1JGI
Crystal Structure of the Active Site Mutant Glu328Gln of Amylosucrase from Neisseria polysaccharea in Complex with the Natural Substrate Sucrose
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | MAX II BEAMLINE I711 |
| Synchrotron site | MAX II |
| Beamline | I711 |
| Temperature [K] | 120 |
| Detector technology | CCD |
| Detector | MARRESEARCH |
| Wavelength(s) | 1.106 |
| Spacegroup name | P 21 21 2 |
| Unit cell lengths | 95.588, 116.739, 60.833 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 27.910 - 2.000 |
| R-factor | 0.186 * |
| Rwork | 0.186 |
| R-free | 0.22600 |
| Structure solution method | MOLECULAR REPLACEMENT |
| RMSD bond length | 0.005 |
| RMSD bond angle | 1.200 |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | CNS |
| Refinement software | CNS |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 3.000 | 2.070 |
| High resolution limit [Å] | 2.000 | 2.000 |
| Rmerge | 0.076 | 0.197 |
| Number of reflections | 39254 | |
| <I/σ(I)> | 10 | |
| Completeness [%] | 84.2 | 86.8 |
| Redundancy | 8 | 8 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion, hanging drop * | 7 * | 4 * |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | protein | 4-5 (mg/ml) | |
| 2 | 1 | drop | 150 (mM) | ||
| 3 | 1 | drop | Tris-HCl | 50 (mM) | |
| 4 | 1 | drop | EDTA | 1 (mM) | |
| 5 | 1 | drop | alpha-dithiothreitol | 1 (mM) | |
| 6 | 1 | reservoir | PEG6000 | 30 (%(w/v)) | |
| 7 | 1 | reservoir | HEPES | 100 (mM) |
