1E6N
Chitinase B from Serratia marcescens inactive mutant E144Q in complex with N-acetylglucosamine-pentamer
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | ESRF BEAMLINE ID14-1 |
| Synchrotron site | ESRF |
| Beamline | ID14-1 |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2000-03-27 |
| Detector | MARRESEARCH |
| Spacegroup name | P 21 21 21 |
| Unit cell lengths | 55.732, 104.476, 186.676 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 38.580 - 2.250 |
| R-factor | 0.189 |
| Rwork | 0.189 |
| R-free | 0.23900 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1e15 |
| RMSD bond length | 0.010 |
| RMSD bond angle | 23.900 * |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | CNS |
| Refinement software | CNS (1.0) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 40.000 | 2.330 |
| High resolution limit [Å] | 2.250 | 2.250 |
| Rmerge | 0.046 | 0.195 |
| Total number of observations | 123855 * | |
| Number of reflections | 47907 | 3349 * |
| <I/σ(I)> | 22.6 | 4.7 |
| Completeness [%] | 89.8 | 63.1 |
| Redundancy | 2.6 | 2.0 * |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion, hanging drop * | 5.6 * | Van Aalten, D.M.F., (2000) Proc. Natl. Acad. Sci. U.S.A., 97, 5842. * |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | protein | 10 (mg/ml) | |
| 2 | 1 | reservoir | citrate | 50 (mM) | |
| 3 | 1 | reservoir | 0.5 (M) | ||
| 4 | 1 | reservoir | ammonium sulfate | 0.25 (M) |
