1CT1
CHOLERA TOXIN B-PENTAMER MUTANT G33R BOUND TO RECEPTOR PENTASACCHARIDE
Experimental procedure
| Source type | ROTATING ANODE |
| Source details | RIGAKU RUH2R |
| Temperature [K] | 287 |
| Detector technology | AREA DETECTOR |
| Collection date | 1995-12 |
| Detector | SIEMENS |
| Spacegroup name | C 1 2 1 |
| Unit cell lengths | 103.400, 67.610, 101.700 |
| Unit cell angles | 90.00, 131.66, 90.00 |
Refinement procedure
| Resolution | 15.000 - 2.300 |
| R-factor | 0.182 |
| Rwork | 0.182 |
| R-free | 0.25000 |
| Starting model (for MR) | 1chp |
| RMSD bond length | 0.011 |
| RMSD bond angle | 1.570 |
| Data reduction software | MACRO |
| Data scaling software | MACRO |
| Phasing software | X-PLOR (3.1) |
| Refinement software | X-PLOR (3.1) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 15.000 | 2.380 |
| High resolution limit [Å] | 2.300 | 2.300 |
| Rmerge | 0.098 | |
| Number of reflections | 22182 | |
| Completeness [%] | 95.0 | 55 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion * | 7.5 * | PROTEIN, 20 MM TRIS, 1 MM GM1-OS, PH 7.5 200 MM MGCL2, 100 MM CACODYLATE, 19% PEG 1000, 0.2% AGAROSE, PH 7.2 |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | protein | 2.5 (mg/ml) | |
| 10 | 1 | reservoir | PEG1000 | 19 (%) | |
| 11 | 1 | reservoir | agarose | 0.2 (%) | |
| 2 | 1 | drop | Tris | 10 (mM) | |
| 3 | 1 | drop | GM1 | 0.5 (mM) | |
| 4 | 1 | drop | 100 (mM) | ||
| 5 | 1 | drop | cacodylate | 50 (mM) | |
| 6 | 1 | drop | PEG1000 | 9.5 (%) | |
| 7 | 1 | drop | agarose | 0.1 (%) | |
| 8 | 1 | reservoir | 200 (mM) | ||
| 9 | 1 | reservoir | cacodylate | 100 (mM) |
