6P27
Structure of a nested set of N-terminally extended MHC I-peptides provides novel insights into antigen processing and presentation
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | APS BEAMLINE 21-ID-F |
| Synchrotron site | APS |
| Beamline | 21-ID-F |
| Temperature [K] | 80 |
| Detector technology | CCD |
| Collection date | 2018-08-16 |
| Detector | MARMOSAIC 300 mm CCD |
| Wavelength(s) | 0.987 |
| Spacegroup name | P 21 21 21 |
| Unit cell lengths | 50.607, 81.318, 110.728 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 19.995 - 1.593 |
| R-factor | 0.1929 |
| Rwork | 0.192 |
| R-free | 0.21270 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1agb |
| RMSD bond length | 0.006 |
| RMSD bond angle | 1.076 |
| Data reduction software | XDS |
| Data scaling software | XDS |
| Phasing software | MOLREP |
| Refinement software | PHENIX (1.8.1_1168) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 20.000 | 1.650 |
| High resolution limit [Å] | 1.590 | 1.590 |
| Rmerge | 0.052 | |
| Number of reflections | 61436 | 5682 |
| <I/σ(I)> | 22.1 | |
| Completeness [%] | 99.3 | 96 |
| Redundancy | 8.1 | 6.5 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 298 | 0.2 M ammonium sulfate, 18% PEG4000, 0.1 M sodium cacodylate, pH 5.7 |
