1WIQ
STRUCTURE OF T-CELL SURFACE GLYCOPROTEIN CD4, TRIGONAL CRYSTAL FORM
Experimental procedure
| Source type | SYNCHROTRON |
| Source details | CHESS BEAMLINE F1 |
| Synchrotron site | CHESS |
| Beamline | F1 |
| Temperature [K] | 298 |
| Spacegroup name | P 31 2 1 |
| Unit cell lengths | 126.000, 126.000, 205.000 |
| Unit cell angles | 90.00, 90.00, 120.00 |
Refinement procedure
| Resolution | 8.000 - 5.000 |
| R-factor | 0.422 |
| Rwork | 0.422 |
| R-free | 0.44200 |
| Structure solution method | MOLECULAR REPLACEMENT PLUS ANOMALOUS DIFFRACTION. |
| RMSD bond length | 0.015 |
| RMSD bond angle | 2.300 |
| Data reduction software | DENZO |
| Data scaling software | CCP4 |
| Phasing software | X-PLOR |
| Refinement software | X-PLOR |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 8.000 * | |
| High resolution limit [Å] | 5.000 * | |
| Rmerge | 0.086 * | 0.295 * |
| Number of reflections | 4289 * | |
| Completeness [%] | 67.3 * | 49.9 * |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | Vapor diffusion, hanging drop * | 8.2 * | 20 * | Kwong, P.D., (1990) Proc. Natl. Acad. Sci. U.S.A., 87, 6423. * |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | PEG400 | 0.23 (%) | |
| 2 | 1 | drop | ammonium phosphate | 183 (mM) | |
| 3 | 1 | drop | sodium phosphate | 40 (mM) | |
| 4 | 1 | drop | Tris-HCl | 10 (mM) | |
| 5 | 1 | drop | 3.1 (mM) | ||
| 6 | 1 | drop | sCD4 | 4.0 (mg/ml) | |
| 7 | 1 | reservoir | ammonium sulfate | 39.0 (%sat) | |
| 8 | 1 | reservoir | Tris-HCl | 100 (mM) | |
| 9 | 1 | reservoir | 74 (mM) |
