Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | ESRF BEAMLINE ID23-1 |
| Synchrotron site | ESRF |
| Beamline | ID23-1 |
| Temperature [K] | 100 |
| Detector technology | PIXEL |
| Collection date | 2014-05-14 |
| Detector | DECTRIS PILATUS 6M-F |
| Wavelength(s) | 0.9840 |
| Spacegroup name | P 1 21 1 |
| Unit cell lengths | 121.500, 161.080, 131.600 |
| Unit cell angles | 90.00, 107.26, 90.00 |
Refinement procedure
| Resolution | 49.376 - 3.500 |
| R-factor | 0.2495 |
| Rwork | 0.248 |
| R-free | 0.29350 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 4xam |
| RMSD bond length | 0.003 |
| RMSD bond angle | 0.826 |
| Data reduction software | XDS (November 11, 2013) |
| Data scaling software | XSCALE (Oct 15, 2015) |
| Phasing software | PHASER |
| Refinement software | PHENIX (dev_2376) |
Data quality characteristics
| Overall | Inner shell | Outer shell | |
| Low resolution limit [Å] | 49.540 | 3.590 | |
| High resolution limit [Å] | 3.500 | 8.420 | 3.500 |
| Rmerge | 0.492 | 0.073 | 3.133 |
| Number of reflections | 60261 | ||
| <I/σ(I)> | 4.55 | 20.82 | 0.65 |
| Completeness [%] | 98.6 | 96.1 | 99.3 |
| Redundancy | 7.14 | ||
| CC(1/2) | 0.949 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7 | 292 | the crystals appeared after mixing C4b at 4 mg/ml in 20 mM HEPES pH 7.5, 100 mM sodium chloride with 100 mM HEPES pH 7.0, 400 mM magnesium chloride, 7.5% PEG8000 and a microseeding stock at the volume ration 1:1:0.5. The crystals appeared in 1-2 weeks and reached the final size in 1 month |






