3G9R
Structure of the HIV-1 gp41 Membrane-Proximal Ectodomain Region in a Putative Prefusion Conformation
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | NSLS BEAMLINE X4A |
| Synchrotron site | NSLS |
| Beamline | X4A |
| Temperature [K] | 95 |
| Detector technology | CCD |
| Collection date | 2003-03-22 |
| Detector | ADSC QUANTUM 4 |
| Wavelength(s) | 0.9791 |
| Spacegroup name | P 1 21 1 |
| Unit cell lengths | 42.527, 48.157, 81.782 |
| Unit cell angles | 90.00, 95.38, 90.00 |
Refinement procedure
| Resolution | 19.550 - 2.000 |
| R-factor | 0.21636 |
| Rwork | 0.213 |
| R-free | 0.26908 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1gcm |
| RMSD bond length | 0.026 |
| RMSD bond angle | 2.029 |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | AMoRE |
| Refinement software | REFMAC (5.2.0019) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 19.600 | 2.070 |
| High resolution limit [Å] | 2.000 | 2.000 |
| Rmerge | 0.049 | 0.528 |
| Number of reflections | 22010 | |
| <I/σ(I)> | 14.1 | 2.3 |
| Completeness [%] | 98.0 | 97.5 |
| Redundancy | 3.7 | 3.6 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.6 | 298 | 0.1M sodium HEPES, 0.1M ammonium dihydrogenphosphate, 50% MPD, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K |
