 5 (mM) |
