1IB4
Crystal Structure of Polygalacturonase from Aspergillus Aculeatus at Ph4.5
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | ROTATING ANODE |
| Source details | RIGAKU RU200H |
| Temperature [K] | 288 |
| Detector technology | AREA DETECTOR |
| Collection date | 1999-12-01 |
| Detector | ENRAF-NONIUS FAST |
| Wavelength(s) | 1.5418 |
| Spacegroup name | P 1 21 1 |
| Unit cell lengths | 56.100, 96.400, 57.770 |
| Unit cell angles | 90.00, 107.30, 90.00 |
Refinement procedure
| Resolution | 24.100 - 2.000 |
| R-factor | 0.168 |
| Rwork | 0.168 |
| R-free | 0.21700 |
| Structure solution method | MOLECULAR REPLACEMENT |
| RMSD bond length | 0.006 * |
| RMSD bond angle | 1.300 * |
| Data reduction software | MADNESS |
| Data scaling software | SCALA |
| Phasing software | CNS |
| Refinement software | CNS |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 25.000 | 2.130 |
| High resolution limit [Å] | 2.000 | 2.020 * |
| Rmerge | 0.087 | 0.156 |
| Total number of observations | 77804 * | |
| Number of reflections | 33790 | |
| <I/σ(I)> | 13.2 | |
| Completeness [%] | 91.4 | 84.6 * |
| Redundancy | 2.3 | 4.6 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion, hanging drop * | 4.5 * | 4 * | 30% PEG400, 0.02M CdCl2, 0.1M sodium acetate pH 4.5 , pH 4.6, MICRODIALYSIS, temperature 277K |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | reservoir | PEG400 | 30 (%(w/v)) | |
| 2 | 1 | reservoir | 0.02 (M) | ||
| 3 | 1 | reservoir | sodium acetate | 0.1 (M) | |
| 4 | 1 | drop | protein | 10 (mg/ml) |
