Table 2. Data-collection statistics.
Data are from a single crystal. No outliers were observed in the Ramachandran plots.
| Fab–Aβ8 | Fab–Aβ28 | |
|---|---|---|
| Space group† | P21221 | P21221 |
| Unit-cell parameters (Å) | a = 60.2, b = 83.4, c = 88.3 | a = 59.3, b = 83.0, c = 91.2 |
| Resolution (Å) | 2.0 (2.07–2.00) | 2.2 (2.28–2.20) |
| Wavelength (Å) | 0.9537 | 0.9537 |
| No. of unique reflections | 30725 | 22098 |
| R merge ‡ (%) | 10.4 (36.9) | 16.3 (78.8) |
| R p.i.m. (%) | 2.7 (9.9) | 4.8 (34.3) |
| R r.i.m. (%) | 10.3 (38.2) | 17.1 (84.7) |
| Mean I/σ(I) | 23.4 (6.5) | 11.2 (2.8) |
| Completeness (%) | 100.0 (100.0) | 94.4 (75.7) |
†
Data were indexed, refined and scaled in point group P222. Space groups were assigned after initial molecular replacement using Phaser from the PHENIX software suite (Adams et al., 2010 ▶).
‡
R
merge = 
, where Ii(hkl) is the observed intensity and 〈I(hkl)〉 is the average intensity from multiple measurements.