2FH8
Crystal Structure Analysis of Klebsiella pneumoniae pullulanase complexed with isomaltose
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | SPRING-8 BEAMLINE BL24XU |
| Synchrotron site | SPring-8 |
| Beamline | BL24XU |
| Temperature [K] | 100 |
| Detector technology | IMAGE PLATE |
| Collection date | 2000-06-03 |
| Detector | RIGAKU RAXIS IV |
| Wavelength(s) | 0.836 |
| Spacegroup name | C 1 2 1 |
| Unit cell lengths | 149.525, 60.320, 134.019 |
| Unit cell angles | 90.00, 112.62, 90.00 |
Refinement procedure
| Resolution | 15.000 - 1.900 |
| R-factor | 0.177 |
| Rwork | 0.177 |
| R-free | 0.22100 |
| Structure solution method | MIR |
| RMSD bond length | 0.005 |
| RMSD bond angle | 1.300 |
| Phasing software | PHASES |
| Refinement software | CNS (1.1) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 50.000 | 2.000 |
| High resolution limit [Å] | 1.900 | 1.900 |
| Rmerge | 0.070 | 0.153 |
| Number of reflections | 82489 | |
| <I/σ(I)> | 14.5 | 3.5 |
| Completeness [%] | 93.8 | 92.9 |
| Redundancy | 2.97 | 1.89 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6 | 293 | 15-25% polyethyleneglycol 6000 in 0.2M magnesium acetate, 0.2M sodium acetate buffer, The crystal was soaked with 300mM isomaltose for 30 min at 20 deg.C, followed by flash-freezing in a nitrogen gas stream at 100K without any cryo-protectant., pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
