1YYM
crystal structure of F23, a scorpion-toxin mimic of CD4, in complex with HIV-1 YU2 gp120 envelope glycoprotein and anti-HIV-1 antibody 17b
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | APS BEAMLINE 22-ID |
| Synchrotron site | APS |
| Beamline | 22-ID |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2003-10-31 |
| Detector | MARRESEARCH |
| Wavelength(s) | 1.000 |
| Spacegroup name | P 1 21 1 |
| Unit cell lengths | 51.620, 157.041, 108.929 |
| Unit cell angles | 90.00, 93.45, 90.00 |
Refinement procedure
| Resolution | 19.990 - 2.200 |
| R-factor | 0.209 |
| Rwork | 0.209 |
| R-free | 0.26800 |
| Structure solution method | FOURIER SYNTHESIS |
| Starting model (for MR) | 1yyl |
| RMSD bond length | 0.006 |
| RMSD bond angle | 1.300 |
| Data reduction software | HKL-2000 |
| Data scaling software | SCALEPACK |
| Phasing software | CNS |
| Refinement software | CNS (1.1) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 20.000 | 2.280 |
| High resolution limit [Å] | 2.200 | 2.200 |
| Rmerge | 0.121 | 0.340 |
| <I/σ(I)> | 8.8 | 1.3 |
| Completeness [%] | 95.0 | 69.2 |
| Redundancy | 3.5 | 2.2 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 5.6 | 293 | PEG 4000, isopropanol, sodium citrate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
